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Capture User's Guide

1. Property name Example value Description ECLTYPE SOURCE Defines a pin as a Source Load or Target in terms of daisy chain reconnection PINGROUP 1 Identifies pin swapping restrictions within a gate In order to be swapped two pins must belong to the same gate and to the same pin group 290 Creating a netlist for use in Layout After you prepare your design in Capture and it is free from design rules violations you can create a netlist MNL file for use with Layout A copy of the LAYOUTL INI file must exist in the same directory as CAPTURE EXE to generate a netlist To create a netlist for use in Layout 1 Open the Capture design 2 From the Tools menu choose Create Netlist The Create Netlist dialog box appears 3 Click the Layout tab The Layout tab appears 4 In the PCB Footprint group box ensure that PCB Footprint is displayed in the Combined property string text box 5 Inthe Netlist File text box ensure that the path to the netlist file is correct The netlist takes the name of the Capture design and adds a MNL extension 6 Click OK Capture processes the netlist then creates an MNL file and saves it in the directory you specified in the previous step Creating a netlist for use in Layout Tip Save your Capture design before creating a netlist For information about combined property strings see Capture s online help Note You may choose to exit Capture at this time It is no
2. This guide OrCAD Capture User s Guide Online help Online interactive tutorial Basic information to get started in Capture The OrCAD Capture User s Guide is an overview of the features available in Capture Comprehensive information about Capture If you can t find something in the Capture User s Guide look in the online help You can access help from the Help menu in Capture by choosing the Help button in a dialog box or by pressing F1 Topics include e Explanations and instructions for common tasks e Descriptions of menu commands dialog boxes tools on the toolbar and tool palettes and the status bar e Netlist format samples error messages and glossary terms e Reference information e Product support information You can get context sensitive help for a error message by placing your cursor in the error message line in the session log and pressing F1 A series of self paced interactive lessons You can practice what you ve learned by going through the tutorial s specially designed exercises that interact directly with Capture You can start the tutorial by choosing Learning Capture from the Help menu Online Converting MicroSim Schematics Designs to A quick start guide to using the Schematics to Capture OrCAD Capture Designs Quick Start Online OrCAD Capture User s Guide Online Capture Quick Reference Card XX translator Includes how to convert MicroSim schematics symbol libraries
3. 4 Activate the other Windows application and use that application s Paste command to place the text Character formatting You may want the text to have a distinctive appearance or to fit within a specific space Capture supports TrueType fonts You can preview a sample of the selected font before you choose it You can also select the default font that you set up in the Fonts tab in either the Design Template dialog box or the Design Properties dialog box available from the Options menu To change fonts and point sizes 1 If you are placing the text choose Text from the Place menu The Place Text dialog box appears or If the text has already been placed double click the text The Edit Text dialog box appears 2 Inthe Font group box click the Change button The Font dialog box appears 3 Select a font style and size Sample text displays in the Sample group box Placing text 165 Chapter 8 Adding and editing graphics and text 4 Click OK twice About screen fonts For information about setting up your screen fonts see Chapter 4 Setting up your project 166 Using macros In the schematic page editor you can create a macro by recording a series of editing actions For example you can begin a macro recording place a wire place text that names the wire then stop the macro recording Macros are recorded at the command level not at the keystroke level and each macro is stored as a separate file You
4. 7 If necessary set the Part Value and PCB Footprint combined property strings to reflect the information you want in the netlist If necessary set the format specific options in the Options group box and click OK to close the Netlist Options dialog box Click OK to create the netlist Using the Create Netlist tool For information about using combined property strings options for individual netlist formats and options in the Create Netlist dialog box see Capture s online help 261 Chapter 15 Creating a netlist For Intormation about the characteristics i i formatting options and an example of N etl Ist format fi les tlist format ture s onli T ai ome APE SOM Capture includes over 30 netlist format file types They include Tablel Netlist format file types Accel Algorex Allegro AlteraADF AppliconBRAVO AppliconLEAP Cadnetix Calay Calay 90 Case CBDS ComputerVision DUMP EDIF flat EDIF 2 0 0 hierarchical PDUMP EEDESIGNER FutureNet HiLo IntelADF Intergraph Layout Mentor MultiWire OHDL PADS 2000 PADS PCB PCAD PCB PCADnlt PLDNet RacalRedac Scicards SPICE Tango Telesis Vectron Verilog VHDL VST VST Model WireList RINF XNF 262 Netname resolution In your schematic designs you can assign a variety of netnames and aliases to signals that are connected A netlist however needs exactly one name for each net If the Create Netlist tool encounters multiple names for a single net higher pr
5. The different parts that make up a package can be identical in their graphic appearance and electrical connectivity homogeneous or they can be dissimilar in their graphic appearance or electrical connectivity heterogeneous In addition to the package view a library part has a part view which is a graphical representation used to define a single logical electrical object whose electrical connectivity is represented by pins 111 Chapter 7 Placing editing and connecting parts and electrical symbols HF FULLADD DSN 74L 32_0 BEE Figure 41 Part editor in part view Each part has a set of properties that contains information such as part value and reference designator used by layout or simulation tools In addition you can create your own unique part properties that hold information relevant to your application Tip Apart doesn t necessarily needpins If Parts have pins that define the part s electrical a part doesn t have pins itis listed ina bill connectivity Pins carry information in properties that of materials report but doesn t appear ina define the characteristics of each pin This information netlist This is useful if you want to show includes the pin s name number shape clock dot hardware such as screws nuts or dot clock line short or zero length type 3 state washers in a bill of materials report bidirectional input open collector open emitter output passive or power
6. The session log lists the events that have occurred during the current Capture session including messages resulting from using Capture s tools To display context sensitive help for an error message put the cursor in the error message line in the session log and press F1 The ruler along the top appears in either inches or millimeters depending on which measurement system U S or Metric is selected in the Windows Control Panel You can add tab settings to the ruler by clicking in the ruler bar dragging the tabs to different positions or remove them by dragging them down into the session log window Your tab settings are saved and used each time you start Capture Pi Session Log Iof x Bill Of Materials Performing BOM BOM Done Tip You can clear the session log by choosing the Clear Session Log command or by pressing Ctrl Del 14 Figure 8 Session log You can search for information in the session log using the Find command on the Edit menu You can also save the contents of the session log to a file which is useful when working with OrCAD s technical support staff to solve technical problems The default filename is SESSION TXT The session log To display the session log 1 Click on the session log s maximize button or choose Session Log from the Window menu To minimize the session log 1 Click the minimize button on the title bar To copy session log text to the Cli
7. empty Do not change updated properties visibility Specifies that the visibility of the updated properties is not changed Make the updated property visible invisible Specifies that the updated property is to be made visible or invisible Instance properties can be changed but the visibility of occurrence properties cannot be changed Create a report file Specifies whether or not Capture creates a report file If you select this option enter the name of the report file in the Report File text box Report File Specifies a report filename and path if the Create a report file option is selected Property Update File The name of the update file containing the properties to match the properties to update and the values to use to update the properties Update Part Properties looks for a file with an extension of UPD but any file extension can be specified Updating properties Update file format The update file is an ASCII text file that you create to specify the properties to match the properties to update and the values to use to update the properties The file can include comments any text to the right of a semicolon is ignored by the Update Properties tool The first line of the update file has this format CombinedPropString PropToUpdatel PropToUpdate2 The first field is a combined property string specifying Note For information about combined which properties to combine into a match string note that prope
8. 7 Click OK The design or library is imported into your project Exporting and importing properties You use the Export Properties and Import Properties commands to change properties of parts and pins in a spreadsheet application a database application or ina text editor that preserves tab characters First export the properties to a property file edit the property file in the application of your choice then import the edited properties Exporting properties You can export properties from a design or a library To export properties 1 Inthe project manager open the project containing the part properties to export 2 If you are exporting properties from a design select the schematic folders or schematic pages containing the properties to export or If you are exporting properties from a library select the parts to export Exporting and importing properties From the project manager s Tools menu choose Export Properties The Export Properties dialog box appears Cancel Contents __ Her Part Properties Part and Pin Properties Mode Export Instance Properties Export Occurrence Properties Export File C PROGRAM FILESSORCADSCAPTURESDE Browse Figure 76 Export Properties dialog box 4 Specify whether the property file is to include all documents in the file or just the documents you selected Specify whether you want to export properties for parts only or for parts a
9. Check entire design Check selection m Action Check design rules Delete existing DRC markers m Report I Create DAC markers for warnings J Check hierarchical port connections I Check unconnected nets J Check off page connector connections M Check SDT compatibility I Report identical part references I Report off grid objects IV Report invalid packaging I Report all net names Report hierarchical ports and off page connectors Report File J View Output C PROGRAM FILES ORCAD CAPTURESDESIGNS FUL Browse Figure 68 Design Rules Check tab of the Design Rules Check dialog box Scope Specifies whether to process the entire project or just the selected schematic page or pages Checking for design rules violations 247 Chapter 14 Preparing to create a netlist 248 Action Specifies whether to check for design rules violations or just delete existing DRC markers Note that if you select the Check design rules option Capture deletes existing DRC markers before it begins the design rules check Report All the remaining options on the dialog box are report options and leave messages and reports in the session log Selected report options are also included in the specified report file Create DRC markers for warnings Design Rules Check always places DRC markers on the schematic page for errors defined in the ERC Matrix tab If you select this option it also places DRC symbols on the schem
10. Click the left mouse button on the schematic page to set a location to begin recording the macro From the schematic page editor s Macro menu choose Record The macro recorder tool palette containing three buttons displays as shown Perform the series of edits that you want to record as a macro using the three macro record buttons as necessary Use the left button to stop recording the macro Use the center button to pause recording The pause mode is in effect until you click the center button again Use the right button to cause a command to begin recording in a with dialog mode If a command is recorded in this mode the value you enter while recording the macro is not saved Instead when the macro is run the command displays a dialog box so that you can fill ina value When recording the with dialog mode is in effect until you click the right button again Use this button again to stop recording in with dialog mode Choose the left macro record button to stop recording the macro Recording a macro fle 169 Chapter 9 Using macros 170 Playing a macro Choose Play from the Macro menu to play back the most recently recorded macro or any macro you choose in the Configure Macro dialog box To play a macro 1 Click the left mouse button on the schematic page to set a location to begin playing the macro 2 From the schematic page editor s Macro menu choose Play or From the Configur
11. Note If you choose Save when a schematic page window is active only that page s design is saved not the entire project However when you attempt to close the project a dialog box asks if you want to save any project files that have been edited but not yet saved 50 Saving projects designs and libraries When the project manager window is active you can save a new or existing project design or library The Save command saves all open documents referenced by the project as well as the project itself The Save As command saves files depending on what you have selected in the project manager e Ifone or more designs or libraries are selected you are prompted to save each file in turn e If no top level folders Design Resources or Outputs are selected and items other than designs or libraries are selected the Save As command is unavailable e If no designs or libraries are selected in the project manager you are prompted to save the project To save a new design or library 1 With the design or library selected in the project manager from the File menu choose Save The Save As dialog box displays 2 Enter a name for the design or library in the File name text box specify a location then choose the Save button The design or library is saved and the project manager remains open When you close the project Capture prompts you to save the project file To save an existing project 1 With the Design Re
12. R Means to hold down the key while pressing R at F 0 From the File menu choose Open Ait F 0 Means that you have two options You can use the mouse to choose the Open command from the File menu or you can press each of the keys in parentheses in order first alt then F then 0 Monospace font In the Part Name text box type PARAM Text that you type is shown in monospace font In the example you type the characters P A R A and M MODEL MLOAD NMOS Examples of syntax netlist output LEVEL 1 VTO 0 7 CJ 0 02pF and source code are displayed in monospace font The example shows an example of the syntax for the PSpice MODEL statement UPPERCASE In Capture open CLIPPERA DSN Path and filenames are shown in uppercase In the example you open the design file named CLIPPERA DSN Italics In Capture save design_name DSN Information that you are to provide is shown in italics In the example you save the design with a name of your choice but it must have an extension of DSN xix Before you begin Related documentation In addition to this guide you can find technical product information in the online help the online interactive tutorial online books OrCAD s technical web site as well as other books The table below describes the types of technical documentation provided with Capture This documentation component Provides this
13. 10000112204 LUF Capacitor Ceramic Disk 10000211006 ta LUF Capacitor Ceramic Disk 10000211007 In the example above the first column contains the match strings If a match string matches the Include File Combined property string for the current part the rest of the line in the example above the second and third 269 Chapter 16 Creating reports 270 columns is tacked on to the end of the line item in the bill of materials To get a property formatted bill of materials using the sample include file enter value in the include file match string and add t to the end of the Header and Line Item combined property string Creating a cross reference report The Cross Reference tool creates a report of all parts with their part references and part names You may specify that the report also give the coordinates of each part To create a cross reference report 1 From the project manager s Tools menu choose Cross Reference The Cross Reference Parts dialog box displays 2 Fill in this dialog box as desired If you want to customize the information contained in the cross reference report fill in the information in the Report area 3 Click OK when you are ready to create the report Cross Reference Parts dialog box Cross Reference Parts x C Cross reference selection Cancel Help m Sorting Sort output by part value then by reference designator Sort output by reference designator then by part v
14. Placing and editing parts Searching for parts Capture is able to search for a particular part inside all the libraries it finds in the specified directory To find a part 1 Inthe schematic page editor choose Part from the Place menu 2 Click the Part Search button The Part Search dialog box appears 3 Enter the part name you want to locate 4 Click Browse to locate the directory where your libraries are located 5 Click Begin Search Capture returns the names of all the libraries in the specified directory that contain your part Editing parts You can move a part on a schematic page by selecting it Note For more information about editing and dragging it to a new location You can use the Rotate parts see Chapter 12 Creating and editing or the Mirror command from the Edit menu You can use parts the part editor to change the part s physical appearance and you can edit the part s properties When you edit a part on a schematic page your edited part differs from the part in the library and exists only in your design you can place another copy of the part you edited by using the Copy command from the Edit menu and by dragging the part from the design cache 117 Chapter 7 Placing editing and connecting parts and electrical symbols To edit the physical appearance of a part select it and either choose Part from the Edit menu or choose Edit Part from the right mouse button pop up menu This opens the
15. The library part that was used to define the part instance appears in the part editor Edit the part You can resize it add graphics or symbols and add or delete pins These processes are all described in Creating a new part earlier in this chapter You can also edit the part s properties Editing properties is described in Chapter 2 The Capture work environment When you are done editing the part you must close it and save the changes on the schematic page From the File menu choose Close A dialog box appears asking if you would like to e Update only the part instance being edited Update Current e Update all instances of the part in the project Update All e Discard the edits to the part and return to the schematic page editor Discard e Cancel the close operation and return to the part editor to continue making changes to the part Cancel Editing an existing part 223 Chapter 12 Creating and editing parts For information on adding properties to part instances see Chapter 2 The Capture work environment 224 After you choose a response the part editor window closes Depending on your response the change is reflected in the selected part or in all instances of the selected part A new part with _n appended to the part name appears in the design cache indicating that the link to the library part no longer exists To display invisible power pins on a part instance 1 3 4 I
16. enable or disable the highlighting feature Preferences x m Syntax Highlighting r Current Font Setting ca Keywords Font Courier New Siz 10 C Comments Style Regular BB ouctes Strings Effects None B entities Color ME Set M Show line numbers Tab Spacing fo 25 7 Highlight Keywords Comments and Quoted Strings Reset Cancel Help Figure 23 Text Editor tab of the Preferences dialog box To set text editor options 1 From the Options menu choose Preferences then choose the Text Editor tab 2 Set these options Syntax Highlighting Select the color to use to highlight VHDL keywords comments and quoted strings You can choose a different color for each e Current Font Setting Click Set to change the font setting for the text editor to values other than those displayed e Tab Spacing Set the tab spacing for the text editor 3 5 Defining your preferences Check the Highlight Keywords Comments and Quoted Strings option to have those VHDL items highlighted in the text editor The colors used to highlight these items are the ones set in the Syntax Highlighting group box If you want to reset the text editor options to the Capture default values click the Reset button Click OK 67 Chapter 4 Setting up your project Setting up your project template The options that you define in the Design Template dialog box are the default settings for all new proj
17. it will snap to the grid To return it to Edit menu choosing Edit Properties from the right mouse its correct position with respect to the button pop up menu or double clicking on it This hierarchical port use the Mirror command displays a dialog box that lets you change the information on the Edit menu or turn snap to grid off for Name and Type Once you have finished editing the and move the text back into place information in the dialog box click OK You can edit the display properties of the text associated with a hierarchical port by selecting the text of the port and choosing Properties from the Edit menu choosing Edit Properties from the right mouse button pop up menu or double clicking on it Using the Display Properties dialog box you can change the text itself or 135 Chapter 7 Placing editing and connecting parts and electrical symbols Note For more information about connecting designs using off page connectors see Connecting schematic folders and schematic pages on page m9 4 DESIGN1 PAGE1 Beg OF FPAGELEFT L OFFPAGELEFT R lt Figure 51 Off page connectors in CAPSYM OLB 136 change the text s color font or rotation After you have finished editing the text s properties click OK Placing and editing off page connectors Off page connectors are used to connect signals to like named off page connectors and hierarchical ports on other schematic pages within the same schematic folder Off
18. not an edit handle and drag the text to the new location Release the mouse button to place the text Click an area where there are no parts or objects to deselect the text Placing text Tip The font size and style of any text placed in the default font setting can be globally changed using the settings in the Design Properties dialog box Changes to these design property settings will not affect any text on a design that is not set to the default font Tip If you have text in another Windows application you can copy it to the Clipboard and paste it into the text dialog box using the Ctrl C and CtriJ v shortcut keys respectively 159 Chapter 8 Adding and editing graphics and text 160 To move or copy text using the Clipboard 1 2 Select the text From the Edit menu choose Cut The text is placed on the Clipboard or From the Edit menu choose Copy A copy of the text is placed on the Clipboard From the Edit menu choose Paste The text is attached to the pointer Move the pointer to the location where you want to place the text and click the left mouse button The text is placed and displays in the selection color Click an area where there are no parts or objects to deselect the text To rotate text 1 Select the text so that it displays in the selection color with edit handles at the four corners From the Edit menu choose Rotate The text rotates 90 counterclockwise
19. other schematic folders These symbols are called hierarchical blocks The layered arrangement created by placing schematic folders inside schematic pages is called a hierarchy Any schematic page can contain hierarchical blocks or parts with attached schematic folders that refer to other schematic folders a design s structure can be many levels deep The schematic folder at the top of a hierarchy which directly or indirectly refers to all other schematic folders in the project is called the root module In the project manager the root module hasabackslashin Tip If you intend to take your design into its folder icon The root module as well as any other a digital simulator like OrCAD Express and schematic folder can contain as many schematic pages as OrCAD PSpice it is best to place only one you need schematic page in each lower level schematic folder This may reduce problems you encounter while troubleshooting your designs Simple hierarchical designs Schematic A Schematic B Schematic C Schematic D Schematic E Schematic F Figure 33 An abstract representation of a simple hierarchy A one to one correspondence between hierarchical blocks or parts with attached schematic folders and the 99 Chapter 6 Design structure B Design13 Pije x File tg Hierarchy SCHEMATIC1 HO SCHEMATICB U4 74L508 USA 74L508 H1 SCHEMATICA A U1A 74L508 U24 74L508 U34 74L50
20. part in a homogeneous package in a library the schematic folder is attached to each part in the package Once the part is placed on a schematic page you can attach different schematic folders to each part in the package 200 Primitive and nonprimitive parts A primitive part contains no hierarchy A nonprimitive part has an underlying hierarchical description such as an attached schematic folder In Capture this characteristic is defined in a property called Primitive on every part instance When a part is specified as primitive all of Capture s tools treat it as such You cannot descend into a primitive part even if it has an attached schematic folder You can change the Primitive property as often as you like during the design process For example you might create a part and attach a schematic folder whose schematic pages describe the part s gates and wiring then attach schematic folders to some of those parts to describe their transistors The following are some guidelines for using the Primitive property e Before you create a netlist for simulation specify the parts as nonprimitive so that Create Netlist can descend far enough to find the transistor level descriptions e Before you create a netlist for board layout specify the parts as primitive so that Create Netlist stops at the gate level descriptions For part instances that have their Primitive property set to Default you can set them as primitive
21. see Capture s online help Note You can create custom power ground and other symbols for hierarchical ports off page connectors title blocks and power objects by choosing the New Symbol command from the Design menu in the project manager window For information on how to use this command see Capture s online help 121 Chapter 7 Placing editing and connecting parts and electrical symbols 122 Place Power and Place Ground dialog boxes The Place Power and Place Ground dialog boxes are identical except that each displays the last power or ground symbol you placed on this page This figure shows the Place Power dialog box Place Power x Symbol VCC_AR ROW Cancel D EARTH 4 C_ARROVW _ Add Library _ Add Library _Bemove Library r j Heo Libraries Name VCC_ARR Dw Figure 45 Place Power dialog box Symbol Specifies the name of the power or ground symbol in the library If you aren t sure of the exact name of the symbol you can enter wildcard characters to constrain the list of symbols then click OK Valid wildcard characters are an asterisk to match multiple characters and a question mark to match a single character The names of all symbols in the selected libraries that match the wildcard appear in the Symbol list box Symbol list Lists the names of all symbols in the selected libraries that match the name entered in the Symbol text box If more than one library is
22. the 74LS373 latch has 3 state pins Bidirectional A bidirectional pin acts as both input and output For example pin 2 on the 74LS245 bus transceiver is a bidirectional pin The value at pin 1 an input determines the activity of pin 2 as well as others Input An input pin is one to which you apply a signal For example pins 1 and 2 on the 74LS00 NAND gate are input pins Open An open collector gate omits the collector pull up Use an open collector collector to make wired OR connections between the collectors of several gates and to connect with a single pull up resistor For example pin 1 on the 74LS01 NAND gate is an open collector gate Open emitter An open emitter gate omits the emitter pull down The proper resistance is added externally ECL logic uses an open emitter gate and is analogous to an open collector gate For example the MC10100 has an open emitter gate Output An output pin is one to which the part applies a signal For example pin 3 on the 74LS00 NAND gate is an output pin Passive A passive pin is typically connected to a passive device A passive device does not have a source of energy For example a resistor lead is a passive pin Power A power pin expects either supply voltage or ground For example on the 74LS00 NAND gate pin 14 is VCC and pin 7 is GND Caution Power pins set to visible in the library will not be global in nature when the part is placed in a design You will hav
23. used in the project manager and session log render TrueType fonts with strokes for printing and plotting and set whether to auto recover your project and how often In addition you can enable intertool communication which is the method that Capture uses to communicate with other OrCAD software such as OrCAD Layout Text Editor Define which if any VHDL keywords are highlighted and the font and tab settings used within the text editor Defining your preferences 55 Chapter 4 Setting up your project Defining colors print options You control the color in which different schematic page objects display by using the Colors Print tab in the Preferences dialog box i Grid Display Pan andZoom Select Miscellaneous Text Editor Print Print m sie v Hacia e Pin Background Vv Hierarchical Port WV Pin Name C B ork Vv Hier Port Text Vv Pin Number M J I eve E O Connection Square V L No Connect Vv isn Power Text Iv P Display Property M Off page Connector Selection E D Marker Vv B i i Cnet Test J7 ia Text IV CL Graphics Vv Part Body Vv 7 Title Block CT Grid Vv Part Body Rectangle V Title Text Iv E Hierarchical Block V Part Reference IV Ea Wire Iv a tie Block Name M a Value Cancel Help Figure 18 Colors Print tab of the Preferences dialog box To define if an object is printed or plotted 1 From the Options menu choose Preference
24. 4 Setting up your project objects than you specify here you will see rectangular placeholders for the objects as you drag them e Show Palette Select this check box to make the tool palette visible deselect it to make the tool palette invisible 3 Click OK 62 Defining your preferences Setting miscellaneous options You can specify the default fill line style and width and color for graphics objects define the font used in the project manager and session log render TrueType fonts with strokes for printing and plotting and set whether to enable auto recovery for your project and how often In addition you can enable intertool communication which is the method that Capture uses to communicate with other OrCAD software such as OrCAD Express OrCAD PSpice and OrCAD Layout Preferences x Colors Print Grid Display Pan and Zoom Select 3 Text Editor None gt Line Style and Width v Cole o m Part and Symbol Editor r Schematic Page Editor Fill Style m Text Rendering T Render TrueType fonts with strokes gt Fillitevt m Auto Recovery T Enable Auto Recovery Update ever 115 minutes Fill Style None Line Style and width F oe decal i M Automatically reference placed parts Session Log m Intertool Communication Font T Enable Intertool Communication Cancel Help Figure 22 Miscellaneous tab of the Prefere
25. 64 Before annotation 2 From the project manager s Tools menu choose Annotate UA UiB or g gt o gt a Choose the annotate tool from the toolbar TaLS04 PaLs04 The Annotate dialog box displays wie win 3 Set the options in this dialog box as necessary You can ot Sete ot ots specify whether to update the entire project or just the schematic pages selected in the project manager whether to update the part references that haven t yet Figure 65 After annotation been updated update all part references or reset part references so that they have question marks in their names These options are described in the section T4LS04 Y4Lso4 Annotate dialog box Note Parts must be set to primitive in 4 When the Annotate dialog box has the settings you order for Capture to annotate them You want click OK to begin the update can set the primitivity of parts individually or globally in the Hierarchy tab of the Design Properties dialog box Choose Design Properties from the Options menu to display this dialog box 236 Annotating Annotate dialog box Annotate ddi EAEI e eeen e ValueHSource Package Figure 66 Annotate dialog box Scope Specifies whether to update all the part references in the design or just those on the selected schematic pages 237 Chapter 14 Preparing to create a netlist Note This can result in duplicate reference numbers if the highest numbered part for each reference
26. Attaching a schematic folder to a part creates hierarchy in Capture When you attach a schematic folder to a part you specify the schematic folder s name or optionally specify a project containing the schematic folder If you don t Capture assumes the schematic folder is contained in the current project If you attach a schematic folder to a part you can move or copy the child schematic folder into the same library as the part after the schematic folder is created This permits the part and attached schematic folder to be reused in other projects If you specify an attached schematic folder but the schematic folder has not yet been created Capture creates the schematic folder when you descend the hierarchy on the part To descend the hierarchy you must define the part instance as nonprimitive To attach a schematic folder to a part 1 From the project manager s Design menu choose New Part with the library selected The New Part dialog box appears or From the part editor s Options menu choose Package Properties The Edit Part Properties dialog box appears 2 Click the Attach Implementation button The Attach Implementation dialog box appears 3 Enter the name of the child schematic folder If the child schematic folder is not in the current project use the Browse button to locate the project library design VHDL or EDIF file where the schematic folder is located 4 Click OK twice Or 1 Select a part instance
27. Check is helpful in preparing your project for use with other tools For example you can use the Design Rules Check tool to catch problems such as bus contention or shorted power pins before you generate a netlist to be used by simulation or synthesis tools The Design Rules Check reports two categories of electrical rules violations e Errors that should be fixed e Warnings of situations that may or may not be acceptable in your project You can control whether electrical rules violations are reported as errors or warnings in the ERC Matrix tab of the Design Rules Check dialog box Errors are always marked with DRC markers on the schematic page Warnings are also marked with DRC markers if you select the Create DRC markers for warnings option in the Design Rules Check dialog box In the report generated by Design Rules Check however the problems are categorized as WARNING or ERROR so that you can immediately identify the more critical problems Once the Design Rules Check begins it first removes existing DRC markers from the schematic pages being processed This means that each time you run this process the error markers on your schematic pages reflect the current state of your project You can also use the Design Rules Check tool to remove DRC markers from schematic pages but not do any further checking Just select the Delete existing DRC markers option on the Design Rules Check dialog box To check for design rules violatio
28. Power command on the Place menu For more information see Placing power and ground symbols on page 7 120 Ground mu zZ il Place ground symbols Equivalent to the Ground command on the Place menu For more information see Placing power and ground symbols on page 7 120 21 Chapter 2 The Capture work environment 22 Table2 Tools on the schematic page editor tool palette continued E Hierarchical Block Place hierarchical blocks Equivalent to the Hierarchical Block command on the Place menu For more information see Placing hierarchical blocks on page 7 126 B Hierarchical Port Place hierarchical ports on schematic pages Equivalent to the Hierarchical Port command on the Place menu For more information see Placing hierarchical ports on page 7 131 E Hierarchical Pin Place hierarchical pins in hierarchical blocks Equivalent to the Hierarchical Pin command on the Place menu For more information see Placing hierarchical pins on page 7 133 E Off Page Connector Place off page connectors Equivalent to the Off Page Connector command on the Place menu For more information see Placing off page connectors on page 7 136 Es No Connect Place no connect symbols on pins Equivalent to the No Connect command on the Place menu See Placing and editing no connect symbols on page 7 124 ra Line Draw lines Equivalent to the Line comm
29. SelectObject SetFont SetLineStyle ShowSpreadsheet UnSelectObject ViewPalette ZoomAll ZoomOut Cut Drag FindBookMarks FindNets FindText GoToBookMark Group Move PlaceBlock PlaceBookMarkWithDialog PlaceEllipse PlaceJunction PlaceNetAliasWithDialog PlaceNoConnect PlacePart PlacePin PlacePolyline PlacePower PlaceText PlaceTitleBlockWithDialog RemoveProperty SelectAll SetColor SetFontEx SetLineWidth Ungroup ViewGrid ViewStatusBar ZoomArea ZoomScale Delete Duplicate FindDRCMarks FindOffPageConnectors GetProperty GoToGridReference MirrorHorizontal Paste PlaceBlockWithDialog PlaceBus PlaceGround PlaceLine PlaceNextPolygonPoint PlaceOffPage PlacePartWithDialog PlacePinWithDialog PlacePort PlacePowerWithDialog PlaceTextWithDialog PlaceWire ReplacePart SelectBlock SetFillStyle SetHatchStyle SetProperty UnSelectAll ViewGridReference ViewToolbar Zoom In ZoomSelection Assigning a shortcut key to a macro To assign a shortcut key to a macro enter an alphanumeric character such as K in the Keyboard Assignment text box of the Configure Macro dialog box then save the macro To enter a combination of keyboard keys and alphanumeric characters add a plus sign either with or without spaces between the items for example ALT 2 or ALT 2 Shortcut keys are not case sensitive you can specify ALT 2 or ALT 2 To assist you in assigning shortcut keys to your macros
30. a back annotation file detailing packaging changes that are needed because of routing or manufacturing constraints Use Back Annotate to incorporate this information into your Capture project Use Bill of Materials to create a list of the parts After you do this you may need to make additional changes to your project then repeat some or all phases of the design process In addition you may want to analyze your project using intertool communication to communicate interactively with Layout for cross probing with Express Simulate to view signals in Capture as their states change during simulation or PSpice to view wave forms Tools overview After you finish placing and connecting parts in the schematic page editor use the project manager s Tools menu commands to help you complete the design process Table5 Capture tools overview Tools overview Command Overview Described in Annotate Packages parts by resolving part references and pin Chapter 14 numbers or removes packaging information by resetting Preparing to part references to their unassigned values create a netlist Back Annotate Swaps pins or gates or changes packaging based on a Chapter 14 swap file created by you or your board layout program Preparing to create a netlist Update Adds properties or changes the values of properties Chapter 14 Properties based on an update file you create Preparing to create a netlist Design Rules Reports and flags
31. affects each schematic page that refers to that part instance For flat and simple hierarchical designs this is straightforward each part instance has a unique reference designator and corresponding set of associated properties that apply each time the part instance is referenced In a complex hierarchy a part instance that is referenced more than once in the design will only have one reference designator and set of properties assigned to it regardless of the number of times it is referenced This presents a problem when you need to create a netlist for use with Layout or some other board layout tool However Capture automatically uniquely annotates each occurrence of a part instance Hence part occurrence refers to a particular instantiation of a part instance in the netlist Project manager pop up menus There are a number of pop up menus available in the project manager window Pop up menus are available by clicking the right mouse button Using the commands on these pop up menus you can open a file or schematic page or edit and view the properties of the currently selected item The schematic page editor The schematic page editor The schematic page editor is used to display and edit schematic pages You can place parts wires buses and draw graphics The schematic page editor has a tool palette that you can use to draw and place everything you need to create a schematic page You can print from within the schematic page e
32. allow gate swapping pin swapping changing pins and changing part references If the external tool creates a back annotation file edit the file to match the format described in Swap file format in this section Back Annotate only updates occurrence property values When should you use Back Annotate After you ve completed your schematic design or while you are routing a printed circuit board you might discover that you can reduce via count track length or routing complexity by exchanging two gates of one part You would use the PCB layout tool to rewire the board to exchange or swap the connections of U1A and U1B To ensure that your project reflects the rewired board you create a swap file using the PCB layout tool and then run Capture s Back Annotate When you look at the schematic page you will see that U1A is where U1B was before and vice versa To back annotate 1 Generally a swap or back annotation file is created by another application such as OrCAD Layout Alternatively you can create a back annotation file using a text editor following the format described in Swap file format later in this section 2 To process only part of your project select the pages to process in the project manager 3 From the project manager s Tools menu choose Back Annotate or Choose the Back Annotate tool from the toolbar The Back Annotate dialog box appears 4 Set the options in this dialog box as necessary You can spec
33. and editing graphics and text 156 Rotating an object You can rotate objects by 90 increments Some objects such as bitmaps cannot be rotated If the Rotate command appears dimmed on the Edit menu the object cannot be rotated To rotate an object 1 Select the object 2 From the Edit menu choose Rotate The selection rotates 90 counterclockwise Moving an object 1 Move the mouse anywhere over the object except over resize handles 2 Press the left mouse button without releasing it and drag the object until it is where you want it 3 Release the mouse button Cutting an object Select the object From the Edit menu choose Cut The object is removed from the schematic page and placed on the Clipboard Copying an object Copying an object There are two ways to copy an object Tip After you copy an object using the 1 second method you can use the Repeat command from the Edit menu to place multiple copies of the object using the same spacing This is a quick way to create an array of aligned objects Select the object From the Edit menu choose Copy The object remains on the schematic page and a copy of it is placed on the Clipboard It can be pasted in Capture or in other Windows programs or Position the pointer on the object Press the left mouse button hold down the key and drag a copy of the object to the new location Pasting an object To use the Paste command an object must alrea
34. and new schematic pages in existing projects Design Template Eg Hierarchy SDT Compatibility Fonts Title Block Page Size Horizontal Vertical Count E Count 4 Alphabetic Ascending C Alphabetic Ascending C Numeric Descending Numeric Descending Width fo 1 inches Width 0 1 inches m Border Visible _ r Grid Reference Visible M Displayed IV Printed M Displayed MV Printed r Title Block Visible M Displayed IMV Printed IV ANSI grid references Cancel Help Figure 28 Grid Reference tab of the Design Template dialog box To define the grid reference 1 From the Options menu choose Design Template then choose the Grid Reference tab 2 Specify the number of border grid references whether they are alphabetic or numeric whether the grid references increment Ascending or decrement Descending across the schematic page and how wide the grid reference cells are 3 For the border title block and grid reference select Displayed to have the item display on the screen or Printed to have the item appear on schematic pages Setting up your project template you print Select ANSI grid references to display the grid references in accordance with ANSI standards see the glossary entry ANSI 4 Click OK 75 Chapter 4 Setting up your project Note You can change the hierarchy option for existing projects using the Hierarchy tab in the Design Properties dialo
35. another schematic page See also hierarchical block hierarchical port A symbol placed outside a hierarchical block that represents a signal connected to a like named hierarchical pin Hierarchical ports can also connect to like named hierarchical ports See also hierarchical block hierarchical pin A package with multiple parts that are graphically identical See also heterogeneous package Acronym for Hewlett Packard Graphics Language which is a plotter protocol 315 Glossary 316 IEEE inherent property instance instance property intertool communication ITC junction library location macro mirror named net net Acronym for Institute of Electrical and Electronics Engineers One of the set of properties required for a given object Unlike user defined properties inherent properties cannot be removed A part or symbol placed on a schematic page See also instance property occurrence A property that is attached to an instance as opposed to a property that is attached to an occurrence or added to a partin a library Instance properties can be overridden by occurrence properties which are not reflected on the instance See also instance occurrence A capability that allows OrCAD EDA tools to share information for display and transfer See also cross probing A junction shown as a small dot is placed at the connection point where two perpendicular wires or buses cross to give visual con
36. aoaaa a 280 xiii Figures Xiv Tables Table 1 Table 2 Table 3 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Tools on the Capture toolbar 2 2 20 ee ee 17 Tools on the schematic page editor tool palette 21 Tools on the part editor tool palette o naoa aaa a 24 Capture s macro subroutines 24s aces ba a 176 Valid shortcut keys 244 244 4046 a 178 Pin sh p s a seasta a a a anede AO a e a ERS o a Bea EE RS 214 PUL POS e ss neona eaa OY Re ERE a e e Ee ORS CD a 215 Capture tools overview ooo a 233 Updating instances or occurrences cs ba ek Ee a 234 Netlist format file types aoaaa Oe eRe ORM ae ee 262 Layout part properties aooaa a 285 Layout net properties aoao a 288 Layout pin properties aoaaa a 290 Cross probing from Capture to Layout aoaaa aa 297 Cross probing from Layout to Capture 224 2545 022 a 299 Tables xvi Before you begin OrCAD offers a total solution for your core design tasks schematic and VHDL based design entry FPGA and CPLD design synthesis digital analog and mixed signal simulation and printed circuit board layout What s more OrCAD s products are a suite of applications built around an engineer s design flow not just a collection of independently developed point tools OrCAD Capture is just one element in OrCAD s total solution design flow Many of today s e
37. appears In the Name text box type in a name for the hierarchical pin This name which is also the net name is used to determine which like named hierarchical ports the pin connects to From the drop down list box under Type select a pin type for the hierarchical pin In the Width group box select either Scalar or Bus Choose the User Properties to display a dialog box where you can add or change property names and their associated values When you ve finished editing the hierarchical pin s properties click OK Click OK to close the Place Hierarchical Pin dialog box Position the hierarchical pin on an edge of the hierarchical block and click the left mouse button to place the pin Placing and editing hierarchical ports and hierarchical pins Place Hierarchical Pin dialog box Place Hiearchical Pin Nane With Scalar Cancel Type User Properties Help C Bus Passive bi Figure 50 Place Hierarchical Pin dialog box Name Specifies the hierarchical pin s name Type Specifies the type of pin Width Specifies whether the pin is Scalar or Bus User Properties Displays a dialog box that you can use to edit the pin s property names and their respective property values Editing hierarchical ports and hierarchical pins You can edit a hierarchical port or hierarchical pin after it Tip If you move the text of a hierarchical is placed by selecting it and choosing Properties from the port
38. be incremented by the value in the Increment text box In the Starting Number text box enter the number of the first pin Subsequent pin numbers will be incremented by the value in the Increment text box if there is no value in the Increment text box the pin names are incremented by 1 If you leave the Starting Number text box blank the pins are not numbered In the Number of Pins text box specify how many pins you want to place In the Increment text box specify the number by which you want to increment the pin name if it ends in a digit and pin number for each pin in the array If there is no value in the Increment text box the pin names are incremented by 1 In the Pin Spacing text box specify the number of grid units you would like between each pin If necessary change the default settings for Shape and Type to fit your requirements then click OK Using the pointer drag the pin array to the desired location along the part body border then click the left mouse button to place the array The array is positioned so that the first pin in the array is at the pointer 9 When you are done placing arrays choose End Mode from the right mouse button pop up menu or press Esc You can place multiple copies of the array by clicking the left mouse button each time you want to place an array Each time you place the array the pin names and pin numbers are incremented based on the number of the last pin placed If th
39. body 203 part body border 203 329 Index part reference 207 PCB footprint 206 pins placing 210 plotting 89 printing 89 properties 31 user defined properties 31 passive pin type 214 Paste command 157 toolbar 17 PCB footprint property 119 261 291 physical mode 9 Picture command 158 Pin Array command 216 tool palette button 24 Pin command 210 tool palette button 24 pin properties transferring to Layout 289 pins connecting to wires 141 ground 220 invisible displaying 221 name 212 number 212 placing multiple 216 placing on a part 210 power 220 properties 31 shape 213 shared 201 220 types 214 user defined properties 31 visibility 212 220 width 212 pin to pin spacing defining for new designs 72 Place Ground Symbol dialog box 122 Place Hierarchical Block dialog box 128 Place Hierarchical Pin dialog box 135 Place Hierarchical Port dialog box 132 Place Off Page Connector dialog box 138 Place Part dialog box 115 Place Pin Array dialog box 218 Place Pin dialog box 212 Place Power Symbol dialog box 122 placing bitmaps 158 bus entries 144 ground symbols 124 hierarchical blocks 130 hierarchical pins 133 330 off page connectors 139 power symbols 124 text 159 playing macros 170 plotting 87 bitmaps 93 drivers 87 93 HPGL emulation 93 parts or packages 89 pen colors 93 previewing 91 rendering TrueType fonts as strokes 63
40. by extending nets between them using off page connectors hierarchical ports and hierarchical pins in hierarchical blocks Off page connectors carry nets between schematic pages within a single schematic folder Hierarchical blocks hierarchical ports and hierarchical pins carry nets between schematic folders which need not be in the same design The rest of this section contains an example of how to use off page connectors hierarchical ports hierarchical pins and hierarchical blocks to create a simple hierarchy Figure 36 shows two schematic folders Sch A and Sch B each with two schematic pages The schematic folder marked with a backslash is called the root module To establish a hierarchy with schematic folder A positioned above schematic folder B Figure 37 illustrates the schematics with hierarchy established 1 Place a hierarchical block on schematic page 1 2 In the Place Hierarchical Block dialog box set the following options to attach schematic folder B e Type ina reference e Select Schematic View for the Implementation Type e Type in Sch B as the Implementation Name Note For information about placing hierarchical blocks hierarchical ports hierarchical pins and off page connectors see Chapter 7 Placing editing and connecting parts and electrical symbols Sch A Sch Pg 1 Sch Pg 2 Sch B Sch Pg 3 Sch Pg 4 Figure 36 Schematics before hierarchy Sch A Sc
41. can also create a macro in ASCII text using valid Visual Basic syntax When you record a macro Capture assigns it a temporary name and treats it as a temporary macro Temporary macros can be run during the current Capture session but they are not saved for use in subsequent Capture sessions You can make a temporary macro permanent by saving it using the Configure Macro dialog box choose Configure from the Macro menu For samples of valid Visual Basic syntax see Capture s online help Chapter9 Using macros 168 In general you can record a macro command for each menu command available in the schematic page editor However because the macro commands are limited to the schematic page editor window the following commands that result in moving to a new window are unavailable e Ascend e Descend e Edit Part in Place When recording a macro the Undo command is not recorded as a part of the macro For this reason you cannot create an undo macro using the Undo command Recording a macro A location recorded within a macro is relative to the previous action not relative to where you began recording the macro For example you can record a macro to place a wire move the cursor down one grid space then place another wire When you run the macro at a different location on your schematic page the macro places a wire moves down one grid space then places another wire below the original wire To record a macro 1 4
42. configure PSpice to automatically show waveform results when the simulation has finished or to monitor waveforms as the simulation progresses Using markers You can place markers on your schematic page to indicate the points for which you want to see waveforms displayed in PSpice Viewing results For more information refer to the Analyzing waveforms chapter of the OrCA D PSpice User s Guide of the PSpice online help These procedures are outlined in the Analyzing waveforms chapter in the OrCA D PSpice User s Guide For more information on markers refer to the OrCA D PSpice User s Guide 307 Chapter 19 Using Capture with OrCAD PSpice 308 Configuring the display of simulation results To configure what results PSpice displays select the Probe Window tab when editing the simulation profile You are given the following choices Display Probe Windows When the Profile is Opened This causes the simulation results to be automatically added and Probe windows displayed whenever the simulation is opened in PSpice Display Probe Window Specifies the following options During Simulation This opens a Probe window as soon as the simulation sweep begins so you can watch the waveforms develop as the simulation progresses After Simulation has Completed This opens a Probe window upon completion of the simulation when all of the data is available Show Frame Specifies the following options All Marker
43. contents are visible listed below the folder It appears as a schematic folder with a slash on it in a design file or as a page in a VHDL file Each project you open has its own project manager window You can move or copy folders or files between projects by dragging them from one project manager window to another as well as to and from Windows Explorer To copy rather than move items press and hold the key while you drag them If you close a project manager window you close the project In the project manager s File tab double clicking on a schematic folder expands it and displays icons for each schematic page within the schematic folder Then if you double click on a schematic page icon the schematic page opens in a schematic page editor Or if the page is already open its window becomes active A design can consist of a single schematic page within a single schematic folder or a number of schematic pages within a number of schematic folders A schematic folder contains schematic pages in a relationship similar to the relationship between a directory and the files it contains Files are contained in a directory schematic pages are contained in a schematic folder The project manager Tip The root module for a design has a backslash in its folder icon as shown in Figure 2 on page 2 6 Note If a schematic page is open you cannot drag its icon to a different location Chapter 2 The Capture work environment N
44. electrical significance in a PSpice simulation but must be connected to a PCB layout design Unmodeled pins have a FLOAT property with a value of Unmodeled If unmodeled pins are connected to any other pins a netlist is generated with a large resistor connected from the set of pins to ground Unmodeled pins must not be referenced in a part s PSpiceTemplate property Place an instance of the PM741 from OPAMP OLB library to see is two unmodeled pins OS1 and O82 Double click the OS1 or OS2 pin to bring up the property editor Capture shows the FLOAT property on the two pins as Unmodeled Only the OUT V and V pins are referenced in the part s PSpice property To view a simulation model for a part 1 Inthe schematic page editor click the part to select it 2 From the Edit menu choose PSpice Model to display the Model Editor and view an instance of the simulation model definition 3 Exit the Model Editor without saving to avoid creating a copy of the model Glossary alias ANSI architecture ascend ASCII AutoECO See net alias part alias Acronym for American National Standards Institute an organization formed by industry and the U S government to develop trade and communication standards Internationally ANSI is the American representative to the ISO International Standards Organization See also ASCII VHDL term that describes the behavior of a VHDL design un
45. existing schematic pages using the Grid Reference tab in the Schematic Page Properties dialog box choose Schematic Page Properties from the schematic page editor s Options menu See Defining the grid reference on page 4 74 for more information Viewing miscellaneous schematic page properties The Miscellaneous tab in the Schematic Page Properties dialog box displays the creation time and the last modification time of the schematic page as well as the page number Schematic Page Properties xi Creation Time Thu Nov 21 12 49 15 1996 Modification Time Thu Nov 21 12 49 15 1996 Page Size Grid Reference A Page Number 1 Cancel Help Figure 32 Miscellaneous tab of the Schematic Page Properties dialog box Changing properties of existing schematic pages To view miscellaneous schematic page properties 1 From the schematic page editor s Options menu choose Schematic Page Properties then choose the Miscellaneous tab 2 When you are done viewing the information click OK 85 Chapter 4 Setting up your project 86 Printing and plotting To send output to a printer a plotter or an encapsulated PostScript file use the standard Windows Print Setup Print Preview and Print dialog boxes Printing commands can be chosen from the File menu in the project manager the schematic page editor or the part editor You can print schematic pages parts or packages To configure a printer or plot
46. for mapping netlists that use part field information For information on creating these types of netlists and the combined property strings they require see the Capture online help Tip To change the part field to property mapping for existing projects use the SDT Compatibility tab in the Design Properties dialog box from the project manager s Options menu choose Design Properties 78 Setting up compatibility with OrCAD s Schematic Design Tools You can specify which properties Capture stores in the eight SDT part fields when saving a project in SDT format In the dialog box shown below the part fields listed on the left are SDT s part fields The text boxes on the right are used to specify which of Capture s properties map to the part fields in SDT The options in the SDT Compatibility tab of the Design Template dialog box only affect new projects Design Template x Fonts Title Block Page Size Grid Reference Hierarchy m Property to Part Field Mapping Patt Fidd 1ST PART FIELD Part Field 2 2ND PART FIELD Part Field 3 3RD PART FIELD Part Field 4 14TH PART FIELD Part Field 5 5TH PART FIELD Part Field 6TH PART FIELD Part Field Z 7TH PART FIELD Patt Field 8 PCB Footprint Cancel Help Figure 30 SDT Compatibility tab of the Design Template dialog box To set up compatibility with OrCAD s Schematic Design Tools 1 From the Options menu choose Design
47. hierarchical blocks e Nets including constituent nets within buses e Pins e Title block A property consists of a property name for example Part Value or Part Reference and an associated value for example TIP31C or Q2 For example part properties define the name value reference designator and other information for each part in your design In Capture you can edit property values create or delete properties or cause the properties to be displayed on the schematic page To edit properties you use one of two editors e The browse spreadsheet editor as described on page 2 32 e The property editor as described on page 2 35 Since Capture allows for complex hierarchical design structures as discussed in Chapter 6 Design structure each of the objects listed above can exist as instances or occurrences In complex hierarchical designs a schematic page can be referenced or reused at several points in the design An instance refers to the object that is placed on the defining schematic An occurrence represents the use or reuse of that instance within a design When you edit properties for an object you can edit the instance or you can edit a particular occurrence of that instance 31 Chapter 2 The Capture work environment 10 4 aR sapirann 1505673 oft ORT ca new copy Heme eee He Figure 13 Browse spreadsheet editor 32 The Browse spreadsheet editor You displa
48. in Layout or Capture and have the corresponding object highlight in the other application For example you can select a net on a schematic page in Capture and see the corresponding track highlighted in Layout Enabling intertool communication between Capture and Layout To use cross probing you must have the same design open in Layout as in Capture In Capture you must enable intertool communication ITC It is not necessary to enable ITC in Layout because cross probing is always active in Layout To enable ITC in Capture 1 From Capture s Options menu choose Preferences The Preferences dialog box appears 2 Choose the Miscellaneous tab select Enable intertool communication then click OK Cross probing between Capture and Layout Note It is necessary to run Capture and Layout simultaneously to use cross probing Ittakesa minimum of 64 MB of RAM to run both Capture and Layout Tip You use Layout s Half Screen command from the Window menu to tile the Capture and Layout windows so that you can view both on your screen Tip Only enable ITC when you want to crossprobe If you leave ITC enabled while editing your design Capture s performance is reduced 295 Chapter 18 Using Capture with OrCAD Layout Note When you use block selection in Capture cross probing only highlights the last item selected in the block There is no way to predict the order in which items are selected in a block selection 296 Cr
49. in the project manager to bring it up in the text editor You can open the DRC report file by using a text editor or word processor This file has a default extension of DRC The session log also contains the same information You can use the Browse command on the project manager s Edit menu to display a list of all DRC markers in the project This list gives information about each error and warning Each DRC marker on a schematic page displays this same information Once this list displays in the browse window you can double click on an item to go directly to it on its schematic page Once you are viewing the marker on the schematic page you can display the marker s text by double clicking on it You can also use the schematic page editor s Find command to find specific DRC markers To do this you must enter the text associated with the marker ee Rules Check dialog box Design Rules Check ta The Design Rules Check tab contains options for things to include in the report generated by Design Rules Check You can specify if you want to create DRC markers on the selected schematic pages for both errors and warnings create DRC markers just for errors or delete existing DRC markers instead of adding new ones Note that if you select the option to delete existing DRC markers the options that customize the DRC report become dimmed and aren t available for selection Design Rules Check x j ERC Matrix r Scope
50. made up of pixels which are tiny dots on a computer screen Each pixel in a bitmap is represented by a number between 0 and 255 inclusive with 0 being the darkest no luminance and 255 being the lightest full luminance Bitmaps have a BMP extension and can be placed on a schematic page using the Picture command on the schematic page editor s Place menu Just as you can place a bookmark in a book to mark a specific page you can place a bookmark on a schematic page to mark a location you would like to return to To place a bookmark use the Bookmark command on the Place menu in the schematic page editor To go toa bookmark when in the schematic page editor use the Go To command on the View menu To go to a bookmark when in the project manager use the Browse command on the Edit menu to display bookmarks in the browse window then choose a bookmark To edit a bookmark double click on it This window displays the results of queries done using the Browse command on the Edit menu You can double click on an object in the browse window to go to that item on its schematic page A group of scalar signals wires that is never connected to a net A bus name defines the bus signals and connects those signals to the corresponding nets For example the bus name A 0 3 defines a four signal bus and connects the four signals A 0 A 1 A 2 and A 3 with nets AO Al A2 and A3 See also bus pin bus entry bus entry bus pin CAGE co
51. manager or Schematic Page Properties when you are in the schematic page editor Defining your preferences The options that you define in the tabs of the Preferences dialog box affect how Capture works with your projects Choose Preferences from the Options menu to access the Preferences dialog box Colors Print Set up colors for objects such as off page connectors hierarchical blocks and ports text title blocks and so on and specify which objects will be printed or plotted You can also change the background color and the color of the grid Grid Display Select dots or lines for your grid and whether to display or print your grid You can select whether to have your pointer snap to grid as you place objects You can set these options independently for the schematic page editor and the part editor Pan and Zoom Define how you want autoscrolling to work and what the zoom factor should be You can set these options independently for the schematic page editor and the part editor Select Define whether you want to select objects enclosed by a selection rectangle or objects inside and intersecting a selection rectangle the maximum number of objects to display at high resolution while dragging and whether to show the tool palette You can set these options independently for the schematic page editor and the part editor Miscellaneous Define the default fill line style and width and color for graphic objects define the font
52. need to know to find your way around in Capture It shows the windows you ll see in Capture the project manager the browse window the schematic page editor the part editor and the session log It also introduces you to the toolbar and tool palettes and general Capture concepts such as selecting and editing objects and undoing and repeating actions Chapter 3 Starting a project describes the different types of designs that Capture supports flat simple hierarchical and complex hierarchical It introduces the electrical objects used to create these types of designs and provides an example of how to create a simple hierarchy Chapter 4 Setting up your project shows how to open a design and navigate the schematics and schematic pages in a design or a portion of a design such as an individual schematic page Getting started This chapter describes how to start OrCAD Capture Starting Capture The OrCAD Release 9 installation process puts Capture in the PROGRAM FILES ORCAD CAPTURE folder and adds OrCAD Release 9 to the Programs menu available from the Start button To start Capture 1 From the Start menu choose Programs The Programs menu displays 2 From the OrCAD Release 9 menu item choose Capture Chapter 1 Getting started The Capture session frame Once you start Capture you see the Capture session frame You do all your schematic design and processing within this window OrCAD Capt
53. netlist Note You should ALWAYS run Design Rules Check before you create a netlist Note When Design Rules Check checks for unconnected nets it looks for nets with less than two connection points Thus a net can still have unconnected endpoints dangling endpoints that aren t reported by Design Rules Check 244 Import Properties and Export Properties on the Tools menu or use Capture CIS to make changes Checking for design rules violations The Design Rules Check tool scans schematic designs and checks for conformance to basic design and electrical rules The results of this check are marked on the schematic pages with DRC markers and are also listed in a report This makes it easy to locate and fix design or electrical errors You can search for DRC markers using the Browse command on the project manager s Edit menu and then double click on any item in the resulting list to go immediately to the location of the marker on your schematic page Once you are viewing the marker on the schematic page you can display the marker s text by double clicking on it You can specify the conditions that cause errors to be generated Optional checks performed by the Design Rules Check tool include off grid parts unconnected nets pins ports and off page connectors identical part references type mismatch parts and design elements that are not compatible with OrCAD s Schematic Design Tools SDT 386 product The Design Rules
54. objects appear larger or smaller When you zoom out the objects are smaller and you see more of the schematic page or part When you zoom in the objects are larger but you see less of the schematic page or part The amount by which the zoom scale is multiplied or divided when you choose Zoom In or Zoom Out on the schematic page editor s View menu The Zoom factor is normally 2 but you can change it using the Preferences command on the Options menu For example a zoom scale of two makes the image of the screen twice as large when you zoom in and half as large when you zoom out The relative size of the image on the screen as a percentage of the normal size For example a zoom scale of 250 means the image on the screen is two and one half times as large as normal 321 Glossary 322 Index A adding macros 173 Annotate Annotate command 238 toolbar 18 Annotate dialog box 237 238 annotation back 293 forward 294 Arc command tool palette button 23 arcs drawing 152 resizing 152 area selection 29 attached implementation 119 129 207 attached schematic folders 103 119 129 200 207 208 descending 200 208 homogeneous package 200 208 in complex hierarchical designs 101 in simple hierarchical designs 99 attaching implementations to hierarchical blocks 126 auto recovery 50 63 64 AutoECO 281 autoscrolling defining 59 Back Annotate command toolbar 18 back annotation 293 BACKANNO MAX fil
55. objects using wires and buses Si CMOSCPU DSN POWER SCH Chapter 7 Placing editing and connecting parts and electrical symbols 110 Capture libraries also include symbols used to establish connectivity between schematic pages You use off page connectors to connect signals between schematic pages within a schematic folder You use hierarchical blocks hierarchical ports and hierarchical pins to connect signals from one schematic folder to another or from an attached schematic folder See An example creating a simple hierarchy on page 6 105 for more information on working with connectivity across schematic pages Wires and buses are used to conduct signals between parts and electrical objects Nets are made up of one or more wires a bus represents multiple signals or nets Placing and editing parts Placing and editing parts Capture includes libraries with a total of over 30 000 parts Note For information about creating your that you can use on your schematic pages You can also own parts see Chapter 12 Creating and create your own parts editing parts A library part has a package view which corresponds to the actual physical object that can be placed for example ona printed circuit board The package view identifies the physical pin numbers and the number of logical objects for example parts or devices that are contained within the package EF FULLADD DSN 74LS32_0 Figure 40 Part editor in package view
56. of the schematic page For example a 74LS04 part placed in the HALFADD schematic is reused As a result it requires two distinct annotations one for the A side of the hierarchy and another for the B side of the hierarchy Both of these annotations are occurrence properties for a single part instance placed on a schematic page The design cache When you place the first instance of a part in a design a copy of the part is created in the design cache The design cache stores one copy of every part used in the design Normally all instances of the part refer to this copy in the design cache An original cache part also retains a link to the library part on which it is based so you can update all of the parts in the design cache to synchronize them with the parts in the libraries This action is useful for updating your design if you have made changes to the library the parts came from Once you edit a part instance the link to the original library no longer exists This means that e The part instance is not affected by the Update Cache command e To restore its link with the original library choose the Replace Cache command from the project manager s Design menu By updating all instances of a part you create a new part that replaces the old part in the design cache and break the link with the original library If you update only the currently selected part instance you create a new part in the design cache for this
57. or nonprimitive on a project wide basis using the Design Properties command on the Options menu Choose the Hierarchy tab select either Primitive or Nonprimitive in the Parts group box then click OK This is useful when you are describing and simulating your design at varying levels of abstraction as when using top down design Creating and editing parts 12 In Capture you can create parts and add them to a new or existing library You can also edit existing parts in a library or on a schematic page All of these processes are described in this chapter To create or edit a part you use the part editor There are many different ways to access the part editor e To create anew part open anew or existing library in the project manager with the library selected From the Design menu choose the New Part command e To edit an existing part open a library in the project manager then double click on the part e To edit a part instance on a schematic page select it From the Edit menu choose Part Chapter 12 Creating and editing parts 202 Parts and packages homogeneous or heterogeneous A part may be divided into several logical parts all contained in a single physical package You can distribute the individual logical parts throughout your project while maintaining the part s identity as a single physical part Each logical part has graphics pins and properties that describe it If you define a package in which a
58. part in a project You use Annotate after you ve placed all parts and before you use other Capture tools You can annotate incrementally so that previously assigned part references are not changed or you can annotate unconditionally changing all the parts across all the schematic pages processed Using the Annotate tool intersheet references can be added to off page connectors and hierarchical ports Intersheet references indicate the source and destination of schematic page and schematic symbols in your design Caution After you have created a netlist and read it into Layout if you make further changes to your Capture design only use the Incremental reference update option in the Annotate dialog box when you annotate Do not use the Unconditional reference update option 14 Note Annotate also assigns individual parts to a multiple part package thereby assigning unique pin numbers to each part in a multiple part package This process is sometimes called packaging For more information on controlling packaging in multiple part packages see Capture s online help Chapter 14 Preparing to create a netlist ipa UA Parts are updated in the order in which they appear on a a 3a pi 2 Schematic page going from left to right and top to bottom as shown in Figure 64 and Figure 65 T4LS04 FALgod UPA UPA To annotate i a i 1 Inthe project manager select the schematic pages on 74L504 74Ls04 which to annotate Figure
59. prefix is not represented in the schematic pages you have selected If you suspect you have duplicate reference numbers run Design Rules Check before you attempt to create a netlist Tip The properties that contain the page number Page Number and Page Count are part of the title block If you create a custom title block you can give it these two properties so that they are updated when you run Annotate 238 Action Specifies the action to be taken on reference designators or intersheet references in the selected schematic pages Designs can be annotated unconditionally affecting currently annotated parts annotated incrementally affecting only unannotated parts or have all annotations reset Intersheet references can either be added to or removed Only one action can be specified at a time Mode Specifies whether to update the instance properties of the parts or nets or occurrence properties of the parts or nets The preferred mode is set automatically by Capture and depends on the type of project you are using Physical Packaging Specifies the properties that must match for Capture to group parts in a single package See Capture s online help for information on how the Annotate tool packages individual parts into multiple part packages as well as information about combined property strings Reset reference numbers to begin at 1 in each schematic If this option is selected Capture numbers part references beginning w
60. scaling output 92 schematic pages 88 polygons drawing 154 resizing 154 Polyline command tool palette button 22 polylines drawing 154 resizing 154 pop up menus 10 power pins 220 type 214 visibility 82 119 symbols 124 Power command 120 tool palette button 21 Preferences command 53 dialog box Colors tab 28 Colors Print tab 56 Grid Display tab 58 Miscellaneous tab 63 Pan and Zoom tab 59 Select tab 29 61 Text Editor tab 66 dialog box Pan and Zoom tab 180 previewing print output 91 Previous Part command 225 primitive parts 112 200 Primitive property 118 200 208 Default option 200 208 on hierarchical blocks 128 Print command 88 toolbar 17 print options 56 Print Preview command 91 Print Setup command 87 printing 87 disabling printing of individual objects 56 drivers 87 parts or packages 89 previewing 91 rendering TrueType fonts as strokes 63 scaling output 92 schematic pages 88 session log 90 setting up 87 text editor 90 Programmer s editor 13 project manager File tab 9 folders Design Cache folder 6 design folder 6 Design Resources folder 6 Library folder 6 Outputs folder 6 font 63 Hierarchy tab 9 pop up menus 10 schematic folders 6 schematic pages 6 toolbar 18 projects adding files 49 closing 51 deleting files 49 folders Design Resources 45 46 275 Library 275 schematics 43 opening 47 saving 50 properties copying 33 creating 3
61. signals To enter a pin name with a bar over it indicating negation type a backslash character after each letter you want a bar over For example type R E S E T to define the name RESET Number The pin s number Width Ifa pin connects to a wire select Scalar If a pin connects to a bus select Bus Pin Visible If this option is selected the pin is visible when the part is placed on the schematic page Otherwise the pin is not visible on the schematic page This option is only available for power pins Shape The shape of the pin as shown in Table 3 Creating a new part 213 Chapter 12 Creating and editing parts 214 Table 2 Table3 Pin shapes Shape Description Dot b An inversion bubble Clock m A clock symbol Dot Clock p A clock symbol with an inversion bubble Zero ii A normal pin with a lead zero grid units in length Short A normal pin with a lead one grid unit in length Line m A normal pin with a lead three grid units in length Type The type of the pin as described in Table 4 User Properties Displays the User Properties dialog box You can use this dialog box to define additional properties for the pin Creating a new part Table 3 Table4 Pin types Pin type Description 3 state A 3 state pin has three possible states low high and high impedance In its high impedance state a 3 state pin looks like an open circuit For example
62. size defining for new designs 72 schematic pages 6 creation date 84 defining grid references 84 defining page size 83 defining units 83 modification date 84 plotting 88 printing 88 Schematics 273 screen fonts 166 scrolling defining auto scroll percent 59 60 scroll percent 59 SDT compatibility with Capture 78 80 Select All command 29 selecting all objects 29 area 29 deselecting 28 multiple objects 28 one object 28 selection border intersect or enclosed 61 selection options defining 61 session frame 4 session log 14 font 63 printing 90 shared pins 201 220 shortcut key assignments for macros 177 simple hierarchy 99 example 105 simulation creating a netlist for 260 single view 9 snap to grid 332 toolbar 18 snap to grid defining 58 spreadsheet editor 231 squares drawing 150 resizing 150 status bar 26 visibility 27 Status Bar command 27 swapping gates or pins 232 symbol 12 symbol editor 12 F7 tab spacing defining for text editor 66 temporary macros 167 text bounding box 161 character formatting 165 deleting 161 editing 161 exporting 165 finding 163 importing 164 moving 159 placing 159 rendering TrueType fonts as strokes 63 replacing 164 rotating 160 Text command 159 165 tool palette button 23 text editor 13 defining preferences 66 printing 90 three state pin type 214 title block properties 31 title blocks 194 choosing 70
63. the File tab and double click the icon of a schematic folder this expands the folder and reveals the schematic pages it contains Double click on the icon of the schematic page you want to open The schematic page opens in a schematic page editor window Tip The four files that were last opened are listed at the bottom of the File menu To open one of these files select it from the File menu Figure 15 Open project design and schematic page 47 Chapter 3 Starting a project Figure 17 Open VHDL file 48 To open an existing library 1 From the File menu choose Open then choose Library The Open Library dialog box displays 2 Select a library OLB or type the name in the File name text box then choose the Open button The library opens in the project manager To open an existing VHDL file 1 From the File menu choose Open then choose VHDL File The Open VHDL File dialog box displays 2 Select a VHDL file VHD or type a name in the File name text box then choose the Open button The VHDL file opens in Capture s text editor Working with files in a project Using the project manager you can add or delete project files You can add any file to your project including libraries and VHDL files Files not in ASCII format or a Capture generated format may not appear as expecte
64. the bus then either choose Properties from the Edit menu or choose Edit Properties from the right mouse button pop up menu You can also double click the text This displays the Edit Net Alias dialog box which allows you to change the Alias Color Rotation or Font Once you have finished editing the properties click OK Placing bus entries Bus entries are used to bring a net into a bus They are optional The only distinction between a bus entry and a wire segment is that two wires that touch are connected whereas two bus entries that touch are not connected To place a bus entry 1 From the schematic page editor s Place menu choose Bus Entry The bus entry is attached to the pointer 2 From the Edit menu choose Rotate to rotate the bus entry 90 counterclockwise if the bus entry is not at the angle you need 3 Use the mouse to position one end of the bus entry on the bus then click the left mouse button to place the bus entry 4 Repeat step 3 until all of the bus entries are placed 5 Choose the selection tool or press to dismiss the bus entry tool To connect multiple nets to a bus 1 2 Place a wire to connect the first bus entry to a net Place an alias on the wire using the lowest value in the bus range For example if you re using a bus alias of A 0 3 the lowest value in the bus range is AO Select the wire then press while you drag a copy a specific distance so that it connects the next net to t
65. the part body border Click the left mouse button to place the pin You can place multiple instances of the pin by clicking the left mouse button each time you want to place an instance of the pin The pin number and name increment automatically if they end with a number When you are done placing pins choose End Mode from the right mouse button pop up menu or press Esc Creating a new part Tip To place multiple pins that are slightly different you can click the right mouse button and choose the Edit Properties command 211 Chapter 12 Creating and editing parts Note Bus pins can only be used for simulation purposes They will not netlist properly for board layout Tip You can make each part s pin names visible or invisible From the part editor s Options menu choose Part Properties When the User Properties dialog box appears set Pin Names Visible to either True or False 212 Place Pin dialog box Place Pin Eg Name D a D1 Line T Cancel Number Type fio Passive z User Properties Width Hep ki H Scalar F Pin visible C Bus Figure 61 Place Pin dialog box Name The name of the pin If a pin connects to a bus the pin should be named in the format busname range for example A 0 3 You can use two periods a colon or a dash to separate the numbers in the range Bus pins are expanded into separate pins in a netlist just as a bus is separated into separate
66. to your macro using the Keyboard Assignment text box in the Configure Macro dialog box dick Save then click Close 177 Chapter9 Using macros Table 1 Table2 Valid shortcut keys Type of key Available keys Alphabetic character A through Z inclusive Numeric character 0 through 9 inclusive Function key F1 through F24 inclusive Punctuation key e 8 4 eLO Special key Esc Ins Del PgUp PgDn Home End Arrow key 9 4 Note Do not open a Capture macro with Provided with Capture are a number of sample macros Visual Basic Visual Basic will add that you can use These files are saved in the formatting to the file if you save it ORCAD CAPTURE MACROS directory when you do a typical installation Open them with a text editor to view or edit them 178 Changing your view of a schematic page 10 There are several ways to change your view of a schematic page They include zooming to a smaller or larger view of the schematic page centering a view on a particular position and moving to a different location You can also choose whether or not to display a grid or grid references Chapter 10 Changing your view of a schematic page Note If you choose an editing function then choose a command to change the view your next mouse click implements the editing function For example if you select the circle tool and then zoom in or out your next
67. tosh after Ist swap Swap gates UIC and U2B Back annotating Note Unlike CHANGEPIN commands PINSWAP commands are order dependent within the swap file For this reason if you change the order of the PINSWAP commands or use both PINSWAP and CHANGEPIN commands on the same part you may get unexpected results Back Annotate does not check to make sure that parts are the same type before a swap is performed Therefore if you swap gates between dissimilar part types as shown in the example below odd results may occur in your project 257 Chapter 14 Preparing to create a netlist 258 Creating a netlist After you create a project you can create a netlist to exchange schematic information with other EDA tools You can choose from more than 30 industry recognized netlist formats Your choice of netlist depends on the destination application Using the Create Netlist tool Before you create a netlist be sure your project is complete has been annotated using Capture s Annotate command and is free from electrical rule violations Chapter 14 Preparing to create a netlist describes how to use Capture s tools to prepare your design before you create a netlist The table below summarizes the type of netlist you will get flat or hierarchical depending on the nature of your design and the netlist format you choose 15 For infor
68. used to place electrical connectivity objects The second group of tools are drawing tools used to create graphical objects without electrical connectivity Figure 10 Schematic page editor tool palette The tools on the schematic page editor tool palette are described in Table 2 The tool palettes Table2 Tools on the schematic page editor tool palette Tool Name Description Select x Part lo Select objects This is the normal mode Select parts from a library for placement Equivalent to the Part command on the Place menu For more information see Placing parts on page 7 113 Wire i Draw wires Press to draw non orthogonal not a multiple of 90 wires Equivalent to the Wire command on the Place menu For more information see Placing wires on page 7 141 Net Alias Place aliases on wires and buses Equivalent to the Net Alias command on the Place menu For more information see Placing buses on page 7 143 Bus e Junction Bus Entry E Draw buses Press lt gt Shift to draw non orthogonal segments Equivalent to the Bus command on the Place menu For more information see Placing buses on page 7 143 Place junctions Equivalent to the Junction command on the Place menu Draw bus entries Equivalent to the Bus Entry command on the Place menu For more information see Placing bus entries on page 7 144 Fur Power Place power symbols Equivalent to the
69. value so the first line begins with a pair of single quotes with no spaces or other characters between them The rest of the first line contains any information you want to include to make the file and the bill of materials more readable this usually consists of headers for the values in the rest of the file If the include file has combined property strings separated by spaces then the properties you specify in curly braces have to be separated with spaces also The rest of the file contains a separate line for each part Each line must begin with the property value as specified in the Include File Combined property string in the Bill of Materials dialog box enclosed in single quotes This is the match string and is compared with the search string specified in the Include File combined property string in the Bill of Materials dialog box Following the property value and on the same line is the information that you want to add to the bill of materials You can separate the part value from the additional information by any number of spaces or tab characters Capture will align the first nonblank character in each line when it creates the bill of materials The following example illustrates an include file Tip You can use an include file from u DESCRIPTIONPART ORDER CODE OrCAD s Schematic Design Tools SDT 1K Resistor 1 4 Watt 5 10000111003 386 without modifying it 4 7K Resistor 1 4 Watt 5 10000114703 22K Resistor 1 4 Watt 5
70. violations of electrical rules and other Chapter 14 Check design constraints Starts by removing existing DRC Preparing to markers create a netlist Create Netlist Creates a file that lists the logical interconnections Chapter 15 between signals and pins in one of more than thirty standard formats Creating a netlist Cross Reference Reports the schematic page and location of parts used in developing or documenting a project Chapter 16 Creating reports Bill of Materials Creates a formatted list of electrical and other parts in the project Optionally adds information based on an include file you create Chapter 16 Creating reports Export Creates a tab delimited list for manipulation ina Chapter 17 Properties spreadsheet or database program of properties and Exporting and values for each part in the project importing schematic data Import Adds properties or changes the values of properties Chapter 17 Properties based on a tab delimited list in the format created by the Exporting and Export Properties command importing schematic data 233 Chapter 13 About the processing tools 234 Updating instances and occurrences Several of Capture s tools give you the choice of updating instances or occurrences The type of property you update depends on the type of project in which you are working If you are working with an FPGA project or a PSpice project then choose to update instances with t
71. walr SET Sy Dlo gt a4 Figure 54 Part editor tool palette General rules for all drawing tools e Ifyou choose a drawing tool and press before you begin drawing an object the drawing tool changes to the selection tool e If you choose a drawing tool start drawing an object and then press Esc the unfinished object is removed and the drawing tool changes to the selection tool Drawing lines Draw ing lines You use the line tool to draw a single line The line you draw adopts the current line style If you want to draw a line with multiple contiguous segments use the polyline tool To draw a line segment 1 From the Place menu choose Line or Choose the line tool on the tool palette 2 Move the pointer to the line s beginning 3 Press and hold the left mouse button while moving the Note To place diagonal lines hold down mouse to draw the line the key while drawing a line 4 Release the left mouse button to end the line The line with snap to grid selected displays in the selection color 5 Choose the selection tool or press to dismiss the line tool To resize a line Use the selection tool to select a line Edit handles appear at either end of the line With the pointer on one of the two edit handles press the left mouse button and drag the line You can change the angle of the line in the process of resizing it 149 Chapter 8 Adding and editing graphics and text 150 Drawing rectangles an
72. when you need it To display or hide the toolbar 1 From the schematic page editor s View menu choose Toolbar or From the part editor s View menu choose Toolbar The toolbar 19 Chapter 2 The Capture work environment Note The tool palette is always docked on the right edge of the session frame the first time you open a schematic page or part in a new session of Capture The position of the tool palette is not saved a ee ey x gt lufa 4 Pee 22 Ea leu ec x y Dlo gt A For information on using the electrical tools see Chapter 7 Placin editing and connecting parts and electrical symbols For information on how to use the drawing tools see Chapter 8 Adding and editing graphics and text 20 The tool palettes Capture has two tool palettes one for the schematic page editor and one for the part editor Both tool palettes are dockable that is you can click on an area between buttons and drag a tool palette to a new location and resizable and display tooltips that identify each tool While the drawing tools on the two tool palettes are identical each tool palette has different electrical tools After you choose a tool and in the case of some tools after you respond to the tool s dialog box you press the right mouse button to display a context sensitive pop up menu The schematic page editor tool palette The first group of tools on the tool palette are electrical tools
73. 031 Same Pin ber connected to more than one net halfadd_B U2C 6 Nets X_BAR_177 and X_BAR EX6B EX6B SCH 3 50 2 90 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U3D 12 Nets X and CARRY_IN EX6B EX6B SCH 4 00 1 90 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U3D 13 Nets N5056796111_183 and N5056796111 EX6B EX6B SCH 4 00 2 10 251 Chapter 14 Preparing to create a netlist ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U3D 11 Nets N00035_178 and N00035 EX6B EX6B SCH 5 20 2 00 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U4B 4 Nets Y and NOOO13 EX6B EX6B SCH 5 20 3 80 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U4B 5 Nets X and CARRY_IN EX6B EX6B SCH 5 20 4 00 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U4B 6 Nets N00025 and NOOO15 EX6B EX6B SCH 6 40 3 90 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U4A 1 Nets Y and NOOO13 EX6B EX6B SCH 4 00 3 10 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U4A 2 Nets X_BAR_177 and X_BAR EX6B EX6B SCH 4 00 3 30 ERROR DRC0031 Same Pin ber conn
74. 1 The Browse spreadsheet editor 6 6 6c se eee ee ee ee 32 The property editor 4 4 2 heb SCR Re we eR eRe Roe ee x 35 Moving and resizing graphic objects 2 2 2 0020000048 39 Undoing redoing and repeating an action 40 Using the Accessories menu aona aes bd ee eR amp 42 Starting a project 43 Creating new projects designs libraries and VHDL files 44 Opening existing projects designs libraries and VHDL files 47 Working with files in a project oaaae 49 Saving projects designs and libraries o oo 50 Closing a Project iee soa oS ee ee a e ee ee oe ai 51 Setting up your projet 53 Defining your preferences yi oaoa SEDER RRA ERR SO 55 Defining colors print options oaoa 56 Controlling the grid eign kh eX Chee eee ee ek ee e 58 Setting pan and ZOOM 24 25 41 Ra ee ee Rw Mee ee oA 59 Defining selection options 4 ei 444 ea ea eH Oe Eee Se 61 Setting miscellaneous options 00000005 63 Setting text editor options bun a auee 8 aoe 4 Ok Eee Ey 66 Setting up your project template 4 4 sac 2a 4 eee Ee wee eae 68 Setting up fonts for new projects 2 94 404 seceded ee ee wa es 69 Defining title block information 230 646 6 kn a eR 70 Setting the schematic page size for new projects 72 Defining the grid reference 2s oo he oh KEE ERR Ae 74 Defining the default hierarchy option for new projects 76 Setting up compatibility w
75. 1 From the File menu choose New and then Project The New Project dialog box appears 2 Enter a name for your new PSpice project This name will also serve as the design s name 3 Click the Browse button to specify the new location for your project and design 4 Select Analog or Mixed Signal Circuit Wizard Click OK The Analog Mixed Mode Project Wizard appears 6 Select the PSpice part symbol libraries as desired Add them by clicking the Add button 7 Click the Finish button Capture creates a new project and design 303 Chapter 19 Using Capture with OrCAD PSpice Refer to the Creating and editing models chapter in the OrCAD PSpice User s Guide 304 Editing simulation models from Capture You can define and edit simulation models directly from Capture Models can be defined using the Model Editor The Model Editor is useful for characterizing specific models from data sheet curves It includes a text editor that is useful if model parameters are already defined for example models from a vendor or if the model is not supported for extraction by the Model Editor Adding and defining stimulus Adding and defining stimulus The Stimulus Editor is a utility that enables you to set up and verify the input waveforms for a transient analysis You can create and edit voltage sources current sources and digital stimuli for your circuit Menu prompts guide you to provide the necessary parameters such as the
76. 3 37 deleting 37 displaying 38 editing 31 37 231 editing a property file 278 exporting 276 exporting to a file 232 importing 279 importing from a file 232 Layout net properties 287 Index Layout part properties 284 Layout pin properties 289 removing 34 spreadsheet editor 231 user defined 31 property editor 35 118 creating anew property 37 deleting a property 37 displaying properties 37 editing a property value 37 editing values for all instances and occurrences 37 filters 36 key points regarding 36 property file format 277 PSpice 273 301 310 R recording macros 169 Rectangle command tool palette button 22 rectangles drawing 150 resizing 150 Redo command 40 toolbar 17 redoing actions 40 reference designator 236 removing macros 173 Repeat command 40 repeating actions 40 Replace Cache command 197 replacing a part instance in the design cache 197 reports bill of materials 232 265 cross reference 232 reversing actions 40 root module 7 99 Rotate command 156 Run ECO to Layout 281 S Save command 50 toolbar button 17 saving macros 173 scaling plotter output 92 331 Index printer output 92 schematic folders 6 43 attaching to a part 208 schematic page editor 11 displaying the property editor 35 tool palette 147 Schematic Page Properties command 53 dialog box Grid References tab 84 Miscellaneous tab 84 Page Size tab 83 schematic page
77. 7 1 2 The original pin 1 is changed to pin 2 however if you already have a pin 2 you will end up with two of them unless you change the original pin 2 to something else For this reason a second line is needed to go with the first line The complete command lines needed to perform a pin swap between pins 1 and 2 are CHANGEPIN U7 1 2 CHANGEPIN U7 2 1 With the exception of the PINSWAP command the commands in a swap file are was is based That is the commands specify what the original values were and what the new values will be For this reason unlike some board layout programs you cannot specify intermediate steps for the commands except for PINSWAP The PINSWAP command works off the present state of the pin For this reason you can perform intermediate steps such as PINSWAP U1 1 2 PINSWAP U1 2 3 First swap Second swap After both lines of the example above are processed what was pin 1 is now pin 2 what was pin 2 is now pin 3 and what was pin 3 is now pin 1 The series of changes is shown in the following figure after 2nd swap 2 12 1 O p before swap For PINSWAP and CHANGEPIN the part reference must be specified in the swap file as well as the old and new values Pin swaps are limited to pins of the same type and shape on the same part For example you can swap pins on U5B but you cannot swap a pin on U5B with a pin on USC GGATESWAP U1C U2B 12 1 2 3
78. 8 Figure 1 A simple hierarchical design as seen in the project manager 100 schematic folders they reference is called a simple hierarchy Figure 1 In a simple hierarchy each hierarchical block or part with an attached schematic folder represents a unique schematic folder Complex hierarchies A many to one correspondence between hierarchical blocks or parts with attached schematic folders and the schematic folders they reference is called a complex hierarchy In Figure 34 schematic A references schematic B three different times These references can be via hierarchical blocks or parts with attached schematic folders Figure 35 shows a complex hierarchical design as seen on the Hierarchy tab of the Capture project manager Hierarchical designs Schematic A Schematic B Figure 34 An abstract representation of a complex hierarchy B FULLADD ox File 8 Hierarchy FULLADD HALFADD_A EX6B UTA 74L508 U1B 74LS08 UIC 74LS08 U24 74L504 U2B 74L504 O U4 74L532 LFADD_B EX6B U1D 74LS08 U2C 74L504 U2D 74LS04 U3B 74LS32 U44 74L508 U4B 74L508 3C 74LS32 B B B HA B B Cc Figure 35 A complex hierarchical design as seen in the project manager 101 Chapter 6 Design structure For information about placing hierarchical blocks hierarchical ports hierarchical pins and off page connectors see Chapter 7 Placing editing and connec
79. 9 Handling unmodeled pins 4 4 2 4 oe ER BRR EDR PH EA 310 Glossary 311 Index 323 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Capture s session frame ve Bae Ge ee EAM ERR RO 4 New project manager window 2 0 eee ee eee 6 PUG secme Sa ewe AG Sls Owe RW ooh ewe ee oe es oO x 9 Hietatchy tab s so sa owa soas wee eh a a pe AE a Re ee 9 Schematic page editor 6244244454944 a 11 Parteditor isei ant a i a ARR E E ER SEA OES Rae Be 12 Programmer s editor naoa bee PGR Kew Eee Ee RS 13 Session log boy bee Kose Dae SER DRE ER EY RS COREE E 14 Captures toolbar ca 4254 Bee dae eee ae Shenae di saa ea 16 Schematic page editor tool palette 6 2s 6 eke ee ee ee ewe eS 20 Part editor tool palette 2c aet2o 6 Be Ree Date 8 EERE ES SS 23 Thestat s Dar t r sesen gi ks ee oe ewe oe E A 26 Browse spreadsheet editor 2 484064 See dee dese de eee ees 32 PrOpeny edit t s ssa s pari eee pons Oe BF Od pack ee ee 35 Open project design and schematic page 2 000 47 Open library e o soes ec bee Oe bee Oe OL EERE Re MESS ew Owe eH 48 Open VADL fil 5 ku eeose eee irks Kee eR eee ee SE eR E 48 Colors Print tab of
80. Capture has reserved the following shortcut key starting sequences Q az ti R L T LF T amp Shift at Ctrl lt Shift Ctrl Alt H lt Shift At JH Shift To use one of the starting sequences enter the letters on your keyboard that represent each key in the Keyboard Assignment text box add a plus sign then add an alphanumeric character for example CTRL P You have to use the starting sequences in the same order and in the same format as shown in the list above For example you cannot reverse the order of the keys nor can you use CONTROL instead of CTRL You cannot use a shortcut key starting sequence by itself For example SHIFT by itself will not function as a shortcut key Table 2 shows all of the alphanumeric characters function keys punctuation keys special keys and arrow keys that you can use with the shortcut key starting sequences listed above gt Be 7 7 WN mer qm 1 22 ond Pon Assigning a shortcut key to a macro Any shortcut keys you assign to your macros take precedence over the shortcut keys assigned to other Capture functions For example you can use Ctrl Del as a key combination for a macro even though it is the key combination assigned to clear the Capture session log To restore an original shortcut key assignment in this example restoring Ctrl Del to its original function of dearing the session log assign a different shortcut key
81. Follow the instructions above ending the line with a single mouse button click at the beginning point The polygon adopts the current line and fill style To resize a polyline or polygon Use the selection tool to select a polyline or polygon Edit handles appear at the ends of all the lines in the polyline polygon With the pointer on a handle press the left mouse button and drag the handle Adding fill to an object Adding fill to an object You can have closed shapes automatically filled in after you finish drawing them by defining a default fill From the Options menu choose Preferences then choose the Miscellaneous tab Click the Fill Style drop down box to display the options Note that you can specify separate options for the schematic page editor and the part editor Select one of the options and click OK To add fill to an object 1 Select the object 2 From the Edit menu choose Properties 3 Select a fill style from the Fill Style drop down box then click OK Mirroring an object You can mirror objects horizontally vertically or both horizontally and vertically Some objects such as text and bitmaps cannot be mirrored If the Mirror command appears dimmed on the Edit menu the object cannot be mirrored To mirror an object 1 Select the object 2 From the Edit menu choose Mirror then choose Mirror Horizontally Mirror Vertically or Both The object flips in the chosen direction 155 Chapter 8 Adding
82. If you select the Scale to page size option in step 2 the Page size area becomes available Select a sheet size This results in multiple sheets of paper if you select a sheet size larger than your printer paper Click OK to print the image Special considerations for plotting Vector pen plotters do not support bitmaps directly If you are sending Capture output to such a plotter it will not plot your bitmaps Most inkjet and thermal plotters will plot bitmaps Plotter pen colors The plotter driver maps your color choice to the closest available pen color as established in your plotter driver configuration See your plotter s driver setup and documentation for more details Many plotters do not have drivers that ship with Windows If you do not see the plotter you are looking for in the list of available drivers contact your plotter manufacturer and ask for a Windows driver If your plotter emulates HPGL use the HPGL driver as an alternative solution Special considerations for plotting Tip Vector based plotters tend to produce higher quality output than raster based printers Note The plotter setup dialog boxes are only accessible from the Windows Control Panel See the documentation induded with Microsoft Windows regarding the Windows Control Panel 93 Chapter 5 Printing and plotting 94 Part Two Creating designs Chapter 6 Design structure describes how to customize the working environment specific
83. Libraries list box that match the part name appear in the box below the Part text box When you select a part from this box its graphic image displays in the preview box When you have located the part you want to place click OK An image of the selected part is attached to your pointer You can click the right mouse button to display a pop up menu with commands that you can use to change the properties of the part before you place it You can mirror the part horizontally or vertically rotate the part or edit the part s properties Move the pointer to the location on your schematic page where you want to place the part then click the left mouse button Placing and editing parts El Tip You can add more libraries to the Libraries list box by clicking Add Library Capture displays a standard Windows dialog box that you can use to locate a library to add to the list Tip You can remove a library from the Libraries list box by selecting it and clicking Remove Library Tip You can switch between the Normal view of apart and the Convert view of a part by choosing the appropriate option in the Graphic section For more information on convert views see The Graphic option of the Place Part dialog box on page 116 Tip If your part is a package that contains multiple parts you can use the Part drop down list in the Packaging area to select which part in the package to view after you ve selected a part from the list that dis
84. OrCAD Capture User s Guide Copyright 1998 OrCAD Inc All rights reserved Trademarks OrCAD OrCAD Layout OrCAD Express OrCAD Capture OrCAD PSpice and OrCAD PSpice A D are registered trademarks of OrCAD Inc OrCAD Capture CIS and OrCAD Express CIS are trademarks of OrCAD Inc Microsoft Visual Basic Windows Windows NT and other names of Microsoft products referenced herein are trademarks or registered trademarks of Microsoft Corporation All other brand and product names mentioned herein are used for identification purposes only and are trademarks or registered trademarks of their respective holders 60 30 611 First edition 30 November 1998 Technical Support 503 671 9400 Corporate offices 503 671 9500 OrCAD Japan K K 81 45 621 1911 OrCAD UK Ltd 44 1256 381 400 Fax 503 671 9501 General email info orcad com Technical Support email techsupport orcad com World Wide Web http www orcad com OrCAD Design Network ODN http www orcad com odn 9300 SW Nimbus Ave Beaverton OR 97008 USA Contents Part One Chapter 1 Chapter 2 Contents iii Before you begin xvii How to use this guide ck ae eek RA eK a xix Symbols and conventions saosaoa a a xix Related documentation 0 94 a a xx Capture basics Getting started 3 Starting Gapture s ss oewos bose oe ode oe He Ghee ee de 3 The Capture session frame i pe ea A we RE wee 4 The Capture work environment 5 The p
85. Repeat step 2 as necessary Click an area where there are no parts or objects to deselect the text The text bounding box Text that you place wraps according to the dimensions of its bounding box To change how the text wraps 1 Select the text so that it displays in the selection color with edit handles at the four corners 2 Position the pointer over an edit handle and drag the edit handle The text inside the bounding box rewraps within the new dimensions Deleting text To delete the text and its bounding box select the text so that it displays in the selection color with edit handles at the four corners Press either the key or the key To delete text when it is highlighted in the Edit Text dialog box press the key the key or begin typing new text To delete individual words within the text double click the text or select the text and choose Properties from the Edit menu The Edit Text dialog box appears with the text highlighted Press one of the four arrow keys to remove the text highlighting Double click the word you want to remove Press the key or the key Modifying text To add more text to text you have already placed double click the text or select the text and choose Properties from the Edit menu The Edit Text dialog box appears with the text highlighted Press one of the four Placing text 161 Chapter 8 Adding and editing graphics and text arrow keys to remove the text highlighting T
86. SS 4 Ae Xk ae Ee 203 New Part Properties dialog box 004 206 Attaching a schematic folder toapart 208 Adding graphics text and IEEE symbols to a part 209 Placing pins on a part ns we 6X ark oo eo oe ee eee a 210 Place Pin dialog POX 2 sai aco es he eee ee ee eS 212 Place Pin Array dialog box 004420 ewe de Gi nws eee 218 About power and ground pins 4 22 244 4 44844464 FRR REE RSH 220 Displaying invisible power pins 0 0000 4 221 FEditi g an existing part a gt ake ke ee ee he ee ee 222 Editing a part in a library 14 6 044 644 9o5 2 4e wee ae be 222 Editing a part on a schematic page 00004 223 Viewing parts in a package 1 4 lt 2 20aF84 24 eh e4 fo Rx be eS 225 Editing parts in a package 4 oS eboe S See 4 eee Eee oR eee 226 Viewing a part s CONVel 26a eieebivde dentate eer aae 227 Processing your design About the processing tools 231 Tools overview a oa a a a a a 232 Updating instances and occurrences ooo 234 Preparing to create a netlist 235 ANNONE ecc oca aaa aamen e k eee ee ey a dae ae E 235 Annotate dialog box o aoaaa a 237 Updating properties oaoa ek te She oa EGER R eS 239 Update Properties dialog box 3 4 0k cae dee eww eM aA 241 Update file format 4284 4 ne tae ed eet eae oe 243 Checking for design rules violations 0000 244 Design Rules Check dialog box Design Rules Check tab 247 Design Rules Ch
87. Select an object in Capture The corresponding object is highlighted on the board in Layout 297 Chapter 18 Using Capture with OrCAD Layout 298 Cross probing from Layout to Capture When ITC is enabled in Capture selecting objects in Layout causes Capture to highlight the corresponding items in the schematic page editor Selecting a component or a component pad causes Capture to highlight all the parts included in that module Selecting a track or net causes Capture to highlight the corresponding net on the schematic page Any action you perform to select an object on your Layout board selecting using the mouse using query or using the Find command causes the corresponding object on the Capture schematic page to be highlighted For more information refer to Table 6 Cross probing between Capture and Layout Table6 Cross probing from Layout to Capture Selecting this in Layout Highlights this in Capture Component All parts in the package Track Corresponding wire connection Net Corresponding nets Pad on component Corresponding part if the Manual Route tool is selected in Layout the net is highlighted To select an object in Layout for cross probing with Capture 1 Open a Capture design and a matching Layout design 2 Choose Half Screen from Layout s Window menu then position the Capture and Layout session frames so that you can see both 3 From Capture s Options menu choose Preferences T
88. Template then choose the SDT Compatibility tab 2 For each Capture property you want mapped to an SDT part field specify the part field to contain the property value 3 Click OK Changing properties of existing projects When you create a new project it uses the options defined in the Design Template dialog box You can set the options on existing projects using the Design Properties dialog box from the project manager s Options menu The options are e Fonts You can define the fonts for schematic page objects that contain text such as part references and part values e Hierarchy You can specify hierarchical blocks and part instances whose Primitive property is set to Default be treated as primitive cannot descend into attached schematic folders or nonprimitive can descend into attached schematic folders e SDT Compatibility You can specify which Capture properties map to which SDT part fields when saving the design in SDT format e Miscellaneous You can view the project name root schematic folder name creation time and modification time Also if you need to see the power pins on a schematic page for documentation or debugging purposes you can display them on the screen Changing properties of existing projects You can override other Design Template options page size and grid reference using the Schematic Page Properties dialog box For further information see Changing properties of existing sche
89. addition to input and output pins there are also 3 state bidirectional open collector open emitter passive and power pins If a pin connects to a wire it is a scalar pin if it connects to a bus it is a bus pin See also hierarchical pin he exchange of identical pins in order to decrease route lengths The physical spacing between pins on a device A graphic object made up of polylines multiple contiguous segments whose beginning and end are attached to form a closed shape that can be filled See also polyline polyline port primitive project project manager property root schematic folder scalar schematic design schematic folder Glossary A line with multiple contiguous segments You place a polyline using the Polyline command on the Place menu A VHDL term for an interface element of a VHDL entity Serves as a communication channel between VHDL design units Express part pins and hierarchical ports will produce a VHDL port See also hierarchical port A part or hierarchical block with no underlying hierarchy A single file that includes all of the schematic folders schematic pages parts and symbols that make up a project You can view these project elements in the project manager A basic project contains one schematic folder and one schematic page while a complicated project may contain an unlimited number of schematic folders each with many schematic pages The Express window used to
90. ain the search list then click OK Valid wildcard characters are an asterisk to match multiple characters and a question mark to match individual characters To find a part on a schematic page 1 Open the schematic page 2 From the Edit menu choose Find 3 Enter the property value string that defines the part you want to search for 4 Select Parts from the object types in the Scope area 5 Click OK to start the search Parts that have a property value matching the property value string of step 3 are selected on the schematic page To find a part in a project 1 In the project manager select the schematic folder or schematic pages you want to search 2 From the Edit menu choose Find 3 Enter the property value string that defines the part you want to search for 4 Select Parts from the object types in the Scope area 5 Click OK to start the search Parts that have a property value matching the property value string of step 3 are listed in the browse window Finding parts in a project Tip You can edit the properties of multiple parts when they are selected using the property editor From the Edit menu choose the Properties command or choose Edit Properties from the right mouse button s pop up menu For information on using the property editor see The property editor on page 2 35 189 Chapter 10 Changing your view of a schematic page 6 Double click on the part in the browse spreadsheet to open the s
91. alue m Report T Report the x and Y coordinates of all parts T Report unused parts in multiple part packages Report File View Output C PROGRAM FILESSORCADSCAPTU Browse Figure 73 Cross Reference Parts dialog box Scope Specifies whether to process the entire design or just the selected schematic page or pages Sorting Specifies whether to sort output by part value or part reference Report the X and Y coordinates of all parts Ifyou check this option the report includes the X and Y coordinates of all parts Report unused parts in multiple part packages If you check this option the report identifies unused parts in multiple part packages Report File The name of the file to contain the cross reference report Creating a cross reference report 271 Chapter 16 Creating reports 272 Exporting and importing schematic data 17 Exporting and importing designs You use the Export Design command to export a design or library in an EDIF or a DXF format You use the Import Design command to import a design or library in MicroSim Schematics EDIF or custom format Chapter 17 Exporting and importing schematic data 274 Exporting designs You can export either designs or libraries To export a design or library 1 Open the project containing the design or library to export 2 Ifyou are exporting a design select the design s folder or If you are exporting a library select the li
92. and on the Place menu For more information see Drawing lines on page 8 149 x Polyline Draw polylines Press to draw non orthogonal polylines Equivalent to the Polyline command on the Place menu For more information see Drawing polylines and polygons on page 8 154 o Rectangle Draw rectangles lt Shift constrains to a square Equivalent to the Rectangle command on the Place menu For more information see Drawing rectangles and squares on page 8 150 o Ellipse Draw ellipses lt Shift constrains shape to a circle Equivalent to the Ellipse command on the Place menu For more information see Drawing circles and ellipses on page 8 151 The tool palettes Table2 Tools on the schematic page editor tool palette continued Arc Draw arcs Equivalent to the Arc command on the D Place menu For more information see Drawing arcs on page 8 152 Text Place text Equivalent to the Text command on the Place menu For more information see Placing text on page 8 159 The part editor tool palette The first group of tools on the part editor tool palette are electrical tools used to place pins and IEEE symbols The second group of tools are drawing tools used to create graphical objects without electrical connectivity b oooO xioa Sy O o gt 4 Figur e11 Part editor tool palette For information on how to use the electrical sae ser eT editor e ee P tools
93. and package libraries to Capture An online searchable version of this guide Concise descriptions of the commands shortcuts and tools available in Capture How to use this guide ODN OrCAD Design Network An internet based technical support solution ODN www orcad com odn provides a variety of options for receiving and accessing design and technical information ODN provides e A Knowledge Base with thousands of answers to questions on topics ranging from schematic design entry and VHDL based programmable logic design to printed circuit board layout methodologies e A Knowledge Exchange forum for you to exchange information ideas and dialog with OrCAD users and technical experts from around the world A list of new postings appears each time you visit the Knowledge Exchange for a quick update of what s new since your last visit e Tech Tips that deliver up to the minute product information in your email box Stay informed about the latest advances tips and announcements on your OrCAD product e Online technical support via the Tech Support Connection Use this service to submit technical support incidents online Create submissions upload files track your incidents and add comments directly into OrCAD s support database xxi Before you begin xxii Part One Capture basics Chapter 1 Getting started describes how to start Capture Chapter 2 The Capture work environment describes the things you ll
94. and press Enter lt 4 Note that changing an instance property value causes that value to shine through to all occurrences of the instance that do not have a value independent of the instance To edit the a property value for all instances and occurrences currently displayed in the property editor 1 In the property editor select the property name column that has the value you want to change From the popup menu choose Edit Capture displays a dialog box for the selected property Type the new value for the property and click OK The new value is applied to that property for each instance and occurrence that is currently displayed in the property editor To delete a property in the property editor 1 Select the column of the property you want to delete Editing properties Note Some property values those that have particular significance to the design database cannot be edited Note Some property values those that have particular significance to the design database cannot be deleted 37 Chapter 2 The Capture work environment For information on the Display Properties dialog box see the Capture online help Note Although you can only set the display for instances the property value that appearson the schematic page isthat of the particular occurrence 38 2 Click the Delete Property button The property is removed The property column remains in the display To see that the property is deleted
95. ands on the project manager s Design menu To edit a part in a library 1 From the File menu choose Open A standard Open dialog box appears Choose the library containing the part you want to edit The library opens showing all its parts Double click on the part you want to edit The selected part appears in the part editor Edit the part You can resize it add or delete graphics or symbols and add or delete pins These processes are all described in Creating a new part earlier in this chapter You can also edit the part s properties Editing properties is described in Chapter 2 The Capture work environment When you are done editing the part you must save it From the File menu choose Save The part is saved in the library Editing a part on a schematic page Once you edit a part on a schematic page you can apply the edits to all instances of the same part in the project or you can apply the edits only to the particular part instance you edit Caution Once you edit a part instance on a schematic page it is no longer linked to its corresponding library part In addition a new part with n appended to the original part name appears in the design cache This means that you can t perform an Update Cache on an edited part since there is no link to the original library To edit a part instance on a schematic page 1 2 Select a part instance on a schematic page From the Edit menu choose Part
96. appearance before you commit it to paper To preview a schematic page 1 Or From the File menu choose Print Preview The Print Preview dialog box appears Specify appropriate values in the dialog box and then click OK The Print Preview display window opens with a display of your schematic page part or package Use the Previous page and Next page buttons to view other pages you intend to print To zoom in move the magnifier pointer to a specific area and click the left mouse button Choose the Close button to close the Print Preview window Choose the Print button to send the page or pages to the output device using the defaults set in the Print Setup dialog box 91 Chapter 5 Printing and plotting 92 Scaling printer or plotter output You can manually scale or have Capture automatically scale printer output and plots to fit a given paper size To scale a print or a plot 1 From the File menu choose Print The Print dialog box appears Select one of the three options in the Scale box e The Scale to paper size option scales each schematic page to fit a single sheet of paper as configured in the printer driver e The Scale to page size option scales each schematic page to the sheet size you select in the Page size area The sheet size is configured in the Page Size tab in the Design Template dialog box e The Scaling option scales your schematic page to a factor between 0 100 and 10 000
97. apture schematic interactively About the processing tools A design process typically involves placing and connecting parts in the schematic page editor then using Capture s tools to specify how parts are to be packaged and uniquely identified You add information for simulation synthesis board layout purchasing or other external functions then create a netlist and incorporate back annotation information from external applications As shown in the figure at right you use Annotate Design Rules Check and Cross Reference to package the parts in your project and to check that there are no invalid conditions In practice you might run these tools several times before moving on to the next phase You can add properties to parts or pins or change their values see The property editor on page 2 35 If you prefer editing in a full featured spreadsheet or database program use Export Properties to write data out and Import Properties to read it back in 1 Design Rules Check Update Properties Property editor Spreadsheet or database Import Properties Bill of Materials Chapter 13 About the processing tools Note You won tbe able to use any of these tools to modify a schematic design attached to a hierarchical block if the design is external to the current project 232 Use Create Netlist to convey project information to Layout PSpice or Express Simulate Layout can create
98. archical pins 131 Placing hierarchical ports 24 6 2 hed ees ed wea eH ee eo 131 Place Hierarchical Port dialog box 2 4 a2 5 ee da sw Gee 132 Placing hierarchical pins 44 4260844245 Ba as Hs 133 Place Hierarchical Pin dialog box 4 0eb 4 eae ewes 135 Editing hierarchical ports and hierarchical pins 135 Placing and editing off page connectors 2 004 136 Placing off page connectors s 24a44 esa 24 ee Bee PS Sew ee 136 Place Off Page Connector dialog box 138 Editing off page connectors cf 44 es ete ns ed tha R ioe Ss 139 Placing and connecting wires and buses 00 140 Piscine Wires s oca i ake BG ee eR ESE Se LEER RS ASS 141 Editing WIGS gt so sees eee CDSs Eee Ee CHE OE we OE s 142 Placing DUS S nk be OR A ke ee RE ee ee ee Ee ee 143 Fditing DUSES o s causare sit oH ede e we Tee 144 Placing BUS entries ecni a ca aa aa e aog e ea a a Oe RE RSS 144 Editing bus entries aoaaa EES Ewe EE eS 145 Ripping a subset of signals off the bus aaau aaa aaa 145 Adding and editing graphics and text 147 DraWing tools a sossa hee RE Aes a ae L oe Cee E E a ES 148 Drawing lines ss sonu erso a aaee derea n EE eRe Re SS 149 Drawing rectangles and Squares 4 swede a ea ne ewe ee ed 150 Drawing circles and ellipses tadadea aaa iets Soe dues 151 Drawing AICS aus bt ne Oe Sah eats es OY Sete eae Oe os 152 Drawing polylines and polygons ooa 154 Add
99. are measured in inches or millimeters depending on what you have configured in the Page Size tab on the Schematic Page Properties dialog box Your pointer moves to the new coordinates Moving to a new location 183 Chapter 10 Changing your view of a schematic page 184 To move a specific distance 1 From the View menu choose Go To The Go To dialog box appears 2 Choose the Location tab 3 Enter the X and Y values that you want the pointer to move select the Relative option then click OK The jump distance is measured in inches or millimeters depending on what you have configured in the Page Size tab on the Schematic Page Properties dialog box Your pointer moves the specified distance Go To dialog box Location tab Goro Location Grid Reference Bookmark x Y Absolute C Relative Cancel Hep Figure 56 Location tab of the Go To dialog box X Specifies the X axis coordinate for the jump Y Specifies the Y axis coordinate for the jump Absolute and Relative Specifies the jump as absolute to the indicated coordinates or relative the coordinates are offset to the pointer s current position Moving to a new location Jumping to a specific grid reference Grid references appear on the left and upper edges of the schematic page To jump to a reference area 1 From the View menu choose Go To The Go To dialog box appears 2 Choose the Grid Reference tab 3 Select a horizontal grid refere
100. art of a project Acronym for Electronic Design Automation Software and hardware tools used to ascertain the viability of an electronic design These tools perform simulation synthesis verification analysis and testing of a project Acronym for Electronic Design Interchange Format A standard published by the EIA Electronic Industries Association that defines semantics and syntax for an interchange format that communicates electronic designs See convert DeMorgan equivalent Acronym for Electrical Rules Check a subset of the Design Rules Check tool The ERC matrix is used by Design Rules Check to check for when evaluate connections between pins off page connectors hierarchical ports and hierarchical pins A schematic structure with no hierarchy no hierarchical blocks no parts with attached schematic folders A flat design can include schematic pages in which output signals of one schematic page connect laterally to input signals of another schematic page through objects called off page connectors You place these objects using the Off Page Connector command on the Place menu in the schematic page editor Flat designs are practical for small designs with few schematic pages See also hierarchical design complex hierarchy simple hierarchy off page connector forward annotate graphic object grid reference heterogeneous package hierarchical block hierarchical design hierarchical pin hierarchical port h
101. ases press Esc 145 Chapter 7 Placing editing and connecting parts and electrical symbols 146 Adding and editing graphics and text You can create a wide variety of graphic shapes to add to your schematic pages You can work with the snap to grid option turned on or turned off For close work you may want to zoom in on your graphic using the Go To command on the View menu Before you begin drawing you may want to specify default line and fill styles because all lines and shapes you draw will use the current line style and closed shapes that you draw will use the current fill style You can use a variety of line or fill styles for any part You can specify these styles in the Miscellaneous tab in the Preferences dialog box Note If the pointer snap to grid option is deared then placemed graphics and text snap to a finer grid that is one tenth the size of pin to pin spacing Chapter 8 Adding and editing graphics and text ee Ll gt 1 1 A 8 Ea ar u e y O o gt Al 148 Draw ing tools Capture has two tool palettes one for the schematic page editor window and one for the part editor window Both tool palettes are movable and resizable and display tooltips that identify each tool The tool palettes are each divided into two groups of tools The electrical tools are in the first group and the drawing tools are in the second group Figure 53 Schematic page editor tool palette SEs
102. atic page for warnings defined in the ERC Matrix tab Check hierarchical port connections Verifies that hierarchical pins on schematic pages in the parent schematic folder match hierarchical ports on schematic pages in the child schematic folder Errors are generated if a hierarchical pin specified on a schematic page in a parent schematic folder doesn t have a corresponding hierarchical port with an identical name on a schematic page in the child schematic folder if the number of hierarchical pins and hierarchical ports are different between the parent and child schematic folders and if the type of the hierarchical pins and hierarchical ports doesn t match Check off page connector connections Verifies that off page connector names on a schematic page match those on other schematic pages Check unconnected nets Checks for these conditions nets that aren t connected to at least two pins or hierarchical ports nets that don t have a driving signal and two nets with the same name in a schematic folder but no off page connector or hierarchical port to connect them Checking for design rules violations Check SDT compatibility Checks for compatibility with OrCAD s SDT product in case you plan on saving the project in SDT format See Capture s online help for information about the rules you should follow if you are planning to use a Capture project in SDT Report identical part references Checks for unique part references a
103. ation on your schematic page where you want the symbol and click the left mouse button This places the symbol on your schematic page You can place multiple instances of the symbol by clicking the left mouse button each place you want an instance of the symbol When you are done placing symbols choose End Mode from the right mouse button pop up menu or press Esc Placing and editing off page connectors Tip You can add more libraries to the Libraries list box by clicking Add Library Capture displays a standard Open dialog box that you can use to locate a library to add to the list Tip You can remove a library from the Libraries list box by selecting it and clicking Remove Library Tip You can assign a name by typing it in the Name text box The name is used to connect to other off page connectors in the same schematic folder You can also assign a name after the symbol is placed Tip Allof the options on the Place Off Page Connector dialog box are described later in this section Note All objects that you can place on a schematic page have right mouse button pop up menus These menus are context sensitive meaning the displayed commands are appropriate for the selected object For information about the commands on a pop up menu see Capture s online help 137 Chapter 7 Placing editing and connecting parts and electrical symbols 138 Place Off Page Connector dialog box Place Off Page Connector x Symb
104. bjects 39 Chapter 2 The Capture work environment Tip You can use the Repeat command to align objects or to quickly create repetitive structures such as buses 40 Undoing redoing and repeating an action You use the Undo command to undo your action To repeat an edit action use the Repeat command For example you might move a selected object five grid units then realize you also need to move a different object the same distance Select the second object then from the Edit menu choose the Repeat command You can use the Undo Redo and Repeat commands with the following actions e Placing objects e Deleting objects except for the Repeat command e Copying objects e Moving objects e Resizing objects e Rotating objects e Mirroring objects To undo an action 1 From the Edit menu choose Undo To reverse an undone action 1 From the Edit menu choose Redo To repeat a command 1 Perform the command once 2 From the Edit menu choose Repeat Undoing redoing and repeating an action To repeat a copy operation 1 2 Select an object on a schematic page Press and drag the object to a new location This creates a copy of the object Leave the object selected From the Edit menu choose Repeat The pointer repeats the relative move in step 2 and an additional object is placed 41 Chapter 2 The Capture work environment 42 Using the Accessories menu You can use extensions to the OrCAD
105. bol s name This name is used to determine which like named hierarchical ports the port will connect to Add Library Displays a standard Open dialog box that you can use to locate a library and add it to the Libraries list Remove Library Removes the selected libraries from the Libraries list Placing hierarchical pins You place hierarchical pins inside hierarchical blocks on schematic pages in parent schematic folders You name the hierarchical pins to correspond to hierarchical port names on schematic pages in child schematic folders To place a hierarchical pin 1 Select a hierarchical block Note If you do not select the Pointer snap to grid option in the Grid Display tab of the Preferences dialog box hierarchical pins you place in a hierarchical block may not snap to grid Delete the pin and place it again with the snap to grid option selected Tip You can only place a hierarchical pin within the boundaries of a hierarchical block A hierarchical pin connects to any like named hierarchical port on the schematic pages in the schematic folder you attached to the hierarchical block 133 Chapter 7 Placing editing and connecting parts and electrical symbols Note Bus width hierarchical pins must be given bus type names See Bus naming conventions in Capture sonline help for more information 134 2 From the schematic page editor s Place menu choose Hierarchical Pin The Place Hierarchical Pin dialog box
106. brary s folder 3 From the project manager s File menu choose Export Design The Export Design dialog box displays EDIF pxF Save As GNS SFULLADD FULL4DD ED Browse Configuration file Browse Cancel Help Figure 74 Export Design dialog box 4 Choose either the EDIF or the DXF tab 5 Specify a path and filename in the Save As text box 6 If you re using the EDIF tab locate and select a configuration CFG file 7 Click OK The design or library is exported to a file Importing designs You can import either designs or libraries 1 From the project manager s File menu choose Import Design The Import Design dialog box displays Import Design x PSpice EDIF Custom Browse Save s C Program Files Orcad Capture Browse MSIM INI File CAWINNTSmsim ini Browse IV Translate Hierarchy I Consolidate all Schematic files into one Design file Figure 75 Import Design dialog box Choose the PSpice EDIF or the Custom tab 2 3 Locate and select the file to import in the Open text box Specify a path and filename in the Save As text box If you re using the PSpice tab follow these steps a Click the appropriate Browse button to locate MSIM INI file Select the Translate Hierarchy option and the Consolidate all Schematic files into one Design file option as appropriate If you re using the EDIF tab or the Custom tab follow the
107. causes the corresponding objects to be highlighted in Layout Also selecting objects in Layout causes the corresponding objects to be highlighted in Express Both applications must be open See also intertool communication An electrically equivalent part based on the DeMorgan rules of equivalence These rules represent the duality of AND and OR in Boolean expressions if all AND operations are changed to OR operations all OR operations are changed to AND operations and all variables and constants are negated then the value of the expression remains unchanged A DeMorgan equivalent can be stored in the convert of a part See also convert 313 Glossary 314 descend design cache design rules check DRC document EDA EDIF equivalent ERC flat design In a hierarchical design to open and view the child schematic folder represented by a hierarchical block on the parent schematic page To descend a hierarchical design you select a hierarchical block in the schematic page editor then choose the Descend Hierarchy command on the View menu See also ascend child parent A local library contained in each project that contains all the parts and symbols used in the project This tool on the project manager s Tools menu checks a design or part of a design for conformance to a set of configurable design criteria and electrical rules A schematic folder schematic page library part or symbol Each of these is p
108. ccurrences 10 31 32 35 36 in the property editor 36 Off Page Connector command 136 tool palette button 22 off page connectors 104 in flat designs 98 example 105 nets between schematic pages in a single schematic 102 placing 139 properties 31 open collector pin type 214 Open command 47 toolbar button 17 open emitter pin type 214 output pin type 214 Outputs folder 6 Index P Package command 225 226 package view part editor 12 packages 111 195 editing 226 heterogeneous 195 201 homogeneous 195 201 attaching schematic folders 200 plotting 89 printing 89 user defined properties 31 viewing 225 page size defining for new designs 12 panning defining 59 Part command 113 tool palette button 21 part editor 12 package view 12 part view 12 tool palette 23 147 part instances 10 198 editing 223 user defined properties 31 see also instances part occurrences 10 see also occurrences part properties transferring to Layout 284 part reference 236 part view part editor 12 parts attached schematic folders 99 101 103 convert view 206 227 copying to a different library 194 editing ina library 222 on a schematic page 223 finding 189 heterogeneous package 195 201 homogeneous package 195 201 attaching schematic folders 200 IEEE symbols placing 209 instances 10 198 moving to a different library 194 multiple part packages 195 occurrences 10 packages 195 part
109. cent setting When you zoom in or out the view changes by the zoom factor You can define pan and zoom settings for the schematic page editor and the part editor independently Colors Print Grid Display Select Miscellaneous Text Editor Schematic Page Editor Part and Symbol Editor Zoom Factor fe Zoom Factor f2 Auto Scroll Percent E Auto Scroll Percent E Cancel Help Figure 20 Pan and Zoom tab of the Preferences dialog box Defining your preferences 59 Chapter 4 Setting up your project Tip You can also auto scroll without an object attached to the pointer by pressing the left mouse button as the pointer approaches the edge of the window 60 To configure zoom factor and auto scroll percent 1 From the Options menu choose Preferences then choose the Pan and Zoom tab For the schematic page editor and the part editor set these options e Zoom Factor Enter an integer to indicate the magnification or reduction of the objects shown in the window when you zoom in or zoom out This number is a multiplier for each time you zoom in or out e Auto Scroll Percent Enter the percent of the window s horizontal or vertical dimension by which the display will scroll when the pointer approaches the edge of the window with an object attached Click OK Defining your preferences Defining selection options You can specify whether objects are selected when the selection border intersec
110. change the units the page size changes are not translated between the two types of units 72 Setting the schematic page size for new projects For new projects you can specify the default unit of measure the default width and height of schematic pages and the spacing between pins The value you enter in the Pin to Pin Spacing text box defines how close together pins are placed in the part editor It also defines the grid spacing the space between grid dots or grid lines Design Template x Grid Reference Hierarchy SDT Compatibility r Units Inches Millimeters New Page Size Width Height CA a70 20 inches CB fis 200 azo inches 20 200 fis 200 inches CD a220 f2o 200 inches DIE 220 a220 inches a70 20 inches for inches C Custom Pin to Pin Spacing Cancel Help Figure 27 Page Size tab of the Design Template dialog box To set up the schematic page size 1 From the Options menu choose Design Template then choose the Page Size tab 2 Inthe Units area select the default unit of measure for new projects This setting only affects the schematic page editor not the part editor 3 Select the default schematic page size for new projects For each schematic page size A B C D E and Custom if the unit of measure is Inches or A4 A3 A2 Al AO and Custom if the unit of measure is Millimeters you can specify the width and height The values that you enter in the Widt
111. chematic folders SDT Compatibility You can specify which Capture properties map to which OrCAD Schematic Design Tools SDT part fields when saving a project in SDT format Setting up your project template Setting up fonts for new projects You can define the fonts assigned to the text associated To change the fonts for an existing project with different schematic page objects in new designs The use the Fonts tab in the Design Properties fonts specified here do not affect existing designs dialog box You can access this dialog box SES ES by choosing Design Properties from the project manager s Options menu itle Block Page Size Grid Reference Hierarchy SDT Compatibility Arial 7 Slias Arial 7 Pin Name Arial 7 Bookmark Arial 7 Pin Number Arial 7 Border Text Arial 7 Port Arial 7 Hierarchical Block Arial 7 Power Text Arial 7 Net Name Arial 7 Property Arial 7 Off Page Connector Courier New 7 Text Arial 7 Patt Reference Arial Title Block Text Arial 7 Part Value Cancel Help Figure 24 Fonts tab of the Design Template dialog box NO aesan TOMES USAR AON nE Sells The default fonts were selected for optimal 1 From the Options menu choose Design Template compatibility with SDT Changing these then choose the Fonts tab fonts may result in less optimal text sizes 2 Click the left mouse button on the font of an item A for translated projects standard Windows font dialog box appears 3 Select a font
112. chematic page editor with the found part displayed and selected 190 Part Three Libraries and parts Chapter 11 About libraries and parts describes how the parts in a design are stored in the design cache and how you can replace or update parts in the design cache Chapter 12 Creating and editing parts describes how to create new parts and store them in a library how to edit parts in a library and how to edit parts after they are placed on a schematic page About libraries and parts 11 Capture s libraries contain more than 30 000 parts This chapter describes Capture s libraries and explains how parts packages and electrical symbols are stored in libraries Chapter 11 About libraries and parts ig TTL OLB io x A Note If you edit a library provided by Capture you should give ita new and unique name so that you will not copy over your changes when you receive updated libraries For information about printing a part see Chapter 5 Printing and plotting For general information about using the project manager see Chapter 2 The Capture work environment Tip You can also use the Cut Copy and Paste commands on the Edit menu to move or copy parts between libraries 194 Libraries Libraries are files that contain reusable part data They contain parts that you can place as instances on schematic pages Libraries contain a variety of symbols such as power symbols ground symbols and so
113. ck and other electrical objects in an attached schematic folder The picture at left shows hierarchical pins X Y SUM and CARRY within a hierarchical block and a hierarchical port CARRY_IN outside a hierarchical block A part with an attached schematic folder functions like a hierarchical block and pins on a part with an attached schematic folder function like hierarchical pins within a hierarchical block You can use either method to define a hierarchy The only difference between the methods is that a part with an attached schematic folder can be reused You can attach a schematic folder that is external to a project to a hierarchical block but be aware that you won t be able to use any of Capture s tools to make changes to the external design unless you explicitly open that external design Caution If you incorporate an external schematic folder into a hierarchical block include the schematic folder when you give the project to another engineer or to a board fabrication house Attached schematic folders external to a project do not automatically accompany schematic folders that you copy or move to another project For this reason you should copy all attached schematic folders into your project if you want your project to be portable Hierarchical ports Hierarchical ports provide vertical upward connecting and lateral connections within a design hierarchy A hierarchical port connects vertically to a like named hi
114. cludes parts that project manager s Tools menu to create a bill of materials don t have pins This makes it possible to in a file which you can then print using a word processor _indude non electrical parts such as screws or text editor The bill of materials includes the properties washers and other hardware that you may item quantity reference and part value You can have in your project These parts won t customize the report to include other properties however appear in a netlist because they don t have pins To create a bill of materials 1 If desired use a text editor to create an include file as described in Include file format on page 16 269 Chapter 16 Creating reports 266 From the project manager s Tools menu choose Bill of Materials The Bill of Materials dialog box displays Fill in this dialog box as desired If you want to customize the information contained in the bill of materials report fill in the information in the Line Item Definition area If you are using an include file be sure to check the Merge an include file with report check box enter the combined property string and specify the name of the include file Click OK when you are ready to create the report After the bill of materials is generated you can double click on its name in the Output folder in the project manager to view it in the text editor The best way to view a bill of materials is to open it ina spreadsheet program such as M
115. constrained to multiples of 90 unless you hold down the key while you draw the wire 141 Chapter 7 Placing editing and connecting parts and electrical symbols Tip To edit a net alias double click the alias This displays the Edit Net Alias dialog box in which you can change the Alias Color Rotation or Font Once you have finished editing the properties click OK Note For more information about editing wires and nets see the Capture online help 142 5 When you are done placing wires choose End Mode from the right mouse button pop up menu or press Esc Editing wires Capture makes it easy for you to modify the appearance and properties of a wire You can implement most changes with two clicks of the mouse or a key combination To assign a net alias to a wire 1 Select the wire and choose Properties from the Edit menu choose Edit Properties from the pop up menu or Double click the wire 2 The property editor appears allowing you to enter a net alias this alias serves as the netname in a netlist 3 Once you have finished entering a net alias click OK Note When you click a wire all its graphical handles are highlighted To add another wire to the selection hold down the Ctri key and click the additional wire To select the entire net select the wire then choose Select Entire Net from the right mouse button pop up menu Zoom out to view the entire selected net To edit the display properties of
116. ct footprint isn t found PARTSHAPE s value is compared to the data in SYSTEM PRT in ORCADWIN LAYOUT DATA and the footprint listed in SYSTEM PRT is used POWERPIN YES Defines non wired pins such as unusual voltages as belonging to a particular net POWERPIN is typically used to override the standard GND or VCC attachments to particular pins of an IC 286 Preparing your Capture design for use with Layout To add Layout net properties to a net 1 Select a net on the schematic page 2 From the Macro menu choose Set Layout Net Se Layout Net Poet Properties The Set Layout Net Properties dialog box T eA appears ere ee Lancet 3 Enter values for those properties you want to add to nE the net then click OK NetWeight ReconnType The properties are added to the net See Table 3 Layout svasnyayer net properties on page 288 for a description and example Het value for each of the properties in the dialog box a Width WidthByLayer 287 Chapter 18 Using Capture with OrCAD Layout Table3 Layout net properties Property name Example value Description CONNWIDTH 10 Sets the track width leaving MINWIDTH and MAXWIDTH at their defaults HIGHLIGHT YES If the value is YES the net is highlighted MAXWIDTH 12 Sets the maximum track width MINWIDTH 8 Sets the minimum track width NETGROUP 2 Identifies grouped nets Use this to select or color nets as a group in Layout for
117. d Placing hierarchical blocks You create hierarchical designs using hierarchical blocks to represent child schematic folders When you create a hierarchical block you specify the name of the child schematic folder that the hierarchical block represents Once you ve created the hierarchical block you place hierarchical pins inside it to connect it to hierarchical ports on the child schematic folder s schematic pages To place a hierarchical block 1 From the schematic page editor s Place menu choose Hierarchical Block or Choose the hierarchical block tool on the schematic page editor s tool palette The Place Hierarchical Block dialog box appears Note In the Reference text box type the name of the hierarchical block Accept the Primitive setting of Default or choose Yes or No See Place Hierarchical Block dialog box on page 7 128 for more information If necessary click User Properties add or change property names and their associated values in the dialog box that appears then click OK Specify the type of implementation See Place Hierarchical Block dialog box on the next page for a description of implementation types Specify the name of the attached schematic folder VHDL entity netlist or project Specify the path and filename of the attached schematic folder VHDL entity PSpice entity netlist or project Click OK to close the Place Hierarchical Block dialog box Draw the hierarchica
118. d when opened in Capture To add a file to your project 1 In the project manager select the folder to which you want to add a file 2 From the Edit menu choose Project The Add File to Project Folder dialog box displays 3 Select the file you want to add and choose the Open button The file is added to the project Or 1 Drag the file from the Windows Explorer into the folder in the project manager To delete a file from a project 1 In the project manager select the file you want to delete 2 Press the key The file is removed from the project Working with files in a project Note You can also add files to your project interactively When you create a design using the New command on the File menu it is placed in the project manager s Design Resources folder Note You will not be given a chance to cancel this process after you press the key If you delete a file by mistake you will have to add it back to the project 49 Chapter 3 Starting a project Note To avoid overwriting a design file with a misnamed project file type in the filename without a file extension Capture automatically saves the file with the correct file extension Note To protect your work in the event of a system crash or power outage you can enable Auto Recovery and set the interval at which your design library or VHDL file is saved For information about the Auto Recovery option see Setting miscellaneous options on page 4 63
119. d squares You use the rectangle tool to create orthogonal shapes To create a square hold down the key before you begin drawing Any rectangles or squares you create will have the current fill style and line style To draw a rectangle or a square 1 From the Place menu choose Rectangle or Choose the rectangle tool on the tool palette Move the pointer to one corner of the intended rectangle Press and hold the left mouse button while you drag the mouse The rectangle changes shape as you move the mouse Release the left mouse button when you have the correct shape To draw a square hold down the key while you perform this step The rectangle displays in the selection color Choose the selection tool or press to dismiss the rectangle tool To resize a rectangle or square Use the selection tool to select a rectangle or square Edit handles appear on the four corners With the pointer on one of the handles press the mouse and drag the handle Drawing circles and ellipses Draw ing circles and ellipses You use the ellipse tool to draw a closed ellipse if you want to draw an arc use the arc tool To draw a circle hold down the key while you drag the mouse Because they are closed shapes circles and ellipses will have the current fill style They will also have the current line style To draw an ellipse or a circle 1 From the Place menu choose Ellipse or Choose the ellipse tool on the tool palette 2 Move
120. d symbols symbol then either choose Properties from the Edit menu or choose Edit Properties from the right mouse button pop up menu You can also double click the text This 123 Chapter 7 Placing editing and connecting parts and electrical symbols 124 displays a Display Properties dialog box Once you have finished editing the properties click OK Placing and editing no connect symbols A no connect symbol shown as an X attached to a pin causes unused pins to be ignored by reports such as Design Rules Check and netlists that show unconnected pins If a pin is connected the no connect symbol doesn t affect the pin They are pin properties Placing no connect symbols No connect symbols are placed on pins on a schematic page using the No Connect command on the Place menu or using the no connect tool on the schematic page editor s tool palette To place a no connect symbol 1 From the schematic page editor s Place menu choose No Connect or Choose the no connect tool on the schematic page editor s tool palette 2 Position the mouse over the pin end and click the left mouse button The end of the pin changes from a square unconnected to an X not connected This changes the pin property called Is No Connect from False to True and displays an X on the pin end Placing and editing no connect symbols Editing no connect symbols No connect symbols cannot be deleted using the key To remov
121. de child complex hierarchy convert cross probing DeM organ equivalent Glossary A bus entry is used to tie a signal to a bus The advantage of using bus entries instead of wires is that two bus entries can be connected at the same point on a bus without connecting the signals If two wires are run directly to a bus at the same location the signals are connected See also bus bus pin A pin width that can carry multiple signals as opposed to a scalar pin that only carries one signal A bus pin represents all the pins for a bus and they use the same naming conventions as buses See also bus bus entry An acronym for Commercial and Government Entity Code A number provided by the federal government to its suppliers that can be present in the title block of a schematic page In a hierarchical design a schematic folder whose circuitry is represented by a hierarchical block on the parent schematic page To move from parent to child is to descend the hierarchy A child contains circuitry referenced by its parent See also ascend descend parent A design in which two or more hierarchical blocks or parts with attached schematic folders reference the same schematic folder See also hierarchical design simple hierarchy An alternate form such as a DeMorgan equivalent that can be stored with each part See also DeMorgan equivalent When intertool communication is enabled in Express selecting objects in Express
122. default information 70 defining for new designs 70 settings 70 visibility 70 defining for new designs 74 tool palette part editor 20 147 IEEE Symbol command 24 Pin Array 24 Pin command 24 schematic page editor 20 147 Arc command 23 Bus command 21 Bus Entry command 21 Ellipse 22 Ground command 21 Hierarchical Block 22 Hierarchical Pin 22 Hierarchical Port 22 Junction command 21 Line command 22 Net Alias command 21 No Connect command 22 Off Page Connector command 22 Part command 21 Polyline command 22 Power command 21 Rectangle command 22 selection tool 21 Text command 23 Wire command 21 visibility 25 61 Tool palette commands 25 toolbar 16 Annotate command 18 Back Annotate command 18 Bill of Materials command 18 Copy command 17 Create Netlist command 18 Cross References command 18 Cut command 17 Design Rules Check command 18 Help Topics command 18 New command 17 Open command 17 Paste command 17 Print command 17 project manager tool 18 Redo command 17 Save command 17 snap to grid tool 18 Undo command 17 visibility 19 Zoom All command 18 Zoom Area command 17 Zoom In command 17 Zoom Out command 17 Index U Undo command 40 toolbar 17 undoing actions 40 Ungroup command 30 unit of measure defining for new designs 72 Update Cache command 199 Update Part References command 232 Update Properties command 232 dialog box 241 updating part refere
123. ders and schematic pages 102 Hierarchical blocks 0 0 0 0 0 000000 0c ee eee eee 102 Hierarchical ports lt lt ecse ie hed oh dee de CREE eS aS 103 Hierarchical pins s ot een en de eS eee CREE REE OSS 103 Off page connectors wade a POSE RRED BOR R Sa 104 An example creating a simple hierarchy 105 Placing editing and connecting parts and electrical symbols 109 Placing and editing parts lt gt 444 esd ee ee a 111 Placing Pals eet ahd She eee See Ee Rah Ea a eRe SEs 113 Place Part dialog box eierk amp a atin de OE 4 OA ee 4 115 Searching for parts 454 e ie hued eo eae tx Shed ye ee 117 Editing parts 205 40 es sie ae ee oa be eee OUR HES OE G 117 Placing and editing power and ground symbols 120 Placing power and ground symbols 120 Place Power and Place Ground dialog boxes 122 Editing power and ground symbols 123 Placing and editing no connect symbols aoaaa aaa 124 Contents Chapter 8 vi Placing no connect symbols nic oar due e ew ee dw be Oo 124 Editing no connect symbols tc 4 ees 48 eee dO Eee 125 Placing and editing hierarchical blocks 0 126 Placing hierarchical BIGCKS s lt s 4 lt oecnexes mex eae 126 Place Hierarchical Block dialog box 128 Editing hierarchical blocks lt 2 6264644648685 0508s 5 es 5 130 Placing and editing hierarchical ports and hier
124. dit the properties of multiple objects at once A power or ground object an off page connector a hierarchical port or a title block A dialog box that has different views that can be displayed by clicking on tabs at the top of the dialog box TrueType user defined property vertex wildcard X axis Y axis zoom zoom factor zoom scale Glossary A font typeface that appears in a printout exactly the way it appears on the screen TrueType fonts are scaleable to any font size and several of these type of fonts are installed automatically when you install Windows A property you add to an object Unlike inherent properties user defined properties can be removed See also inherent property The point at which the sides of an angle meet You create this by drawing a wire or line in one direction then changing direction to create an L shaped or V shaped wire or line A symbol usually used in searches that represents a missing or unknown character or sequence of characters In Express valid wildcard characters are an asterisk to match multiple characters and a question mark to match individual characters The horizontal or left to right direction in a two dimensional system of coordinates The X axis is perpendicular to the Y axis The vertical or bottom to top direction in a two dimensional system of coordinates The Y axis is perpendicular to the X axis To change the view of a window making the
125. ditor or from the project manager window Se 7 FULLADD FULLADD SCH OY x halfadd_A Cox halfadd_B lt ___ CARRY_OUT 74L 32 14DIP300 Figure5 Schematic page editor 11 Chapter 2 The Capture work environment For more information see The part editor tool palette on page 2 23 See Chapter 11 About libraries and parts for complete definitions of parts and packages See Chapter 12 Creating and editing parts fora complete description of the part editor 12 The part editor The part editor is used to create and edit parts fF FULLADD DSN 74L 32_0 Torx Figure 6 Part editor From the View menu of the part editor you can choose either Part or Package In Part view you can e Create and edit parts and symbols then store them in new or existing libraries e Create and edit power and ground symbols off page connector symbols and title blocks e Use the tool palette s electrical tools to place pins on parts and its drawing tools to draw parts and symbols Package view shows the entire package A package is a physical part that contains more than one logical part You can edit the properties of the entire package such as part reference prefix part alias and so on You cannot edit individual parts in this view but you can select individual parts to edit by double clicking on them The part editor is very similar to the symbol editor Th
126. dy be on Tip Capture can only paste text from the Clipboard via the Cut or Copy command Place the Windows applications into the Place Text pointer where you want the object to be pasted From the window and not directly onto the page Edit menu choose Paste The object is placed on the schematic page Deleting a selected object There are several ways to delete a selected object From the Edit menu choose Delete From the right mouse button s pop up menu choose Delete Press Delete Press Bksp 157 Chapter 8 Adding and editing graphics and text Note Because some printers and plotters do not interpret bitmaps correctly you should place one bitmap and print or plot it to ensure that the output is what you want before you place multiple bitmaps 158 Placing a bitmap You can create a bitmap in another application and place it on a schematic page on a library part or ina custom title block To place a bitmap 1 5 From the Place menu choose Picture A standard Open dialog box appears Select the bitmap file If the file is not listed in the File name text box a Inthe Look in drop down list select a new drive b Choose the Up One Level button Inthe Files of type box select the type of file you want to open Click OK A rectangle representing the bitmap image is attached to the pointer Click the left mouse button to place the bitmap at the desired location If you want to place
127. e 293 backslash in root module folder icon 7 99 bidirectional pin type 214 Bill of Materials command 231 232 265 toolbar 18 dialog box 267 include file format 269 bitmaps placing 158 plotting 93 resizing 158 Bookmark command 186 bookmarks jumping to 186 placing 186 properties 31 renaming 186 border visibility defining for new designs 74 Browse spreadsheet editor 32 Index copying values within 33 creating properties 33 removing user defined properties 34 Bus command 143 tool palette button 21 bus entries placing 144 Bus Entry command 144 tool palette button 21 buses editing 140 names 140 143 placing 140 user defined properties 31 C CAPSYM OLB 104 Capture SDT Compatibility 80 CAPTURE INI 116 character formatting 165 circles drawing 151 resizing 151 Clear Session Log command 14 Close Project command 51 colors defining for graphics 63 defining for objects 57 defining for VHDL syntax 66 defining preferences 56 commands Annotate 18 Arc 23 Back Annotate 18 Bill of Materials 18 Bus 21 Bus Entry 21 Clear Session Log 14 Close Project 51 Copy 17 Create Netlist 18 Cross References 18 Cut 17 Design Properties 53 Design Rules Check 18 Design Template 53 Ellipse 22 Exit 51 Export Design 274 324 Export Properties 276 Find 14 Ground 21 Group 30 Help Topics 18 Hierarchical Block 22 Hierarchical Pin 22 Hierarchical P
128. e main difference between the two is the symbol editor s lack of Pin and Pin Array tool palette buttons The Programmer s editor The Programmer s editor Use the Programmer s editor to create or view VHDL files or other text files within Capture VHDL keywords and comments are displayed in the colors you specify in the Text Editor tab in the Preferences dialog box from the Options menu choose Preferences ig bitbcd yhd Iof x LIBRARY IEEE USE IEEE std_logic_1164 all ENTITY FDE IS PORT D IN std_logic E IN std_logic CLK IN std_logic C IN std_logic Figure 7 Programmer s editor To create a new VHDL file in the Programmer s editor 1 From the File menu choose New then choose VHDL File A blank VHDL file appears in the text editor To open a VHDL file in the Programmer s editor 1 From the File menu choose Open then choose VHDL Note Designs and parts of designs can be File The Open VHDL File dialog box appears VHDL based instead of schematic based 2 Select a file then click OK OrCAD Express provides a complete design O solution for targeting PLDs For more T information on editing VHDL files in the 1 In the project manager select a VHDL file text editor see Chapter 4 Creating VHDL models and paramertized parts in the 2 Click the right mouse button and choose Edit from the OrCAD Ex i User s Gui i pop up menu 13 Chapter 2 The Capture work environment The session log
129. e Macro dialog box choose Play Configuring a macro After you record a macro you give it a name and you can also assign it a menu entry a shortcut key definition and a description Once you give a macro a name and save it it automatically displays in the Macro name list box in the Configure Macro dialog box the next time you run Capture The text you enter as the menu entry displays on the Macro menu along with the macro s shortcut key definition if you specified one The text you enter as the description displays in the Description text box in the Configure Macro dialog box when you highlight the macro name To configure a macro 1 From the schematic page editor s Macro menu choose Configure The Configure Macro dialog box appears 2 If the macro you want is not selected select it 3 Inthe Macro Name text box enter a name for the macro and click the Save button The Macro Name dialog box appears 4 To assign a shortcut key enter text corresponding to a shortcut key or key combination for example Ctrl 7 in the Keyboard Assignment text box 5 To have the macro appear as an entry on the Macro menu enter the appropriate text for example Wirenames in the Menu Assignment text box 6 To describe the macro enter the appropriate text in the Description text box 7 Click OK The Save As dialog box appears 8 Select a file location and filename click the Save button then click the Close button Configur
130. e The shape of the pins in the array as described in Place Pin dialog box on page 12 212 Type The type of the pins in the array as described in Place Pin dialog box on page 12 212 Pins Visible This Options is available only for power pins If this option is selected the pins are visible when the part is placed on the schematic page Otherwise the pins are not visible on the schematic page 219 Chapter 12 Creating and editing parts Note If you connect the same pin on multiple parts in a package you can inadvertently short two nets Use care to avoid this and always run Design Rules Check before creating a netlist 220 About power and ground pins Both homogeneous and heterogeneous parts may have shared pins A common use of shared pins is for supply pins power or ground which are referred to in Capture as power pins Normally power pins are invisible and global meaning that they are connected to like named power objects power nets and invisible power pins throughout the design Merely displaying an invisible power pin does not change its global nature however connecting a wire or other electrical object to a power pin isolates it from the design wide global net For information on displaying invisible power pins see Displaying invisible power pins on page 12 221 On heterogeneous parts power pins usually do not appear on every part in the package If you make the power pins visible you must place th
131. e a no connect symbol place another no connect symbol on top of the existing no connect symbol You can temporarily override a no connect symbol by attaching a wire to the pin but if you delete the wire you ll again be able to see the no connect symbol 125 Chapter 7 Placing editing and connecting parts and electrical symbols Si FULLADD FULLADD SCH i l E3 halfadd_A CARRY_IN Figure 46 Hierarchical block For information on connecting hierarchical designs using hierarchical blocks hierarchical ports and hierarchical pins see Connecting schematic folders and schematic pages on page 126 Placing and editing hierarchical blocks Hierarchical blocks or parts with attached schematic folders refer to child schematic folders in a project providing vertical downward connective connection only Hierarchical pins in a hierarchical block and hierarchical ports outside a hierarchical block act as points of attachment for any electrical connections between the hierarchical block and other electrical objects in an attached schematic folder A part with an attached schematic folder functions like a hierarchical block and pins on a part with an attached schematic folder function like hierarchical pins within a hierarchical block You can use either method to define a hierarchy The only difference between the two methods is that a part with an attached schematic folder can be more easily reuse
132. e awe Eee 175 Assigning a shortcut key toamacro 0 0 0000048 177 Sample macios aoea oe Bee OS SERRE SSS EEE eH EEA 178 Changing your view of a schematic page 179 ZOOMIN 6 od Oo w ES oa Re BS ee DRA Ee eee a es 180 Zooming to a specified scale 2 v4 4 ea hee RS RR RES 181 Other viewing options 6 459 aad oR Oe ae eRe we Re eS A 181 Moving to a new location 3 2 aoe en a ee a 183 Moving to an X Y location aaa aaa edu tienes 183 Go To dialog box Location tab aoaaa aaa a 184 Jumping to a specific grid reference oaoa 185 Go To dialog box Grid Reference tab aoao aaa 185 Jumping to a marked location o oo a 186 Go To dialog box Bookmark tab aoaaa aaa aa 187 Displaying the grid and grid references 0000 188 Finding parts in a project e deees See ewe bees ee ew ORG 189 Libraries and parts About libraries and parts 193 Libraries c g does a eerie oh feos eerie a oe a ea Ges ee ee 194 Parts a meaa Geshe ea E ae a Ss et ee Be a ee 195 Part instances and occurrences 00000 ee eae 196 Contents Chapter 12 Part Four Chapter 13 Chapter 14 viii The design cache lt 4 cae eh eee die OR 6 Ke ESKER OS Ee 197 Primitive and nonprimitive parts 6 eee Gee a ee EV Be 200 Creating and editing parts 201 Parts and packages homogeneous or heterogeneous 202 Creating anew part 2uo ekaeectdeibea i 8He 5 EGaER ES 203 Defining paf s r 4 sere acs oe yp A
133. e case insensitive compares I Convert the update property to uppercase I Unconditionally update the property normally only updated if empty Do not change updated properties visibility Wake the updated property visible Wake the updated praperty mavisible I Create a report file Report Fle Browse c program files orcad capture designs fulladd fulladd Property Update File Je program files orcad capture designs fulladd fulladd Browse Figure 67 Update Properties dialog box Scope Specifies whether to process the project or what is selected Mode Specifies whether to update the instance properties of the parts or nets or occurrence properties of the parts or nets The preferred mode is set automatically by Capture and depends on the type of project you are using Update parts or Update nets Specifies whether to update the properties of parts or nets Use case insensitive compares Matches the combined property string with update properties without regards to case sensitivity 241 Chapter 14 Preparing to create a netlist 242 Convert the update property to uppercase Converts the update property to uppercase before it is placed in an object s property Unconditionally update the property By default a property is updated only if it is empty properties with values are not updated If this option is selected the specified property is changed regardless of whether it s
134. e folder 6 design folder 6 Design Resources 45 46 275 Design Resources folder 6 Library 275 Library folder 6 Outputs folder 6 schematic folders 6 schematics 43 fonts changing placed text 165 defining for existing designs 80 defining for new designs 69 defining for VHDL syntax 66 project manager 63 screen 166 session log 63 TrueType 63 footprint 119 261 291 format files netlist 262 forward annotation 294 G Gate and Pin Swap command 232 global power pins 82 globals 119 214 220 Go To command 183 dialog box Bookmark tab 187 Grid Reference tab 185 Location tab 184 Grid command 188 grid display dots or lines 58 setting visibility 58 snap to grid 58 grid references defining for new designs 74 displaying or hiding 188 Grid References command 188 grid spacing defining 72 Ground command 121 tool palette button 21 Index ground pins 220 ground symbols placing 124 Group command 30 grouping 30 H Help Topics command toolbar 18 heterogeneous package 195 200 202 Hierarchical Block command tool palette button 22 hierarchical blocks attached implementation 126 129 complex hierarchical designs 101 hierarchical designs 99 nets between schematic folders and schematic pages 102 placing 130 simple hierarchical designs 99 user defined properties 31 hierarchical designs 99 complex 101 hierarchical blocks 99 simple 99 Hierarchical Pin command 133 tool pa
135. e parts in the package have the same graphical representation homogeneous or different graphical representations heterogeneous Alphabetic or Numeric If the part is a multiple part package this specifies whether parts in the package are identified by letter or number For example e U A alphabetic e U 1 numeric usually used for connectors Caution If you use Alphabetic identifiers you are limited to 26 parts per package that will use letters Parts with more than 26 parts will use numbers as identifiers instead of doubling up the letters asin AA AB and so on Part Aliases Displays a dialog box that you use to add or remove part aliases which are duplicate copies of parts that use different names in a library Part aliases use the same graphics attached schematic folders and properties as the originals with the exception of the part values Attach Implementation Displays a dialog box that you can use to attach a schematic folder VHDL entity netlist project or PSpice model thus creating a hierarchy Creating a new part See Capture s online help for more information on creating and using heterogeneous parts Note The path and filename of the library that contains the part are displayed at the bottom left corner of the dialog box Tip When you view a list of parts in a library any parts that are placed via part alias display with lines through their centers Note An attached schematic folder or oth
136. e pin array is longer than the edge of the part body the part body border expands to accommodate the extra pins Once you place an array of pins you can edit their properties as a group by selecting the pins then choosing Properties from the Edit menu This opens the spreadsheet editor which you can use to edit the information for the pins Creating a new part 217 Chapter 12 Creating and editing parts 218 Place Pin Array dialog box Place Pin Array x Starting Name Shape E Line Starting Number Type Cancel Number of Pins J Increment fi Iv Fins Visible Pin Spacing 1 Figure 62 Place Pin Array dialog box Starting Name The name of the first pin in the array If the name ends with a digit 0 9 each pin in the array is incremented by the value specified in the Increment text box For a name with a bar over it indicating negation type a backslash character after each letter you want a bar over For example type R E S E T to define the name RESET Starting Number The number of the first pin in the array Each pin in the array is incremented by the value specified in the Increment text box Number of Pins The number of pins in the array Inq ement The number by which to increment the pin name if it ends in a digit and pin number for each pin in the array This can be a negative number Creating a new part Pin Spacing The number of grid units between each pin in the array Shap
137. e project manager To print or plot a part or package 1 Select the part or package you want to print in the schematic page editor or Select the library part in the project manager 2 Click the right mouse button in the project manager and choose Edit Part from the pop up menu The part appears in the part editor 3 From the part editor s View menu choose Part to print a part or choose Package to print a package 4 From the File menu choose Print The Print dialog box appears 5 Select the scale the print quality and the number of copies 6 Click OK to send the image to the output device 89 Chapter 5 Printing and plotting 90 Printing the session log and text editor windows With the text editor window or session log active you can print the contents of the window To print a text editor window 1 Make the text editor the active window 2 From the File menu choose Print The Print Range Selection dialog box appears 3 Select whether to print highlighted text or the entire file 4 Click OK to send the text to the output device To print the session log 1 Make the session log the active window 2 From the File menu choose Print The Print dialog box appears 3 Click OK to send the text to the output device Previewing printer or plotter output Preview ing printer or plotter output Using the Print Preview command you can preview your schematic page part or package output to check its
138. e the dialog box you cannot add or delete the convert view Note Once the number of parts in a heterogeneous part is set it cannot be changed 206 New Part Properties dialog box fu Cancel Part Aliases Attach Implementation Part Reference Prefix PCB Footprint T Create Convert View Multiple Part Package Parts per Pkg fi Help Package Type Part Numbering Homogeneous Alphabetic C Heterogeneous C Numeric IV Pin Number Visible C PROGRAM FILESSORCAD CAPTURESLIBRARY3 0LB Figure 60 New Part Properties dialog box Name The name of the part This is used as the default part value when the part is placed on a schematic page Part Reference Prefix Specifies the part reference prefix such as C for capacitor or R for resistor PCB Footprint The PCB physical package name to be included for this part in the netlist OrCAD Layout uses this field to place the correct components on the printed circuit board Create Convert View Some library parts have a second form such as a DeMorgan equivalent as well as the standard representation Select this option to give the part a alternative view If a part has a convert view you can switch between the part s normal and convert views once the part is placed on a schematic page Parts per Pkg Specifies the number of parts in the package Homogeneous or Heterogeneous If the part isa multiple part package this specifies whether all th
139. e to connect these pins to a net If you want a power pin to be visible on the schematic page and global in nature set it to invisible in the library After placing the pin double click on the part and set power pins to be visible Note Power pins that are invisible are not connected using wires and buses but instead are connected globally via name 215 Chapter 12 Creating and editing parts Fi Note Pin name and number only increment if the starting name or number ends with a number Otherwise all of the pins in the array have identical names or numbers Note You can specify a negative increment to decrement instead of increment the pin numbers Tip For easy accurate placement of pins confine the movement of your cursor to the part body border 216 To place several pins at once 1 From the part editor s Place menu choose Pin Array or From the part editor s tool palette choose the pin array tool The Place Pin Array dialog box appears This dialog box is similar to the Place Pin dialog box with these exceptions e The Starting Name and Starting Number text boxes are used to specify a name and pin number that is incremented for each pin that is placed e The Number of Pins Increment and Pin Spacing text boxes are used to specify how the pins are placed In the Starting Name text box enter the name of the first pin If the pin name ends in a digit 0 9 subsequent pin names in the array will
140. eck dialog box ERC Matrix tab 250 Sample Design Rules Check report 0 251 Back annotating 56k ee ee bbe eee ee RE REESE COE SRR 254 Back Annotate dialog bOX 4 24 3 2G side dw eee ow RES 255 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Contents Swap file format 6 sa ves ee ew Rw eee CG ww Os 256 Creating a netlist 259 Using the Create Netlist tool 5 lt lt 26 2644 245430 26 eee Ge 259 Netlist format files 2 0 0 0 0 0 00000 2 eee ee ee 262 Netname resolution 0 0 000 a ee eee eee 263 Creating reports 265 Creating a bill of materials 14 6i8s ben bee enue dee dawns 265 Bill of Materials dialog box 2 65 ee a Re RG RO 267 Include file format 0 0 00 00 ee nr kras 269 Creating a cross reference report 2 vn aba SR eee eee ee eS 270 Cross Reference Parts dialog box 4 271 Exporting and importing schematic data 273 Exporting and importing designs aoaaa a 273 Fxportingdesigns ss io sw wa soa o a RR EY a a RA 274 Importing designs aoaaa eked ean thee s 275 Exporting and importing properties 2 bbe a 276 Exporting properties 2 6 beh ace Soke eee ke DRESSY S 276 Property fil format o s ssie e ete owe ee ee SE Ces 277 Editing a property file ve tee ede Rees hae EEN EEE eS 278 Importing properties 4 lt s lt se pes ndea eae daeage ee ays 279 Using Capture with OrCAD Layout 281 Preparing your Capture design for
141. ect a part or net on a Capture schematic page or Layout board and the Chapter 18 Using Capture with OrCAD Layout Note Layout uses reference designators as identification for forward and back annotation For this reason all changes to reference designators must be made in Layout and back annotated to Capture Similarly if you change existing reference designators in your Capture design and forward annotate them into your Layout board your board will no longer be usable 282 corresponding object in the other application is highlighted Moving a design from Capture into Layout is a three part process e Create a valid Capture design with footprints that Layout supports e Generate a netlist in the Layout format e Create a Layout board file You can also transmit information concerning parts nets and pins by creating user defined properties on the parts nets or pins Maintaining the integration between your Layout board and your Capture design requires that you periodically perform these tasks e Create an OrCAD Backannotation File SWP in Layout e Perform a back annotation in Capture using the back annotation file e Use Layout s AutoECO command to forward annotate any edits you make in your Capture design into Layout When you add new parts to your Capture design use the Incremental reference update option in the Update Part References dialog box as opposed to the Unconditional reference update opti
142. ected to more than one net halfadd_B U4A 3 Nets N00037_179 and N00037 EX6B EX6B SCH 5 20 3 20 Checking Electrical Rules Checking for Invalid References Checking for Duplicate References Checking Electrical Rules Checking for Invalid References for Duplicate References g DRCO010 Duplicate reference halfadd_B U2C EX6B H 3 30 2 20 Q c r T icate reference halfadd_B U2D EX6B B SCH 3 80 2 40 0010 Duplicate reference halfadd_B U3D EX6B SCH 4 30 1 80 010 Duplicate reference halfadd_B U4A EX6B SCH 4 30 3 00 010 Duplicate reference halfadd_B U4B EX6B SCH 5 50 3 70 010 Duplicate reference halfadd_B U1C EX6B SCH 5 50 2 40 252 Checking for design rules violations Checking Schematic FULLADD Checking Electrical Rules Checking for Invalid References Checking for Duplicate References 253 Chapter 14 Preparing to create a netlist Note The Back Annotate tool passes through all the parts pins and nets of the design once As each is encountered a search is made in the swap file for a match When a match is found the part pin or net property is updated 254 Back annotating Using Back Annotate you can import changes created by external tools such as a PCB layout application Capture uses a simple file format see Swap file format on page 14 256 to
143. ects and for schematic pages you add to an existing project You can override some of these options for individual projects or schematic pages Some of the things you can define in the Design Template dialog box are 68 Fonts You can define the fonts for schematic page objects that contain text such as part references and values Title Block You can specify the text to appear in title block fields as well as the path and filename of the library containing the title block This affects new projects as well as new schematic pages in existing projects Page Size You can specify whether inches or millimeters are used as the unit of measure the width and height of a schematic page and the spacing between pins Grid Reference For horizontal and vertical border grid references you can set the number of border grid references to display in either direction whether the grid references are alphabetic or numeric whether they increment or decrement across the schematic page and how wide grid reference cells are You can also make the border grid references and title block visible or invisible This affects new projects as well as new schematic pages in existing projects Hierarchy For hierarchical blocks and part instances that have their Primitive property set to Default you can specify if you want Capture to treat each as primitive cannot descend into attached schematic folders or nonprimitive can descend into attached s
144. ed in the Libraries list box that match the name of the power symbol are listed in the box below the Power Symbol text box When you select a symbol from this box its graphic image appears After you locate the power symbol you want to place click OK An image of the power symbol is attached to your pointer You can press the right mouse button to display a pop up menu with commands to change the attributes of the power symbol before you place it You can mirror the power symbol horizontally or vertically or rotate it Move the pointer to the location on your schematic page where you want the power symbol and click the left mouse button This places the power symbol on your schematic page You can place multiple instances of the power symbol by clicking the left mouse button each place you want an instance of the symbol When you are done placing power symbols choose End Mode from the right mouse button pop up menu or press Esc To place a ground symbol Follow the instructions in the previous section To place a power symbol on page 7 120 but substitute the Ground command or the ground tool in the appropriate places Placing and editing power and ground symbols Note All objects that you can place on a schematic page have right mouse button pop up menus These menus are context sensitive meaning they display commands that are appropriate for the selected object For information about the commands on a pop up menu
145. editing or routing NETWEIGHT 60 Integer between 1 and 100 assigning relative priority to the net The default value is 50 RECONNTYPE ECL Specifies the reconnect rules for each type of reconnect Values are STD HORZ VERT MIN MAX or ECL SPACINGBYLAYER TOP 13 Net spacing for one BOT 8 or more layers TESTPOINT YES If the value is YES a test point is automatically assigned to the net 288 Preparing your Capture design for use with Layout Table3 Layout net properties continued Property name Example value Description THERMALLAYERS GND Comma delimited list assigning the net to specific plane layers VIAPERNET VIA1 Via types allowed for net WIDTH 12 Track width value assigned to the MINWIDTH MAXWIDTH and CONNWIDTH properties unless overridden WIDTHBYLA YER TOP 6 Net width for one BOT 12 or more layers To add Layout pin properties to a pin 1 Select a pin on the schematic page 2 From the Macro menu choose Set Layout Pin Properties The Set Layout Pin Properties dialog box aos cone appears ECLType Tin 3 Enter values for those properties you want to add to the pin then click OK The properties are added to the pin See Table 4 Layout pin properties on page 290 for a description and example value for each of the properties in the dialog box 289 Chapter 18 Using Capture with OrCAD Layout Table4 Layout pin properties
146. ee 148 Configure Macro dialog box ee amp ee 4 ok a ak es OLS ERE 172 Location tab of the Go To dialog box 204 184 Grid Reference tab of the Go To dialog box 185 Bookmark tab of the Go To dialog box 4 187 Replace Cache dialog box se ce eese Faw de ON aR ERE 198 New Part Properties dialog box 044 duck eas CH eho ee das 206 Place Pin dialog box ss eee eww eee SORE SEE ASH BH ER 212 Place Pin Array dialog box 4c 645458 aoc 4 66 oS Rew a eX 218 Part editor in Package View sis ses eas ee ee woe hae be ees 225 Before annotation 6 iuk v ade se ae ed ER ee ee Hew eee S 236 After annotation 2 oe 6s HS COS KA REM ERD OH ERED SE HH OH 236 Annotate dialog box 4 x a 4 ER Pe SRW ee RR SY 237 Update Properties dialog box o oo 241 Design Rules Check tab of the Design Rules Check dialog box 247 ERC tab of the Design Rules Check dialog box 250 Back Annotate dialog box 2 eac4e44 es 4 a es eek ee ee SO 255 Create Netlist dialog box 2440224 4 bee xe 82 S248 Oe De 2 260 Bill of Materials dialog box 66s 6 see eee ee eRe eR RO ee 267 Cross Reference Parts dialog box s 1 40G5 ses ee ea eee RS 271 Figure 74 Figure 75 Figure 76 Figure 77 Figures Export Design dialog box 2 vcs eae eb ee Oe wee Ree Ew RS 274 Import Design dialog box 204454 cea eed ee ew KE Rs 275 Export Properties dialog box 424 4 iv eiegiaw a 277 Import Properties dialog box
147. elected Scale 100 3 00 Y 1 50 Note When a session log or a project manager window is active the center field of the status bar doesn t display 26 Figure 12 The status bar Left field The left field displays descriptions of selected tools or menu items prompts or the current status Center field The center field displays the number of items selected in the schematic page editor or part editor Right field The right field displays the current scale and pointer location such as Scale 50 X 10 0 Y 5 0 The location in the schematic page editor is measured in either inches or millimeters depending on the Units settings in the Page Size tab in the Schematic Page Properties dialog box The location in the part editor is measured in grid units The status bar Displaying or hiding the status bar You can hide the status bar then display it again when you need it To display or hide the status bar 1 From the schematic page editor s View menu choose Status Bar or From the part editor s View menu choose Status Bar 27 Chapter 2 The Capture work environment Note You can edit the properties of a group of objects using the property editor See The property editor on page 35 Use the following steps to change the selection color 1 from the Options menu choose Preferences then choose the Colors tab 2 Click the left mouse button over the Selection color 3 Select a new color from the co
148. em on at least one part in the package then place that part in the design and connect wires to those pins in order for the power connections to appear in a netlist On homogeneous parts power pins appear on every part in the package The pin names are filled in automatically but you must specify the pin numbers To share the pins make sure that the pin names and the numbers are the same for every part in the package Displaying invisible power pins You can display power pins on individual part instances or throughout a design Merely displaying invisible power pins on the schematic page does not change their global nature The method you choose to display power pins determines whether you can connect to them Invisible power pins are always displayed in the part editor To display invisible power pins on a part instance 1 2 3 4 In the part editor select a power pin From the Edit menu choose Properties The Pin Properties dialog box appears Select the Pin Visible option Click OK To display invisible power pins throughout a design 1 2 From the project manager s Options menu choose Design Properties then choose the Miscellaneous tab Select the Display Invisible Power Pins for documentation purposes only option then click OK About power and ground pins Zero length power pins will only display their names and numbers There won t be an obvious point of connection If you want to wire to a
149. entered in the Part text box If more than one library is selected the part name is followed by a slash and a library name When you select a part in this list its name displays in the Part text box and its graphic displays in the preview box 115 Chapter 7 Placing editing and connecting parts and electrical symbols Note If you selec an SDT 386 or SDT Release IV library from the dialog box that appears when you choose Add Library Capture automatically translates the file after you speafy the name of the new Capture library 116 Libraries Lists the library names currently available All parts in the selected libraries that match the Part text box display in the Part list To select more than one library press while you click the mouse Graphic You can choose the view of the part Normal or Convert Some parts have a Convert view that is used for things such as a DeMorgan equivalent of a part Packaging Parts per package indicates the number of parts in the package you are editing Part indicates which part of a multiple part package you are placing Preview box Displays the graphic of the selected part Add Library Displays a standard Open dialog box that you can use to locate a library and add it to the Libraries Remove Library Removes the selected libraries from the Libraries list Part Search Opens the Part Search dialog box so you can search for a part in all the libraries listed in a particular directory
150. er Homogeneous or Heterogeneous and click OK to close the New Part Properties dialog box the package type is set and cannot be changed B LIBRARY1 NEWPART Note For general information about adding graphics and text and detailed information about placing IEEE symbols see Adding graphics text and IEEE symbols toa part on page 209 For details about each of the graphic and text tools see Chapter 8 Adding and editing graphics and text 204 In the Name text box type a name for the part you are creating You can use the default settings for the other options on this dialog box or you can change them to fit your requirements For example if this part is a multiple part package enter the number of parts in the package All fields on the New Part Properties dialog box are described later in this section When the part is specified to your requirements click OK The part editor window appears showing a dashed outline which is the part body border Pins will be placed on the part outside of this region touching the part body border The part s value displays below the part and the part s reference displays above the part The part editor window s title bar shows the name of the library followed by the name of the part you are creating To change the size and shape of the part body border select the border and drag the selection handles until the part body border is the size you want You can resize the par
151. er file external to the project or library is not stored with the project or library If you copy or move the project or library to anew location you must also move or copy the attached object to keep them together In addition you may need to edit the path to the attached schematic folder or file if you move the project to a new location with a different directory structure 207 Chapter 12 Creating and editing parts Note Library parts part instances part occurrences and hierarchical blocks can have attached schematic folders This section provides information about attaching a schematic folder to a library part This information also applies however to part instances part occurrences and hierarchical blocks Note For more information about the primitive and nonprimitive settings see Primitive and nonprimitive parts on page 200 Tip To define a part instance as nonprimitive double click on it then set the Primitive option to No in the Edit Part dialog box In this way you can also set whether or not to descend the hierarchy on an occurrence by occurrence basis Part instances with their Primitive property set to Default can be changed to primitive or nonprimitive on a project wide basis using the Design Template or Design Properties commands on the Options menu Choose the Hierarchy tab select either Primitive or Nonprimitive in the Parts group box then click OK 208 Attaching a schematic folder to a part
152. er the part is homogeneous or heterogeneous Once you provide this information you can draw the part place graphics and place pins To define a new part 1 Inthe project manager select the library you want to add the new part to 2 From the right mouse button s pop up menu choose New Part The New Part Properties dialog box appears See New Part Properties dialog box on page 12 206 Creating a new part Note If you re creating a multiple part package the part editor window contains the first part in the package If you are creating a homogeneous part all edits you make to this part with the exception of changes to pin numbers apply to all parts in the package If you are creating a heterogeneous part edits you make to this part apply to this part only To edit a different part in the package choose Next Part or Previous Part from the View menu To view all the parts in the package choose Package from the View menu You can edit a part by double clicking on it in the package view To view all of the package information choose Package from the View menu then choose Properties from the Edit menu The Package Properties spreadsheet appears showing the order of the pins the groups of pins that are swappable the pin numbers the pin names the pin types normal or convert and whether the pins are marked as Ignore 203 Chapter 12 Creating and editing parts Note Once you designate the package type as eith
153. erarchical pin inside a hierarchical block and connects laterally to like named nets in the same schematic page and hierarchical ports within the same schematic folder Hierarchical pins Hierarchical pins provide vertical downward pointing connections only You connect them by name to hierarchical ports on schematic pages in an attached schematic folder Think of hierarchical pins as bringing a net up from an attached schematic folder into the hierarchical block but not out onto the schematic page In the figure shown X Y SUM and CARRY represent hierarchical pins Connecting schematic folders and schematic pages M DESIGN1 PAGE1 BEE lt gt PORTBOTH L PORTBOTH R lt 8 PORTLEFT L PORTLEFT R lt PORTNO L PORTNO R PORTRIGHT L PORTRIGHT R C halfadd_A HALFADD SCH a 103 Chapter 6 Design structure Si DESIGN1 PAGE1 G lt OF FPAGELEFT L BEE OFFPAGELEFT R lt 104 Off page connectors Off page connectors provide connection between schematic pages within the same schematic folder An off page connector is connected by name to other off page connectors within the same schematic folder Like named off page connectors in different schematic folders are not connected An example creating a simple hierarchy An example creating a simple hierarchy As described earlier in this chapter you connect schematic folders and schematic pages
154. etic or numeric whether they increment or decrement across the schematic page and how wide the grid reference cells are You can also make the border grid references and title block visible or invisible e Miscellaneous You can view information about the schematic page such as creation time modification time and page number Changing page size For existing schematic pages you can change the unit of measure from Inches to Millimeters or select a different page size Since the width and height for each page size except Custom and the pin to pin spacing are set in the Design Template Page Size tab you cannot change these particular items in the Schematic Page Properties Page Size tab You can access the Schematic Page Properties dialog box by choosing Schematic Page Properties from the schematic page editor s Options menu See Setting the schematic page size for new projects on page 4 72 for more information Changing properties of existing schematic pages You can override other Design Template options fonts hierarchy and SDT compatibility using the Design Properties dialog box For further information see Changing properties of existing projects on page 4 79 83 Chapter 4 Setting up your project 84 Setting up new grid references Horizontal and vertical border grid references for new schematic pages are set up in the Grid Reference tab of the Design Template dialog box You can change these settings for
155. example of how changes are specified in a was is file generated by PCB 386 256 Swap file format A swap file is an ASCII text file containing old and new part references A swap file is typically created by another application such as OrCAD Layout You can also create a swap SWP file using a text editor that can save the file in ASCII format The file can include comments any text to the right of a semicolon is ignored by the Back Annotate tool Each line in a swap file unless preceded by a semicolon causes one action The elements of each line may be separated with any number of space or tab characters In general the first element of the line specifies the type of swap If no swap type is specified CHANGERFF is assumed The other swap types are GATESWAP PINSWAP and CHANGEPIN The following example illustrates a swap file The comments to the right of the semicolons describe what the swap file will do CHANGEREF U1 U2 Change part reference Ul to U2 U1C U2C Change part renerence UIC to U2C GATESWAP U1 U2 Swap parts U1 and U2 GATESWAP U1A U1B Swap gates UA and U1B CHANEGPIN U7 1 2 Change pin 1 to pin 2 CHANGEPIN U7 2 1 Change pin 2 to pin CHANGEPIN U5B DO D1 Change pin named DO to D1 CHANGEPIN U5B D1 DO Change pin named D1 to Do Note that there are two CHANGEPIN commands for each pin swap If you entered just one line to change pins for example CHANGEPIN U
156. f the part choose Normal from the View menu Viewing a part s convert Note If you re editing a part that doesn t have a convert view the Convert command is not available Note In the package properties spreadsheet both normal and convert views of a part are displayed when a convert view exists 227 Chapter 12 Creating and editing parts 228 Part Four Processing your design Chapter 13 About the processing tools provides general guidelines for processing your design and describes when to use Capture s different processing tools Chapter 14 Preparing to create a netlist describes the tools you use to prepare a design for creating a netlist It describes the Annotate Update Properties Design Rules Check and Back Annotate tools Chapter 15 Creating a netlist explains how to create a netlist using the Create netlist tool Chapter 16 Creating reports explains how to create reports using the Bill of Materials and Cross Reference tools Chapter 17 Exporting and importing schematic data describes the Export Properties and Import Properties tools used to move data into and out of Capture Chapter 18 Using Capture with OrCAD Layout explains how to perform forward annotation back annotation and cross probing using Capture and Layout Chapter 19 Using Capture with OrCAD PSpice describes intertool communication between Capture and PSpice and explains how to use this feature to debug your C
157. firmation that the items are electrically connected If you draw a wire across another wire at a 90 degree angle the wires are not electrically connected unless you create a junction by clicking the left mouse button on the existing wire as you draw the new wire across it A collection of often used parts graphics schematic pages and symbols An X Y coordinate on a schematic page or part You can move to a location using the Go To command on the View menu in the schematic page editor A series of commands you can record then execute by pressing one key or a combination of keys Macros greatly reduce the number of keystrokes required to perform complex or repetitive actions To flip along the X horizontal or Y vertical axis or both A net with more than one net alias where you choose which net will be used in the netlist The wires buses parts and symbols that are logically connected via net names aliases off page connectors and hierarchical ports net alias netlist nonprimitive occurrence occurrence property off page connector package pan Glossary A name used to specify signal connections between unconnected wires or buses For example if you have wires in two remote locations in a schematic folder you can assign each wire an alias such as ABC to connect the signals without physically drawing a wire between them A file that lists the interconnections of the project components by the na
158. font style and size Click OK to dismiss the font dialog box 4 Click OK 69 Chapter 4 Setting up your project Defining title block information There are two types of title blocks default and optional You specify the information that goes into the default title block in the Title Block tab of the Design Template dialog box Capture places a default title block in the lower right corner of each schematic page if a library and title block name are specified and places the information you enter in the text fields in the Title Block tab into the title block This information is also used in reports created by the commands on the Tools menu This affects new projects as well as new schematic pages in existing projects You can set the default title block to be visible or invisible on an existing schematic page by changing the setting in the Grid References tab in the Schematic Page Properties dialog box You can place any number of optional title blocks anywhere on the schematic page using the Title Block command on the Place menu Optional title blocks display information that you define as property values for the title block symbol Design Template x cl Page Size Grid Reference Hierarchy SDT Compatibility EE Organization Name OO Organization Address 1 fo Organization Address 2 PC O Organization Address 3 PC O Organization Address 4 fo Document Number O Revision CAGE Code siz r Sy
159. fter you place it Place Hierarchical Port dialog box Symbol Po RTBOTH L Cancel PORTBOTH R __ Add Library __ Add Library i K PORTEOTHL 3 _Bemove Library aa Heo Libraries Name PORTBOTHL Figure 49 Place Hierarchical Port dialog box Symbol Specifies the hierarchical port symbol to use If you aren t sure of the exact name of the symbol you can enter wildcard characters to constrain the list of symbols then click OK Valid wildcard characters are an asterisk to match multiple characters and a question mark to match a single character The names of all symbols in the selected libraries that match the wildcard appear in the Symbol list box Symbol list Lists the names of all symbols in the selected libraries that match the text entered in the Symbol Placing and editing hierarchical ports and hierarchical pins text box If more than one library is selected the symbol name is followed by a slash and a library name When you select a part in this list its name displays in the Symbol text box and its graphic displays in the preview box Libraries Lists the library names currently available Select the libraries from which to select symbols All symbols in the selected libraries that match the Symbol text box display in the Symbol list To select more than one library press while you click the mouse Preview box Displays the graphic of the selected symbol Name Specifies the sym
160. functional parts To meet department specifications Capture offers two ways of handling multiple page designs a flat design structure and a hierarchical design structure Chapter 6 Design structure Schematic Page A Schematic Page B Sohematio Page gt YH lt ro p B Test_opj 98 Atest dsn iE SCHEMATIC1 E PAGE PAGE2 H Design Cache Library Outputs Flat designs Flat designs are practical for small designs with few schematic pages A flat design is a structure in which the output nets of one schematic page connect laterally to the input nets of another schematic page in the same schematic folder through objects called off page connectors A flat design has no hierarchy no hierarchical blocks hierarchical ports hierarchical pins or parts with attached schematic folders The structure of a flat design is shown to the left All schematic pages in a flat design are contained within a single schematic folder and are ona single level as shown at left In the figure SCHEMATIC1 is a schematic folder It contains schematic pages named PAGE1 and PAGE2 Since you must manage all of the interconnections between the pages of a flat design using names assigned to off page connectors it is best to keep a flat design relatively small Hierarchical designs Hierarchical designs You can create symbols on schematic pages that represent
161. g box Choose Design Properties from the project manager s Options menu For more information see Primitive and nonprimitive parts on page 11 200 76 Defining the default hierarchy option for new projects For hierarchical blocks and part instances that have their Primitive property set to Default you can specify if you want Capture to treat each as primitive cannot descend into attached schematic folders or nonprimitive can descend into attached schematic folders The Primitive and Nonprimitive options in the Hierarchy tab of the Design Template dialog box only affect new projects Note that this setting affects how the options on the Tools menu process projects Design Template Eg SDT Compatibilty m Hierarchical Blocks Parts C Primitive Primitive Nonprimitive Nonprimitive Cancel Help Figure 29 Hierarchy tab of the Design Template dialog box To define the default hierarchy option 1 From the Options menu choose Design Template then choose the Hierarchy tab 2 For hierarchical blocks and parts select Primitive or Nonprimitive All hierarchical blocks and part instances that have their Primitive property set to Default will use the setting selected here Setting up your project template 3 Click OK 77 Chapter 4 Setting up your project OrCAD s Schematic Design Tools SDT 386 was OrCAD s DOS based schematic capture program Note You can also use the part fields
162. h Pg 1 Sch Pg 2 Sch B Sch Pg 3 Sch Pg 4 Figure 37 Schematics with hierarchy 105 Chapter 6 Design structure Sch Pg 1 Sch Pg 2 Sch B Sch Pg 3 Sch Pg 4 Figure 38 Schematics carrying a net Sch A ins Sch Pg 1 Sch Pg 2 Sch B Sch Pg 3 Sch Pg 4 Figure 39 Connectivity across pages in a schematic 106 To carry a net betw een schematic folder A and schematic folder B Figure 38 illustrates the schematics carrying a net between them 1 Select the hierarchical block on schematic page 1 and place a hierarchical pin named X inside it The hierarchical pin is a point of attachment for electrical connections between the hierarchical block and other objects on schematic page 1 2 Place a hierarchical port named X on schematic page 3 The hierarchical port is a point of attachment for electrical connections between schematic page 3 and other schematic pages within schematic folder B It is connected by name to the hierarchical pin inside the hierarchical block on schematic page 1 Hierarchical ports generally carry a net up through a hierarchy In a root module they usually represent external signals such as a hierarchical block in another project The two hierarchical ports added to schematic folder A are electrically connected to each other by the name Y so any electrical objects such as power or ground symbols on schematic pages 1 and 2 na
163. h and Height text boxes become the dimensions for each page size You 5 Setting up your project template cannot change these dimensions for individual schematic pages although you can select a different page size or choose to define a custom size In the Pin to Pin Spacing text box specify the default Note Part size will vary when copying and spacing between pins The value you enter in this text pasting parts between pages with different box defines how close together pins are when you pin to pin spacings place a part on a schematic page It also defines the grid spacing the space between grid dots or grid lines You cannot change this value for existing projects or individual schematic pages Click OK 73 Chapter 4 Setting up your project You can change these settings for existing schematic pages Choose Schematic Page Properties from the schematic page editor s Options menu then choose the Grid Reference tab in the Schematic Page Properties dialog box Note The size of the Grid Reference font is tied to the width 74 Defining the grid reference You set the border s grid references to display either horizontally or vertically alphabetically or numerically incrementally or decrementally across the schematic page and the width of their cells You can also make the border grid references and title block visible or invisible on the screen and on schematic pages you print The settings affect new projects
164. he Annotate Update Properties and Export Properties tools Back Annotate also updates occurrence properties Capture automatically selects the preferred updating choice in each of the dialog boxes for Annotate Update Properties and Export Properties Table6 Updating instances or occurrences Project type Update instances Update occurrences PCB No Yes Schematic No Yes FPGA Yes No PSpice Yes No If you are working within a PCB or Schematic project then choose to update occurrences when you use the Annotate Update Properties and Export Property tools The EDIF 2 0 0 VHDL and Verilog netlist formats generate true hierarchical netlists When a design is netlisted with one of these formats the instance property values on nets and parts are used All other netlist formats in Capture produce flat netlists and use occurrence property values The instance property value shines through to the occurrences as long as the occurrence property values have not been edited in any way When you explicitly edit an occurrence property value or Capture modifies it via one of the tools the instance value is overridden by the occurrence value Only the occurrence value will be placed in the netlist Preparing to create a netlist Annotating After you place parts on a schematic page all parts need to be uniquely identified using the Annotate command on the project manager s Tools menu This tool assigns unique part references to each
165. he bus The alias value is increased by one From the Edit menu choose Repeat The wire and the incremented alias text are placed at the specified distance from the previous set Repeat step 4 for every bus entry in the bus or repeat steps 3 and 4 as needed When you are done connecting bus entries press Esc Editing bus entries To move a bus entry select it and drag it to a new location To rotate a bus entry select it and choose Rotate from the Edit menu Ripping a subset of signals off the bus You can rip a bus that is a subset of another bus similar to the way you connect a net to a bus For example if you want to rip ADDR 8 15 off of ADDR 0 15 place a bus entry so that it connects the two buses Make sure that the name of the bus being ripped off uses a net alias that is a subset of the second bus You can route the ripped bus to any page in the design Use hierarchical ports hierarchical pins and off page connectors to connect the ripped bus to other schematic pages the same way you would with any other bus Placing and connecting wires and buses Tip To place an alias choose Net Alias from the Place menu Enter the net alias text following the naming conventions for buses and nets then click OK A rectangle representing the alias text attaches to the pointer Click the left mouse button on the bus or net to place the alias The alias text displays in the selection color When you are done placing ali
166. he Preferences dialog box appears 4 Choose the Miscellaneous tab select Enable intertool communication then click OK 5 Select an object in Layout The corresponding objectis Note In Capture the schematic folder highlighted on the schematic page in Capture automatically opens and displays the schematic page on which the corresponding part is located Scroll the window until the selected part is visible 299 Chapter 18 Using Capture with OrCAD Layout 300 General rules After creating your design in Capture and your board in Layout be sure to back annotate into Capture From that point on if you wish to make changes in the reference designators gate swaps or pins swaps do them in Layout and back annotate the results to Capture If you need to change connections do these in Capture and forward annotate the changes into Layout Using Capture with OrCAD PSpice 19 Overview This chapter provides guidelines for preparing your schematic for simulation and references further information contained in the OrCA D PSpice User s Guide A design that is targeted for simulation with PSpice will have e Parts which have PSpice simulation models available and configured refer to Creating parts for models in Chapter 5 in the OrCAD PSpice User s Guide e Sources of stimulus to the circuit refer to the Preparing a design for simulation tables in the Chapter 3 in the OrCAD PSpice User s Guide Chapter 19 Using Cap
167. he center to establish the radius of the arc then click the left mouse button to establish the location of one end of the arc Use the mouse to establish the other end of the arc and click the left mouse button The arc is drawn counterclockwise from the endpoint and displays in the selection color Choose the selection tool or press to dismiss the arc tool To resize an arc 1 Use the selection tool to select an arc Edit handles appear at the ends of the arc Drawing arcs 2 With the pointer on one of the handles press the mouse and drag The center remains the same The other arc endpoint uses the new radius 153 Chapter 8 Adding and editing graphics and text 154 Drawing polylines and polygons To draw a line with multiple contiguous segments use the polyline tool The line you draw adopts the current line style Polygons can be created with the polyline tool and they adopt the current fill style To create a non orthogonal polyline hold down the key while you draw To draw a polyline 1 From the Place menu choose Polyline or Choose the polyline tool on the tool palette 2 Click the left mouse button to begin drawing click to change directions and double click to end the final segment To draw non orthogonal polylines press lt Shift After you double click the polyline displays in the selection color 3 Choose the selection tool or press to dismiss the polyline tool To draw a polygon 1
168. ic project You must specify the hierarchical pins for the block Capture will not generate them PSpice Model Indicates that the attached implementation is a PSpice model file You must specify the hierarchical pins for the block Capture will not generate them PSpice Stimulus Indicates that the attached implementation is a PSpice stimulus file You must place the hierarchical pins on the block Capture will not generate them Implementation Name Specifies the name of the attached schematic folder VHDL entity netlist or project for the hierarchical block Schematic folder names are case sensitive Path and filename Specifies the path and filename of the attached schematic folder VHDL entity netlist or project for the hierarchical block Placing and editing hierarchical blocks If you specify a project that you haven t yet saved to disk Capture creates the projectin the directory specified by your TEMP environment variable Attaching an implementation does not automatically add that file project or schematic folder to the project You must specifically add the implementation to the project with the Project command on the Edit menu Note An attached schematic folder or other file external to the project or library is not stored with the project or library If you copy or move your project or library to anew location you must also move or copy the attached file to keep them together In addition you may need t
169. icrosoft Excel Bill of Materials dialog box Bill of Materials x m Scope OK Help Ecc Cancel tee _ m Line Item Definition Header fl tem tQuantity tReference tPart Combined property string iltem iQuantity Referencer talue T Place each part entry on a separate line m Include File T Merge an include file with report Conbined property sting ltem HQuantity tReference uV alue moudene C PROGRAM FILESSORCAD CAPTURESDES Report Report File I View Output C PROGRAM FILES ORCAD CAPTURESDES Browse Figure 72 Bill of Materials dialog box Scope Processes the entire design or selected schematic pages Header Text placed at the top of the first page If this text box is left blank there is no header on the first page You can use this to specify column headers to match the data reported as defined by the combined property string If you want the header items separated by tabs use the t character sequence in the header text box then insert corresponding tabs in the Combined property string text box Creating a bill of materials 267 Chapter 16 Creating reports Note If your include tile uses the value property as the match string then you only need value in this combined property string 268 Combined property string Specifies which properties are included in or excluded from the bill of materials and formats the
170. ield The name of the property is the string in the HEADER line and the value assigned to the part or pin is the string in the corresponding field e Delete a field from a HEADER line and subsequent lines delete a column This has no effect on any part or pin Deleting columns for properties you don t want to change may make the property file easier to edit If you delete a field from a HEADER line without also deleting the corresponding fields from subsequent lines Capture reports an error when you import the property file e Change the value of a field This resets the value of the property on all parts or pins with that property Importing properties You can use the Import Properties command to import a file that you created with the Export Properties command and edited using a spreadsheet database or text editor application To import properties 1 Inthe project manager open the library or project containing the parts to import Exporting and importing properties Note Column deletion must be done with care Columns may be deleted only from the HEADER line For example if you want to delete column 3 from a property file but accidentally include column 3 of the DESIGN line Capture reports an error when you import the property file 279 Chapter 17 Exporting and importing schematic data 2 From the project manager s Tools menu choose Import Properties The Import Properties dialog box appears Impo
171. ify whether to process the entire project or just the Back annotating selected schematic pages You can also specify the name of the swap file containing the gates and pins to swap These options are described in the section Back Annotate dialog box 5 Use the Browse button to locate the current back annotation file The Browse dialog box looks for a file with an extension of SWP but any file extension can be specified 6 When the dialog box has the settings you want click OK Capture swaps the gates and pins you specified Back Annotate dialog box Back Annotate x Scope OK Process entire design Cancel C Process selection Help Back Annotation File C PROGRAM FILESSORCAD CAPTURES Browse id Figure 70 Back Annotate dialog box Scope Specifies whether to process the entire project or P P proj just the selected schematic page or pages Bac Annotation File Specifies the swap file For more information see Swap file format 255 Chapter 14 Preparing to create a netlist Note OrCAD Layout creates a combined swap and update file See Capture s online help for more information on creating a combined swap and update file Note Swap files created by OrCAD s PCB 386 are was is files These files contain no keyword identifiers therefore each line is assumed to be a CHANGEREF instruction In the swap file example above the line without a keyword identifier the second line is an
172. imple hierarchy 99 A simple hierarchical design as seen in the project manager 100 An abstract representation of a complex hierarchy 101 A complex hierarchical design as seen in the project manager 101 Schematics before hietarchy 4 26 4 2G 4 bea eee SERA SRA Laws 105 Schematics with hierarchy 2 4 os e0 wes OE PEW Rw eRe ee ox 105 Schematics carrying a net lt ss0624Kch eke ed be hewn ok bes 106 Connectivity across pages ina schematic 106 Part editor in package VIEW 6 64 ooo 2 eee RE Ee ew 111 Part editor in part view naaa 24 bee Ew ew ee ER ORS bes 8 112 Place Part di log DOX ok s coe ta te xe oe eee ae ok a aas 115 Property editor with filter set to Capture 0 0 118 Power and ground symbols in CAPSYM OLB 120 Place Power dialog box 4242 2s eet oe chen Pade He ts heey 122 Hierarchical Block cos lt 228 Faced e a 4 Ee ee eee Ee 126 Place Hierarchical Block dialog box 0 0045 128 Hierarchical ports in CAPSYM OLB 254 6 s o R44 Ode eK ae SE 131 Place Hierarchical Port dialog box cue 8 oo eRe ee RAS 132 Place Hierarchical Pin dialog box ses see tee baw ease 135 Off page connectors in CAPSYM OLB 004 136 Place Off Page Connector dialog box 0 4 138 Schematic page editor tool palette 2 2 0 0048 148 Part editor tool palette 44 04 eed Gee eee ebw Reews ee
173. ing a macro Note After editing a macro you must reconfigure it Use the Add button in the Configure Macro dialog box to locate the macro on your system Select it and click Open 171 Chapter 9 Using macros Configure Macro dialog box Configure Macro x Macro Name Configured Macros r Macro PCBNetProps PCBPartProps PCBPinProps Record Play Remove rbi Keyboard Assignment Menu Assignment Description E Figure55 Configure Macro dialog box Macro Name Displays the macro name You can either select a macro from the macro name list box or type ina macro s name The macro shown in the Macro Name field is the macro that is run if you choose Play from the Macro menu or click the Run button in the Configure Macro dialog box Configured Maqros Displays the currently configured macros and any currently available temporary recordings Selecting a name from the list fills in the dialog box fields with the appropriate values Close Closes the dialog box Since the changes you make in the dialog box are immediately saved to memory these edits are not permanently saved to the file unless you use the Save command before you use the Close command 172 Configuring a macro Record Closes the dialog box displays the macro record dialog box and records your editing actions until you click the Stop button in the macro record dialog box A recording is temporary only available for the c
174. ing fill to an object lt ace 840k 2 Re ee aa es Oo Ee 155 Mirroring an object eh SES EEE He RES RES EES 155 Rotating an object 4 65 6s ware eee wa ee oe ee Pale ae FA 156 Moving a ODIECE 24 45 eae eho gS SE EHS ER SERRE ES 156 Cutting an object lt ero ee EH ES ERG Oe wR ERS EY oe 156 Copying am Opject s srela cra boe Se we oe oe Bas eee BAO 157 Pasting an object 24 0 cae Gs daw hee OS RHE ES RAGE RM 157 Deleting a selected object ke ek ARES REAR EDR me REARS 157 Placing A itmap iea ees Be PPS ae eRe ees a 158 Chapter 9 Chapter 10 Part Three Chapter 11 Contents Placing text esce oor eee ee oe eee wel SEs he SHOES ES 159 The text bounding box 4 4 ake eA oe ee Oe Oks Be 161 Deleting text ee n eaa e SSeS Se Poh as Chee se Gee ees 161 Modifying text sisa peut a 9 354 8 4 Ye ee ea CR ew ee 161 Finding text zee eb h4 apie RSS SERPS ES EASE Be es 163 Replacing text ss oos ds dea eee She ee ew ee eee ew oR 164 Importing text sce ok dh eek ee ee a ee hee bo ee ae 4 164 Exp rting text 24 4 es ode hota wo ee BOS eRe o E A 165 Character formatting 34 4 6 tna ies aa ek ww eR SR 165 About screen fonts ssr 0 AEE EEEE 166 Using macros 167 R c rding AMATO s s sacs ea ORS pha d Ke Sed eee ara 169 Playing a MACIO sosea soe aot AA a k ORA REE a AE A 170 Configuring a Macro sssaaa ds eee ew SRE e ee oe 171 Configure Macro dialog box k y 4 4 0 bob bam em open 172 Na ming A MACTO 6 2642 606 2eG ete edhe tee we
175. iority netnames override lower priority netnames Priority is determined by the source of the name ranked from highest to lowest as follows e Named nets e Hierarchical port names e Off page connectors e Power object names e Aliases e System generated names If there are any conflicts at any level of the comparison if for example there are two power objects on a bus they are resolved according to these rules e Between netnames of equal precedence priority follows alphabetical order e Ifthe net is a bus the net alias assigned to the greatest number of bus members has highest priority A net may change names several times as Create Netlist works For example a net may start with an alias of Battery on one page become ToBattery from an off page connector change again to become DC as a hierarchical port is encountered and finally change to BatteryBackup when Create Netlist finds a named net with higher priority Netname resolution Note If you have connected two power symbols like 5V and Vcc together with a wire the netlist will show 5V because its name comes before Vcc alphabetically 263 Chapter 15 Creating a netlist 264 Creating reports 16 Capture provides two report tools that you can use to produce lists of the things contained in your project Bill of Materials and Cross Reference Creating a bill of materials You can use the Bill of Materials command from the Tip A bill of materials in
176. it an entity architecture pair The architecture can also serve to connect other VHDL design units In a hierarchical design to move from the child schematic folder to the parent schematic page This is done in the schematic page editor using the Ascend Hierarchy command on the View menu See also child descend parent Acronym for American Standard Code for Information Interchange a seven bit code based on the first 128 characters of the ANSI character set that assigns numeric values to letters of the alphabet the ten decimal digits punctuation marks and other characters such as Backspace Carriage Return and Line Feed ASCII is the most widely used character coding set and as such enables different applications and computers to exchange information See also A NSI Acronym for automatic engineering change order Layout s AutoECO command translates schematic netlist information from Express to Layout See also forward annotate Glossary 312 back annotate bitmap bookmark brow se spreadsheet bus To apply modifications to part properties in a design such as updating part references and pin numbers swapping gates or swapping pins Parts are back annotated in the project manager using the Gate and Pin Swap command or the Update Properties command on the Tools menu In Layout to transmit data such as gate and pin swaps back to the schematic pages See also forward annotate Bitmaps are graphic images
177. ith 1 in each schematic folder If you don t instruct Capture to begin the reference numbers at 1 it looks at the selected schematic pages finds the highest part reference number and begins numbering from that number Do not change the page number The schematic pages are renumbered during annotation based on their order in the project manager If you select this option the pages are not renumbered Updating properties If you need to edit the properties for a few parts or nets you can do so in the schematic page editor If however you want to make the same changes to a number of parts or nets in a number of different designs the Update Properties tool is much quicker and easier than hand editing each property you d like to change You can use Update Properties to edit any properties except part reference net name and net ID You can also use Update Properties to add properties In essence it is a search and add or replace tool To update properties you create a file called an update file with one line for each part or net to change The leftmost column identifies the part or net by specifying the property value to match and the remaining columns provide the new property value The format of the update file is described in Update file format on page 14 243 To update part or net properties 1 Using a text editor create an update file as described in Update file format on page 14 243 2 To process only part of
178. ith OrCAD s Schematic Design Tools 78 Changing properties of existing projects 0 0 79 ASSIONING TNs sie amp eroa 64 S a ed ee Chee a ae e Eee EA 80 Defining hierarchy dee 4 eet hae on eee hee de S4 80 Using Capture with SDT oie atte eA eae GRA Pw ee EE 80 Viewing design information 24 1455 20585420 ee 44 81 Chapter 5 Part Two Chapter 6 Chapter 7 Contents Viewing invisible power pins without isolating them 82 Changing properties of existing schematic pages 83 Changing pape size 24 6 4 wa hee CoS a 83 Setting up new grid references cw esc Cee eA ee ee ee ee 84 Viewing miscellaneous schematic page properties 84 Printing and plotting 87 Printing or plotting schematic pages 00000 88 Printing or plotting parts or packages 2 2 oe eee eee 89 Printing the session log and text editor windows 90 Previewing printer or plotter output 00 4 91 scaling printer or plotter output 4 nag x ed ep ee RR eS 92 Special considerations for plotting 2 0 0 0 0008 93 Plotter pen COlOrS Aa be Ge ee ER RAD ERS OR A a 93 Creating designs Design structure 97 Flat d signs 42k Ry CPE LR CHOPS ee ee RE SEG Eo 98 Hierarchical designs es sos s hava he eee Re ee RS 99 Simple hierarchical designs 2 4 6 56546 es ee ee bee een 99 Complex hierarchies iicyalak vie hao eee ea ee ea ROR 101 Connecting schematic fol
179. l block Press the left mouse button drag the mouse to draw a rectangle and release the mouse button when the rectangle is the desired size Click an open space on the page to deselect the block Once you ve placed a hierarchical block you must place hierarchical pins inside it then name the pins so that they connect to like named hierarchical ports in the schematic pages in the child schematic folder See Placing hierarchical pins on page 7 133 Placing and editing hierarchical blocks Note If the child schematic folder you specify as the hierarchical block s attached schematic folder already exists Capture automatically adds hierarchical pins to the hierarchical block that match the corresponding ports on the schematic pages in the child schematic folder If the child schematic folder doesn t yet exist and you place the hierarchical block and choose Descend Hierarchy from the right mouse button pop up menu Capture creates a new schematic folder and creates a new schematic page containing hierarchical ports that match the hierarchical pinsin the hierarchical block 127 Chapter 7 Placing editing and connecting parts and electrical symbols 128 Place Hierarchical Block dialog box Place Hierarchical Block OOOO E Reference Primitive C No os Cancel Default User Properties Help Implementation Implementation Type lt none gt hh Implementation name Path and filename et Bro
180. ld create a duplicate title block or inadvertently move the title block off the schematic page 29 Chapter 2 The Capture work environment Note Objects remain grouped until you ungroup them or close the schematic page or part that contains them Note The Group command will not be available if your selection includes a net alias because a net alias is a property After block selecting the objects you want to group deselect the included net aliases by holding the key and clicking on each object 30 Grouping objects Use the Group command on the Edit menu to group multiple objects into one selectable object This is a convenient way to maintain the relationship among several objects while moving them to another location You can nest groups meaning a group can contain other groups as well as objects The Group command is only available when multiple objects are selected To group multiple selected objects 1 Select the objects you want to group as described in the previous section 2 From the Edit menu choose Group You can move the objects as a group 3 When you are through manipulating the objects as a group you can ungroup them From the Edit menu choose Ungroup Editing properties Editing properties In a Capture schematic design each object has properties that define their characteristics These objects include e Hierarchical ports e Off page connectors e DRC markers e Bookmarks e Parts including
181. leave the property editor and then return to it To display a property on the schematic page 1 2 In the property editor select the instance property cells you want to display then click the Display button Capture displays the Display Properties dialog box Complete the dialog box as desired then click OK Capture displays the property on the schematic page for all instances currently displayed in the property editor Moving and resizing graphic objects Moving and resizing graphic objects For some objects such as wires buses lines ellipses rectangles and so on you can edit the object s size and shape by clicking on it and dragging its resize handles Before you can move or resize a graphic object you must first select it A selected object has resize handles that you use to change the size of the graphical object To resize and move objects Note For descriptions of other ways to manipulate objects see Chapter 8 2 To resize the object press the left mouse button on a Adding and editing graphics and resize handle and drag the handle until the object is text the size you would like it Release the mouse button or To move the object press the left mouse button anywhere on the object except on a resize handle and drag the object until it is where you want it Release the mouse button 1 Select the object to resize or move 3 To deselect the object click in an area where there are no parts or o
182. lectronic circuits combine analog and digital components If you are among the many designers working with both analog and digital circuits you need a simulator that can handle mixed signal circuits Using OrCAD Capture you can create schematics for analog or mixed signal designs printed circuit board layout designs and programmable logic designs Capture s schematic page editor helps you efficiently create your design After your design is created use Capture s tools to quickly annotate them and prepare them for the next stage of development Before you begin xviii Capture interactively communicates with OrCAD PSpice and OrCAD Layout so you can easily debug your projects In addition to the 30 000 libraries included with Capture you can create your own parts and libraries for use with your designs You can even store schematics with libraries for reuse How to use this guide How to use this guide This guide is designed so you can quickly find the information you need to use Capture To help you learn and use Capture efficiently this manual is organized by tasks beginning with setting up your workspace for designs and projects part one followed by creating designs and libraries parts two and three and ending with processing your designs part four Symbols and conventions OrCAD printed documentation uses a few special symbols and conventions Notation Examples Description Ctrl R Press Ctrl
183. lette button 22 hierarchical pins 103 nets between schematic folders and schematic pages 102 off grid 133 Hierarchical Port command 131 tool palette button 22 hierarchical ports 103 nets between schematic folders and schematic pages 102 placing 131 properties 31 hierarchy 99 200 208 attached implementation 119 126 207 complex 101 defining for existing designs 80 defining for new designs 76 Hierarchy tab 9 placing hierarchical blocks 126 simple 99 highlighting defining for VHDL syntax 66 327 Index homogeneous package 195 201 202 attaching schematic folders 200 IEEE Symbol command 209 tool palette button 24 IEEE symbols adding to a part 209 Import Design command 275 dialog box Custom tab 275 EDIF tab 275 PSpice tab 275 Import Properties command 232 279 dialog box 280 importing designs 275 libraries 275 properties 232 279 text 164 include file format 269 input pin type 214 instances 10 31 35 36 in the property editor 36 intertool communication ITC enabling in Capture 295 enabling in Layout 295 J jumping to a bookmark 186 to a grid reference 185 to a marked location 186 to a new location 183 Junction command tool palette button 21 junctions 141 L LAYOUT INI file 291 libraries 194 copying parts to a different library 194 custom 194 328 exporting to a file 274 importing to a project 275 moving parts to a different library 194 o
184. ll the logical parts are identical except the pins the package is homogeneous For example a hex inverter is a homogeneous package If the logical parts vary in graphics number of pins or properties the package is heterogeneous An example of a heterogeneous package is a relay with a normally open switch a normally closed switch and a coil Both homogeneous and heterogeneous packages may have shared pins such as supply pins that are used by every logical part in the package Often these pins are invisible but are connected by name to a power or ground net Creating a new part You can create your own custom parts and save them ina library A custom part can be a single part or it can be a package that contains multiple parts It can contain pins graphics text and IEEE symbols Graphics must be within the part s body while text and IEEE symbols can be either inside or outside the part s body Pins are attached to the part at the part body border which defines the size and shape of the region in which you create the part body To create a part you complete three processes e Define the part e Draw the part e Place pins on the part This section describes these processes Defining a part Before you begin drawing a part you must provide Capture with specific information about the part such as the part s name If the part is a multiple part package you can specify how many parts are in the package and wheth
185. location with a different directory structure 119 Chapter 7 Placing editing and connecting parts and electrical symbols S DESIGN PAGE1 BEE Figure 44 Power and ground symbols in CAPSYM OLB 120 Placing and editing power and ground symbols You can place power and ground symbols and you can edit their names before or after placing them You can also edit the text associated with the symbols The name of a power symbol becomes the name of the global net that is created Placing power and ground symbols Power and ground symbols are placed on a schematic page using the Power command or Ground command on the Place menu or using the power tool or ground tool on the tool palette Power and ground symbols are selected from libraries the same way parts are selected from libraries CAPSYM OLB contains all the power and ground symbols shipped with Capture To place a power symbol 1 From the schematic page editor s Place menu choose Power or Choose the power tool on the schematic page editor s tool palette The Place Power dialog box appears 2 Inthe Symbol text box type the name of the symbol to place If you aren t sure of the exact name of the symbol you can enter wildcard characters to constrain the list of symbols then press Enter Valid wildcard characters are an asterisk to match multiple characters and a question mark to match a single character All power symbols in the libraries select
186. log box appears hierarchical ports and off page connectors 2 Select CAPSYM OLB or your own custom library on schematic pages in the same schematic containing hierarchical ports from those listed in the folder and connects tol ike named Libraries field or use the Add Library and Remove hier archical pins inside hierarchical blocks Library buttons to change what is listed in the in parent schematic folders Libraries field and select one or more libraries 1 From the schematic page editor s Place menu choose Hierarchical Port 3 In the list below the Symbol text box select the type of the hierarchical port The selection s name appears in the Symbol text box and its graphic displays in the preview box 4 Type in the name for the hierarchical port The name is added to the attached net and is used to determine which like named hierarchical pins and hierarchical 131 Chapter 7 Placing editing and connecting parts and electrical symbols 132 ports the port connects to Hierarchical ports attached to buses must have a bus type name preferably the same name as the bus For more information see Bus naming conventions in Capture s online help When you have specified the characteristics of the hierarchical port click OK The Place Hierarchical Port dialog box closes 6 You can now place the hierarchical port anywhere on the schematic page If you want to move the port you can select it and drag it to another location a
187. lor palette window click OK to dismiss the color palette then click OK to dismiss the dialog box 28 Selecting and deselecting objects Once you select an object you can perform operations on it including moving copying cutting mirroring rotating resizing or editing You can also select multiple objects and edit them or group them into a single object Grouping objects maintains the relationship among them while you move them to another location This section describes different ways to select individual objects and groups of objects in both the schematic page editor and the part editor To select an object 1 Position the pointer on the object and click the left mouse button The object displays in the selection color To select multiple objects 1 For each object to select position the pointer on the object and press while you click the left mouse button Every object in the selection set displays in the selection color Tip To select a part dick within the part itself To select a graphical object click on an outside edge of the object it is easier to do this if you zoom in To deselect objects 1 Click on an area where there are no objects Selected objects become deselected Note that a part occupies a rectangular area encompassing all its graphics This means that a part may occupy a larger area than is initially apparent To select all objects in an area 1 From the tool palette choose the selection t
188. lylines 154 rectangles 150 squares 150 DRC markers 233 properties 31 drivers plotter 87 printer 87 DXF 273 E ECO 281 Run ECO to Layout 281 EDIF 273 configuration files 274 275 editing 31 ground symbols 124 hierarchical blocks 130 off page connectors 139 power symbols 124 properties 31 property files 278 user defined properties 31 Ellipse command tool palette button 22 ellipses drawing 151 resizing 151 Exit command 51 Export Design command 274 dialog box DXF tab 274 EDIF tab 274 Export Properties command 232 276 dialog box 277 exporting designs 274 326 libraries 274 properties 232 276 text 165 extensions for filenames INI 53 OLB 71 F file extensions INI 53 MNL 291 OLB 71 SWP 293 file formats DXF 273 EDIF 273 include file Bill of Materials command 269 netlist format files 262 property file 277 PSpice 273 Schematics 273 File tab 9 file types back annotation files 293 netlist files 291 swap files 293 files auto recovery 63 BACKANNO MAX 293 DXF 273 EDIF 273 configuration files 274 275 LAYOUT INI 291 MSIM LINI 275 opening 47 property 277 PSpice 273 MSIM_INI 275 Schematics 273 fill style 147 defining for graphics 63 fill adding to a graphic object 155 Find command 14 finding parts in a design 189 parts on a schematic page 189 flat designs 98 off page connectors 98 folders Design Cach
189. matic pages 0n page 4 83 To get to the Design Properties option you must select either the design name a schematicfolder or a schematic page in the project manager 79 Chapter 4 Setting up your project 80 Assigning fonts Fonts are assigned to new projects using the Fonts tab in the Design Template dialog box You can change fonts for existing projects using the Fonts tab in the Design Properties dialog box choose Design Properties from the project manager s Options menu When you change the settings for the fonts in Design Properties all affected text which is set to the default font will be changed If you have assigned a unique font to any piece of text in the design these will not be affected by changing the default font See Setting up fonts for new projects on page 4 69 for more information Defining hierarchy The behavior for hierarchical blocks and part instances whose Primitive property is set to Default whether to act as primitive or nonprimitive is defined for new projects using the Hierarchy tab in the Design Template dialog box You can change this behavior for individual projects using the Hierarchy tab in the Design Properties dialog box choose Design Properties from the project manager s Options menu See Defining the default hierarchy option for new projects on page 4 76 for more information Using Capture with SDT The mapping of Schematic Design Tools to Capture properties for new project
190. mation on creating a Capture netlist for use with Layout see Chapter 18 Using Capture with OrCAD Layout Chapter 15 Creating a netlist 260 EDIF 2 0 0 SPICE VHDL Verilog or INF netlist format Allegro Layout PCB 386 OHDL or Other netlist format Flat design Flat netlist Flat netlist Simple Hierarchical netlist Flat netlist hierarchical design Complex Hierarchical netlist Flat netlist hierarchical design To create a netlist 1 Inthe project manager select your design 2 From the Tools menu choose Create Netlist The Create Netlist dialog box displays Create Netlist x PSpice SPICE VHDL Verilog Layout INF Other r Part Value PCB Footprint Combined property string Combined property string fivalue Pce Footprint r Options I Allow nonEDIF characters T Output pin names instead of pin numbers T Do not create extemal library declaration I Output Designator constructs I Output net properties T Output part properties Jo Goteut ein properties Netlist File I View Output C PROGRAM FILESSORCADSCAPTURESDESIGN1 EDN Browse Cancel Help Figure 71 Create Netlist dialog box 3 Choose a netlist format tab 4 Inthe Netlist File text box enter a name for the output file If the selected format creates an additional file such as a map file or pinlist file enter its filename in the second text box 5
191. mbol Library Name Title Block Name Titles lockO Cancel Help Figure 25 Title Block tab of the Design Template dialog box 70 Capture provides default title block symbols in the CAPSYM OLB library One such title block is shown below The text shown in curly braces acts as property text placeholders You can specify the value by double clicking on the text and supplying a value You can control the visibility by selecting or deselecting the Visible check box in the Display Properties dialog box DESIGN1 PAGE1 oT x Pate Monday April 01 1996 Sheet Figure 26 Title block To choose a title block and define the text it contains 1 From the Options menu choose Design Template then choose the Title Block tab 2 Inthe Text group box enter the information you want to appear in the title block 3 Inthe Symbol group box enter the path and filename of the library containing the title block a The Library Name text box can be left blank if you are using title block from the CAPSYM OLB library and CAPSYM OLB has not been moved to a different directory from where it was installed b Ifyou are using a custom title block then put the full path and file name for the library in the Library Name text box 4 Enter the exact name of the title block into the Title Block Name text box Symbol names are case sensitive and space sensitive 5 Click OK Setting up your project template You ca
192. me in the text box 4 Click OK To move to a specific bookmark 1 From the View menu choose Go To The Go To dialog box appears 2 Choose the Bookmark tab 3 Enter the name of the bookmark and click OK Moving to a new location Go To dialog box Bookmark tab Location Grid Reference Bookmark Cancel Help Figure 58 Bookmark tab of the Go To dialog box Name Specifies a name of a bookmark for the jump 187 Chapter 10 Changing your view of a schematic page Displaying the grid and grid references Note The settings in the Grid Display tab in You can hide the grid display and grid references then the Preferences dialog box from the display them again later Options menu control whether the grid appears as grid dots or lines The Grid To display or hide the grid Display tab setting also controls whether I Tomiie View menu choose Gnd the pointer snaps to grid To display or hide the grid references 1 From the View menu choose Grid References 188 Finding parts in a project Using the Find command and a part property value you can locate a part in a project schematic folder or on a schematic page In the Find dialog box you enter a property value string and specify that you want to find a part Capture searches all the parts to find those with a property value that matches the string If you aren t sure of the exact property value string you can enter wildcard characters to constr
193. med Y are part of the net named Y You could make both of these hierarchical ports off page connectors without affecting the electrical connections Figure 39 illustrates this electrical connectivity across pages in a schematic To connect the schematic pages in schematic folder B place a hierarchical port named X on schematic page 4 Any like named electrical objects on schematic pages 3 and 4 are now part of a single net named X To connect the X nets in schematic folder B and the Y nets in schematic folder A you cannot simply rename one set of objects to match the other set of objects Remember the hierarchical pin X inside the hierarchical block on schematic page 1 does not bring net X out onto schematic page 1 You must physically connect An example creating a simple hierarchy hierarchical pin X to net Y in order to join the two nets 107 Chapter 6 Design structure 108 Pladng editing and connecting parts and electrical symbols 7 Capture includes libraries containing parts power symbols and ground symbols You can place instances of these objects on a schematic page Once you place a part you can edit its appearance properties or location Once you have placed a power or ground symbol you can rotate it or edit its name This chapter contains information about placing and editing objects from Capture libraries It also explains how to connect these
194. mes of the connected signals parts and pins A part with an underlying hierarchy such as an attached schematic folder An instance placed on a schematic page with one or more sets of unique property values that may differ from other occurrences of the same instance An occurrence typically appears in a complex hierarchy where a schematic is reused Each use of the schematic is an occurrence while the schematic itself is the instance See also instance occurrence property A property attached to an occurrence as opposed to a property attached to an instance or added to a part ina library Occurrence properties override instance properties but are not reflected on the instance See also instance occurrence An object that conducts signals between schematic pages within the same schematic folder See also flat design A physical part that contains more than one logical part For example a 2N3905 transistor a fuse and a 74LS00 are packages Each part in a package has a unique part reference comprised of an alphanumeric prefix common to all the parts in the package and a letter unique to each part For example a 74LS00 with a part reference prefix of U15 would have four parts with part references of U15A U15B U15C and U15D See also homogeneous part heterogeneous part To change the portion of the schematic page or part being viewed by dragging objects from one location to another As you drag an object the schematic page
195. mouse click starts a circle 180 Zooming In the schematic page editor and in the part editor you can look closely at a particular area by using the Zoom In command on the View menu Conversely you can change your viewing perspective to increase the portion of the drawing board that is visible by using the Zoom Out command When you zoom in or out Capture centers your view on the current pointer position if possible If the pointer is outside the window or if you choose the Zoom In or Zoom Out toolbar button Capture centers your view on any selected objects Otherwise Capture zooms in or out on the center of the active window To zoom in 1 From the View menu choose Zoom then choose In or Choose the zoom in tool on the toolbar The current zoom scale is multiplied by the zoom factor With a zoom factor of two zooming in makes the image twice as large and displays half the area of the previous view To zoom out 1 From the View menu choose Zoom then choose Out or Choose the zoom out tool on the toolbar The current zoom scale is divided by the zoom factor With a zoom factor of two zooming out halves the image size and shows twice the area of the previous view To change the zoom factor 1 From the Options menu choose Preferences then choose the Pan and Zoom tab 2 Inthe Zoom Factor text box enter the new zoom factor Note that you can specify separate values for the schematic page editor and the part edi
196. multiple copies of the bitmap repeat this step Press or choose the selection tool To resize a bitmap 1 Select the bitmap so that it displays in the selection color with edit handles at the four corners Position the pointer over an edit handle and drag the edit handle The bitmap s size and shape change to accommodate the new dimensions Using the key constrains resizing the bitmap to proportional changes in the horizontal and vertical directions Placing text You can place text in the font of your choice on a schematic page or on a part to document your schematic page To place text on a schematic page 1 From the Place menu choose Text or Choose the text tool on the tool palette Enter the text To type numbers using the numeric keypad on your keyboard you must first enable the key Complete the dialog box selections by specifying font color and rotation Click OK to close the dialog box A rectangle representing the text is attached to the pointer Click the left mouse button to place the text at the desired location You can place multiple copies of the text by clicking the left mouse button at each location where you would like text When you are done placing text choose End Mode from the right mouse button pop up menu or press Esc To move text 1 Select the text so that it displays in the selection color with edit handles at the four corners Position the pointer over the text
197. n access the Display Properties dialog box by following these steps 1 Double click on the property or 1 Double click the object containing the property 2 Select the property in the property editor and click Display You can create custom title blocks and store them in a library using the New Symbol command from the project manager s Design menu If you specify the name of the custom library and title block in the Symbol group box of the Design Template s Title Block tab the custom title block appears in the lower right corner of each new schematic page See Capture s online help for specific instructions For Capture to automatically place the information you entered in the text fields into your custom title block you must give your custom title block the appropriate properties See the topic Creating a custom title block in Capture s online help for more information 71 Chapter 4 Setting up your project You can select a different unit of measure or page size A B C D E and Custom if the unit of measure is Inches or A4 A3 A2 Al AO and Custom if the unit of measure is Millimeters for individual schematic pages in existing projects Choose Schematic Page Properties from the schematic page editor s Options menu and use the Page Size tab Note Changing from Inches to Millimeters resets the page sizes to their defaults therefore if you make any changes to the standard page size dimensions then
198. n the part editor select a power pin From the Edit menu choose Properties The Pin Properties dialog box appears Select the Pin Visible option Click OK Displaying power pins in this manner breaks their global nature In order for these pins to be included in a netlist you must wire them into the circuit Viewing parts in a package View ing parts in a package For a package containing multiple parts you can use the Package command on the View menu to view all the parts in the package at once You can then choose which part in the package to edit If the package is homogeneous you can only edit pin names and pin numbers since each part in a package must have the same graphic representation If the package is heterogeneous you can make each part in the package graphically distinct To view a package 1 From the part editor s View menu choose Package The package view window shown below replaces the part editor window l E FULLADD DSN 74LS32_0 of x Figure 63 Part editor in Package View 2 You can move from part to part using the arrow and Tip When editing a multi part package a keys The current selection is indicated by a quick way to move from one part in a thicker black line package to another is to use the Next Part and Previous Part commands on the View Double clicking on any of the parts in the package closes the package view window and opens the part in the part editor window menu 225 Cha
199. n the schematic pages Any schematic folders or schematic pages that you create are automatically added to the design folder in Figure 2 the design folder is named DESIGN3 DSN You can also add other files or information using the Project command on the Edit menu For example you can add an existing VHDL file to the design folder and later attach the models within that VHDL file to hierarchical blocks on a schematic page e The Library folder in the Design Resources folder shows the schematic part library files you ve added to the project using the Project command on the Edit menu e The Outputs folder shows the output of Capture s processing tools Generally these files include bill of materials reports and technology specific netlists Capture adds the appropriate files to this folder as each is created Each project may have only one design but may have multiple libraries The design may consist of any number of schematics or VHDL models but it must have a single root module The root module is defined as the top level of the design That is all other modules in the design are referenced within the root module Within the project manager you can expand or collapse the structure you see by double clicking on a folder or by clicking on the plus sign or minus sign to the left of a folder A plus sign indicates that the folder has contents that are not currently visible a minus sign indicates that the folder is open and its
200. n to add the file to the project that Note If you choose the No button Capture is currently open The Save As dialog box appears does not add the VHDL file to your project and you must save it yourself at a later point in time 45 Chapter 3 Starting a project 46 3 Select a directory for the file and supply a filename By default the VHDL file s name is VHDLn VHD where n is an integer indicating the number of VHD files created in the current session Choose the Save button Capture saves the file and places it in the Design Resources folder of your project Opening existing projects designs libraries and VHDL files Opening existing projects designs libraries and VHDL files You can open an existing project design library or VHDL file Existing schematic pages can only be opened from within designs and libraries To open an existing project 1 From the File menu choose Open then choose Project The Open Project dialog box displays Select a project OPJ or type the name in the File name text box then choose the Open button The project opens in the project manager To open an existing design 1 From the File menu choose Open then choose Design The Open Design dialog box displays Select a design DSN or type the name in the File name text box then choose the Open button The design opens in the project manager To open an existing schematic page i In the project manager select
201. nce from the Horizontal drop down list 4 Select a vertical grid reference from the Vertical drop down list 5 Click OK Go To dialog box Grid Reference tab Location Grid Reference Bookmark Horizontal i x Vertical 1 7 Cancel Help Figure 57 Grid Reference tab of the Go To dialog box Horizontal Specifies a horizontal grid reference for the jump Vertical Specifies a vertical grid reference for the jump 185 Chapter 10 Changing your view of a schematic page 186 Jumping to a marked location To return repeatedly to a specific area of a schematic page or to direct attention to a particular location you can use a bookmark To use a bookmark you assign it a name and place it on a schematic page When you want to return to it use the Go To command You can also reuse existing bookmarks by selecting them and moving them to new locations Bookmarks are saved with your project To place a bookmark 1 From the Place menu choose Bookmark The Place Bookmark dialog box appears 2 Enter the name of the bookmark then click OK 3 Position the pointer where you want the bookmark and click the left mouse button The bookmark is placed and displays in the selection color 4 Click an area where there are no parts or objects to deselect the bookmark To rename a bookmark 1 Select the bookmark 2 From the Edit menu choose Properties The Edit Bookmark dialog box displays 3 Enter anew na
202. nces 232 properties 232 selected parts in the design cache 199 user defined properties 31 V VHDL files creating 13 opening 47 viewing 13 VHDL syntax defining colors 66 defining fonts 66 defining highlighting 66 viewing centering 182 entire page or part 182 selected area 181 visibility power pins 82 119 status bar 27 tool palette 25 61 toolbar 19 W window active 4 part editor 12 project manager 6 schematic page editor 11 session frame 4 session log 14 333 Index text editor 13 Wire command 141 tool palette button 21 wires editing 140 placing 140 Z Zoom All command 182 toolbar 18 Zoom Area command 181 toolbar 17 zoom factor 180 defining 59 60 Zoom In command 180 toolbar 17 Zoom Out command 180 toolbar 17 zoom scale 181 zooming 59 180 334
203. nces dialog box To set miscellaneous options 1 From the Options menu choose Preferences then choose the Miscellaneous tab 2 For the schematic page editor and the part editor set these options e Fill Style Select the fill pattern to be used when drawing rectangles ellipses and closed shapes drawn with the polyline tool You can change the fill style line style and width and color on graphic objects on an individual basis once they are drawn on a schematic page Select the object then from the Edit menu choose Properties For specific instructions see Chapter 8 Adding and editing graphics and text For information about intertool communication between Capture and Layout see Chapter 18 Using Capture with OrCAD Layout For information about intertool communication between Capture and PSpice see Chapter 19 Using Capture with OrCAD PSpice For information about intertool communication between Capture and Simulate in OrCAD Express see Chapter 4 Functional simulation in the Express User s Guide 63 Chapter 4 Setting up your project Note The Default color is the color defined in the Graphics box in the Colors Print tab in the Preferences dialog box Graphics objects use the colors specified by Miscellaneous tab If the color options in the Miscellaneous tab are set to Default color then Capture uses the color specified by the Colors Print tab Tip The Render TrueType fonts with strokes op
204. nd pins Specify a filename for the output file using an EXP extension Specify whether you want to export instance properties or occurrence properties Click OK The property file is created Property file format When you export properties Capture creates a Note Export Properties and Import tab delimited list of keywords identifiers and properties Properties use a reference designator as a each of which is enclosed in double quotation marks The match string Therefore these tools cannot first line of a property file begins with either the keyword be used to annotate your design If you DESIGN or the keyword LIBRARY to identify the data as want to swap part references create a back being from either a design or a library Subsequent lines of annotation file and then use Back the property file begin with one of the following Annotation keywords HEADER PART PIN or SYMBOL 277 Chapter 17 Exporting and importing schematic data Note Ifyou add delete or reorder lines in a design property file the file cannot be imported If you move a PART line in a design property file or ina library property file be sure to move all the PIN lines associated with it and keep them in the same order otherwise importing the file may fail or the file may cause unwanted changes to your project or library In every case it is much safer to make changes without adding deleting or reordering the lines in a property file 278 If y
205. nd reports parts that use the same part reference For example Capture considers two U1 s to be identical two U1A s to be identical and U1 and U1A to be identical Report invalid packaging Reports parts that are packaged into the same physical package but whose package properties conflict primarily source package and PCB footprint Report hierarchical ports and off page connectors In the report file lists all hierarchical ports and off page connectors Report off grid objects In the report file lists the names and locations of objects that are off grid Report all net names In the report file lists the Tip Report all net names can be used to names of all nets If a net is attached to another net of a locate nets that have been inadvertently different name then this option will report the alternative shorted to other nets net name as well Report File The name of the report file containing the information prepared by Design Rules Check This file usually has an extension of DRC For an example of the report generated by the Design Rules Check tool see Sample Design Rules Check report on page 14 251 View Output Specifies to view the result of the DRC check in a text editor 249 Chapter 14 Preparing to create a netlist Design Rules Check dialog box ERC Matrix tab Design Rules Check Input ei n gt Ne Bidirectional __ o y Output whet of ES RG Open Collector I IE 3 Ca S c m af Open Emit
206. net has an output pin and a bidirectional pin a warning is issued based on the W in the intersection of the Output row and the Bidirectional column For the Unconnected row the DRC checks to see if the specified pin or port type is unconnected Sample Design Rules Check report KKK KKK KKK KK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KKKKKKKKAE Design Rules Check KKK KKK KKK KKK KK KKK KKK KK KKK KEK KKK KK KEK KKK KKK KKK KKK KKK KKK KKK KK Checking for Invalid Pins in Package ERROR DRC0031 Same Pin mber connected to more than one net halfadd_B U1C 9 Nets NO0035_178 and N00035 EX6B EX6B SCH 5 20 2 50 ERROR DRC0031 Same Pin mber connected to more than one net halfadd_B U1C 10 Nets NO0037_179 and N00037 EX6B EX6B SCH 5 20 2 70 ERROR DRC0031 Same Pin mber connected to more than one net halfadd_B U1C 8 Nets N00013 and SUM EX6B EX6B SCH 6 40 60 ERROR DRC0031 Same Pin mber connected to more than one net halfadd_B U2D 9 Nets Y and NOOO13 EX6B EX6B SCH 4 00 3 10 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U2D 8 Nets N5056796111_183 and N5056796111 EX6B EX6B SCH 4 00 2 10 ERROR DRC0031 Same Pin ber connected to more than one net halfadd_B U2C 5 Nets X and CARRY_IN EX6B EX6B SCH 3 50 1 90 ERROR DRC0
207. new Zero length power pin be sure snap to grid is turned on and draw the wire to the edge of the border in the middle of the pin name If you connect to an invisible power pin that is displayed by this method the pin is isolated from the design wide power net Otherwise the power pins are global even though Capture displays them Note You cannot connect to an invisible power pin that is displayed by this method Note Power Pin Visible is one of the properties of your parts that can be turned on or off from inside the property editor 221 Chapter 12 Creating and editing parts Tip Inthe project manager you can create a new part from an existing part by dragging a copy of the part press the key while you drag the part to a new library and then editing the part You can also create an alias of the part by changing to package view in the part editor choosing Package Properties from the Options menu then choosing the Part Alias button Once you create a part alias you must save the part to have the alias show up in the library In the library part aliases display with lines through their part icons 222 Editing an existing part You can edit an existing part in the library in which it resides or you can edit a part after it is placed on a schematic page Editing a part in a library Once you edit a part in a library you can update existing projects with the new part using the Update Cache or Replace Cache comm
208. ns 1 Inthe project manager select the schematic pages that you want to check for design rules violations 2 From the project manager s Tools menu choose Design Rules Check or Choose the design rules check tool from the toolbar The Design Rules Check dialog box appears 3 Select the settings you want in the Design Rules Check tab and in the ERC Matrix tab For information about the settings in these tabs see Design Rules Check dialog box Design Rules Check tab on page 14 247 and Design Rules Check dialog box ERC Matrix tab on page 14 250 4 When both tabs of the Design Rules Check dialog box have the settings you want click OK As Capture checks your project it displays status information about the check If you stop the design rules check midstream by choosing the Cancel button in the status information dialog box the schematic Checking for design rules violations 245 Chapter 14 Preparing to create a netlist Tip To view the information contained in a DRC report with an external text editor or word processor set up a file association using the Open With dialog box in Windows Explorer By doing this you can open the DRC report by double clicking on it in Windows Explorer 246 pages that have already been processed will have DRC markers marking any error situations that were encountered Once the design rules check is complete there are three ways to view the results You can double click on the file
209. ny design library or VHDL file in your project that hasn t been saved or has been modified since the last save is saved as a temporary file with an ASP extension in the WINDOWS TEMP AUTOSAVE directory When you close your project normally the AUTOSAVE directory and temporary files are deleted In cases of power outages or system crashes however the temporary files are saved When you restart Capture it loads the auto recovered files showing Restored in their title bars You must use the Save As command and provide a filename to have an auto recovered file overwrite the original file Defining your preferences e Auto Reference Select whether to enable automatic annotating of reference designators when parts are placed e Intertool Communication Select whether to enable intertool communication also known as ITC so that you can test and display design information using other OrCAD software such as Layout PSpice and Express in conjunction with Capture Capture processes its tools faster when intertool communication is not selected 5 Click OK 65 Chapter 4 Setting up your project Note The Highlight Keywords Comments and Quoted Strings option must be enabled for Capture to use the syntax highlighting options 66 Setting text editor options Capture s text editor options include automatic highlighting of VHDL keywords comments or quoted strings You can also set the font the tab spacing and
210. o edit the path to the attached schematic folder or file if you move your project to a new location with a different directory structure 129 Chapter 7 Placing editing and connecting parts and electrical symbols 130 Editing hierarchical blocks You can edit a hierarchical block after it is placed Select the hierarchical block and do one of the following e Double click it e Choose Properties from the Edit menu e Choose Edit Properties from the pop up menu Each of these methods displays the property editor in which you can change the block s reference choose among the options in the Primitive group box or modify the attached schematic folder s name or path You can also add and modify user properties in the property editor You can also edit the display properties of the text associated with the hierarchical block Select the text of the hierarchical block and do one of the following e Double click it e Choose Properties from the Edit menu e Choose Edit Properties from the pop up menu Each of these methods displays the Display Properties dialog box in which you can edit the visibility color font or rotation of the text of the hierarchical block You can click a hierarchical block and move it to another location or you can drag its selection handles to resize it You can also use the Mirror or Rotate commands to change the appearance of the block Placing and editing hierarchical ports and hierarchical
211. objects selected on the schematic page before you play any of the three macros The value you enter for each property must be in uppercase as shown in Table 2 Table 3 and Table 4 on pages 18 285 18 288 and 18 290 respectively To add Layout part properties to a part 1 Select a part on the schematic page 2 From the Macro menu choose Set Layout Part Properties The Set Layout Part Properties dialog box appears 3 Enter values for those properties you want to add to the part then click OK The properties are added to the part See Table 2 Layout part properties on page 285 fora description and example value for each of the properties in the dialog box Table 2 Layout part properties Preparing your Capture design for use with Layout Property name Example value Description COMPFIXED YES If the value is YES the part such as an edge connector is permanently fixed to the board COMPGROUP 2 An integer value that assigns the part to a group for placement Assigning components in groups is useful for placing them in the Layout board design COMPKEY YES Used to designate a component as the key component in a given group When placing components in Layout using groups the key component is placed first with all the other components in the group placed in proximity to it COMPLOC 1000 1000 Part location on the board as X and Y coordinates Use the following format X Y whe
212. ol OFFPAGELEFT L OFFPAGELEFT R G amp OFFPAGELEFT L Libraries Name JOFFPAGELEFT L Figure 52 Place Off Page Connector dialog box Cancel Add Library Remove Library di Help Symbol Specifies the off page connector symbol to use If you aren t sure of the exact name of the symbol you can enter wildcard characters to constrain the list of symbols then click OK Valid wildcard characters are an asterisk to match multiple characters and a question mark to match a single character The names of all symbols in the selected libraries that match the wildcard appear in the Symbol list box Symbol list Lists the names of all symbols in the selected libraries that match the text entered in the Symbol text box If more than one library is selected the symbol name is followed by a slash and a library name When you select an off page connector in this list its name displays in the Symbol text box and its graphic displays in the preview box Libraries Lists the library names currently available Select the libraries from which to select symbols All symbols in the selected libraries that match the Symbol text box display in the Symbol list To select more than one library press while you click the mouse Preview box Displays the graphic of the selected symbol Name The name of the symbol Other off page connectors and hierarchical ports in the same schematic folder that have this name are connec
213. omogeneous package HPGL Glossary The process of sending netlist data in the form of an MNL file from Capture to Layout An object drawn or placed on a schematic page or part such as an arc line rectangle ellipse polygon bitmap text or title block that has no electrical connectivity The border around a schematic page that acts as a visual reference for the grid Grid references can be used as a destination for the Go To command on the View menu and can be set to visible or hidden in both the Design Template and Schematic Page Properties dialog boxes A package with multiple parts that are graphically different or contain different numbers of pins for example a relay See also homogeneous package A symbol placed on a parent schematic page that refers to a child schematic folder Hierarchical pins are placed within a hierarchical block and hierarchical ports that refer to the hierarchical pins are placed on a schematic page within the child schematic folder See also hierarchical pin hierarchical port A design in which design modules are interconnected vertically with hierarchical blocks or parts with attached schematic folders At least one module the root module contains symbols representing other schematic folders See also complex hierarchy simple hierarchy flat design design module A symbol placed within a hierarchical block that represents a signal connected to a like named hierarchical port on
214. on and title blocks that you can reuse in your projects The relationship between the library and the parts and symbols it contains is similar to the relationship between a schematic folder and its contents The contents of the library move with the library and are deleted with the library You can create custom libraries to store any combination of items You can for example create a library to hold schematic pages that you use often There is no need to create a library for a project because the design cache holds all the parts and symbols used in the design When you work with a library in Capture you use the project manager The project manager lists the parts and symbols contained in the library To edit a part double click on it The part opens in a part editor window To move a part to a different library open the source library and the destination library in separate project manager windows Select the part and drag it from one library to the other To copy a part to a different library follow the same procedure but hold the key down while you drag the part Because a library is a file you can work with it in the Windows Explorer as well as in Capture When you need to back up a library use Windows Explorer to create a copy Parts Parts are the basic building blocks of a design A part may represent one or more physical elements or it may represent a function a simulation model or a text description fo
215. on locate and select the back annotation file you created in Layout design_name SWP then click OK The Layout information is back annotated to the design in Capture Back annotating board information from Layout Note Layout uses reference designators as identification for forward and back annotation For this reason all changes to reference designators must be made in Layout and back annotated to Capture Similarly if you change existing reference designators in your Capture design and forward annotate them into your Layout board your board will no longer be usable Note Don t create a second SWP file without back annotating the first SWP file to Capture otherwise the swap information in the first SWP is overwritten by the second SWP file Note If you have renamed your components in your Layout board and created a SWP file those changes in reference designators are removed from the current board file MAX Only the BACKANNO MAX file retains the information on the original and current reference designators but it is overwritten once you generate another SWP file So if you want to retain the information on original and current reference designators rename the BACKANNO MAX file 293 Chapter 18 Using Capture with OrCAD Layout Note For information on Layout s AutoECO options see AutoECO in Capture s online help Note You can also bring Capture netlist information into Layout by using the Run ECO to La
216. on when you update part references Any connections added to or deleted from your Layout board are not back annotated into Capture For this reason when you want to modify connections make the changes in Capture and forward annotate them to Layout Changes in reference designators must be done in Layout and back annotated with Capture Preparing your Capture design for use with Layout To prepare a Capture design for Layout you must first modify the design assigning special properties and Layout supported footprints to your parts The tables in this section list the part net or pin properties supported by Layout These three dialog boxes the Set Layout Part Properties Set Layout Net Properties and Set Layout Pin Properties dialog boxes appear when you choose their corresponding commands on the schematic page editor s Macro menu To prepare your Capture design for use with Layout 1 2 Create a schematic design using Capture Assign values to the appropriate properties in the Set Layout Part Properties dialog box the Set Layout Net Properties dialog box or the Set Layout Pin Properties dialog box These settings transfer part net and pin information to Layout Assign PCB footprints to each of your parts Use only Layout compatible footprints choosing from those in the OrCAD Layout for Windows Footprint Libraries document or those in your custom footprint libraries If you are using parts from non Layout libra
217. on a schematic page From the schematic page editor s Edit menu choose Properties The property editor appears 2 In the instance s Implementation Type cell select the appropriate implementation type 3 In the instance s Implementation cell enter the name of the child schematic folder If the child schematic folder is not in the current project enter the path and filename of the library design VHDL or EDIF file 4 Click Apply Adding graphics text and IEEE symbols to a part Once you have defined a part you can draw an outline to reflect the part s shape and you can add graphics to add detail to the part To add graphics to a part you use the Line Rectangle Ellipse Arc Polyline and Picture commands on the Place menu or the corresponding tools on the tool palette You can also add text to the part using the Text command on the Place menu or the text tool on the tool palette A part can include IEEE symbols shown in the lower right corner Unlike graphics IEEE symbols do not have to be within the part s body To place an IEEE symbol 1 From the part editor s Place menu choose IEEE Symbol or Choose the IEEE symbol tool from the part editor s tool palette 2 Inthe Place IEEE Symbol dialog box select a symbol from the Symbol list box The symbol appears in the preview box When you have selected the symbol you want to place click OK The IEEE Symbol dialog box closes An image of the IEEE s
218. on the Edit menu ke Paste Paste the contents of the Clipboard at the cursor Equivalent to the Paste command on the Edit menu Ei Undo Undo the last command performed if possible Equivalent to the Undo i command on the Edit menu Cu Redo Redo the last command performed if possible Equivalent to the Redo gt command on the Edit menu Zoom In Zoom in to see a closer enlarged view Equivalent to choosing Zoom Ej and In from the View menu For more information see To zoom in on page 10 180 Zoom Out Zoom out to see more of your document Equivalent to choosing Zoom P and Out from the View menu For more information see To zoom out on page 10 181 D Zoom Area Specify an area of the schematic page or part to enlarge to fill the entire window Equivalent to choosing Zoom and Area from the View menu For more information see To view a selected area on page 10 181 17 Chapter 2 Tool The Capture work environment Name Description Zoom All View the entire document Equivalent to choosing Zoom and All from the View menu For more information see To view the entire page or part on page 10 182 Annotate Assign part references to parts on the selected schematic pages Equivalent to the Annotate command on the Tools menu For more information see Annotating on page 14 235 E3 Back Annotate Back annotate the selected schematic pages Equivalent to the Back Annotate command on
219. one part instance and the new part has no link to the original library To replace a design cache part instance with a different library part 1 Open the project containing the part instance you want to replace 2 Open the design cache and select the part instance you want to replace The design cache Note Updating or replacing a part in the design cache affects every instance of the part in the design as long as the part instances have retained their links to their original libraries 197 Chapter 11 About libraries and parts Tip You can leave the Part Name and Part Library fields unchanged to update the part instance with its original version This is useful if you have changed the part instance in the design cache and would like to use its original version or if you have received an update toa library and want to use the new version of the library part 198 Replace Cache x Part Name OK 74L532 Cancel Part Library C ORCAD CAPTURESLIBRARYSSDTSTTL OLB Browse From the Design menu choose Replace Cache The Replace Cache dialog box appears PU Help Figure 59 Replace Cache dialog box The text boxes in the Replace Cache dialog box contain the name of the part instance you are replacing and its original source library In the Part Name text box type the exact name of the library part you want to use to replace the selected part instance using appropriate upper case and lower case lette
220. ool 2 Click on an area where there are no objects or parts to deselect any items that may be selected 3 Move the pointer to one corner of the area to select Press and hold the left mouse button while you drag the mouse to the opposite corner then release the left mouse button Every object in the selection set appears in the selection color To select all objects on a schematic page or part 1 From the Edit menu choose Select All All objects appear in the selection color To select an object from a set of objects stacked atop one another 1 Position the pointer over the stack of objects 2 Press while you click the left mouse button This cycles through the objects in the stack To remove one object from a selection set 1 Place the pointer over the object press Ctrl and click the left mouse button Selecting and deselecting objects E You can control whether the selection set indudes all objects intersected by your selection rectangle or only those objects entirely inside the selection rectangle by the following steps 1 From the Options menu choose Preferences then choose the Select tab 2 Select one of the Area Select options then click OK Note A selection set behaves as it it is one object so you can move copy cut delete mirror or rotate the entire set Be aware however that the Select All command also selects the title block on the schematic page If you copy or move the selection set you cou
221. oolbar tool palettes and general Capture concepts such as selecting and editing objects editing properties and undoing and repeating actions Chapter 2 The Capture work environment Gj DESIGN3 _ Oy x SCHEMATIC PAGE1 H E Design Cache G Library amp Outputs Figure 2 NeW project manager window For information about hierarchical designs see Chapter 6 Design structure The project manager You use the project manager to collect and organize all the resources you need for your project These resources include schematic folders schematic pages part libraries parts VHDL files and output reports such as bills of materials and netlists Figure 2 shows a new project manager window A project doesn t actually contain all the resources It merely points to the various files that the project uses For this reason be sure you don t move or delete any files referenced by a project If you do the project won t be able to find them The project file is saved with an OP file extension It is an ASCII file and can be viewed in any text editor Project manager folders The project manager provides a graphical display of a project s resources by grouping them into appropriate folders as described below e Shown underneath the Design Resources folder is the design folder with the design s schematic folders and schematic pages and a Design Cache folder that shows all the parts used o
222. option to create a PC Board or Schematic project type 44 Creating new projects designs libraries and VHDL files You can create a new project and then create new designs libraries and VHDL files To create a new project 1 From the File menu choose New then choose Project The New Project dialog box appears Type a name for your new project in the Name text box Use the Browse button to select a new directory Select a project type in the Create a New Project Using group box and click OK Capture provides the following project types Analog or mixed signal circuit select this type of project if you intend to use your design with OrCAD PSpice Follow the guidance of the Analog Mixed Mode Project wizard to add the appropriate files to your project PC board select this type of project if you intend to use your design with OrCAD Layout Follow the guidance of the PCB Project Wizard to add the appropriate files to your project Programmable logic select this type of project if you intend to use your design with OrCAD Express Follow the guidance of the Programmable Logic Project Wizard to add the appropriate files to your project Schematic select this type of project if none of the other project types apply Using this option Capture creates a basic project containing only the design file Creating new projects designs libraries and VHDL files To create a new design 1 2 From the File men
223. or part pans across the active window 317 Glossary 318 parent part part alias part editor part instance part primitive PCB pin pin swap pin to pin spacing polygon A schematic page containing a hierarchical block that references another schematic folder called a child See also child hierarchical block A part is a basic building block of a project that may represent one or more physical elements or a function a simulation model or a text description for use by another application A part s behavior is described by a SPICE model an attached schematic folder HDL statements or other means Parts usually correspond to physical objects gates connectors and so on that come in packages of one or more parts You can think of these packages as physical parts and the parts you place on a schematic page as logical parts Physical parts with more than one logical part are sometimes referred to as multiple part packages For simplicity Express usually refers to both as parts See also package A duplicate copy of a part that uses a different name A part alias uses the same graphics attached schematic folders and properties as the original with the exception of the part value The editor used to create and edit parts and symbols An instance of a part See also instance See primitive Acronym for printed circuit board A pin acts as a point of connectivity for the part it is attached to In
224. ort 22 IEEE Symbol 24 Import Design 275 Import Properties 279 Junction 21 Line 22 Net Alias 21 New 17 No Connect 22 Off Page Connector 22 Open 17 47 Part 21 Paste 17 Pin 24 Pin Array 24 Polyline 22 Power 21 Preferences 53 Print 17 Rectangle 22 Redo 17 40 Repeat 40 Save 17 50 Schematic Page Properties 53 Select All 29 Status Bar 27 Text 23 Tool palette 25 Toolbar 19 Undo 17 40 Ungroup 30 Wire 21 Zoom All 18 Zoom Area 17 Zoom In 17 Zoom Out 17 complex hierarchy 101 Configure Macro dialog box 172 configuring macros 171 Convert command 206 227 convert view of a part 206 227 Copy command 157 160 165 toolbar 17 Create Netlist command 200 208 231 232 toolbar 18 dialog box 261 format files 262 creating macros 167 cross probing 295 Capture to Layout 296 Layout to Capture 298 Cross Reference command 232 toolbar 18 dialog box 271 custom libraries 194 custom parts 203 Cut command 156 165 toolbar 17 D De Morgan equivalent 206 defining auto recovery interval 63 autoscrolling 59 Capture settings 53 colors 56 colors for graphics 63 colors for VHDL syntax 66 fill style for graphics 63 fonts for VHDL syntax 66 grid display 58 grid references 84 highlighting for VHDL syntax 66 line style for graphics 63 line width for graphics 63 macros for display on Macro menu 174 names 172 175 shortcut ke
225. oss probing from Capture to Layout When ITC is enabled in Capture and you select certain items on your schematic page cross probing highlights the corresponding items in Layout If you select a part or gate in a multiple part package in Capture cross probing highlights the corresponding module in Layout If you select a wire segment or net in Capture cross probing highlights the corresponding net in its entirety in Layout Any action you perform to select an object on your Capture schematic page selecting using the mouse using the Find command or performing a browse of parts causes the corresponding object in Layout to be highlighted For more information see Table 5 Cross probing between Capture and Layout Table5 Cross probing from Capture to Layout Selecting this in Capture Highlights this in Layout Part Corresponding component Gate multiple parts per package Corresponding component Wire segment Entire net Net All routes for the net Pin on part Corresponding component To select an object in Capture for cross probing with Layout 1 Open a Capture schematic page and a matching Layout design Choose Half Screen from Layout s Window menu then position the Capture and Layout session frames so that you can see both From Capture s Options menu choose Preferences The Preferences dialog box appears Choose the Miscellaneous tab select Enable intertool communication then click OK
226. ote The project manager is also used to manage libraries and the parts they contain This is covered in detail in Chapter 11 About libraries and parts A schematic page provides a graphical description of the electrical connectivity of a design It is made up of parts wires and other electrical symbols A schematic page may also contain borders title blocks text and graphics Capture acts on any schematic folders or schematic pages you have selected within an active project manager window For example the Find and Browse commands on the project manager s Edit menu the Print command on the project manager s File menu and the various tools on the Tools menu only apply to the selected schematic folder or page Project manager tabs File and Hierarchy The project manager provides two ways to display a project s resources If you choose the File tab shown in Figure 3 the project manager displays all the project s folders schematic folders and schematic pages These are displayed in a tree like fashion You can expand or collapse the tree by clicking the plus sign in front of the icon When that branch of the tree is expanded the plus sign change to a minus sign If you choose the Hierarchy tab shown in Figure 4 the project manager displays the hierarchical relationship among the project s schematic folders and schematic pages Single view Versions of Capture prior to Release 9 used logical mode and ph
227. ou can add a junction using the Place junction button on the schematic page editor s toolbar or by choosing Junction from the Place menu in the schematic page editor You can place junctions anywhere on a wire or bus but they only take effect when another object is connected at the junction s location You can remove a junction by selecting it and using the key or by placing another junction on top of the existing one To place a wire 1 From the schematic page editor s Place menu choose Wire or Choose the wire tool on the schematic page editor s tool palette 2 Click the left mouse button to start the wire 3 Move the mouse to draw the wire Click the left mouse button if you want to place a vertex and change directions 4 Double click to end the wire The wire displays in the selection color or Click on another wire Clicking on another wire connects the two wires Placing and connecting wires and buses Tip To find out the name of the net to which a pin is connected double click the pin then click User Properties in the Pin Properties dialog box The Net Name property is the name of the net Note If you place parts so that two pins meet end to end the pins are connected When you move the parts away from each other a wire is automatically placed Note Junctions can only be placed on wires and buses A junction cannot be placed in an open area or on an object such as a pin or a port Note The wire is
228. ou export both parts and pins each PART line is followed by a PIN line If you export symbols there are no PIN lines following the SYMBOL lines since symbols have no pins The HEADER lines are compiled from a superset of the property names found on parts and pins if applicable from the whole page or from the whole library This means that if part 1 has properties named A B and C part 2 has properties named D E and F and a pin has properties named G H and I then the HEADER line will have after the first two columns nine columns titled A B C D E F G H and I Editing a property file You can edit a property file in a spreadsheet or database application or in a text editor as long as it doesn t convert the tabs to spaces Depending on which application you use the property file displays as rows and columns of cells or fields or as lines of text There are a few restrictions on the changes you can make in a property file e You must not change or delete the first line e You must not change or delete the first two fields in any line e You must not change the sequence or number of lines e Donot delete a field from a HEADER line without also deleting the corresponding fields from subsequent lines Keeping these restrictions in mind you can generally make the following changes e Add a field to a HEADER line and subsequent lines add a column This adds a property to parts and pins with a value in this f
229. output according to the tabs you insert and the order in which you specify the properties When you specify the combined property string you enclose property names in curly braces When the Bill Of Materials is run the properties in the curly braces are substituted with property values for the part or left empty if the property is empty or doesn t exist on the part The properties are left justified and separated by the characters you type outside the curly brackets To insert a tab use t Reference t Value prints a part s reference a tab character and the part s value Place each part entry on a separate line Select this item if you want each part to be listed on a separate line Merge an indude file with report Select this item if you want to use an include file Combined property string Specify the property to use to match the property value specified in quotes on each line of the include file This is the search string and is compared with match strings specified in the include file Report File The name of the file to contain the bill of materials report Creating a bill of materials Include file format You can use an include file to have Bill of Materials add additional information to each line of the bill of materials You create an include INC file using any text editor that saves files in ASCII format The first line of an include file is a header The bill of materials is always keyed to the part
230. page connectors are stored in the CAPSYM OLB library Placing off page connectors To place an off page connector you use the Off Page Connector command on the Place menu or the off page connector tool on the tool palette To place an off page connector 1 From the schematic page editor s Place menu choose Off Page Connector or Choose the off page connector tool on the schematic page editor s tool palette The Place Off Page Connector dialog box appears 2 Inthe Symbol text box type the name of the symbol to place If you aren t sure of the exact name of the symbol you can enter wildcard characters to constrain the list of symbols then click OK Valid wildcard characters are an asterisk to match multiple characters and a question mark to match a single character After you type the name of the symbol to place click OK All symbols in the libraries listed in the Libraries list box that match the symbol name are listed in the box below the Symbol text box When you select a symbol from this box its graphic image displays When you have located the symbol you want to place click OK An image of the symbol is attached to your pointer You can press the right mouse button to display a pop up menu with commands that you can use to change the appearance of the symbol before you place it You can mirror the symbol horizontally or vertically rotate the symbol or edit its properties Move the pointer to the loc
231. part in a part editor window After you finish editing the part and choose Save you re given a choice of updating the single instance or updating all instances in the design If you update only the single instance Capture creates a new part in the design cache If you update all instances Capture replaces the library part in the design cache with your edited part These new parts are placed in the design cache with n appended to the name where n is an integer To edit the properties of a part select the part on the schematic page and either choose Properties from the Edit menu or choose Edit Properties from the right mouse button pop up menu You can also double click the part This displays the property editor shown in Figure 43 S Parts Spreadsheet olx Delete Apply Display Capture x FULLADD FULLADD SCH U1 TALS32 DIDESIGNSSDT FULLADD OLB 13 TaLS32 U3 ORCAD DESIGNS ISDT FULLADD 4 4 gt Parts Schematic Nets A Pins A Title Blocks Figure 43 Property editor with filter set to Capture Capture displays properties according to the selected filter All the properties are shown when the filter is set to All General schematic page properties are shown when the filter is set to Capture The following are common properties Value Specifies the part value name By default the part value is set to the name of the part if you don t specify a Note 10 cange tne Part Kererence part value in
232. pboard 1 Select the session log window to make it active 2 Select the text and choose Copy from the Edit menu To print the session log 1 Select the session log window to make it active 2 From the File menu choose the Print command To use Find in the session log 1 Select the session log window to make it active 2 From the Edit menu choose the Find command The Find dialog box appears 3 Enter the word or words that you want to find 4 Click Find Next To save the session log to a text file 1 Select the session log window to make it active 2 From the File menu choose the Save As command The Save As dialog box appears 3 Enter a file name in the File name text box By default the session log is saved to SESSION TXT in the current directory If necessary specify a new location for the file 4 Click Save The session log text is saved to the file 15 Chapter 2 The Capture work environment Note The toolbar is always docked on the top edge of the session frame the first time you open a project in a new session frame of Capture The position of the tool palette is not saved olsa a sae sie alalalal The toolbar Capture s toolbar is dockable that is you can select an area between buttons and drag the toolbar to a new location and resizable and displays tooltips for each tool By choosing a tool button you can quickly perform a task If a tool button is dimmed you can t perform that task in the c
233. pening 47 Library folder 6 275 Line command tool palette button 22 line style 147 defining for graphics 63 line width defining for graphics 63 lines drawing 149 resizing 149 logical mode 9 M Macro Name dialog box 171 macros adding 173 configuring 171 creating 167 defining for display on Macro menu 174 shortcut keys 173 177 defining shortcut keys 171 naming 172 175 playing 170 recording 169 removing 173 saving 173 shortcut key assignments 177 temporary 167 Mirror command 155 modes logical 9 physical 9 multiple objects selecting 28 multiple part packages 195 creating 203 naming macros 172 175 Net Alias command tool palette button 21 net aliases 140 143 editing 142 net names 140 net properties transferring to Layout 287 netlist creating 232 creating for Layout 291 creating for simulation 260 format files 262 netname resolution 263 nets hierarchical blocks between schematic folders and schematic pages 102 hierarchical pins between schematic folders and schematic pages 102 hierarchical ports between schematic folders and schematic pages 102 off page connectors between schematic pages in a single schematic 102 properties 31 user defined properties 31 New command toolbar button 17 New Part command 203 New Part Properties dialog box 206 Next Part command 225 No Connect command 124 tool palette button 22 nonprimitive parts 112 200 208 0 o
234. perform project wide tasks such as locating objects creating a netlist or generating reports This window displays the structure of the schematic folders and schematic pages contained in a design See also hierarchical design simple hierarchy A characteristic of an object that can be edited A property consists of a name and a value Examples of property names are part value and color Their respective property values can be something such as capacitor and red The schematic folder at the top of a hierarchical design The root schematic folder contains a backslash in its folder icon in the project manager A project has only one root schematic folder A pin width that carries only one signal as opposed to a bus pin that can carry multiple signals A graphical representation of a circuit using a set of electronic symbols hierarchical blocks and connections Typically used by system and programmable logic designers to express a structural design description A collection of all schematic pages at the same level of hierarchy in a design In the project manager a schematic folder behaves like a container See also flat design hierarchical design schematic page root schematic folder 319 Glossary 320 schematic page schematic page editor session frame session log signal simple hierarchy source library spreadsheet editor symbol tabbed dialog box The pages on which a design is drawn Schematic pages di
235. pins Placing and editing hierarchical ports and hierarchical pins For information on how hierarchical designs are Note You can create custom power connected using hierarchical blocks hierarchical ports ground and other symbols for hierarchical and hierarchical pins see Connecting schematic folders ports hierarchical pins off page and schematic pages in Chapter 6 Design structure connectors title blocks and power objects by using the New Symbol command on the Design menu in the project manager window For information on how to use this P A cin 9 hiera rchical ports command see Capture s online help You place hierarchical ports on schematic pages in child S DESIGN PAGET arl schematic folders then name the ports so that they connect to like named hierarchical pins inside hierarchical B O gt PORTBOTH L PORTBOTH R lt A blocks on schematic pages in parent schematic folders 2C PORTLEFT L PORTLEFT R lt T Hierarchical ports also connect to like named hierarchical M PORTNO L PoRTNO R CT ports and to off page connectors with the same name on gt PORTRIGHTL PORTRIGHT R COS schematic pages within the same schematic folder Hierarchical ports are stored in the CAPSYM OLB library Figure 48 Hierarchical ports in To place a hierarchical port CAPSYM OLB Tip You can place a hierarchical port anywhere on a schematic page A hierarchical port connects to like named The Place Hierarchical Port dia
236. place you want the symbol 4 When you are done placing symbols choose the selection tool or press to dismiss the IEEE symbol tool Placing pins on a part There are several ways you can place pins on a part You can use the Pin command on the part editor s Place menu or the pin tool on the tool palette to place individual pins or you can use the Pin Array command on the Place menu or the pin array tool on the tool palette to place several pins at once Pins will always connect to the part body border the dotted line around the part If the edge of a part body coincides with this border pins can connect directly to the part body However if the part body is inside this border you can draw a line between the part body and the pin on the part body border to make the pin look as though it connects to the part body To place a pin From the part editor s Place menu choose Pin or From the part editor s tool palette choose the pin tool The Place Pin dialog box appears You must provide information about the pin you are placing In the Name text box type a name and pin number for the pin you are placing If a pin name is not specified Capture generates one because pins must be named You can use the default settings for the other options on this dialog box or change them to fit your requirements When the pin is specified to your requirements click OK Using the pointer drag the pin to the desired location along
237. plays Note All Schematic page objects nave rignt mouse button pop up menus These menus are context sensitive displaying commands appropriate for the selected object For information about pop up menu commands see the Capture online help 113 Chapter 7 Placing editing and connecting parts and electrical symbols 114 This places an instance of the part on your schematic page You can place multiple instances of the part by clicking the left mouse button at each location where you want an instance of the part When you are done placing instances of the selected part choose End Mode from the right mouse button pop up menu or press Esc Placing and editing parts Place Part dialog box Place Part x Graphic o Normal Cancel Convert Add Library m Packaging Remove Library Parts per Pkg 4 Part A Part Search Help dlld Libraries Design Cache Figure 42 Place Part dialog box Part Specifies the name of the part If you aren t sure of the exact name of the part you can enter wildcard characters to constrain the list of parts then click OK Valid wildcard characters are an asterisk to match multiple characters and a question mark to match a single character The names of all parts in the selected libraries that match the wildcard appear in the Part list box Part list Lists the names of all parts in the selected libraries that match the name
238. pter 12 Creating and editing parts 226 Editing parts in a package For a package containing multiple parts you can use the Package Properties spreadsheet to edit all the pins in a given package in the package at once If the package is homogeneous you can only edit pin names and pin numbers since each part in a package must have the same graphic representation If the package is heterogeneous you can make each part in the package graphically distinct When a normal and convert part are both available the normal and convert names and types will appear on the spreadsheet To edit parts in a package 1 From the part editor s View menu choose Package The package view window replaces the part editor window 2 From the Edit menu choose Properties The Package Properties spreadsheet appears 3 Edit the pin location pin order pin group for pin swapping pin number pin name pin type and whether the pin is to be ignored for shared pins as needed 4 After editing pin numbers and names click the Validate button to assure each pin is unique 5 Click OK View ing a part s convert A convert view is an alternate view of a part It can be used for things such as a DeMorgan equivalent of a part If a part has a convert view you can easily switch between the normal view and convert view in the part editor To view a part s convert 1 From the part editor s View menu choose Convert 2 To go back to the normal view o
239. r use by an external application A part s behavior is described by a PCB footprint an HDL statement or an attached schematic folder Parts usually correspond to physical objects gates chips connectors and so on that come in packages of one or more parts Packages that have more than one part are sometimes referred to as multiple part packages For simplicity Capture usually refers to both parts and multiple part packages as parts You can specify packaging information when you create a part or you can change it in the part editor from the Options menu choose Package Properties Each part has graphics pins and properties that describe it As you place the parts in a package to suit your design requirements Capture maintains the identity of the single physical part the package for back annotation netlisting bills of materials and processes that require it The parts in a package may have different pin assignments graphics and user properties If all the parts in a package are identical except for the pin the package is homogeneous If the parts in a package have different graphics numbers of pins or properties the package is heterogeneous Parts 195 Chapter 11 About libraries and parts 196 Part instances and occurrences A part instance is a part you have placed on a schematic page A part instance may have occurrences A part occurrence is a part that potentially holds property values for reuse
240. re The lt All gt filter causes the property editor to display all properties that currently exist for the selected item When editing properties in the property editor it is important to remember a few key points e Property values that are applied to instances will shine through to all occurrences of those instances unless an occurrence has a value independent of the instance value for a particular property e Occurrence property values override instance property values e When you delete an instance property that property will no longer shine through to its occurrences e Deleting a property value from an occurrence causes the instance property value to shine through to that occurrence To create a new property in the property editor 1 In the schematic page editor select the object s for which you want to create the property On the Edit menu choose Properties Capture displays the property editor Click the New button Capture displays the New Property dialog box Enter a name for the new property and click OK Capture adds the new property to the property editor and to all instances and occurrences currently displayed therein Enter values for the property as described in To edit a property value in the property editor To edit a property value in the property editor 1 In the property editor select the cell that contains the value you want to change Type in the new value
241. re X and Y represent the coordinates Both must be integers in mils or microns COMPLOCKED YES If the value is YES the part is temporarily locked in position COMPROT 270 00 Part rotation in degrees and minutes counterclockwise from the orientation defined in the Layout library Use a period to separate degrees and minutes COMPSIDE BOT Determines which side of a board a part will reside on TOP or BOT FOOTPRINT DIP24 An explicit definition of the footprint name to attach to the component 285 Chapter 18 Using Capture with OrCAD Layout Table2 Layout part properties continued Property name Example value Description FPLIST DIP24 400 Comma delimited list of alternate footprints to attach to components to ease switching between footprints GATEGROUP 1 Identifies gate swapping restrictions within a component In order to be swapped two gates must belong to the same gate group MIRRORFOOTPR DIP24 M INT An explicit mirror shape for the component if you don t want Layout to perform mirroring PARTNUM 489746 A customer part number that is generally unique for each customer and identifies the exact part including manufacturer and case type PARTSHAPE 74LS04 A generic part number such as 74LS04 or CK05 that represents a certain part throughout the industry but may not identify the manufacturer or case type If no footprint is defined or the corre
242. rence properties are displayed only if they have their own values assigned to them independent of the instance property values 36 Each column in the property editor is a property Each row is an instance or occurrence Occurrence rows appear in yellow below their associated instance row They only appear if you expand the instance by clicking the plus sign to the left of the instance name The cells in the property editor show the property values for each instance or occurrence If a cell contains a cross hatch pattern the corresponding property does not have a value for instances or does not have an occurrence specific property causing the instance property value to shine through The properties that appear in the property editor depend on the items selected in the schematic page Also these properties depend on the tab selection at the bottom of the property editor For example if the Parts tab is active the properties for selected parts appear in the property editor You can also constrain the set of displayed properties by using the filters available in the drop down list in the upper right of the property editor There are a number of filters available These filters are sets of properties that are typically useful for particular project types For example the Actel Designer Part Net Properties filter includes properties that are useful for constraining a PLD project for integration with Actel s Designer softwa
243. ries such as discrete parts and custom footprints check that the pin numbers of your part match the pad numbers of your Layout footprint You may need to work with Capture s part editor or Layout s footprint libraries In addition you need to make sure that each pin has a pin number as well as a pin name Run Design Rules Check from the Tools menu to check for design rule violations Preparing your Capture design for use with Layout Note For information about simple and complex hierarchical designs see Chapter 6 Design structure Note For illustrations of these three dialog boxes and descriptions and example values for their respective properties see Transferring user defined properties to Layout on page 284 Note Layout doesn t accept PCB footprint names or part values that include spaces or tabs Use the Capture spreadsheet editor to eliminate the spaces or tabs 283 Chapter 18 Using Capture with OrCAD Layout GateGroup MirrorFootPrint PartNum PartShape PowerPin 284 Transferring user defined properties to Layout To transfer part net or pin information to Layout assign values to the appropriate properties in the Set Layout Part Properties dialog box the Set Layout Net Properties dialog box or the Set Layout Pin Properties dialog box To have the properties in the dialog boxes added to the parts nets or pins you need to have the appropriate
244. ription Specifies the description associated with the macro You can specify a description for a temporary macro recording or change the description used for an existing macro by entering text in the Description text box Naming a macro Naming a macro You can assign a macro a name of any length Since periods aren t allowed in macro filenames don t specify a file extension for your macro filename Capture assigns an extension of BAS to your macro filename If you want you can rename the file with a different file extension using the Rename command in Windows Explorer There are some restrictions regarding the names you give your macros These restrictions are given below e You cannot use spaces in a filename e You cannot use the following filename extensions for your macro names since they are reserved for Capture s use DBK DLL DSN EXE INI OBK and OLB e You cannot use any of the names in Table 1 for your macro names since they are reserved for use by Capture s macro subroutines 175 Chapter 9 Using macros 176 Table 1 Capture s macro subroutines Copy DisplayPropertyEx EndPlace FindHierarchicalPorts FindParts GoToAbsolute GoToRelative MirrorVertical PlaceArc PlaceBookMark PlaceBusEntry PlaceGroundWithDialog PlaceNetAlias PlaceNextPolylinePoint PlaceOffPageWithDialog PlacePicture PlacePolygon PlacePortWithDialog PlaceRectangle PlaceTitleBlock RemoveDisplayProperty Rotate
245. rise time fall time and period of an analog repeating pulse or the complex timing relations with repeating segments of a digital stimulus Graphical feedback enables you to verify the waveform Placing stimulus sources Stimulus sources come from the LIBRARY PSPICE SOURCSTM OLB library and are one of e VSTIM voltage stimulus source for transient analysis e ISTIM current stimulus source for transient analysis e DIGSTIMn digital stimulus source You can place any of these sources in the same way you place any other part Using the Stimulus Editor For information on using the Stimulus Editor refer to the Transient Analysis chapter in the OrCA D PSpice User s Guide or to the Stimulus Editor topics in the PSpice online help 305 Chapter 19 Using Capture with OrCAD PSpice For more information refer to the Starting Simulation section of the Setting Up Analyses and Starting Simulation chapter in the OrCA D PSpice User s Guide 306 Setting up and running analyses Refer to your PSpice user s guide for information about setting up and running the many different analysis types supported by PSpice A D After creating a simulation profile you can start the simulator directly from Capture by choosing Run from the PSpice menu View ing results You can use the waveform analysis features of PSpice to view and perform waveform analysis of the simulation results Viewing results as you simulate You can
246. roject manager so 424 45 49c446 b8 ae BhSH4 ES Se eRe SG 6 Project manager folders lt 0 4 vein bk eee ee Pe SS 6 Project manager tabs File and Hierarchy 9 Single VIEW a s oc s oe BORD ERDAS OO Oo Ewe OE ee Oe e 9 Part instances and part occurrences 25 pe bbe Re ee wees 10 Project manager pop up Menus 16 ee ee ee 10 The schematic page editor lt 5 ux 40 44 xe 9404 bee eee S ORY bo 11 Thepart editor i s r ewes ke hee eo Eh ee eee E Gee oF 12 The Programmer s editor 04 ene pelted ee oa OME eR wx SD 13 The session logi e iens Be Pe oe ee Pa CS ea ee Oe 14 Thetoolbar 2c ee ee eee pae Dees EEN ee Oe eae 16 Displaying or hiding the toolbar 0048 19 The tool palettes 22 24 ea ose be ee OR EWE ORS SY we 20 The schematic page editor tool palette 20 The part editor tool palette 4 46d 4Gs tbe wees eee ees 23 Displaying or hiding a tool palette 25 Contents Chapter 3 Chapter 4 THe Status bat ss nece a s Re ee Ew Oe Oe wwe we Rl ee 26 Left field oie eee amp Anh eee oe ee ee ee Ee ee eee ae 26 Center field 45 4 6d eee iw doe SEER RESTS Chae ed OS 26 Right tel lt 4 Ai 4 y aop aup aw kept do eae ad oe eS ee ed 26 Displaying or hiding the statusbar 27 Selecting and deselecting objects 2 2 a 28 Grouping ODES ss bane Pa eee ee ee eee Kee oe eee 30 Editing properties 2 nb SESS e ea ee Se Ee Ew eRe REM 3
247. rom one property to another property in the Browse spreadsheet editor 1 In the first column of the Browse spreadsheet select the object or occurrence that has the property with the value you want to copy From the Edit menu choose Properties Capture displays the object in a new Browse spreadsheet window Select the cell that contains the value you want to copy Click Copy Select the cell that you want to contain the copied value Click Paste Capture pastes the value into the selected cell 33 Chapter 2 The Capture work environment Note Some properties cannot be removed as they are essential for creating a netlist You can only remove user defined properties Note If you remove a property from an occurrence for which there is a defined instance property the occurrence property is not removed but rather the instance property value shines through to the occurrence In order to remove an instance property you must use the property editor For more information about instance and occurrence properties see The property editor 0n page 2 35 34 To remove a user defined property in the Browse spreadsheet editor 1 In the first column of the Browse spreadsheet select the object or occurrence that has the property you want to remove 2 Select the column heading for the property you want to remove 3 Click Remove Capture removes that property from the object The property editor You display the p
248. roperty editor either by selecting items on a schematic page then choosing Properties on the Edit or popup menu or by simply double clicking on an item in the schematic page editor The property editor allows you to edit properties for instances or occurrences of the following objects e Parts including hierarchical blocks e Nets including constituent nets within buses e Pins e Title blocks The property editor is constrained such that it can only edit instances or occurrences on the active schematic page To browse and edit properties for an entire design see The Browse spreadsheet editor on page 2 32 Occurrence hierarchical path reference Property names Parts Spreadsheet New Apo Djblay Delete Property lt a SS A er iy Brn CR Henna a E HALFADD HALFADD 74L308 DEFAULT none halfadd_A17 TALSOB DEFAULT snone gt halfadd_B U33 74L508 DEFAULT snone gt HALFADD HALFADD 74L808 DERAULT none HALFADD HALFADD TALSO8 DEFAULT enone HALFADD HALFADD U TALSO4 DEFA LT none HALFADD HALFADD TALS04 DEFAULT none HALFADD HALFADD U3 1505679615 jl rr D pi DAG oO snone gt Arex Tie Beas Instance name tem selection tabs Property value schematic name page reference Figure 14 Property editor Editing properties 35 Chapter 2 The Capture work environment Note When you first start the property editor all instance properties are displayed Occur
249. rs The part names are case sensitive Use the Browse button to find the path and filename of the part s library Select the library name and click Open The path and library name appear in the Part Library text box Click OK Capture replaces the part instance you selected in step 2 with the library part you specified in steps 4 and 5 To update selected parts in the design cache so they match their corresponding library parts When you update parts in the cache any user defined properties are preserved The properties associated with the part in the library are updated including added and removed properties and property values 1 Ifit snot already open open the project containing the parts you want to update 2 Open the design cache and select the parts you want to update 3 From the Design menu choose Update Cache Capture warns you that you will update the selected parts with parts from their original libraries 4 Click Yes Capture updates the parts you selected in step 2 with their corresponding library parts Other projects that use these parts are not affected The design cache Note User defined properties indude any new property you added to the part in the design as well asthe Value Part Reference and PCB Footprint 199 Chapter 11 About libraries and parts For more information see Defining the default hierarchy option for new projects on page 4 76 Note If you attach a schematic folder to a
250. rt Properties Look in a Capture gt E A zsz Filename e Files of type Export File exp 7 Cancel I Open as read only Figure 77 Import Properties dialog box 3 4 280 Select the file containing the properties Choose the Open button The properties are imported Using Capture with OrCAD Layout 18 OrCAD Layout communicates interactively with Capture This chapter explains how to use Capture with Layout to perform back annotation forward annotation and cross probing When you make changes to your board in Layout you can back annotate some of that information to Capture using the Backannotation File SWP option in Layout s Generate Reports dialog box Select the Run ECO to Layout option in Capture s Create Tip You can also use Layout s AutoECO Netlist dialog box to automatically communicate changes command to forward annotate design you made in your Capture design to Layout Ifthe Layout properties part information and netlist file is open when you update the netlist file Layout changes to Layout from Capture For displays a dialog box asking if you want to load the new information on using this command see netlist file If the Layout file is not open when the netlist AutoECO in Capture s online help changes Layout prompts you to load the modified netlist when you reopen the Layout file You can also perform cross probing with Capture and Layout With cross probing you can sel
251. rty strings see Capture s online help property names in a property string must be enclosed in braces The remaining fields in the line are the properties to update on each part or net to be updated The combined property string and the property names entered in these fields must be enclosed in quotation marks Subsequent lines of the update file have this format MatchStringl Updatel Update2 MatchString2 Updatel Update2 The match string is the text used to compare with the values of the properties specified by the combined property string in the first line The update fields are the values placed in the properties specified in the first line if the match string matches the expanded combined property string These values must also be enclosed in quotation marks For example Value PCB Footprint 74LS00 14DIP300 74LS138 16DIP300 74LS163 16DIP300 8259A 28DIP600 This indicates that the property to use as a match string is Value Each time an object s Value matches the value listed in the left column of the update file the corresponding text in the right column is placed in the object s PCB Footprint property In this example each time a part has a value of 74LS00 the text 14DIP300 is placed in the part s PCB Footprint property each time a part has a Value of 74LS138 16DIP300 is placed in the part s PCB Footprint property and so on You can also use 243 Chapter 14 Preparing to create a
252. s along with other parts and symbols in the project that are logically connected via net names form a net When you place a wire it is assigned a system generated netname which you can replace with an alias or a different netname Once a bus acquires a valid name or alias then that name or alias defines the signals carried by the bus and connects those signals to the corresponding nets For example the alias A 0 3 defines a four signal bus and connects the four signals it carries with nets AO Al A2 and A3 Like wires buses can acquire names and aliases by two means e Direct application of a net alias with valid bus name e Electrical connection to a hierarchical port off page connector or global bus pin with a valid bus name Placing wires When you connect a wire to a pin Capture provides visual confirmation of the connection by removing the unconnected pin box on the pin If two continuous wires cross at 90 they are not electrically connected unless you create a junction by double clicking the left mouse button on one wire as you draw the other across it You can determine whether wires or buses that cross each other are connected by the presence or absence of a junction Unless a junction is present wires or buses that cross each other are not connected Likewise if you drag a net up to another net so that they touch the two nets are not connected unless you add a junction at the location where the nets meet Y
253. s then choose the Colors Print tab 2 Select the check box by the color for the object to be printed or plotted Clear the check box for the object to not be printed or plotted Objects are always displayed on your screen regardless of the setting of their check boxes 56 Defining your preferences To define an object s color 1 From the Options menu choose Preferences then choose the Colors Print tab 2 Click the left mouse button on the color of an item The color palette window opens Note The color that you select for Title 3 Select a new color Click OK to dismiss the color Block is also the color used for borders and palette grid references 4 Click OK Graphics objects lines polylines and arcs use the colors specified by Miscellaneous tab If the color options in the Miscellaneous tab are set to Default color then Capture uses the color specified for graphics by the Colors Print tab 57 Chapter 4 Setting up your project Note If you disable the Pointer snap to grid option while you are drawing be sure to enable it before you place electrical objects Otherwise your part pins may be placed off grid making it difficult to connect them properly Tip You can also show or hide the grid using the Grid command on the View menu in the schematic page editor or the part editor Tip You can toggle the snap to grid using the snap to grid toolbar button 58 Controlling the grid You can control whe
254. s is defined using the SDT Compatibility tab in the Design Template dialog box You can change this mapping for individual projects using the SDT Compatibility tab in the Design Properties dialog box choose Design Properties from the project manager s Options menu See Setting up compatibility with OrCAD s Schematic Design Tools on page 4 78 for more information Changing properties of existing projects Viewing design information Capture displays the following information about the active schematic page in the Miscellaneous tab of the Schematic Page Properties dialog box e The path and file name of the design e The name of the root schematic in the design e The creation time of your schematic page e The last time your schematic page was modified Fonts Hierarchy SDT Compatibility Miscellaneous Design Name C ORCADSCAPTURESTEST FULLADD DSN Root Schematic Name FULLADD Creation Time Tue Oct 06 13 53 32 1998 Modification Time Tue Oct 06 15 33 16 1998 Cancel Help Figure 31 Miscellaneous tab of the Design Properties dialog box You can also set Capture to display power pins for the purpose of documentation For more information see Viewing invisible power pins without isolating them on page 4 82 81 Chapter 4 Setting up your project Note To connect wires and other electrical objects to power pins you must make them visible on the part or instance Select the part and then from the Edit men
255. s on Open Schematics when a Probe window is automatically opened it will display traces corresponding to any markers in currently open schematics in Capture Last Plot reconstructs the Probe window that was last used to view results of this simulation profile Creating designs for PSpice simulation and board layout When creating designs for both simulation and printed circuit board layout some of the parts you use will be for simulation only for example simulation stimulus parts like voltage sources and some of the parts you use will have simulation models that only model some of the pins of the real device Parts that are to be used for simulation but not for board layout have a PSpiceOnly property To see an example of this double click a VDC voltage source to display the property editor spreadsheet You can add this or any properties to your own custom parts To specify part properties 1 Inthe schematic page editor select the part 2 From the Edit menu choose Properties to display the property editor spreadsheet 3 Add anew property named PSpiceOnly and set its value to True 4 Click OK Creating designs for PSpice simulation and board layout For more information on defining properties on part symbols see Editing parts on page 7 117 309 Chapter 19 Using Capture with OrCAD PSpice 310 Handling unmodeled pins Some parts used in PSpice simulation designs have unmodeled pins that have no
256. se steps a Locate and select a corresponding configuration CFG file If you are using the Custom tab select the appropriate translator Exporting and importing designs For more information about translating MicroSim Schematics designs and libraries see the book Converting MicroSim Schematics Designs to OrCA D Capture Designs Quick Start Note Use the PSpice tab for importing MicroSim Schematics designs and libraries Use the custom tab for using custom designed schematic translators 275 Chapter 17 Exporting and importing schematic data Tip Capture can import properties with or without quotation marks around each field in the property file The fields must be tab delimited though all other characters including commas and spaces are treated as part of a field s text Be sure your spreadsheet or database application can save in a tab delimited format Note Do not edit the project or library from which the properties were exported until after you import the changed properties If you do and the Import Properties procedure fails you will have to export and edit the properties again Tip It is important that you annotate your design before you export properties Note When you use the Export Properties command only non aliased parts are induded in the property file regardless of what you ve selected however once you run Import Properties the aliased parts change to match the non aliased parts 276
257. see Chapter 12 Creatin Pn a aircon pate and editing parts For information on the previous section The schematic page editor tool palette on how to use the drawing tools see page 2 20 Chapter 8 Adding and editing graphics and text 23 Chapter 2 The Capture work environment Table3 Tools on the part editor tool palette Tool Name Description IEEE Place IEEE symbols on a part Equivalent to the I Symbol IEEE Symbol command on the Place menu For more information see Adding graphics text and IEEE symbols to a part on page 12 209 7 Pin Place pins on a part Equivalent to the Pin al command on the Place menu For more information see Placing pins on a part on page 12 210 Pin Array Place multiple pins on a part Equivalent to the al Pin Array command on the Place menu For more information see Placing pins on a part on page 12 210 24 Displaying or hiding a tool palette Like the toolbar you can hide a tool palette then display it again when you need it To display or hide a tool palette 1 From the schematic page editor s View menu choose Tool Palette or From the part editor s View menu choose Tool Palette The tool palettes 25 Chapter 2 The Capture work environment Ready The status bar The status bar is located at the bottom of the Capture session frame and reports on current actions number of items selected zoom scale and pointer location 7 items s
258. selected the symbol name is followed by a slash and a library name When you select a symbol in this list its name displays in the Symbol text box and its graphic displays in the preview box Placing and editing power and ground symbols Libraries Lists the library names currently available Select the libraries from which to select power or ground symbols All symbols in the selected libraries that match the Symbol text box display in the Symbol list To select more than one library press while you click the mouse Preview box Displays the graphic of the selected symbol Add Library Displays a standard Open dialog box that you can use to locate a library and add it to the Libraries list Remove Library Removes the selected libraries from the Libraries list Name Assigns a name such as 5 GND 5VDC 12 VDC VSS or VEE to the symbol By default the name of the symbol is assigned Editing power and ground symbols You can change the name of a power or ground symbol by selecting the symbol on the schematic page and either choosing Properties from the Edit menu or choosing Edit Properties from the right mouse button pop up menu You can also double click the symbol This displays a dialog box in which you can edit the symbol s name then click OK You can also edit the display properties of the name of the Note You cannot assign user properties to power or ground symbol Select only the text of the power or groun
259. sign Properties or individual schematic pages using Schematic Page Properties Regardless of which Capture window is active the Options menu has a Preferences command and a Design Template command In addition the Options menu contains commands specific to the current active window For example the project manager s Options menu contains the Design Properties command while the schematic page editor s Options menu contains the Schematic Page Properties command Chapter 4 Setting up your project 54 The settings in the Preferences dialog box determine how Capture works on your system and persist from one Capture session to the next because they are stored in the Capture initialization INI file on your system If you pass projects to others they won t inherit your Preferences settings This means you can set colors grid display options pan and zoom options and so on to your liking and be assured that your settings will remain even if you work on a project created on another system The Design Template dialog box determines the default characteristics of all the projects created on your system Because a new project inherits characteristics from the current Design Template settings it s a good idea to check the settings before you create a new project Once you begin working on a project you can customize its particular characteristics by choosing Design Properties from the Options menu when you are in the project
260. sources or Output folder selected choose Save from the File menu The project is saved and remains open in the Capture session frame Closing a project Closing a project When the project manager window is active you can close a project without quitting Capture or you can close and save your project as you quit To close a project 1 From the project manager s File menu choose Close Project When you close a project a dialog box displays asking if you want to save your changes To quit Capture 1 From the project manager s File menu choose Exit When you choose the Exit command a dialog box displays asking if you want to save your changes e Choose Yes to save the specific document within the project e Choose Yes All to save all documents in the project e Choose No to close the document without saving it e Choose No All to close all open documents without saving them e Choose Cancel to abort closing the project 51 Chapter 3 Starting a project 52 Setting up your project Capture provides different levels of configuration Using commands on the Options menu you can e Customize the working environment specific to your system using Preferences e Create default settings for new designs using Design Template These settings stay with the design as design properties even if it is moved to another system with different preferences e Override settings in individual designs using De
261. splay in a window called the schematic page editor in which you can place parts and draw wires The editor used to create and edit schematic pages The window in which various tool elements such as the session log project manager schematic page editor and part editor run A window that displays text messages generated by Express or Express Simulate such as errors and informational messages The session log starts empty with each new session but you can save its contents to a text file An electrical impulse of a predetermined voltage current polarity and pulse width Also a VHDL term for a local circuit node that is not visible outside a VHDL design unit A wire or bus that is not connected to a hierarchical port will produce a VHDL signal A design in which there is a one to one correspondence between hierarchical blocks or parts with attached schematic folders and the schematic folders they reference Each hierarchical block or part with an attached schematic folder represents a unique schematic folder See also hierarchical design complex hierarchy The path and filename where a part s definition resides A filename with an OLB extension indicates that the part was placed as is from the library A filename with a DSN extension indicates that the part no longer matches the original library part and the changed part s definition only resides in the project where the part was edited A window used to e
262. supplied functionality of Capture if you purchase software developed by associates of OrCAD These associates create DLL files that address specific Capture functionality such as customized netlist creation The associates configure their DLL files so that they are listed as menu choices on the Accessories menu available in either the project manager window or the schematic page editor once you install the third party extension Starting a project A project file OPJ stores pointers to a single design file DSN and can also contain libraries VHDL files and output reports associated with the design file A design file contains one or more schematic folders in which there are one or more schematic pages A design file also contains a design cache which is like an embedded library it contains a copy of all the parts and symbols used on the schematic pages When a design is saved with the project file information from the various Tools dialog boxes is also saved in the project file Note Parts reside ina library the same way schematic pages reside in schematic folders Symbols and title blocks also reside in libraries A project can use any number of libraries and a library can be included in any number of projects However a project may have only one design DSN Chapter 3 Starting a project Note The project types available to you will depend upon which OrCAD programs you have installed Asa minimum you will have the
263. t body border later To draw the part 6 Once you have established the part s border you can use the drawing tools on the part editor s tool palette to draw the part and place text on the part All graphics that make up the part must fit within the boundaries of the part body border with the exception of IEEE symbols and text If you draw or place something other than IEEE symbols or text outside of the part body border the part s border expands to encompass the graphics To place pins on the part 7 You can add pins to the part using the pin tool or the pin array tool This is described in Placing pins on a part on page 12 210 later in this chapter When you are done creating the part you must save it From the File menu choose Save If you are creating this part in a new library that hasn t yet been saved the Save As dialog box appears giving you the opportunity to name the library file If you are creating this part in a library that already exists the part is saved in that library Creating a new part 205 Chapter 12 Creating and editing parts Tip After you have defined the part in the New Part Properties dialog box you can edit the part except for changing the Package Type using the Edit Part Properties dialog box From the View menu choose Package then from the Options menu choose Package Properties Note Once you decide if the part has a convert view and click the OK button to clos
264. t necessary to run Capture and Layout simultaneously to take advantage of forward annotation It takes a minimum of 64 MB of RAM to run both Capture and Layout If Capture is unable to create an MNL file the errors are written to the Capture session log and to the ERR file in the target directory for the MNL file 291 Chapter 18 Using Capture with OrCAD Layout Loading a new netlist into Layout For information on loading a new netlist into Layout see Capture s online help topic Creating a new Layout project from a Capture design 292 Back annotating board information from Layout When you add new parts to your Capture design use the Incremental reference update option in the Update Part References dialog box as opposed to the Unconditional reference update option when you update part references In Layout you can back annotate board changes for Capture using the OrCAD Backannotation File SWP Once the SWP file is created the current Layout file no longer contains swap information A copy of the board file is saved as BACKANNO MAX To back annotate 1 From Layout s Auto menu choose Back Annotate A dialog box appears that prompts you to save the Layout design Saving the design maintains the link between Layout and Capture 2 From Capture s Tools menu choose Back Annotate The Back Annotate dialog box appears 3 Ensure that the Process entire design option is enabled 4 Choose the Browse butt
265. t the window To center the view on an object or area 1 Select objects or an area 2 From the View menu choose Zoom then choose Selection The display scrolls so that the selected objects or selected area is in the center of the window The zoom scale does not change To center the view on your pointer 1 Press lt Shift C The display scrolls so that the pointer s selection is in the center of the window The zoom scale does not change Moving to a new location There are several different ways you can move to a new location on a schematic page To move using the methods listed below use the Go To command and dialog box You can e Move toa particular set of X Y coordinates or to an X Y location offset from the pointer s current position e Move toa grid reference area as indicated by the horizontal and vertical grid reference headings e Move toa location previously marked by a bookmark From the View menu choose Go To to display the Go To dialog box which has three tabs labeled Location Grid Reference and Bookmark shown below and on the next page Moving to an X Y location The X and Y coordinates of your pointer s current location appear on the right side of the status bar To move to a specific location 1 From the View menu choose Go To The Go To dialog box appears 2 Choose the Location tab 3 Enter the X and Y values select the Absolute option then click OK The coordinates
266. ted to this off page connector Add Library Displays a standard Open dialog box that you can use to locate a library and add it to the Libraries list Remove Library Removes the selected libraries from the Libraries list Editing off page connectors You can edit an off page connector after it is placed by selecting it and either choosing Properties from the Edit menu or choosing Edit Properties from the right mouse button pop up menu You can also double click the off page connector This displays the Edit Off Page Connector dialog box which lets you change the Name Once you have finished editing the information in the Edit Off Page Connector dialog box click OK You can also edit the display properties of the text associated with the off page connector Select only the text of the off page connector then either choose Properties from the Edit menu or choose Edit Properties from the right mouse button pop up menu You can also double click the off page connector This displays the Edit Off Page Connector dialog box Once you have finished editing the properties click OK You can click an off page connector and move it to another location You can also use both the Mirror and Rotate commands from the Edit menu to change the appearance of the off page connector Placing and editing off page connectors Tip If you move the text of a hierarchical port it will snap to the grid To return it to its correct position with respect
267. ter 1 From the File menu choose the Print Setup command Select an appropriate printer or plotter or change the printer settings if necessary and then click OK Note Capture can send output to any print driver that Windows supports For additional information on print drivers see the documentation included with Microsoft Windows Note To install and remove printers and plotters and to set additional printing options see the documentation included with Microsoft Windows regarding the Windows Control Panel Chapter 5 Printing and plotting 88 Printing or plotting schematic pages You can print or plot a schematic page or several schematic pages from the project manager To print or plot a schematic page or pages 1 4 Activate the schematic page editor window for the page you want to print or In the project manager select the schematic page or pages or If you want to print all the pages in the design select the design name in the project manager From the File menu choose Print The Print dialog box appears Select the scale print offsets print quality number of copies and whether to print to file Click OK to send the image to the output device Printing or plotting parts or packages Printing or plotting parts or packages With the part editor active and open to a specific part or package you can create a print or a plot of that part or package You can also print a library part from th
268. ter Sew S Input Port Ww fE IEn EE 3 Bidirectional Port Ft Output Pot wi ff ff td 3 Open Collector Pot J J J AA g Passive Port Wi w JEN JEB TE w w EE w w w wi Figure 69 ERC tab of the Design Rules Check dialog box Tip You can also typeW for warning Efor You use the ERC matrix to set the electrical rules that error and N for an empty intersection In Design Rules Check uses when testing connections addition you can use the arrow keys to between pins hierarchical ports and off page connectors select other intersections All types of pins hierarchical ports and off page connectors are listed in the columns and rows in the table A test is represented by the intersection of a row and column Either the intersection is empty or it contains a W or it contains an E e An empty intersection represents a valid connection in which case nothing is reported if you specify a report file e AW represents a warning e AnE represents an error DRC errors and warnings are explained in You can cycle through these settings by pointing to an greater detail in Capture s online help intersection and clicking the mouse button until the Search for Error messages desired setting appears For all rows except the 250 Checking for design rules violations Unconnected row the DRC reports an error or warning for any net that has two connections as specified in the ERC matrix For example consider the dialog box above If a
269. text associated with a wire 1 Select only the text of the wire then either choose Properties from the Edit menu or choose Edit Properties from the right mouse button pop up menu You can also double click the text 2 This displays a Display Properties dialog box 3 Once you have finished editing the properties click OK To move a wire select it and drag it to a new location the wire stretches to maintain its connectivity To break the wire s connectivity press Alt while you move it To move a vertex select a wire segment next to the vertex and drag the vertex to the new location Placing buses A bus is a group of scalar signals wires and is never connected to a net Once the bus acquires a valid name or alias then that name or alias defines the signals carried by the bus and connects those signals to the corresponding nets For example the alias A 0 3 defines a four signal bus that connects the four bus signals to the individual wires named AO Al A2 and A3 Net aliases on wires do not use brackets To place a bus 1 From the schematic page editor s Place menu choose Bus or Choose the bus tool on the schematic page editor s tool palette 2 Click the left mouse button to start the bus 3 Move the mouse to draw the bus Click the left mouse button if you want to place a vertex and change directions or to connect to another bus as you pass over it The bus is constrained to multiples of 90 unless
270. the Preferences dialog box 56 Grid Display tab of the Preferences dialog box 58 Pan and Zoom tab of the Preferences dialog box 59 Select tab of the Preferences dialog box 61 Miscellaneous tab of the Preferences dialog box 63 Text Editor tab of the Preferences dialog box 66 Fonts tab of the Design Template dialog box 69 Title Block tab of the Design Template dialog box 70 Title plekso 6 4 ek Bk RS Ow oS EE SE G 71 Page Size tab of the Design Template dialog box 72 Grid Reference tab of the Design Template dialog box 74 Hierarchy tab of the Design Template dialog box 76 SDT Compatibility tab of the Design Template dialog box 78 Miscellaneous tab of the Design Properties dialog box 81 Miscellaneous tab of the Schematic Page Properties dialog box 84 Figures Figure 33 Figure 1 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73 xii An abstract representation of a s
271. the Tools menu For more information see Back annotating on page 14 254 lt 2 Design Rules Check Check for design rules violations on the selected schematic pages Equivalent to the Design Rules Check command on the Tools menu For more information see Checking for design rules violations on page 14 244 Create Netlist Cross Reference Create a netlist for the selected schematic pages Equivalent to the Create Netlist command on the Tools menu For more information see Using the Create Netlist tool on page 15 259 Create a cross reference report for the selected schematic pages Equivalent to the Cross Reference command on the Tools menu For more information see Creating a cross reference report on page 16 270 Bill of Materials Create a bill of materials report for the selected schematic pages Equivalent to the Bill of Materials command on the Tools menu For more information see Creating a bill of materials on page 16 265 Snap to Grid Toggle schematic page and part editing to either on or off grid Project Manager Display the project manager window for the active document providing an overview of project contents Equivalent to choosing a project manager window by number from the Window menu Help Topics Open online help Equivalent to the Help Topics command on the Help menu 18 Displaying or hiding the toolbar You can hide the toolbar then display it again
272. the library property you will need to edit the Reference property the Designation property or both The Part Reference property is a read only property that Capture calculates from the Referenceand Primitive Default indicates that the part uses the Designator values setting in the Hierarchy tab of the Design Properties 118 Reference Specifies the part reference Placing and editing parts dialog box Yes indicates that the part is primitive No indicates that the part is nonprimitive Designator Indicates which part of a multiple part package you are editing PCB Footprint The PCB physical package name to be included for this part in the netlist Power Pins Visible Specifies the visibility of the part s Note For information on power pin power pins visibility and how it affects a global net see the Capture online help Implementation Type Specifies if the part has an attached schematic folder or other implementation and the type of implementation if one exists Implementation types include schematic folders VHDL entities netlists and PSpice models Caution An attached schematic folder or other file external to the project or library is not stored with the project or library If you copy or move the project or library to a new location you must also move or copy the attached object to Keep them together In addition you may need to edit the path to the attached schematic folder or file if you move the project to a new
273. the pointer to an edge of the intended ellipse 3 Press and hold the left mouse button while you drag the mouse The ellipse changes shape as you move the mouse If you want to draw a circle hold down the key while you perform this step Release the left mouse button when you have the correct shape The ellipse appears in the selection color 4 Choose the selection tool or press to dismiss the ellipse tool To resize an ellipse or circle Use the selection tool to select an ellipse or a circle Edit handles appear on all four corners of the rectangle that encloses it With the pointer on one of the handles press the mouse and drag the handle 151 Chapter 8 Adding and editing graphics and text 152 Draw ing arcs You create an arc of any angle using the arc tool Because it is a line an arc adopts the current line style If you want to create a full circle use the ellipse tool Drawing an arc is done in three stages 1 2 Specify the center of the arc with the first mouse click Specify the radius of the arc with the second mouse click Specify the arc segment endpoint with the third mouse click Capture draws the arc counterclockwise from the endpoint and displays in the selection color To draw an arc 1 From the Place menu choose Arc or Choose the arc tool on the tool palette Move the pointer to establish the center of the arc and press and hold the left mouse button Drag the mouse out from t
274. the text so that it displays in the selection color with edit handles at the four corners 2 From the Edit menu choose Properties The Edit Text dialog box appears with the text highlighted 3 Enter the replacement text then click OK Importing text You can import text from any Windows program that copies text to the Clipboard To import text from other Windows applications 1 Inthe other Windows application copy the text to the Clipboard using that program s Copy command 2 Make the schematic page editor or part editor the active window 3 From the Place menu choose Text The Place Text dialog box appears 4 Press Cirl V to paste the text into the text box then verify that the color font and rotation are as you want them and click OK A rectangle representing the text is attached to the pointer 5 Click the left mouse button to place the text at the desired location 6 When you are done placing text press or choose the selection tool Exporting text You can export Capture text to any Windows program that uses the Clipboard You must select the text within the Edit Text or Place Text dialog boxes Otherwise copying a text object treats the text as a graphic To export text to other Windows applications 1 In Capture double click the text you want to export Capture displays the Edit Text dialog box 2 Select the text 3 From the Edit menu choose Cut or Copy The text is placed on the Clipboard
275. ther Capture displays a grid independently in the schematic page editor and the part editor and whether the grid uses dots or lines You can also specify whether the pointer snaps to grid in each editor Preferences x Pan andZoom Select Miscellaneous Text Editor r Schematic Page Grid Part and Symbol Grid Visible Visible I Displayed IV Displayed Grid Style Grid Style Dots C Lines Dots C Lines IM Pointer snap to grid M Pointer snap to grid Cancel Help Figure 19 Grid Display tab of the Preferences dialog box To control the grid 1 From the Options menu choose Preferences then choose the Grid Display tab 2 For the schematic page editor and the part editor specify e Whether to display the grid e Whether the grid uses dots or lines e Whether the pointer snaps to grid as you place objects 3 Click OK Setting pan and zoom When you have an object attached to the pointer and you move the pointer near the edge of the window while holding the left mouse button down the display changes to a different region of the document This change is called panning The display automatically pans only if you hold the left mouse button down whether or not an object is attached to the pointer otherwise you must use the window s scroll buttons to view a different region of the document You configure the percent by which the display changes using the Auto Scroll Per
276. ting parts and electrical symbols Si FULLADD DSN FULLADD SCH I Ea halfadd_A Y CARRY HALFADD SCH prea Note Before you create or resize a hierarchical block make sure the Snap to grid option is turned on by choosing Preferences from the Options menu If the hierarchical block is off grid then hierarchical pins inside it are also off grid even if you change the Snap to grid setting before you place them and it may be difficult to connect to these off grid hierarchical pins 102 Connecting schematic folders and schematic pages In Capture you connect schematic folders and schematic pages by extending nets between them using hierarchical blocks or parts with attached schematic folders hierarchical ports hierarchical pins and off page connectors Hierarchical blocks or parts with attached schematic folders hierarchical ports and hierarchical pins carry signals between schematic folders and schematic pages in a hierarchy while off page connectors carry signals between schematic pages within a single schematic folder of a flat design Hierarchical blocks Hierarchical blocks or parts with attached schematic folders refer to child schematics in a design providing vertical downward pointing connection only Hierarchical pins in a hierarchical block and hierarchical ports outside a hierarchical block act as points of attachment for electrical connections between the hierarchical blo
277. tion produces text that is printed or plotted quickly but is not as aesthetically pleasing as TrueType text For this reason you may want to enable the option when you print or plot drafts of your schematic pages then disable the option when you print or plot the final versions of your schematic pages 64 Line Style and Width Select the line style and width used for lines polylines rectangles ellipses and arcs For the schematic page editor set this option Color Select the color used for graphic objects rectangles ellipses and closed polylines Set the following options Project Manager and Session Log Select a font for display text in the project manager and session log If you select this option a standard Windows dialog box for font selection appears Select a font style and size from the dialog box then click OK Text Rendering The text rendering options affect how text on a schematic page appears on your screen and how it is printed or plotted The Render TrueType fonts with strokes option displays text as a series of lines connected to resemble the outlines of the corresponding TrueType letters or numbers they represent Enabling the Fill text option causes the text outlines to be filled in Auto Recovery Select whether to enable auto recovery for your project and if so the interval between saves You can specify any interval between five minutes and 120 minutes When the time interval is up a
278. to the off page connector select the symbol use the Mirror command on the Edit menu or turn snap to grid off and move the text back into place Note You can create custom power ground and other symbols for hierarchical ports off page connectors title blocks and power objects by using the New Symbol command from the Design menu in the project manager window For information on how to use this command see the Capture online help 139 Chapter 7 Placing editing and connecting parts and electrical symbols Note For more information about placing and connecting wires and buses see Capture s online help 140 Placing and connecting wires and buses Two wires or two buses can be connected physically by the following methods e If you cross a wire segment of another wire and add a junction where the wires meet a junction displays and the wires connect e If you begin or end a wire segment on a segment of another wire a junction is added automatically and the wires are connected e If you begin or end a bus segment on a segment of another bus a junction is added automatically and the buses are connected A wire and a bus can be connected in name only by the following methods e If you begin or end a wire segment on a segment of a bus a junction is added and they will be connected e If you begin or end a bus segment on a segment of a wire a junction is added and they will be connected Wires and buse
279. to your system how to create default settings for new designs and how to override default settings in individual designs Chapter 7 Placing editing and connecting parts and electrical symbols describes how to place and edit parts and symbols It also describes how to connect the elements of your design using hierarchical blocks hierarchical ports off page connectors wires and buses Chapter 8 Adding and editing graphics and text describes the drawing tools you can use to add text and a variety of graphic shapes to your design Chapter 9 Using macros describes how to create and run macros Chapter 10 Changing your view of a schematic page describes how to view specific areas of a schematic page using the Zoom command It also describes jumping to different locations within a schematic using the Location Reference and Bookmark commands Design structure Many schematic designs can fit on one schematic page Some designs however are too large for even the biggest page and even if a complex design could fit on one page there are good reasons for dividing it To fit at full scale on your printer s page To partition a design so that several people can work on it at once To develop the design using a top down approach That is you may want to begin with a block diagram in which each block represents a major function and then construct more detailed diagrams for each block To organize your design by
280. tor 3 Click OK Zooming to a specified scale The Zoom Scale dialog box provides predefined scales 25 50 100 200 300 and 400 You can also type in a custom scale value as a percentage The scaling limits the size of the schematic page that appears for example if 1 unit 01 then you can display 320 at 100 160 at 200 80 at 400 and so on To zoom to a specific scale 1 From the View menu choose Zoom then choose Scale The Zoom Scale dialog box appears 2 Select one of the preset scales or enter a custom scale 3 Click OK Other viewing options You can view a selected area or the entire page or you can center your view To view a selected area 1 From the View menu choose Zoom then choose Area or Choose the zoom area tool on the toolbar 2 Move the pointer to one corner of the area to view 3 Press and hold the left mouse button as you move the pointer to the opposite corner of the area to view 4 Release the mouse button The area expands to fill the window Zooming Tip You can view the current scale in the status bar at the bottom of the schematic page editor window It displays to the left of the X and Y coordinates 181 Chapter 10 Changing your view of a schematic page 182 To view the entire page or part 1 From the View menu choose Zoom then choose All or Choose the zoom all tool on the toolbar The entire schematic page or part shrinks or expands to fi
281. ts them or if the objects are selected only when they are completely enclosed in the selection area You can also change the maximum number of objects displayed at high resolution while dragging and set tool palette visibility in both the schematic page editor and the part and symbol editor Preferences Ea Colors Print Grid Display Pan and Zoom Miscellaneous Text Editor m Schematic Page Editor r Part and Symbol Editor Area Select Area Select Intersecting Intersecting C Fully Enclosed C Fully Enclosed Maximum number of objects to display Maximum number of objects to display at high resolution while dragging at high resolution while dragging fi 0 fio Vv Show Palette IV Show Palette Cancel Help Figure 21 Select tab of the Preferences dialog box To define selection options 1 From the Options menu choose Preferences then choose the Select tab 2 For the schematic page editor and the part editor set these options e Area Select Specify whether to select objects that are inside and intersecting the selection border or ly obj h full l he selecti only objects that are fully enclosed by the selection set th Maximum number of objets to border display at high resolution while dragging to e Maximum number of objects to display at high a large number resolution while dragging If you drag more Note Capture may perform slower If you 61 Chapter
282. ture with OrCAD PSpice 302 Specifying simulation model libraries Refer to the Creating and editing models chapter of the OrCA D PSpice User s Guide for information about creating and configuring simulation model libraries Most of the parts that you intend to simulate must have a simulation model defined To check if a part has a simulation model defined 1 Double click the part on the schematic page to display the property editor spreadsheet If a simulation model is available for a part the part will have e A PSpiceTemplate property specifying the PSpice simulation netlisting syntax for the part e The implementation type set to PSpiceModel e An implementation property specifying the name of the model or subcircuit The simulation model specified by the implementation property must be contained in a model library that is configured Creating a design for PSpice A D simulation Creating a design for PSpice A D simulation When creating designs for PSpice A D simulation use Capture s Analog or Mixed Mode Project Wizard to assist you in setting up your project Only use parts from libraries specifically created for PSpice or your own libraries These libraries can be found in your PROGRAM FILES ORCAD CAPTURE LIBRARY PSPICE directory For analog circuits use the 0 ground symbol found in SOURCE OLB or use one of the other ground symbols and rename it to 0 To create a new PSpice A D design
283. u choose Properties Select the Power Pins Visible option and click OK If you connect a wire or other electrical object to a power pin made visible by this method that pin is isolated from the global net 82 Viewing invisible power pins without isolating them Normally power pins are invisible and thus global Selecting the Display Invisible Power Pins for documentation purposes only option in the Miscellaneous tab will display the pins on the screen and they are still considered global However you can only view the power pins you cannot connect to them To view invisible power pins without isolating them 1 From the project manager s Options menu choose Design Properties then choose the Miscellaneous tab 2 Select the Display Invisible Power Pins option 3 Click OK Changing properties of existing schematic pages When you add a new schematic page the options defined in the Design Template dialog box are used You can override these options on existing schematic pages by using the options in the Schematic Page Properties dialog box You access this dialog box by choosing Schematic Page Properties from the schematic page editor s Options menu The options in the Schematic Page Properties dialog box are e Page Size You can specify the unit of measure and the page size e Grid Reference You can set the number of horizontal or vertical border grid references to display whether the grid references are alphab
284. u choose New then choose Design Note A project cannot have more than one design DSN file If you try to add a The design opens in anew PCB project manager anda second DSN file to your project the new schematic page displays Overwrite dialog box appears asking if you want to replace the existing design To create a new schematic page 1 On the File tab of the project manager select the schematic folder that requires a new schematic page Click the right mouse button and choose New Page from the pop up menu A new schematic page appears within the schematic folder you selected in step 1 To create a new library 1 2 From the File menu choose New then choose Library For information on how to create parts for indusion in a library see Chapter 12 The library opens in the project manager and a Library Creating and editing parts yreaung and ediling parts Cache folder is added to the project manager or the library opens in the existing open project manager and a library cache is added To create a new VHDL file There are two ways to create a new VHDL file in Capture 1 From the File menu choose New then choose VHDL File A VHDL file opens in Capture s VHDL programmer s editor With the project manager active choose New VHDL File from the Design menu The file opens in the VHDL programmer s editor and a dialog box appears asking if you want to add the file to the project Choose the Yes butto
285. ure File View Edit Options Window Help Osa a ale 2e SILAS uy Session Log Elf Ea Ready Session Log Ui Figure 1 Capture s session frame The minimized Session Log icon in the lower left portion of the Capture session frame is the session log The session log provides information about everything you have done in the current Capture session Detailed information about this window and the other windows in Capture is given in Chapter 2 The Capture work environment In Capture each design that you open is in a separate project manager window If you need to work simultaneously with several designs you can open them all and each will have its own project manager window Depending on which type of window you have active an active window is one whose title bar is highlighted certain buttons on the toolbar and certain items on the menus may be unavailable since you perform tasks and use tools based upon the type of window that is active Also the menus and menu choices vary depending on which type of window is active The available menus and menu choices will also vary depending upon the type of project you are working with The Capture work environment This chapter describes the things you need to know to find your way around in Capture It shows the windows you ll see in Capture the project manager the schematic page editor the part editor the text editor and the session log It also introduces you to the t
286. urrent Capture session unless you assign it a macro name and save it using either Save or Save As Play Runs the active macro Add Displays a dialog box that you use to add a macro you have created The macro must be in ASCII text and use valid Visual Basic syntax A newly added macro is highlighted in the list of macros and becomes the active macro Remove Removes a macro from the list of permanent macros but does not remove the macro from your hard disk Save Updates an existing macro on your hard drive or saves a temporary macro to your hard drive Saving a macro adds it to the list of configured macros and makes it the active macro Save As Displays a Macro Name dialog box that you use to assign the macro a name keyboard assignment menu assignment and description Saving a macro adds it to the list of configured macros and makes it the active macro Keyboard Assignment Specifies the shortcut key associated with the macro You can specify a shortcut key for a temporary macro recording or change the shortcut key used for an existing macro by entering the text equivalent of a keyboard sequence in the Keyboard Assignment text box 173 Chapter9 Using macros 174 Menu Assignment Specifies the menu assignment associated with the macro You can specify a menu assignment for a temporary macro recording or change the menu assignment used for an existing macro by entering a menu entry in the Menu Assignment text box Desc
287. urrent situation w sel 16 Figure 9 Capture s toolbar Some of the tools operate only on what you have selected while others give you a choice of either operating on what is selected or expanding the scope to the entire project Table 1 summarizes the tools on the toolbar The tasks that these tools perform are described throughout this manual The toolbar Table1 Tools on the Capture toolbar Tool Name Description New Create a new document based on the active document Similar to the New command on the File menu For more information see Creating new projects designs libraries and VHDL files on page 3 44 we Open Open an existing project or library Similar to the Open command on the File menu For more information see Opening existing projects designs libraries and VHDL files on page 3 47 El Save Save the active document schematic or part Equivalent to the Save command on the File menu For more information see Saving projects designs and libraries on page 3 50 A Print Print the selected pages in the schematic folder or the active schematic page or part Equivalent to the Print command on the File menu For more information see Chapter 5 Printing and plotting Cut Remove the selected object and place it on the Clipboard Equivalent to the Cut command on the Edit menu Copy Copy the selected object to the Clipboard Equivalent to the Copy E command
288. use with Layout 283 Transferring user defined properties to Layout 284 Creating a netlist for use in Layout dees iden beavers 291 Loading a new netlist into Layout aooaa a 292 Back annotating board information from Layout 293 Forward annotating schematic data to Layout oaaae 294 Cross probing between Capture and Layout 295 Enabling intertool communication between Capture and Layout 295 Cross probing from Capture to Layout oaaao 296 Cross probing from Layout to Capture aoaaa 298 G neral rules si oe eG PG a e SEER ERS ES a 300 Using Capture with OrCAD PSpice 301 Overview sereg heg Se bk ye AeA acer e Bee a he a 301 Specifying simulation model libraries aoaaa aa 302 Contents Creating a design for PSpice A D simulation 303 Editing simulation models from Capture 00 304 Adding and defining stimulus 0 24 ede RARE Cae RE SS 305 Placing stimulus sources 44 4 fos AY Oe ee ea RR RO a Ge ee 305 Using the Stimulus Editor 2 4 82 a 4 2 048 2444244225 305 Setting up and running analyses 4 0 24 ewe Ob wow he a ee 306 Viewing results o s s p s sob ode aoa Ee ee ee RR es 307 Viewing results as you simulate 0040 307 Using markers cc a g is haona RRR EER ORES HOR AO 307 Configuring the display of simulation results 308 Creating designs for PSpice simulation and board layout 30
289. width scalar or bus and visibility The pin type is used by the Design Rules Check command on the Tools menu to check conformance to basic electrical rules Note A part without pins will not snap to grid when placed on a schematic page A primitive part is a basic part without any underlying hierarchy A nonprimitive part is a part that has an underlying hierarchy such as an attached schematic folder PSpice model or VHDL code Placing a nonprimitive part adds all its underlying hierarchy to your project without moving the actual schematic folders making it easy to add levels of hierarchy to your project 112 Placing parts You select parts from libraries and place them on schematic pages using the Part command on the Place menu or using the part tool on the schematic page editor tool palette To place a part 1 From the schematic page editor s Place menu choose Part or Choose the part tool on the schematic page editor s tool palette The Place Part dialog box appears Select a part from the list that appears or In the Part text box type the name of the part If you aren t sure of the name of the part enter wildcard characters to constrain the list of parts then click OK Valid wildcard characters are an asterisk to match multiple characters and a question mark to match a single character After you type the name of the part to be placed click OK All parts in the libraries listed in the
290. wse Figure 47 Place Hierarchical Block dialog box Reference The name of the hierarchical block If you place a zero as the last character of the Reference Capture increments this number when the hierarchical block is copied Primitive Default indicates that the part uses the setting in the Hierarchy tab of the Design Template dialog box Yes indicates that the part is primitive and contains no underlying hierarchy No indicates that the part is nonprimitive and contains underlying hierarchy User Properties Displays a dialog box that you can use to edit the part s property names and their respective property values Implementation Type Specifies the type of implementation from one of the following Schematic View Indicates that the attached implementation is a schematic folder Capture will automatically generate the appropriate hierarchical pins for the block based on the schematic ports VHDL Indicates that the attached implementation is a VHDL entity Capture will automatically generate the appropriate hierarchical pins for the block based on the port declarations in the VHDL entity EDIF Indicates that the attached implementation is an EDIF netlist If your design includes EDIF implementations for hierarchical blocks you must specify the hierarchical pins for the block Capture will not generate them from the EDIF netlist Project Indicates that the attached implementation is a programmable log
291. y the Browse spreadsheet editor from the project manager s Edit menu The particular Browse spreadsheet that you display depends on the object you select from the Browse pull right menu The options include e Hierarchical ports Off page connectors e DRC markers e Bookmarks e Part including hierarchical block occurrences e Net including constituent nets within a bus occurrences e Pin occurrences e Title block occurrences The Browse spreadsheet editor browses the entire design for the objects you select then displays their properties Each property appears as a column heading in the spreadsheet Each row is an object located by the editor It is important to note that in the Browse spreadsheet editor you can only edit properties for occurrences To edit instance properties you must use the property editor discussed in The property editor on page 2 35 Editing properties To create a new property in the Browse spreadsheet editor 1 In the first column of the Browse spreadsheet select the object or occurrence for which you want to create the new property From the Edit menu choose Properties Capture displays the object in a new Browse spreadsheet window Click New Capture displays the New Property dialog box Enter a name and value for the new property then click OK Capture adds the property to the object or occurrence and displays the new property in the original Browse spreadsheet To copy a value f
292. ymbol is attached to your pointer You can press the right mouse button to Creating a new part For details about each of the graphic and text tools see Chapter 8 Adding and editing graphics and text When you place graphics in a part they must be within the part s body If they don t fit within the part s body the part body border expands to enclose the graphics Bit map images placed in part bodies create huge print and plot files and can slow down screen redraws due to the increased volume of data Tip Like the schematic page editor the part editor can display the part you are working on at several levels of detail J ust use the Zoom command on the View menu or the right mouse button pop up menu O Yo WS IJL 209 Chapter 12 Creating and editing parts Tip Once you ve placed an IEEE symbol you can change its size and shape by selecting it and dragging its selection handles Tip For easy accurate placement of pins confine the movement of your cursor to the part body border 210 display a pop up menu with commands that you can use to change the appearance of the symbol before you place it You can mirror the symbol horizontally or vertically rotate the symbol or choose another IEEE symbol to place 3 Move the pointer on your part to where you want the symbol and click the left mouse button to place the symbol You can place multiple instances of the symbol by clicking the left mouse button each
293. you hold down the key while you draw the bus 4 Double click to end the bus 5 Highlight the bus then choose Net Alias from the Place menu Enter an alias for the bus in the Place Net Alias dialog box that appears then click OK 6 When you are done placing buses choose the selection tool or press to dismiss the bus tool Placing and connecting wires and buses Note Busnamesand aliases have the form X m n X represents the base name The portion m n represents the range of signals carried by the bus Note that m may be less than or greater than n In other words both A 0 3 and A 3 0 are valid bus aliases You can use two periods a colon or a dash to Separate m and n Do not use two digits for single digit signals for example use A 0 3 but don t use A 00 33 See Bus naming conventions in the Capture online help for more information 143 Chapter 7 Placing editing and connecting parts and electrical symbols 144 Editing buses Select the bus and either choose Properties from the Edit menu or choose Edit Properties from the right mouse button pop up menu You can also double click the bus Capture displays the property in which you can add or change the bus s properties These changes can be applied to the schematic page by clicking Apply or returning to the schematic page editor You can also edit the display properties of the text associated with the bus Select only the text of
294. your design select the pages to process in the project manager 3 From the project manager s Tools menu choose Update Properties The Update Properties dialog box displays 4 Set the options in this dialog box as necessary You can specify whether to process the entire project or just the schematic pages selected in the project manager and whether to update parts or nets You can customize your update further by specifying that your comparison and update strings be converted to uppercase You can also have Capture create a report file listing the properties that it changes You must specify the name of the update file containing the properties to match and the text to place in the Updating properties 239 Chapter 14 Preparing to create a netlist specified properties These options and others are described in the section Update Properties dialog box Click the Browse button to the right of the Property Update File text box to locate your update file 6 When the dialog box has the settings you want click OK Capture updates the properties you specified If you set up the dialog box to create a report file you can use a text editor to view the file when the Update Properties tool is done 240 Updating properties Update Properties dialog box r Scope Mode Process entire design Update Instances a C Process selection Update Occurrences Preferred Action Update parts Update nets I Us
295. yout option in the Layout tab in the Create Netlist dialog box For information on this option see the OrCAD Layout for Windows User s Guide 294 Forward annotating schematic data to Layout A copy of the LAYOUT INI file from the Layout directory must exist in the same directory as CAPTURE EXE to correctly perform forward annotation to Layout To forward annotate 1 From Capture s Tools menu choose Create Netlist The Create Netlist dialog box appears Choose the Layout tab then click OK In Layout s session frame choose Tools then ECO s then one of the AutoECO options The File A dialog box appears Select a MAX file to which you want to add the new schematic information then choose the Open button The File B dialog box appears Locate and select the netlist MNL that you created in step 2 then choose the Open button The Output report dialog box appears Specify a name for the output report usually design_name LIS and a location then choose the Save button The output report displays in a text editor and the Merged Output Binary dialog box appears Specify a name and a location for the merged board then choose the Save button Layout merges the files based on the type of AutoECO you chose Read the output report carefully The changes listed there should match the edits you made to your Capture design Cross probing betw een Capture and Layout Using cross probing you can select an object
296. ype the additional text When you are done click OK 162 Placing text Finding text You can use the Find command to search for text in an entire project in selected schematic pages on one schematic page or in the part editor To find text 1 Inthe project manager select the root schematic folder to search the entire project or select specific schematic pages or Make the schematic page editor or the part editor the active window 2 From the Edit menu choose Find The Find dialog box appears 3 Leave the asterisk in the Find What text box to locate all occurrences of all text or Narrow the text search by entering specific text in the Find What text box 4 Verify that the Match Case option is as you want it 5 Select Text from the object types in the Scope area 6 Click OK If you search the entire project or selected schematic pages from the project manager the search results are listed in the browse window If you search with either the schematic page editor window or the part editor window as the active window the results of the search display in the selection color in either the schematic page editor window or the part editor window 163 Chapter 8 Adding and editing graphics and text 164 Replacing text Schematic page editor or part editor text can be replaced by entering the replacement text from the keyboard or copying the replacement text from another application To replace text 1 Select
297. ys 171 173 177 panning 59 project manager fonts 63 schematic page size 83 schematic page units 83 session log fonts 63 text editor preferences 66 TrueType fonts as strokes 63 zoom factor 59 deleting an object 157 descending into attached schematic folders 200 208 Index deselecting 28 design cache 198 Design Cache folder 6 design folder 6 design process 231 Design Properties command 53 dialog box Fonts tab 80 Hierarchy tab 80 Miscellaneous tab 82 SDT Compatibility tab 80 dialog box Hierarchy tab 200 Design Resources folder 6 45 46 275 Design Rules Check command 232 toolbar 18 design rules violations checking for 232 design structure complex hierarchical 101 flat 98 hierarchical 99 simple hierarchical 99 Design Template command 53 dialog box Fonts tab 69 Grid Reference tab 74 Hierarchy tab 76 Page Size tab 72 SDT Compatibility tab 78 Title Block tab 70 dialog box Hierarchy tab 200 designator 236 designs exporting to a file 274 importing to a project 275 opening 47 dialog boxes Configure Macro 172 Export Design DXF tab 274 EDIF tab 274 Exporting Properties 277 Import Design Custom tab 275 EDIF tab 275 PSpice tab 275 Import Properties 280 Macro Name 171 325 Index displaying invisible power pins 221 drag maximum number of objects displayed 61 drawing adding fill 155 arcs 152 circles 151 ellipses 151 lines 149 polygons 154 po
298. ysical mode to separate instance and occurrence information Now both instances and occurrences are contained in a single view The project manager shows all occurrences in the Hierarchy tab In versions of Capture prior to Release 9 it was necessary to switch modes before creating a netlist for use with OrCAD Layout Now the netlist tool provides an option to use either the instance properties or the occurrence properties for creating a netlist The project manager yg fulladd Mel xi fulladd dsn FULLADD EX6B EX6B SCH H E Design Cache G Library Outputs Figure 3 File tab For information about hierarchical designs see Chapter 6 Design structure B FULLADD Mik E File 33 Hierarchy HALFADD_A EX6B UIC 74L532 U2C 74LS04 U20 74Ls04 U3D 741508 U4A 74LS08 U4B 74LS08 ALFADD_B EX6I UIC 74L532 U2C 74LS04 U2D 74LS04 U3D 74LS08 U4a 74 508 U4B 74 508 A 74L532 PEEN sPEDDO ri igure 4 Hierarchy tab Chapter 2 The Capture work environment For information about simple and complex hierarchical designs see Chapter 6 Design structure For information on each pop up menu command refer to Capture s online help 10 Part instances and part occurrences A part instance is a specific instantiation of a part Since the part instance may be referenced in one or more schematic pages any change you make to a part instance

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