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1. Tcl man pages HTML find contents html in lt install_dir gt modeltech docs html or use the Main window menu selection Help gt Tcl Man Pages various tech notes ASCII find the technotes directory in lt install_dir gt modeltech docs technotes Download a free PDF reader Model Technology s online documentation in PDF format requires a free Adobe Acrobat reader available through http www adobe com Getting Started with ModelSim EE Introduction 15 Comments Comments Comments and questions about this manual and ModelSim software are welcome Call write or fax or email Model Technology Incorporated 8905 SW Nimbus Avenue Suite 150 Beaverton OR 97008 7100 USA phone 503 641 1340 fax 503 526 5410 email manuals model com home page http www model com 16 Introduction Getting Started with ModelSim EE 2 ModelSim EE Installation Chapter contents System requirements for ModelSim EE 2 1 8 Installation procedure s so e r e eB Installed directories andfiles 000a a aa a22 Platform specific directories gt io s oro o co e Po e DS This chapter covers installation of ModelSim EE for workstations Please refer to the installation instructions packaged with your product for the latest information they may supercede the installation instructions here Also please be sure to read the README file included with ModelSim after you finish
2. Step 20 Select the last four bits in the value field 1000 by dragging the pointer across them Then replace them with 0111 and click Change Note that this is a temporary edit you must use your text editor to permanently change the source code Step 21 Select Run from the Main window toolbar At this point the simulation will run without any errors Note Test completed with no errors Time 1 us Iteration 0 Instance Next you will learn how to change the new line triggering for the List window Getting Started with ModelSim EE Tutorial Using ModelSim EE 113 Debugging a VHDL design By default a new line is displayed in the List window for each transition of a listed signal The following steps will change the triggering so the values are listed every 100 ns Step 22 In the List window make this menu selection Prop gt Display Props Perform these steps on Triggers page in the Modify Display Properties list dialog box Deselect Trigger on Signals to disable triggering on signals Select Trigger on Strobe to enable the strobe e Enter 100 in the Strobe period field e Enter 70 in the First strobe at field e Click OK to accept the settings Step 23 Your next action will be to change the radix for a b and sum to decimal 114 Tutorial Using ModelSim EE Getting Started with ModelSim EE Debugging a VHDL design Make this List window menu selection Prop gt Signal Props Th
3. cp lt install_dir gt modeltech examples stim do Step 3 Create a batch file using an editor name it yourfile With the editor put the following on separate lines in the file add list decimal do stim do write format list counter lst Step 4 To run the batch mode simulation enter the following command vsim wav saved wav counter lt yourfile 116 Tutorial Using ModelSim EE Getting Started with ModelSim EE Running a batch mode simulation This is what you just did in Step 4 e invoked the VSIM simulator on a design unit called counter that was provided with your software e you used the wav switch to instruct the simulator to save the simulation results in a log file named saved wav e used the contents of yourfile to specify that values are to be listed in decimal to execute a stimulus file called stim do and to write the results to a file named counter st the default for a design named counter Step 5 Since you saved the simulation results in saved wav you can view the simulation results by starting up VSIM with its view switch vsim view saved wav Step 6 Open these windows with the VIEW button or the equivalent command VSIM gt view structure signals list wave Note If you open the Process or Variables windows they will be empty You are looking at a saved simulation not examining one interactively the logfile saved in saved wav was used to reconstruct the current windows Step 7
4. s Find Search function to find the declaration of cache_set within cache v From the Source window menu select Edit gt Find the Search dialog box is displayed In the Search For field type cache_set and click Forward The cache_set declaration is now displayed in the Source window Note that the declaration of cache_set is a VHDL entity instantiated within the Verilog file cache v Eile Edit Object Options wire addr_size 0 5 saddr saddr_r wire word_size 1 0 5 sdata sdata_r pdata pdata_r wire 5 srw srwir sstrb sstrb_r prdy reg 3 0 oen wen wire 3 0 hit fetteeeeeeeettttt Cache sets t eeteeeeeeeee f Cache set sO paddr pdata hit 0 oen 0 cache set sl paddr pdata hit oen 1 cache_set s2 paddr pdata hit oen 2 cache_set s3 paddr pdata hit oen initial begin verbose 1 148 Tutorial Using ModelSim EE Getting Started with ModelSim EE Mixed VHDL Verilog simulation Step 10 Now click on the line s0 cache_set only in the Structure window Eile Edit library ieee use ieee std_logic_1164 all use work std_logic_util all entity cache_set is generic addr_size integer set_size integer word_size integer std_logic_vector addr_size downto std_logic_vector word_size downto std_logic std_logic std_logic j end cache_set Getting Started with ModelSim EE Tutorial Using ModelSim EE 14
5. Key F gt Sorting HDL items Use the Edit gt Sort menu selection in the windows below to sort HDL items in ascending descending or declaration order Process Signals Source Structure Variables and Wave windows Names such as net_1 net_10 and net_2 will sort numerically in the Signals and Wave windows Multiple window copies Use the View gt New menu selection from the VSIM Main window p35 to create multiple copies of the same window type The new window will become the default window for that type Menu tear off All window menus may be torn off to create a separate menu window To tear off click on the menu then select the dotted line button at the top of the menu 30 ModelSim EE Graphic Interface Getting Started with ModelSim EE Window features Tree window hierarchical view ModelSim provides a hierarchical or tree view of some aspect of your design in the Structure Signals Variables and Wave windows Eile Edit Window Depending on which window you are viewing one entry is created for each of the following VHDL and Verilog HDL item within the design VHDL items Verilog items indicated by a box prefix indicated by a circle prefix signals variables component instantiation parameters registers nets module instantiation generate statement block statement and package named fork named begin task and function Getting Started with ModelSim EE ModelSim
6. Now that you have the windows open put the signals in them VSIM gt add wave VSIM gt add list Step 8 Use the available VSIM windows to experiment with the saved simulation results and quit when you are ready VSIM gt quit If you want to read more about the batch and command line modes see the ModelSim EE PLUS Reference Manual Getting Started with ModelSim EE Tutorial Using ModelSim EE 117 Executing commands at startup Executing commands at startup The goals for this lesson are e specify the design unit to be simulated on the command line e edit the modelsim ini file e execute commands at startup Step 1 For this lesson you will use a macro file that provides startup information For convenience a startup file has been provided with the ModelSim program You need to copy this macro file from the installation directory by entering the command note the period specifying the current directory cp lt install_dir gt modeltech examples startup do Step 2 Next you will edit the system initialization file in the current directory to specify a command that is to be executed after the design is loaded To do this open the modelsim ini file using a text editor and add the following line in the vsim section of the file Startup do startup do Step 3 Take a look at the macro file It uses the predefined variable entity to do different things at startup for different designs Step 4 Start th
7. Freezes the signal or net at the specified value until it is forced again or until it is unforced with a noforce command e Kind Drive Attaches a driver to the signal and drives the specified value until the signal or net is forced again or until it is unforced with a noforce command This value is illegal for unresolved VHDL signals e Kind Deposit Sets the signal or net to the specified value The value remains until there is a subsequent driver transaction or until the signal or net is forced again or until it is unforced with a noforce command Freeze is the default for Verilog nets and unresolved VHDL signals and Drive is the default for resolved signals If you prefer Freeze as the default for resolved and unresolved signals you can change the default force kind in the modelsim ini file e Delay Allows you to specify how many time units from the current time the stimulus is to be applied Getting Started with ModelSim EE ModelSim EE Graphic Interface 67 Signals window e Repeat Allows you to specify the time interval after which the stimulus is to be repeated A value of 0 indicates that the stimulus is not to be repeated e Force When you click the Force button a force command is issued with the parameters you have set and echoed in the Main window Adding HDL items to the Wave and List windows or a log file Before adding items to the List or Wave window you may want to set the window display properties s
8. Your window positions will be saved in the modelsim ini file and the windows will close 106 Tutorial Using ModelSim EE Getting Started with ModelSim EE Debugging a VHDL design Debugging a VHDL design The goals for this lesson are e show an example of a VHDL testbench a VHDL architecture that instantiates the VHDL design units to be tested provides simulation stimuli and checks the results e map a logical library name to an actual library change the default run length e recognize assertion messages in the command window e change the assertion break level e restart the simulation run using the restart command e examine composite types displayed in the VSIM Variables window e change the value of a variable use a strobe to trigger lines in the VSIM List window e change the radix of signals displayed in the VSIM List window Step 1 Return to the directory you created in Basic VHDL simulation p99 and enter the following command at the shell prompt to create the a new library vlib library_2 Step 2 Compile the source files into the new library by entering this command at the shell prompt vcom work library_2 gates vhd adder vhd testadder vhd Step 3 Now let s map the new library to the work library To create a mapping you can edit the Library section of the modelsim ini file or you can create a logical library name with the vmap command vmap work library_2 Getting Started with Mode
9. Choose the lessons appropriate for your simulator version PLUS and VHDL lessons Basic VHDL simulation 2 2 2 eee 9D Debugging a VHDL design 2 2 ee 107 Running abatch mode simulation ON Executing commands atstarup 118 Tcl Tk and ModelSim 2 ee 120 PLUS and VLOG lesson Basic Verilog simulation 2 ee B35 PLUS lessons Mixed VHDL Verilog simulation 1 146 PLUS VHDL and VLOG practice Finding names and searching for values 150 Using the Wave window 2 ee 5 Getting Started with ModelSim EE Tutorial Using ModelSim EE 97 Assumptions We assume that you are familiar with the graphical interface on your workstation either OpenWindows or OSF Motif on SPARCstations and OSF Motif on IBM and Hewlett Packard workstations your workstation interface provides the window management frame while ModelSim controls all internal window features including menus buttons and scroll bars We also assume that you have a working knowledge of HDL design Although ModelSim is an excellent tool to use while learning HDL concepts and practices this guide is not written to support that goal Additional details for VHDL Verilog and mixed VHDL Verilog simulation can be found in the ModelSim EE PLUS Reference Manual See Where to find our documentation p15 98 Tutorial Using ModelSim EE Getting Started with Mode
10. EDA Solutions Pty Ltd Level 3 South Tower 1 5 Railway Street Chatswood NSW 2067 Australia Phone 011 61 2 9413 4611 fax 011 61 2 9413 4622 email info eda com au Provides VHDL training consulting services and VHDL model development Contact Alain Legrand EEC Consultants Inc 3243 Springwood Drive Clearwater FL 34621 USA Phone 813 786 2929 VHDL models Contact Kent Ulrich 164 Resources Getting Started with ModelSim EE Corporations amp Consultants Hardi Electronics AB Box 966 S220 09 Lund Sweden Phone 46 11 77 90 fax 46 13 15 99 Provides VHDL training consulting services and product distribution Contact Lars Eric Lundgren LEDA SA 35 Avenue du Granier 38240 Meylan France Phone 33 76 41 92 43 fax 33 76 41 92 44 Provides VHDL training consulting services and product distribution Contact Francis Sourbier Logic Modeling 19500 NW Gibbs Drive Beaverton OR 97006 USA Phone 503 690 6900 fax 503 690 6906 Provides modeling libraries Paolo Tabacco Via Dei Berio 91 Rome Italy 00155 Phone 39 6 22595 306 fax 39 6 2280739 email tabacco space it Designs for boards and ASICs using ModelSim and Exemplar CORE in aerospace and commercials applications Contact Paolo Tabacco Papillon Research Corporation 52 Domino Drive Concord MA 01742 USA Phone 508 371 9115 fax 508 371 9175 email info papillonres com internet http www papillonres com papillon Full product desi
11. EE Graphic Interface 31 Window features Viewing the hierarchy Whenever you see a tree view as in the Structure window above you can use the mouse to collapse or expand the hierarchy Select the symbols as shown below Symbol Description A plus box circle indicates that you can expand this item to view the structural elements it contains Do this by clicking the box circle containing the plus sign A minus box circle indicates that the hierarchy has been expanded You can hide the names of structural elements in the region by clicking on the box or circle containing the minus sign An empty box circle indicates that the item contains no lower level structural elements Tree window action list Action Use Do expand a level left mouse button click on a box circle collapse a level left mouse button wow click ona box circle select a single item left mouse button click on the HDL item name not the box circle prefix select multiple contiguous items not in Structure window left mouse button click on the HDL item name and drag to complete selection select a range of contiguous items not in Structure window shift left mouse button select first item shift click on last item in range select multiple random items not in Structure window control left mouse button click on the desired items in any order
12. EE Help Updates and Licensing 157 Updates e Lucent Technologies Bell Labs Design Automation email info blda lucent com telephone 800 875 6590 web site http www bell labs com org blda e Synplicity email support synplicity com telephone 408 617 6000 web site http www synplicity com Updates Getting the latest version information If you want the latest version information via email from Model Technology make sure your email address is current in our customer database If you think it is not send email to license model com Make the subject line read register email address Put your hostID or hardware security key number and your email address in the body of the message Getting the latest version You can ftp the latest version of the software from the web site at ftp model com Instructions are there as well A valid license file from either Model Technology or Mentor Graphics is needed to uncompress the ModelSim EE files A password from Model Technology is needed to uncompress the ModelSim PE files Contact license model com if you are a current PE customer and need a password ModelSim EE Licensing ModelSim EE Licenses from Model Technology Starting with 5 0 ModelSim workstation products use a version of Globetrotter Software s license manager with a FEATURE line that looks like this FEATURE vsim modeltech 1997 090 Ol apr 1998 2 6C92577EC335F4C9568D ck 61 158 Hel
13. Edit gt Sort menu selection to sort the items in the name value pane Finding items by name or value in the Wave window From the Wave window select Edit gt Find to bring up the Find dialog box top paddi Choose either the Name or Value field to search from the drop down menu and enter the value to search for in the Find field Find the item by searching Forward down or Reverse up through the Wave window display Searching for item values in the Wave window Select an item in the Wave window From the Wave window menu bar select Edit gt Search to bring up the Wave Signal Search dialog box The Wave Signal Search dialog box includes these options Getting Started with ModelSim EE ModelSim EE Graphic Interface 89 Wave window e Signal Name lt item_label gt This indicates the item currently selected in the Wave window the subject of the search Search Options Ignore Glitches Ignore zero width glitches in VHDL signals and Verilog nets e Search Options Reverse Direction Search the list from right to left Deselect to search from left to right Search Options Search for Signal Value Reveals the Search Value field search for the value specified in the Search Value field the value must be formatted in the same radix as the display If no value is specified the search will look for transitions Wave Signal Search window wave 125 r J Search for Signal Value r eo fee e Wave
14. Getting Started with ModelSim EE Wave window Zooming changing the waveform display range Zooming lets you change the simulation range in the windowpane display You can zoom with either the Zoom menu mouse keyboard or VSIM commands Edit Cursor Zoom Prop Window drag from left to right with the middle mouse button to zoom Using the Zoom menu You can use the Wave window menu bar or call up a Zoom menu window with the right mouse button in the right windowpane The menu options include Zoom Full Redraws the display to show the entire simulation from time 0 to the current simulation time Zoom In Zooms in by a factor of two increasing the resolution and decreasing the visible range horizontally cropping the view on the right The starting time is held static e Zoom Out Zooms out by a factor of two decreasing the resolution and increasing the visible range horizontally extending the view on the right The starting time is held static Zoom Last Restores the display to where it was before the last zoom operation Getting Started with ModelSim EE ModelSim EE Graphic Interface 93 Wave window e Zoom Range Brings up a dialog box that allows you to enter the beginning and ending times for a range of time units to be displayed Zooming with the mouse To zoom with the mouse position the mouse cursor to the left side of the desired zoom interval press the middle mouse button and while continu
15. Run field to 1000 Do not change the other settings Click OK to accept the new settings Step 10 Next you will run the simulator Select the Run button on the Main window toolbar Eile Library Miew Run Macro Options VSIM 3 gt add wave Error Sum is 00000111 Expected 00001000 Time 600 ns Iteration 0 Instance testbench Note There were ERRORS in the test Time 1 us Iteration 0 Instance testbench SIM 6 gt A message in the main VSIM window will notify you that there was an assertion error 110 Tutorial Using ModelSim EE Getting Started with ModelSim EE Debugging a VHDL design Let s find out what s wrong Perform the following steps to track down the assertion message Step 11 Let s change the simulation options again Make this Main window menu selection Options gt Simulation Select the Assertions page Change the selection for Break on Assertion to Error and click OK This will cause the simulator to stop at the HDL statement after the assertion is displayed Step 12 To restart the simulation make this Main window menu selection File gt Restart Make sure all items in the Restart dialog box are selected then click Restart Getting Started with ModelSim EE Tutorial Using ModelSim EE 111 Debugging a VHDL design Step 13 From the Main window menu bar select Run gt Run 1000 ns Notice that the arrow in the Source window is pointing to the statemen
16. Structure window 74 HDL items viewed in 74 instance names 75 selecting items to view in Signals window 64 VHDL and Verilog items viewed in 74 viewing design hierarchy 74 Variables window 77 displaying values 77 VHDL and Verilog items viewed in 77 viewing all 109 Wave window 79 adding HDL items 84 adding signals with a log file 68 changing display range zoom 93 153 cursor measurements 92 153 locating time cursors 29 150 searching for HDL item values 89 setting display properties 83 using time cursors 91 152 zooming 93 153 Work library mapping 107 Workstation environments supported 12 Zooming in the Wave window 93 153 172 Index Getting Started with ModelSim EE
17. Wave window to match the display as it appeared when the do file was created Close close this copy of the Wave window you can create a new window with View gt New from the The VSIM Main window menu bar p36 Edit menu Cut cut the selected item from the wave name pane see Editing and formatting HDL items in the Wave window p86 Copy copy the selected item and waveform Paste paste the previously cut or copied item above the currently selected item Combine combine the selected fields into a user defined bus Sort sort the top level items in the name pane sort with full path name or viewed name use ascending descending or declaration order Delete delete the selected item and its waveform Select All select or unselect all item names in name pane Unselect All Find find specified item label within the Wave name window Search search the waveform display for a specified value or the next transition for the selected signal see Searching for item values in the Wave window p89 82 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window Cursors menu Add Cursor add a cursor to the center of the waveform window Delete Cursor delete the selected cursor from the window Goto choose a cursor to go to from a list of current cursors Zoom menu Zoom lt selection gt selection Full In Out Last or Range to change the waveform
18. a dialog box provides options to keep the List and Wave formats breakpoints and logged signals Save Transcript save a transcript of the Main window to a text file CAUTION this can be a very large file Save Transcript as save another copy of the transcript with a different name the default name is specified in the modelsim ini file Clear Transcript clear the Main window transcript display Quit quit ModelSim and return to UNIX command line Library menu Browse Libraries browse all libraries within the scope of the design Create a New Library create a new library or map a library to a new name View Library Contents view or delete the contents of a library View menu All open all VSIM windows Source open and or view the Source window p70 36 ModelSim EE Graphic Interface Getting Started with ModelSim EE VSIM Main window Structure open and or view the Structure window p74 Variables open and or view the Variables window p77 Signals open and or view the Signals window p64 List open and or view the List window p44 Process open and or view the Process window p62 Wave open and or view the Wave window p79 Dataflow open and or view the Dataflow window p42 New create a new VSIM window of the specified type Run menu Run default run simulation for one default run length change the run length with Options gt Simulati
19. a lB HDL and HDL item defined dA Where to find our documentation AS The purpose of this guide is to help you install and become familiar with ModelSim EE Model Technology s HDL simulation software for workstations Tutorials are included that apply to one or more of the following ModelSim simulators e ModelSim EE PLUS VHDL Verilog and mixed VDHL Verilog simulation for workstations e ModelSim EE VHDL VHDL simulation for workstations e ModelSim EE VLOG Verilog simulation for workstations Software versions This documentation was written to support ModelSim EE PLUS 5 1 for workstations If the software you are using is a later release check the README file that accompanied the software Any supplemental information will be there Although this guide covers both VHDL and Verilog simulation you will find it a useful reference even if your design work is limited to a single HDL Getting Started with ModelSim EE Introduction 11 ModelSim s graphic interface ModelSim s graphic interface While your workstation interface provides the window management frame ModelSim controls all internal window features including menus buttons and scroll bars The resulting interface remains consistent within these workstation environments e SPARCstation with OpenWindows or OSF Motif e IBM RISC System 6000 with OSF Motif e Hewlett Packard HP 9000 Series 700 with HP VUE or OSF Motif For an in
20. available from the Dataflow window menu bar File menu Save Postscript save the current dataflow view as a Postscript file Selection Follow Selection updates window when the Process window p62 or Signals window p64 changes Fix Selection freezes the view selected from within the Dataflow window Close close this copy of the Dataflow window you can create a new window with View gt New from the The VSIM Main window menu bar p36 Window menu lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden Tracing HDL items with the Dataflow window The Dataflow window is linked with the Signals window p64 and the Process window p62 To examine a particular process in the Dataflow window click on the process name in the Process window To examine a particular HDL item in the Dataflow window click on the item name in the Signals window with a signal in center of the Dataflow window you can e click once on a process name in the Dataflow window to make the Source and Variable windows update to show that process e click twice on a process name in the Dataflow window to move the process to the center of the Dataflow window with a process in center of the Dataflow window you can e click once on an item name to make the Source and Signals windows update to show that item Getting Started with ModelSim EE ModelSim EE Graphic Interface 43 List window e cl
21. display range Prop menu Display Props set display properties for all items in the window delta settings trigger on selection strobe period and label size Signal Props set label radix trigger on off and field width for the selected item use the menu selections below to quickly change individual properties Radix set the selected item s radix Format set the waveform format for the selected item Color set the color for the selected item from a color palette Height set the waveform height in pixels for the selected item Window menu lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden Setting Wave window display properties You can define the item name width and the cursor snap distance of all items in the Wave window with the Prop gt Display Props menu selection Getting Started with ModelSim EE ModelSim EE Graphic Interface 83 Wave window The Wave Window Properties dialog box includes these options e Max Signal Name Width Sets the item name width This is especially useful for items that have a long pathname Choose a maximum name width setting say 10 characters and then item pathnames longer than 10 characters are truncated on the left All truncations take place at the slash boundary so you will never see a partial item name The default value for this field is 0 which means to display the full path Negative numbers al
22. file match case option Object menu Describe displays information about the selected HDL item the item name is shown in the title bar Examine displays the current value of the selected HDL item the item name is shown in the title bar Options menu Options open the Source Options dialog box see Setting Source window options p72 Getting Started with ModelSim EE ModelSim EE Graphic Interface 71 Source window Window menu lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden Editing the source file in the Source window Several mouse actions and special keystrokes can be used to edit the source file in the Source window See Editing the command line the current source file and notepads p40 for a list of editing options they can also be used to edit command line input in the VSIM Main window p35 Checking HDL item values and descriptions There are two quick methods to determine the value and description of an HDL item displayed in the Source window e select an item then chose Object gt Examine or Object gt Description from the Source window menu e select an item with the right mouse button to view examine pop up select now to examine the current simulation time in VHDL code Setting Source window options Access the Source window options with this Source menu selection Options gt Options 72 ModelSim E
23. gt vco e for sh Bourne or Korn PATH SPATH lt install_dir gt vco export PATH Step 4 Enter or edit the Jicense dat file in the modeltech directory Typically the file looks like this SERVER hostname nnnnnnnn 1650 DAEMON modeltech modeltech options E EATURE vsim modeltech 1997 090 dd mmm yyyy 2 6C92577EC335F4C9568D ck 61 FEATURE vcom modeltech 1997 090 dd mmm yyyy 2 6C92577EC335F4C9568D ck 61 Note To enable starting the license daemon from any directory change the DAEMON line to use full path For example DAEMON modeltech usr modeltech hp700 modeltech usr modeltech hp700 options Step 5 For HP installation using HP UX version 9 x only either the device dev lan0 must be writable by the userID that starts the server or the Imgrd daemon and the Imhostid utility must be made setuid root The commands to do this are chmod atw dev lan0 or chown root Ilmgrd Imhostid chmod u s lImgrd lmhostid Step 6 Start the license manager daemon by entering the following commands cd usr modeltech lt platform gt START_SERVER where lt platform gt can be sun4 sunos5 hp700 rs6000 20 ModelSim EE Installation Getting Started with ModelSim EE Installation procedure If your system runs other applications that use Globetrotter Software s FLEXIm a complete user s manual for FLEXIm is available at Globetrotter Software s h
24. gt drag scroll the window Special keystrokes Result lt left right up down arrow gt move the insertion cursor lt control a gt move insertion cursor to beginning of line lt control e gt move insertion cursor to end of line lt meta lt gt move insertion cursor to beginning of file 40 ModelSim EE Graphic Interface Getting Started with ModelSim EE VSIM Main window Special keystrokes Result lt meta gt gt move insertion cursor to end of file lt control p gt move insertion cursor to previous line lt control n gt move insertion cursor to next line lt control f gt move insertion cursor forward lt control b gt move insertion cursor backward lt backspace gt delete character to the left lt control d gt delete character to the right lt control k gt delete to the end of line lt control w gt cut selection lt meta w gt copy selection lt control y gt insert clipboard The VSIM Main window allows insertions or pastes only after the prompt therefore you don t need to set the cursor when copying strings to the command line Also when doing lt control a gt to move the insertion to the beginning of the line the insertion point will show left of the cursor but insertions will happen to the right of the cursor Which keyboard k
25. however you can see the results as HDL item waveforms and their values The Wave window is divided into two windowpanes the left pane displays item names and their values at the active cursor located in the right pane the right pane displays waveforms corresponding to each item and any cursors you may have added Eile Edit Cursor Zoom Prop Window bCGTATATATATATORY The data in the item values windowpane is very similar to the Signals window except that the values change dynamically whenever a cursor in the waveform windowpane is moved At the bottom of the waveform windowpane you can see a time line tick marks and a readout of the cursor s position s As you click and drag to move a cursor the time value at the cursor location is updated at the bottom of the cursor You can resize the windowpanes by clicking and dragging the bar between the two windowpanes Waveform and signal name formatting are easily changed via the Prop menu p83 You can reuse any formatting changes you make by saving a Wave window format file see Adding items with a Wave window format file p85 Getting Started with ModelSim EE ModelSim EE Graphic Interface 79 Wave window HDL items viewed within the List window The following HDL items for VHDL and Verilog are viewable in the Wave window VHDL items Verilog items signals and process variables Note nets register variables and named events Constants gener
26. look for transitions 00000010 E e eae List Signal Search dialog box with Search for Signal Value selected Getting Started with ModelSim EE ModelSim EE Graphic Interface 57 List window e Search Options Search for Expression Reveals the Search Expression field and the Use Expression Builder button searches for the expression specified in the Search Expression field evaluating to a boolean true The expression may involve more than one signal but is limited to signals logged in the List window Expressions may include constants variables and macros If no expression is specified the search will give an error To help build the expression click the Use Expression Builder button List Signal Search dialog box with Search for Expression selected e Search Occurrences You can search for the n th transition or the n th match on value or expression Search Occurrences indicates the number of transitions or matches for which to search 58 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window Setting time markers in the List window From the List window select Markers gt Add Marker to tag the selected list line with a marker The marker is indicated by a thin box surrounding the marked line The selected line uses the same indicator but its values are highlighted Delete markers by first selecting the marked line then making the Markers gt Delete Marker menu selection Eile Edit
27. procedures within the file for use within the current environment Step 3 Now invoke this command from the ModelSim prompt example hello tcl hello_example The file hello tcl was read into the VSIM Tcl interpreter The instructions in hello tcl were then executed by VSIM Hello World was printed on the standard output You ve just created your first top level widget Getting Started with ModelSim EE Tutorial Using ModelSim EE 127 Tel Tk and ModelSim Example 2 add a procedure that gets called by a button push Before you begin the examples make sure you have completed Preparing for the Tcl Tk examples p126 steps 1 through 3 In this example you will study a larger Tcl example and add a procedure that gets called by a button push This example will display all of the gif images in the images directory Each button has a binding attached to it for enter events and a binding for a mouse button press When the mouse enters the button the image file name is printed on the standard output When the mouse button is pushed its widget name will be printed on the standard output Step 1 Invoke VSIM from within the cl_getstart directory and Cancel the resulting Load Design dialog box This will cause VSIM to use the proper modelsim ini and modelsim tcl files Step 2 Run the image viewer by invoking this command xample images tcl image_example Step 3 Drag the mouse across the buttons and notice
28. the SOFTWARE in a restricted and secured area and shall grant access only to authorized persons You shall not make software available in any form to any person other than your employees whose job performance requires access and who are specified in writing to MTI MTI may enter your business premises during normal business hours to inspect the SOFTWARE subject to your normal security 4 PERMISSION TO COPY LICENSED SOFTWARE You may copy the SOFTWARE only as reasonably necessary to support an authorized use Except as permitted by Section 2 you may not make copies in whole or in part of the SOFTWARE or other material provided by MTI without the prior written consent of MTI For such permitted copies you will include all notices and legends embedded in the SOFTWARE and affixed to its medium and container as received from MTI All copies of the SOFTWARE whether provided by MTI or made by you shall remain the property of MTI or its licensors You will maintain a record of the number and location of all copies of the SOFTWARE made including copes that have been merged with other software and will make those records available to MTI or its applicable licensor upon request 5 TRADE SECRET The source code of the SOFTWARE is trade secret or confidential information of MTI or its licensors You shall take appropriate action to protect the confidentiality of the SOFTWARE and to ensure that any user permitted access to the SOFTWARE does not provid
29. the Tcl Tk examples p126 steps 1 through 3 before working this example Step 1 Draw the intersection by invoking this command at the VSIM prompt xample intersection tcl draw_intersection Step 2 From the VSIM prompt use the procedure set_light_state to change the color of the lights set_light_state green traffic i ns_light set_light_state green traffic i ew_light Step 3 not View the source code with this command at the VSIM prompt epad intersection tcl Getting Started with ModelSim EE Tutorial Using ModelSim EE 129 Tel Tk and ModelSim The set_light_state procedure is located toward the middle of the file Example 4 connect traffic lights to the simulation Using the intersection widget you will add when statements so that the lights get connected to the real simulation Once the connection is made you will simulate the traffic light controller and watch the lights change We ll use VSIM when statements to condition the simulation to call our Tcl program when a desired simulation condition happens For our example the desired condition is the state of the lights Whenever the state of the light in the simulation changes we want to change the color of the light on the screen Step 1 If the intersection widget is not already displayed invoke this command xample intersection tcl draw_intersection If the intersection widget is already displayed you don t need to re
30. the line number This indicates that a breakpoint has been set for that line Clicking line 30 once more would remove the breakpoint but don t do that now Step 20 Select Run from the Main window toolbar to resume execution of the simulation When the simulation hits the breakpoint it stops running highlights the Source window with an arrow and issues a message in the Main window Step 21 Typically when a breakpoint is reached you will be interested in one or more signal values There are a few ways to determine this You can e look at the values shown in the Signals window or e examine the current value of the signal count by typing examine count As a result of your command the count is output to the Main window Step 22 Let s move through the Verilog source functions with ModelSim s Step and Step Over commands Click Step Over on the toolbar Getting Started with ModelSim EE Tutorial Using ModelSim EE 143 Basic Verilog simulation Eile Library View Bun Macro Options Window Help fin Jo om sep senor sek Break at counter v line 30 VSIM 14 gt view signals signals VSIM 15 gt examine count 01010100 VSIM 16 gt step over VSIM 17 gt This causes the simulator to step over the function call on line 30 The Step button on the toolbar would have single stepped the simulator including each line of the increment function Step 23 Experiment by yourself for awhile setting
31. user defined argument do not enter the brackets in commands square brackets indicate an optional item if the brackets surround several words all must be entered as a group the brackets are not entered an ellipsis indicates items that may appear more than once the ellipsis itself does not appear in commands the vertical bar indicates a choice between items on either side of it Do not include the bar in the command comments are preceded by the number sign 14 Introduction Getting Started with ModelSim EE Where to find our documentation Where to find our documentation Model Technology s documentation is available in the following formats and locations Document Format How to get it Getting Started paper shipped with the product additional copies at 50 each for installation amp customers with current maintenance tutorial Getting Started EE PDF online find gs_ee lt version gt pdf in the lt install_dir gt modeltech docs directory current version available from the Support page of our web site http www model com EE Reference paper shipped with the product additional copies at 50 each for Manual customers with current maintenance EE Reference PDF online find ee_man lt version gt pdf in lt install_dir gt modeltech docs Manual current version available for ftp from the Support page of our web site http www model com password required
32. window The Variables window menu bar The following menu commands are available from the Variables window menu bar File menu Save As save the variables tree to a text file viewable with the ModelSim notepad Environment Follow Environment update the window based on the selection in the Structure window p74 Fix Environment maintain the current view do not update Close close this copy of the Variables window you can create a new window with View gt New from the The VSIM Main window menu bar p36 Edit menu Editing options basic editing options include Copy then paste to Wave or List window Select All and Unselect All Sort sort the variables tree in either ascending descending or declaration order Change change the value of the selected HDL item Find find specified text string within the variables tree choose the Name or Value field to search and the search direction forward or reverse View menu Wave List Log place the Selected Variables Variables in Region or Variables in Design in the Wave window p79 List window p44 or Log file Window menu lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden 78 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window Wave window The Wave window like the List window allows you to view the results of your simulation In the Wave window
33. 00 000 000 valid_mem true true tr The names of any VHDL composite types arrays and record types are shown in a hierarchical fashion Hierarchy also applies to Verilog vector memories Verilog vector registers do not have hierarchy because they are not internally represented as arrays Hierarchy is indicated in typical ModelSim fashion with plus expandable minus expanded and blank single level boxes See Tree window hierarchical view p31 for more information To change the value of a VHDL variable constant generic or Verilog register variable move the pointer to the desired name and click to highlight the selection Then select Edit gt Change from the Variables window menu This brings up a dialog box that lets you specify a new value Note that Variable Name is a term that is used loosely in this case to signify VHDL constants and generics as well as VHDL and Verilog register variables You can enter any value that is valid for the variable An array value must be specified as a string without surrounding quotation marks To modify the values in a record you need to change each field separately HDL items viewed within the Variables window The following HDL items for VHDL and Verilog are viewable within the Variables window VHDL items Verilog items constants generics and variables register variables Getting Started with ModelSim EE ModelSim EE Graphic Interface 77 Variables
34. 598 0 VHDL Hardware Description and Design Roger Lipsett Carl Schaefer amp Cary Ussery Kluwer Academic Publishers 101 Philip Drive Assinippi Park Norwell Massachusetts 02061 USA 1989 VHDL Primer Jayaram Bhasker Prentice Hall Englewood Cliffs New Jersey 07632 USA 1992 162 Resources Getting Started with ModelSim EE Organizations Organizations IEEE The Institute of Electrical and Electronics Engineers Inc 345 East 47th Street New York New York 10017 2394 USA Fax 212 705 7453 Open Verilog International 15466 Los Gatos Blvd Suite 109 071 Los Gatos CA 95032 Phone 408 353 8899 fax 408 353 8869 email ovi netcom com web http www ovi org Contact Lynn Horobin The SDF mapping rules described in the Model Development Specification are based on version 2 1 of OVI s Standard Delay Format Specification This document is available from Open Verilog International VHDL International 407 Chester Street Menlo Park CA 94025 3718 USA Phone 800 554 2550 or 415 329 0578 fax 415 324 3150 A consortium of VHDL tool vendors and users that exists to promote the usage and standardization of VHDL For information about VHDL International membership and mailings contact Conference Management Services VHDL International Users Forum 407 Chester Street Menlo Park CA 94025 3718 USA Phone 800 554 2550 or 415 329 0578 fax 415 324 3150 The users group within VHDL International This group cu
35. 79 List window p44 or Log file Filter choose the port and signal types to view Input Ports Output Ports InOut Ports Window menu and Internal Signals in the Signals window lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden Getting Started with ModelSim EE ModelSim EE Graphic Interface 65 Signals window Selecting HDL item types to view The View gt Filter menu selection allows you to specify which HDL items are shown in the Signals window Multiple options may be selected z m Input Ports j Output Ports Forcing signal and net values The Edit gt Force menu selection displays a dialog box that allows you to apply stimulus to the selected signal or net You can specify that the stimulus is to repeat at a regular time interval expressed in the time units set in the Startup window when you invoked the simulator 66 ModelSim EE Graphic Interface Getting Started with ModelSim EE Signals window The Force dialog box includes these options e Signal Name Specify the signal or net for the applied stimulus e Value Initially displays the current value which can be changed by entering a new value into the field A value can be specified in radixes other than decimal by using the form for VHDL and Verilog respectively base valu or blo d h value For example 16 EE or h EE specifies the hexadecimal value EE e Kind Freeze
36. 9 Finding names and searching for values Before you quit try experimenting with some of the commands you ve learned from Lesson 1 Note that in this design clk is already driven so you won t need to use the force command Step 11 When you re ready to quit simulating enter the command VSIM gt quit force Finding names and searching for values You can easily locate HDL item names and values within ModelSim s windows Start any of the lesson simulations to try out the Find and Search functions illustrated below Finding items by name in tree windows You can find HDL item names with the Edit gt Find menu selection in these windows List Process Signals Source Structure Variables and Wave windows Select Edit gt Find to bring up the Find dialog box List window version shown Enter an item label and Find it by searching Forward right or Reverse left through the window display Searching for item values in the List and Wave windows You can search for HDL item values in the List and Wave windows Select Edit gt Search from the window s menu to bring up the Signal Search dialog box List window version shown 150 Tutorial Using ModelSim EE Getting Started with ModelSim EE Finding names and searching for values The List Signal Search dialog box includes these options You can locate values for the Signal Name lt item_label gt shown at the top of the dialog box The
37. E Graphic Interface Getting Started with ModelSim EE Source window The Source Options dialog box includes these options e Language select either VHDL or Verilog sets language for key word colorizing Source Update Mode select freeze file to maintain the same source file in the Source window useful when you have two Source windows open one can be updated from the Structure window p74 the other frozen or freeze view to disable updating the source view from the Process window p62 e Colorize Source colorize key words variables and comments Step Buttons Visible select to add Step and Step Over buttons to the Source window menu bar e Read Only sets the source file to read only mode Highlight Executable Lines highlights the line number of executable lines Getting Started with ModelSim EE ModelSim EE Graphic Interface 73 Structure window Structure window The Structure window provides a hierarchical view of the structure of your design An entry is created by each HDL item within the design Window ily HDL items viewed within the Structure window The following HDL items for VHDL and Verilog are represented by hierarchy within Structure window VHDL items Verilog items component instantiation generate statement block statement and package module instantiation named fork named begin task and function Within the Structure window VHDL items are indicated by a b
38. EE Graphic Interface 87 Wave window e Format Analog Interpolated Displays the waveform in interpolated style e Format Analog Backstep Displays the waveform in backstep style Used for power calculations Format Literal Displays the waveform as a box containing the item value if the value fits the space available This is the only format that can be used to list a record e Format Logic Displays values as 0 1 X Z H L U or e Format Event Marks each transition during the simulation run The illustration below shows the same item displayed in each wave format Edit Cursor Zoom Prop Window gt Ei E E E E E E e Pixels value lt offset gt lt scale factor gt This choice works with analog items only and allows you to decide on the scale of the item as it is seen on the display Value is the value of the signal at a given time lt offset gt is the number of pixels offset from zero The lt scale factor gt reduces if less than 1 or increases if greater than 1 the number of pixels displayed e Radix The explicit choices are Symbolic Binary Octal Decimal Unsigned Hexadecimal and ASCII If you select Default the signal s radix changes whenever the default is changed using the radix command Item values are not translated if you select Symbolic 88 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window Sorting a group of HDL items Use the
39. Getting Started with ModelSim EE VHDL Verilog and Mixed HDL Simulation for Workstations MENTOR GRAPHICS COMPANY ModelSim VHDL ModelSim PLUS and ModelSim VLOG are produced by Model Technology Incorporated Unauthorized copying duplication or other reproduction is prohibited without the written consent of Model Technology The information in this manual is subject to change without notice and does not represent a commitment on the part of Model Technology The program described in this manual is furnished under a license agreement and may not be used or copied except in accordance with the terms of the agreement The online documentation provided with this product may be printed by the end user The number or copies that may be printed is limited to the number of licenses purchased ModelSim is a trademark of Model Technology Incorporated PostScript is a registered trademark of Adobe Systems Incorporated UNIX is a registered trademark of AT amp T in the USA and other countries FLEXIm is a trademark of Globetrotter Software Inc IBM AT and PC are registered trademarks AIX and RISC System 6000 are trademarks of International Business Machines Corporation Windows is a trademark Microsoft and MS DOS are registered trademarks of Microsoft Corporation OSF Motif is a trademark of the Open Software Foundation Inc in the USA and other countries SPARC is a registered trademark and SPARCstation is a trademark of SPARC International
40. Inc Sun Microsystems is a registered trademark and Sun SunOS and OpenWindows are trademarks of Sun Microsystems Inc All other trademarks and registered trademarks are the properties of their respective holders Copyright c 1990 1998 Model Technology Incorporated All rights reserved Confidential Online documentation may be printed by licensed customers of Model Technology Incorporated for internal business purposes only Software Version 5 1 Published April 1998 Model Technology Incorporated 8905 SW Nimbus Avenue Suite 150 Beaverton OR 97008 7100 USA phone 503 641 1340 fax 503 526 5410 email support model com sales model com home page http www model com 50 US Software License Agreement This is a legal agreement between you the end user and Model Technology Incorporated MTD By opening the sealed package or by signing this form you are agreeing to be bound by the terms of this agreement If you do not agree to the terms of this agreement promptly return the unopened package and all accompanying items to the place you obtained them for a full refund Model Technology Software License 1 LICENSE MTI grants to you the nontransferable nonexclusive right to use one copy of the enclosed software program the SOPFTWARE for each license or hardware security key you have purchased The SOFTWARE must be used on the computer hardware server equipment that you identified in writing by make model and work
41. Markers Prop Window PRP Eh d Finding a marker The marker name on the Goto list corresponds to the simulation time of the selected line Choose a specific marked line to view with Markers gt Goto menu selection List window keyboard shortcuts Using the following keys when the mouse cursor is within the List window will cause the indicated actions Key Action lt arrow up gt scroll listing up lt arrow down gt scroll listing down lt arrow left gt scroll listing left lt arrow right gt scroll listing right Getting Started with ModelSim EE ModelSim EE Graphic Interface 59 List window Key Action lt page up gt scroll listing up by page lt page down gt scroll listing down by page lt tab gt searches forward down to the next transition on the selected signal lt shift tab gt searches backward up to the previous transition on the selected signal lt Control f gt opens the find dialog box find the specified item label within the list display HP workstation note lt shift tab gt does not function on HP workstations Saving List window data to a file From the List window select Edit gt Write List format to save the List window data in one of these formats e tabular writes a text file that looks like the window listing ns delta a b cin sum cout 0 0 X X U X U 0 1 0 1 0 X U 2 O 0 1 0
42. Signal Search dialog box with Search for Signal Value selected e Search Options Search for Expression Reveals the Search Expression field and the Use Expression Builder button searches for the expression specified in the Search Expression field evaluating to a boolean true The expression may involve more than one signal but is limited to signals logged in the List window Expressions may include constants variables and macros If no expression is specified the search will give an error See the ModelSim EE PLUS Reference Manual for more information on expression syntax and the use of the Expression Builder 90 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window I Search for Expression Mop paddr 200000011 ea es Wave Signal Search dialog box with Search for Expression selected e Search Occurrences You can search for the n th transition or the n th match on value or expression Search Occurrences indicates the number of transitions or matches for which to search Using time cursors in the Wave window When the Wave window is first drawn there is one cursor in it at time zero Clicking anywhere in the waveform display brings that cursor to the mouse location You can add additional cursors to the waveform pane with the Cursor gt Add Cursor menu selection The selected cursor is drawn as a solid line all other cursors are drawn with dotted lines Remove cursors by selecting them and choosin
43. X U e event writes a text file containing transitions during simulation O 0 a X b X cin U 60 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window sum X cout U O 1 a 0 b 1 cin 0 e TSSI writes a file in standard TSSI format 00000000000000010000000010 0 2 3 00000000000000010 010 4 100 00000001000000010000000010 Getting Started with ModelSim EE ModelSim EE Graphic Interface 61 Process window Process window The Process window displays a list of processes and indicates the pathname of the instance in which the process is located F TE C n Region lt Wait gt IMPLICIT WIRE wen lt Wait gt IMPLICIT WIRE oen lt Wait gt IMPLICIT WIRE wen lt Wait gt IMPLICIT WIRE oen lt Wait gt IMPLICIT WIRE wen lt Wait gt IMPLICIT WIRE oen lt Wait gt IMPLICIT WIRE wen lt Wait gt IMPLICIT WIRE oen lt Wait gt ASSIGN 20 lt Wait gt ASSIGN 20 SSUES T Each HDL item in the scrollbox is preceded by one of the following indicators e lt Ready gt Indicates that the process is scheduled to be executed within the current delta time e lt Wait gt Indicates that the process is waiting for a VHDL signal or Verilog net or variable to change or for a specified time out period e lt Done gt Indicates that the process has executed a VHDL wait statement without a time out or a sensitivity list The proces
44. a track selects that cursor and brings it to the mouse position The cursors are designed to snap to the closest wave edge to the left of the mouse pointer You can position a cursor without snapping by dragging in the area below the waveforms Step 27 Experiment with using the cursors scrolling and zooming see page 155 for Wave window shortcuts Step 28 When you re done experimenting quit the simulator by entering the command VSIM gt quit force Getting Started with ModelSim EE Tutorial Using ModelSim EE 145 Mixed VHDL Verilog simulation Mixed VHDL Verilog simulation You must be using ModelSim EE PLUS for this lesson The goals for this lesson are e compile multiple VHDL and Verilog files e simulate a mixed VHDL and Verilog design e list VHDL signals and Verilog nets and regist e view the design in the Structure window ers e view the HDL source code in the Source window Step 1 First return to the directory you created in Basic VHDL simulation p99 cd lt directory_name gt Next copy the VHDL and Verilog files to the directory note the period specifying the current directory cp lt install_dir gt modeltech examples mixedHD cp lt install_dir gt modeltech examples mixedHD Step 2 L vhd Gy Eas A group of Verilog files can be compiled in any order Note however in a mixed VHDL Verilog design the Verilog files must be compiled before the VHDL files C
45. al Using ModelSim EE 101 Basic VHDL simulation Step 9 Next add top level signals to the Wave window with a similar Signals menu selection View gt Wave gt Signals in Region Step 10 You can apply stimulus to the clock input by moving the pointer to the Main window and entering the following command at the VSIM prompt as shown in the illustration below VSIM gt force clk 1 50 0 100 repeat 100 Loading home model charley modelsimS1 modeltech hp700 std standa Loading work counter only VSIM 12 gt view structure signals variables process source wave list dataflo VSIM 13 gt force clk 1 50 0 100 repeat 100 SIM 14 gt 102 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic VHDL simulation The force command is interpreted by VSIM to mean e force clk to the value 1 at 50 ns after the current time e then to 0 at 100 ns after the current time e repeat this cycle every 100 ns You will see the effects of this force command as soon as you tell the simulator to run Step 11 Now you will exercise two different Run functions Make these selections from the Main window menu bar Run gt Run 100 This causes the simulation to run and then stop after 100 ns ns is the default resolution on the command line use run 100 Run gt Run All This causes the simulator to run forever To stop the run go on to the next step on the command line use run all S
46. ample files from these exercises are located in the examples tcl_getstart originals directory Viewing source files If you would like to view the source for any of the Tcl files in our examples use the notepad command at either the ModelSim or VSIM prompt Here s the command for viewing the examples tcl file notepad examples tcl The file is opened in readme mode by default you can edit the file by making the Edit gt read only menu selection in the Main window make sure read only is NOT selected See The Main window tool bar p39 for more information The example procedure The Tcl source command reads the examples tcl file and defines the procedures within the file for use within the current environment the example procedure from this file is used for all of our examples Example syntax The Tcl procedure example defined in examples tcl is used to invoke all of our examples from the ModelSim prompt example lt tcl filename gt lt tcl procedure name gt Arguments lt tcl filename gt the Tcl file used for this example lt tcl procedure name gt one of the Tcl procedures defined within lt tcl filename gt Getting Started with ModelSim EE Tutorial Using ModelSim EE 125 Tel Tk and ModelSim Preparing for the Tcl Tk examples These steps must be completed before running the Tcl examples Step 1 Create and change to a new working directory for the Tcl Tk exercises Copy the lesson files to you
47. and clearing breakpoints as well as Step ing and Step Over ing function calls until you feel comfortable with the operation of these commands Step 24 Now let s get a Wave window view of the simulation activate the Wave window When the Wave window is first drawn there is one cursor in it at time zero Clicking anywhere in the waveform display brings that cursor to the mouse location Up to ten cursors can be present at the same time Cursors are displayed with a time box showing the precise simulation time at the bottom When you have more than one cursor each time box appears in a separate track at the bottom of the display 144 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic Verilog simulation Prop Window 16731 ns to 17104 ns Step 25 Try adding or removing cursors with the Cursor gt Add Cursor Delete Cursor commands When you add a cursor it is drawn in the middle of the display Once you have more than one cursor VSIM adds a delta measurement showing the time difference between the two cursor positions The selected cursor is drawn as a solid line all other cursors are drawn with dotted lines Step 26 Click in the waveform display Notice how the cursor closest to the mouse position is selected and then moved to the mouse position Another way to position multiple cursors is to use the mouse in the time box tracks at the bottom of the display Clicking anywhere in
48. archy of the design e list signals in the design e change list attributes e set a breakpoint e add and remove cursors in the waveform display If you ve completed any previous VHDL lesson you ll notice that the Verilog simulation process is almost identical to the VHDL process Step 1 Create a new directory and go there by entering these UNIX shell commands mkdir lt directory_name gt cd lt directory_name gt Step 2 Copy the Verilog files from the lt install_dir gt modeltech examples directory into the current directory by entering the command note the period specifying the current directory cp lt install_dir gt modeltech examples v Before you can compile a Verilog design you need to create a design library in the new directory If you are only familiar with interpreted Verilog simulators such as Cadence Verilog XL this will be a new idea for you Since ModelSim is a compiled Verilog it requires a target design library for the compilation ModelSim can compile both VHDL and Verilog code into the same library if desired Getting Started with ModelSim EE Tutorial Using ModelSim EE 135 Basic Verilog simulation Step 3 To create a new design library enter the following vlib work Remember a library directory should not be created using UNIX shell commands always use the Main window Library menu or the vlib command Next you need to compile the Verilog design The example design we ll be using
49. ary enter the following vlib work This creates a subdirectory named work This subdirectory contains a special file named _info Do not create these using UNIX shell commands always use the vlib command Step 4 Compile the file counter vhd by entering the command vcom counter vhd Step 5 Start the simulator by entering the command vsim The Load Design dialog box comes up as shown below 100 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic VHDL simulation The Load Design dialog box allows you to select the library and the top level design unit to simulate You can also select the resolution limit for this simulation By default the following will appear for this simulation run e Simulator Resolution default the default is 1 ns e Library work e Design Unit counter e Description entity Note If the Design Unit is an entity you can click on the plus box prefix shown below to view any associated architectures Step 6 Select the entity counter and choose Load to accept these settings Step 7 Now you can open all of the VSIM windows with this Main window menu selection View gt All on the command line use view Step 8 To display the top level signals in the List window select the Signals window and make this Signal menu selection View gt List gt Signals in Region on the command line use add list counter Getting Started with ModelSim EE Tutori
50. ases commands will invoke recursive invocations of the Tcl interpreter by passing in additional strings to execute procedures looping commands and conditional commands all work in this way ModelSim gains a programming advantage by using Tcl for its command language ModelSim can focus on simulation specific commands while Tcl provides many utility commands graphic interface features and a general programming interface for building up complex command procedures By using Tcl ModelSim need not re implement these features a benefit that allows it s graphic interface to remain consistent on all workstation platforms The only vestige of the host platform s graphic interface is the window frame manager Getting Started with ModelSim EE Tutorial Using ModelSim EE 121 Tel Tk and ModelSim The custom traffic light interface The subject of our Tcl Tk lesson is a simple traffic light controller The system is comprised of three primary components a state machine a pair of traffic lights and a pair of traffic sensors The components are described in three VHDL files traffic vhd the state machine queue vhd the traffic arrival queue and tb_traffic vhd the testbench You could of course simulate this system with ModelSim s familiar interface but Tcl Tk provides us the option to try something different Since we re simulating something most of us have seen and experienced before we can create an intuitive interfac
51. asker Prentice Hall Englewood Cliffs New Jersey 07632 USA 1995 IEEE Standard VHDL Language Reference Manual ANSI IEEE Std 1076 1993 Published by The Institute of Electrical and Electronics Engineers Inc 345 East 47th Street New York New York 10017 2394 USA ISBN 1 55937 376 8 June 1994 To purchase the standard write IEEE Customer Service Hoes Lane Tiscataway NJ 08855 1331 or phone 800 678 4333 908 562 5420 from outside the U S 908 981 9667 fax Getting Started with ModelSim EE Resources 161 Books Practical Programming in Tcl and Tk Brent Welch Prentice Hall Englewood Cliffs New Jersey 07632 USA 1995 Tcl and the Tk Toolkit John K Ousterhout published by Addison Wesley Publishing Company Inc ISBN 0 201 63337 X Verilog Language Reference Manual 2 0 Open Verilog International 15466 Los Gatos Blvd Suite 109 071 Los Gatos CA 95032 Phone 408 353 8899 fax 408 353 8869 email ovi netcom com Contact Lynn Horobin VHDL 2nd Edition Douglas L Perry McGraw Hill Inc Professional Publishing Group 11 West 19th Street New York New York 10011 USA 1993 VHDL Analysis and Modeling of Digital Systems Zainalabedin Navabi Northeastern University McGraw Hill Publishing Company College Division 1221 Avenue of the Americas New York New York 10020 USA 1993 VHDL Coding Styles and Methodologies Ben Cohen Kluwer Academic Publishers Boston Massachusetts USA 1995 ISBN 0 7923 9
52. ate Technologies 19310 Oak Street Aloha OR 97007 4422 USA Phone 503 591 1232 email ptkwt teleport com Model development with emphasis on communications and application specific memories ASIC PLD design Contact Phillip Tomson VAutomation Inc 20 Trafalgar Square Suite 443 Nashua NH 03063 USA Phone 603 882 2282 fax 603 882 1587 email eric vautomation com internet http www vautomation com Sythesizable HDL models Contact Eric Ryherd VHDL Technology Group 100 Broadhead Road Suite 140 Bethlehem PA 18017 USA Phone 610 882 3130 fax 610 882 3133 email wdb vhdl com VHDL training and consulting services Contact William D Billowitch Widman Associates 70 Crestmont Drive Oakland CA 94619 USA Phone 510 482 3564 fax 510 482 5339 Contact Bob Widman 166 Resources Getting Started with ModelSim EE Online resources Willamettte HDL Inc 14314 SW Allen Blvd Suite 625 Beaverton OR 97005 USA Phone 503 590 8499 fax 503 645 9728 email info whdl com internet http www whdl com Top down design methodologies for system board and ASIC design Online resources email omf_info cfi org newsnet news groups sci electronics cad comp arch fpga comp lang tcl comp lang verilog comp lang vhdl comp I si comp I si testing home pages http www model com http www vhdlLorg vhdl_intl http www e2w3 com http www translogiccorp com http www translogic nl web
53. ating Signals or Strobe or both must be selected The Triggers page includes these options Deltas Expand Deltas When selected with the Trigger on Signals check box displays a new line for each time step on which items change including deltas within a single unit of time resolution Deltas Collapse Deltas Displays only the final value for each time unit in the List window Deltas No Deltas No simulation cycle delta column is displayed in the List window 48 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window Trigger On Signals Triggers on signal changes Defaults to all signals Individual signals may be excluded from triggering by using the Prop gt Signals Props dialog box Trigger On Strobe Triggers on the Strobe Period you specify specify the first strobe with First Strobe at Trigger Gating Expression Enables triggers to be gated on and off by an overriding expression much like a hardware signal analyzer might be set up to start recording data on a specified setup of address bits and clock edges Affects the display of data not the acquisition of the data e Use Expression Builder button Opens the Expression Builder to help you write a gating expression e Expression Enter the expression for trigger gating into this field or use the Expression Builder select the Use Expression Builder button The expression is evaluated when the List window would normally ha
54. cated VSIM run or break com mand Getting Started with ModelSim EE Tutorial Using ModelSim EE 123 Tel Tk and ModelSim Tk widgets The intersection illustration points out several Tcl Tk widgets A widget is simply a user interface element like a menu or scrolled list Tk widgets are referenced within Tcl procedures to create graphic interface objects The Tk tool box comes with several widgets additional widgets can be created using these as a base Running the simulation The components of the intersection interface have the following effect within ModelSim Control used Effect in ModelSim Run 10000 button invokes the run command for 10000 ns Run Forever button invokes the run all command Break button invokes the break command light timing control invokes the force command with the arguments for the indicated signal and time arrival time control invokes the force command with the arguments for the indicated direction and time waiting queue any time you change a control the examine command is invoked to display the value of the waiting queue Since each control change invokes a new VSIM command this custom interface would save you time compared to invoking the commands from the command line or ModelSim menus 124 Tutorial Using ModelSim EE Getting Started with ModelSim EE Tel Tk and ModelSim Copies of the original example files Additional copies of the Tcl ex
55. che_set only Loading work memory WSIM 1 gt The menu bar at the top of the window provides access to a wide variety of simulation commands and ModelSim preferences The status bar at the bottom of the window gives you information about the data in the active ModelSim window The tool bar under the menu bar gives you access to the most common run commands no matter which VSIM window is active When a simulation is running the VSIM Main window displays a VSIM prompt allowing you to enter command line commands from within the graphic interface Messages output by VSIM during simulation are also displayed in this window You can scroll backward and forward through the current work history by using the vertical scrollbar You can also copy and paste using the mouse within the window see Editing the command line the current source file and notepads p40 The VSIM Main window menu bar tool bar and status bar are detailed below Getting Started with ModelSim EE ModelSim EE Graphic Interface 35 VSIM Main window The VSIM Main window menu bar The menu bar at the top of the VSIM Main window lets you access many ModelSim commands and features The menus are listed below with brief descriptions of the command s use Eile Library View Run Macro Options Window File menu Load New Design start a new simulation via the Load Design dialog box Restart restart the current simulation from time zero
56. command 103 170 Index Getting Started with ModelSim EE ABCDEFGHIJKLMNOPORSTUVWXYZ S Searching for HDL item names and transitions in the Wave window 93 153 for values and finding names in windows 29 150 in tree windows 150 Shortcuts List window 59 text editing 40 Wave window 59 94 155 Signal transitions searching for 93 153 Signals adding to a log file 68 adding to the Wave and List windows 68 applying stimulus to 66 102 displaying in Dataflow window 42 displaying values in Signals window 64 forcing signal and net values 66 in the List and Wave windows 109 listing in region 101 placing top level Verilog signals in the List and Wave window 137 saving values as binary log file 68 selecting signal types to view 66 specifying radix of 114 triggering listings for 113 viewing waveforms 79 Signals window see also Windows 64 Simulating applying stimulus see also VSIM command force applying stimulus to signals and nets 66 viewing results in List window 44 Simulation batch mode 116 executing commands at startup 118 Load Design dialog box 137 mixed VHDL Verilog 146 saving results in log file 117 single stepping 104 starting 108 Verilog 135 VHDL 99 Sorting sorting HDL items in VSIM windows 30 Source code viewing 70 Source window see also Windows 70 Status bar Main window 39 Structure window see also Windows 74 T Tcl Man Pages in Help menu 38 Text editing see Editing Tool bar Main wind
57. consists of two Verilog source files each containing a unique module The file counter v contains a module called counter which implements a simple 8 bit binary up counter The other file tcounter v is a testbench module test_counter used to verify counter Under simulation you will see that these two files are configured hierarchically with a single instance instance name dut of module counter instantiated by the testbench You ll get a chance to look at the structure of this code later For now you need to compile both files into the work design library Step 4 Compile the Verilog files by entering the command vlog counter v tcounter v Note that the order in which you compile the two Verilog modules is not important This may again seem strange to Verilog XL users who understand the possible problems of interface checking between design units or compiler directive inheritance ModelSim defers such checks until the design is loaded by VSIM the HDL simulator So it doesn t matter here if you choose to compile counter v before or after tcounter v Step 5 Start the simulator by entering the command vsim 136 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic Verilog simulation The Load Design dialog box comes up as shown below Load Design The Load Design dialog box allows you to select a design unit to simulate from the specified library You can also select the resolution limit for the simula
58. d arithmetic packages vhdl_src arithmetic std_arit vhd source for Mentor Graphics arithmetic libraries vhdl_src ieee mti_numeric_bit vhd mti_numeric_std vhd stdlogic vhd sources for rebuilding basic IEEE std_logic_1164 library and accelerated IEEE arithmetic packages Getting Started with ModelSim EE ModelSim EE Installation 23 Installed directories and files Directory Files amp subdirectories Description vhdl_src mentor numeric_extra vhd numeric_signed vhd numeric_unsigned vhd qsim_logic vhd qsim_relations vhd qsim_tc vhd std_logic_1164_ext vhd source for Mentor Graphics QuickHDL add ons vhdl_src std standard vhd textio vhd sources for VHDL STD library and package TEXTIO vhdl_src std_devloperskit examples iopakb vhd iopakp vhd mempakb vhd mempakp vhd regpakb vhd regpakp vhd simflagb vhd simflagp vhd synthreg vhd timingb vhd timingp vhd sources and examples for MGC standard developer s kit vhdl_src synopsys mti_std_logic_arith vhd mti_std_logic_misc vhd mti_std_logic_signed vhd mti_std_logic_unsigned vhd std_logic_textio vhd syn_ari vhd syn_attributes vhd syn_type vhd sources for rebuilding accelerated arithmetic packages vhdl_src verilog vitypes vhd source for rebuilding Verilog library vhdl_src vital2 2b prmtvs_b vhd prmtvs_p vhd timing_b vhd timing_p vhd sources for
59. d list add wave log Or add all the items in the design with add list add wave log r If the target window Wave or List is closed ModelSim opens it when you when you invoke the command Finding HDL items in the Signals window Find the specified text string within the Signals window choose the Name or Value field to search and the search direction Forward or Reverse Getting Started with ModelSim EE ModelSim EE Graphic Interface 69 Source window Source window The Source window allows you to view and edit your HDL source code Select an item in the Structure window p74 or use the File menu to add a source file to the window then select a process in the Process window p62 to view that process an arrow next to the line numbers indicates the selected process Eile Edit Object Options Window Step Step Over end loop return result end increment ctr process clk reset begin if reset 1 then if reset event then count lt others gt 0 after tpd_r end if elsif clk event and clk 1 then count lt increment count after tpd_clk_to_c end if end process end only If any breakpoints have been set each is signified by a colored dot next to a line number at the left side of the window pane To set a breakpoint click at or near the line number in the numbered area at the left side of the window The breakpoints are toggles so you can click again to
60. d widgets to display simulation information Example 6 add slider widgets to control the simulation Example 7 draw a state machine that represents the simulation Basic Verilog simulation Mixed VHDL Verilog simulation Finding names and searching for values Finding items by name in tree windows Searching for item values in the List and Wave windows 99 107 116 118 120 120 121 122 125 125 125 126 127 128 129 130 131 132 133 135 146 150 150 150 8 Table of Contents Getting Started with ModelSim EE Using the Wave window Using time cursors in the Wave window Zooming changing the waveform display range Wave window keyboard shortcuts Continuing with ModelSim for workstations A Help Updates and Licensing p157 Help Updates ModelSim EE Licensing Getting help B Resources p161 Books Organizations Corporations amp Consultants Online resources Index p169 152 152 153 155 156 157 158 158 160 161 163 164 167 Getting Started with ModelSim EE Table of Contents 9 10 Table of Contents Getting Started with ModelSim EE 1 Introduction Chapter contents Software versions ee ee ee oT Standardssupported s 2 2 2 2 ew e bo we ew ue he dD Assumptions gt gt s ke Oe ee ww ee B Sections In this OES ke w om e e bo om op
61. delete an existing breakpoint There is no limit to the number of breakpoints you can set To look at a file that is not currently being displayed use the Structure window p74 to select a different design unit or use the Source menu selection File gt Open The pathname of the source file is indicated in the header of the Source window You can copy and paste text between the Source window and the VSIM Main window p35 select the text you want to copy then paste it into the Main window with the middle mouse button 70 ModelSim EE Graphic Interface Getting Started with ModelSim EE Source window The Source window menu bar The following menu commands are available from the Source window menu bar File menu New edit a new source file Open select a source file to open Save save the current source file Save_As save the current source file with a different name Close close this copy of the Source window you can create a new window with View gt New from the The VSIM Main window menu bar p36 Edit menu To edit a source file make sure the Read Only option in the Source Options dialog box is not selected use the Source menu Options gt Options selection lt editing option gt basic editing options include Cut Copy Paste Select All and Unselect All see Editing the command line the current source file and notepads p40 Find find the specified text string within the source
62. depth look at ModelSim s graphic interface see ModelSim EE Graphic Interface p27 Standards supported ModelSim VHDL supports both the IEEE 1076 1987 and 1076 1993 VHDL standards Any design developed with ModelSim will be compatible with any other VHDL system that is compliant with either IEEE Standard 1076 1987 or 1076 1993 ModelSim Verilog is based on the IEEE Std 1364 1995 IEEE Standard Hardware Description Language Based on the Verilog Hardware Description Language The Open Verilog International Verilog LRM version 2 0 is also applicable to a large extent The PLI is supported on PCs and workstations while VCD support is available for workstation users only In addition all products support SDF 1 0 2 0 and 2 1 VITAL 2 2b and VITAL 795 12 Introduction Getting Started with ModelSim EE Assumptions Assumptions We assume that you are familiar with the use of your operating system You should be familiar with the window management functions of the interface on your workstation either OpenWindows or OSF Motif on SPARCstations and OSF Motif on IBM and Hewlett Packard workstations In addition we assume that you have a working knowledge of VHDL and Verilog Although ModelSim is an excellent tool to use while learning HDL concepts and practices this guide is not written to support that goal If you need more information about HDLs visit the Model Technology home page at http www model com You can also contact y
63. descriptions Setting Source window options Structure window The Structure window menu bar Variables window The Variables window menu toa 31 34 35 36 39 39 40 42 43 43 44 45 46 47 50 52 55 56 56 59 59 60 62 63 64 65 66 66 68 69 70 71 72 72 72 74 76 77 78 Getting Started with ModelSim EE Table of Contents 7 Wave window Wave window action Viet The Wave window menu bar Setting Wave window display properties Adding HDL items in the Wave window Editing and formatting HDL items in the Wave window Sorting a group of HDL items Finding items by name or value in the Wave window Searching for item values in the Wave window Using time cursors in the Wave window Zooming changing the waveform display range Wave window keyboard shortcuts 4 Tutorial Using ModelSim EE p97 Basic VHDL simulation Debugging a VHDL design Running a batch mode simulation Executing commands at startup Tcl Tk and ModelSim Examples in this lesson How Tcl Tk works with ModelSim The custom traffic light interface Copies of the original example files Viewing source files The example procedure Preparing for the Tcl Tk exanigles Example 1 create a hello world button widia Example 2 add a procedure that gets called by a button pish Example 3 introduction of the traffic intersection widget Example 4 connect traffic lights to the simulation i Example 5 ad
64. display it Step 2 Load the VHDL libraries using this command at the ModelSim prompt vsim lib vhdl work tb_traffic Be sure you invoke this command before the start of the connect_lights procedure if you don t load the libraries you won t have a design to simulate Step 3 Connect the lights to the simulation with this command example lights tcl connect_lights Step 4 Edit lights tcl with the notepad to add a when statement for the North South light You need to add this because the current statement is for the East West light only You ll find the code commented out toward the end of the file 130 Tutorial Using ModelSim EE Getting Started with ModelSim EE Tel Tk and ModelSim Example 5 add widgets to display simulation information For this example you will add queue widgets to display the sum of the length of each pair of queues as we simulate Step 1 If the intersection widget is not already displayed run this series of commands Draw the intersection xample intersection tcl draw_intersection Load the design vsim lib vhdl work tbh_traffic Connect the lights example lights tcl connect_lights If the intersection widget is already displayed you don t need to re draw it If the Connected to Simulation message is displayed you don t need to load the design or re connect the lights Step 2 The East West widget for displaying the total East West queue length is already provided Let s
65. dow to view all of the menus Step 14 Select Run gt 100 ns This causes the simulation to run and then stop after 100 ns the default simulation length Instead of clicking the RUN button you could also type the run command To try it now type run 500 Now the simulation has run for a total of 600ns the default 100ns plus the 500 you just asked for A status bar reflects this information at the bottom of the Main window Step 15 The last command you typed run 500 caused the simulation to advance for 500ns You can also advance simulation to a specific time Type run 3000 This advances the simulation to time 3000ns Note that the simulation actually ran for 2400ns 3000 600 Step 16 Now select Run gt Time All This causes the simulator to run forever To stop the run go on to the next step 140 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic Verilog simulation Step 17 Select the Break button an arrow in the Source window points to the next HDL statement to be executed Object Option module test_counter reg clk rst wire 7 0 count counter 5 10 dut count clk rst initial Clock generator begin clk 0 10 forever 10 clk clk end initial Test stimulus begin rst 0 You window won t look exactly like the illustration because your simulation very likely stopped at a different point Next we ll take a brief look at some interactiv
66. e debug features of the ModelSim environment To start with let s see what we can do about the way the List window presents its data Step 18 In the List window select test_counter count From the List window menu bar select Prop gt Signal Props The Modify Signal Properties list dialog box is opened Getting Started with ModelSim EE Tutorial Using ModelSim EE 141 Basic Verilog simulation Modify Signal Properties list test_counter count Select a display radix of Decimal for the signal count Click OK This causes the List window output to change the count signal is now listed in decimal rather than the default binary Step 19 Let s set a breakpoint at line 30 in the counter v file which contains a call to the Verilog function increment To do this select dut counter in the Structure window Move the cursor to the Source window and scroll the window to display line 30 Click at or near line number 30 to set a breakpoint the executable line number is displayed in green 142 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic Verilog simulation Eile Edit Object Options Window Step Step Over begin increment i val i carry carry val i amp carry end end endfunction always if posedge clk or posedge rst rst count tpd_reset_to_count h00 else count lt tpd_clk_to_count increment count endmodule You will see a dot appear next to
67. e it to others You shall take appropriate action to protect the confidentiality of the source code of the SOFTWARE You shall not reverse assemble reverse compile or otherwise reverse engineer the SOFTWARE in whole or in part The provisions of this section shall survive the termination of this Agreement 6 TITLE Title to the SOFTWARE licensed to you or copies thereof are retained by MTI or third parties from whom MTI has obtained a licensing right 7 OTHER RESTRICTIONS You may not rent or lease the SOFTWARE You shall not mortgage pledge or encumber the SOFTWARE in any way You shall ensure that all support service is performed by MTI or its designated agents You shall notify MTI of any loss of the SOFTWARE 8 TERMINATION MTI may terminate this Agreement or any license granted under it in the event of breach or default by you In the event of such termination all applicable SOFTWARE shall be returned to MTI or destroyed 9 EXPORT You agree not to allow the MTI SOFTWARE to be sent or used in any other country except in compliance with this license and applicable U S laws and regulations If you need advice on export laws and regulations you should contact the U S Department of Commerce Export Division Washington DC 20230 USA for clarification Important Notice Any provision of Model Technology Incorporated SOFTWARE to the U S Government is with Restricted Rights as follows Use duplication or disclosure by the Govern
68. e items already in the List window menu selection Edit gt select Cut Copy Paste Delete Combine Select All or Unselect All drag and drop within the List window Adding HDL items to the List window p50 set display properties such as name length trigger on options delta views and strobe timing menu selection Prop gt Display Props Setting List window display properties p47 format an item s radix label width and triggering properties menu selection Prop gt Signal Props Editing and formatting HDL items in the List window p52 save your listing to an ASCII file menu selection File gt Write List select tabular events or TSSI format Saving List window data to a file p60 save your List window configuration for future use menu selection File gt Save Format Adding HDL items to the List window p50 reuse a List window configuration menu selection File gt Load Format Adding HDL items to the List window p50 Getting Started with ModelSim EE ModelSim EE Graphic Interface 45 List window Action Menu or mouse See also finding an HDL item by name menu Selection Finding items by name in Edit gt Find the List window p56 finding the value of an HDL item menu selection Searching for item values Edit gt Search in the List window p56 set delete or go to a time marker in menu selection S
69. e simulator and specify the top level design unit to be simulated by entering the following command at the shell prompt vsim counter Notice that the simulator loads the design unit without displaying the Load Design dialog box This is handy if you are simulating the same design unit over and over Also notice that all the windows are open This is because the view command is included in the macro that you executed at startup 118 Tutorial Using ModelSim EE Getting Started with ModelSim EE Executing commands at startup Step 5 If you plan to continue with the following practice sessions keep ModelSim running If you would like to quit the simulator enter the following command at the VSIM prompt VSIM gt quit force To read more about the modelsim ini file and batch command line modes see the ModelSim EE PLUS Reference Manual Getting Started with ModelSim EE Tutorial Using ModelSim EE 119 Tel Tk and ModelSim Tcl Tk and ModelSim This lesson is divided into several Tcl examples intended to give you a sense of Tcl Tk s function within ModelSim The examples include a custom simulation interface created with Tcl Tk You must be using ModelSim EE PLUS or ModelSim EE VHDL to complete these exercises Examples in this lesson Example 1 create a hello world button widget p127 Example 2 add a procedure that gets called by a button push p128 Example 3 introduction of the traffic intersection wid
70. e unique to the simulation The example assumes that source files were previously compiled Here s how it works gt VHDL source files describe the system gt Tcl procedures create and connect the interface plus the source files to ModelSim gt ModelSim commands are run via the new interface using the Tcl procedures draw_intersection traffic vhd queue vhd tb_traffic vhd connect_lights vsim lib vhdl work tb_traffic examine value lt light_timing gt draw_queues draw_controls force freeze var val ns 122 Tutorial Using ModelSim EE Getting Started with ModelSim EE Tcl Tk and ModelSim The result is a traffic intersection interface similar to this illustration frame and scale widget A scale widget within a frame widget creates an analog entry device for a minimum to a maximum val ue and invokes the VSIM force command entry widget The entry widget contained within a frame widget can facilitate en try or in this case provides a display for a VSIM exam ine command label widget A static label is add ed to the end of the connect_lights pro cedure to indicate connection to the simulator wm widget Calls to the workstation window man ager to create the traffic window canvas widget The background lines and traffic lights are created with the canvas widget button widgets Each button in vokes the indi
71. e yourself a clear view of all open windows VSIM Signals List Wave Structure and Source then click inside the Structure window Eile Edit Window test counter test counter r increment Notice how this window describes the hierarchical structure of the design In the illustration the Structure window shows three hierarchical levels test_counter counter and the function called increment If test_counter is not displayed you simulated counter instead of test_counter You can navigate within the hierarchy by clicking on any line with a expand or contract symbol The same navigation technique works anywhere you find these symbols within ModelSim Step 12 Click on Function increment and notice how other V SIM windows are automatically updated as appropriate Getting Started with ModelSim EE Tutorial Using ModelSim EE 139 Basic Verilog simulation Specifically the Source window displays the Verilog code at the hierarchical level you selected in the Structure window The source file name is also displayed in the Source window title bar Using the Structure window in this way is analogous to scoping commands in interpreted Verilogs For now make sure the test_counter module is showing in the Source window by clicking on the top line in the Structure window Step 13 Now you will exercise different Run functions They are found in the Main window under the Run menu You may need to expand the win
72. ech docs directory 156 Tutorial Using ModelSim EE Getting Started with ModelSim EE A Help Updates and Licensing Help Technical Support for Mentor Graphics Customers For customers who purchased from Mentor Graphics in North America the support line number is 800 547 4303 The web site is http supportnetweb mentorg com For customers who purchased from Mentor Graphics outside of North America please contact your local support organization Technical Support for Model Technology Customers For customer who purchased from Model Technology please contact Model Technology via email support model com The telephone number for the support line is 503 641 1340 from 8 00 AM to 5 00 PM Pacific Time Be sure to have your server hostID or hardware security key serial number handy You can also use our web site for technical support http www model com Technical Support for Other Channels For customers who purchased ModelSim as part of a bundled product from an OEM or VAR support is available at the following e Annapolis Microsystems email wftech annapmicro com telephone 410 841 2514 web site _http www annapmicro com Exemplar Logic email support exemplar com telephone 510 789 3333 web site http www exemplar com Hewlett Packard EEsof email hpeesof_support hp com telephone 1 800 HPEESOF 1 800 473 3763 web site http www hp com go hpeesof Getting Started with ModelSim
73. edit the source to add a display for the North South direction Use this command notepad queues tcl Cut paste and modify the East West widget to display the North South total queue length The Queue Display widget consists of an enclosing frame with two label widgets The first label is a simple text string The second label is the value of the queue length The text in the second label will be updated whenever the queue lengths change The update is accomplished by using a when statement Step 3 After you have added your North South widget run your program by invoking this command xample queues tcl draw_queues Getting Started with ModelSim EE Tutorial Using ModelSim EE 131 Tel Tk and ModelSim Example 6 add slider widgets to control the simulation This example will add Tk scale widgets that will control the arrival rates and the length of the lights Step 1 If the intersection widget is not already displayed run this series of commands Draw the intersection xample intersection tcl draw_intersection Load the design vsim lib vhdl work tbh_traffic Connect the lights to the simulation example lights tcl connect_lights Draw the queue length display xample queues tcl draw_queues If the intersection widget is already displayed you don t need to re draw it If the Connected to Simulation message is displayed you don t need to load the design or re connect the lights If the que
74. ee Setting List window display properties p47 Once display properties have been set you can add items to the windows or log file in several ways Adding items from the Main window command line Use the View menu with either the Wave List or Log selection to add HDL items to the Wave window p79 List window p44 or a log file respectively The log file is written as an archive file in binary format and is used to drive the List and Wave window at a later time Once signals are added to the log file they cannot be removed If you begin a simulation by invoking VSIM with the view lt logfile_name gt option VSIM reads the log file to drive the Wave and List windows Choose one of the following options ModelSim opens the target window for you Selected Signal Signals in Region Signals in Design 68 ModelSim EE Graphic Interface Getting Started with ModelSim EE Signals window e Selected signal Lists only the item s selected in the Signals window Signals in region Lists all items in the region that is selected in the Structure window e Signals in design Lists all items in the design Adding items from the Main window command line Another way to add items to the Wave or List window or the log file is to enter the one of the following commands at the VSIM prompt add list add wave log lt item_name gt lt item_name gt You can add all the items in the current region with this command ad
75. elSim Reference Manual Window features ModelSim s graphic interface provides many features that add to its usability features common to many of the windows are described below Feature Feature applies to these windows Drag and Drop p28 Dataflow List Signals Source Structure Variables and Wave windows Automatic window updating p29 Dataflow Process Signals and Structure Finding names and searching for values p29 various windows Sorting HDL items p30 Process Signals Source Structure Variables and Wave windows Multiple window copies p30 all windows except the VSIM Main window Menu tear off p30 all windows Tree window hierarchical view p31 all windows Tree window hierarchical view p31 Structure Signals Variables and Wave windows Drag and Drop Drag and drop of HDL items is possible between the following windows Using the left mouse button click and release to select an item then click and hold to drag it Drag items from these windows Dataflow List Signals Source Structure Variables and Wave windows 28 ModelSim EE Graphic Interface Getting Started with ModelSim EE Window features Drop items in these windows List and Wave windows Note that drag and drop works to move items within the List and Wave windows as well Automatic window updating Selecting an item in the following windows automatically updates other related ModelSi
76. enu selection Prop gt Display Props Editing and formatting HDL items in the Wave window p86 zoom in or out to change the amount of simulation time shown in the window menu selection Zoom gt select zoom option center mouse button click and drag to zoom rubberband section Zooming changing the waveform display range p93 change signal properties radix color height format analog literal logic event menu selection Prop gt Signal Props Setting Wave window display properties p83 save the Wave window configuration load a new configuration menu selection File gt Save or Load Format adding and editing items in the name value pane menu selection Edit gt select edit option Adding HDL items in the Wave window p84 Getting Started with ModelSim EE ModelSim EE Graphic Interface 81 Wave window The Wave window menu bar The following menu commands and button options are available from the Wave window menu bar If you see a dotted line at the top of a drop down menu click and drag the dotted line to create a separate menu window File menu Write Postscript save the waveform display as a Postscript file Load Format run a Wave window format do file previously saved with Save Format Save Format saves the current Wave window display and signal preferences to a do macro file running the do file will reformat the
77. etting time markers in the listing Markers gt choose Add Marker the List window p59 Delete Marker or Goto The List window menu bar The following menu commands and button options are available from the List window menu bar File menu Write List format save the listing as a text file in one of three formats tabular events or TSSI Load Format run a List window format do file previously saved with Save Format Save Format saves the current List window display and signal preferences to a do macro file running the do file will reformat the List window to match the display as it appeared when the do file was created Close close this copy of the List window you can create a new window with View gt New from the The VSIM Main window menu bar p36 Edit menu Cut cut the selected item field from the listing see Editing and formatting HDL items in the List window p52 Copy copy the selected item field Paste paste the previously cut or copied item to the left of the currently selected item Delete delete the selected item field 46 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window Combine combine the selected fields into a user defined bus keep copies of the original items rather than moving them Find find specified item label within the List window Search search the List window for a specified value or the next t
78. ey functions as the meta key depends on how your X windows KeySym mapping is set up You may need help from your system administrator to map a particular key such as the lt alt gt key to the meta KeySym Getting Started with ModelSim EE ModelSim EE Graphic Interface 41 Dataflow window Dataflow window The Dataflow window allows you to trace VHDL signals or Verilog nets through your design VHDL signals or processes e Shows a signal in the center of the window with all the processes that drive the signal on the left and all the processes that read the signal on the right or e shows a process with all the signals read by the process shown as inputs on the left of the window and all the signals driven by the process on the right Verilog nets or processes e Shows a net in the center of the window with all the processes that drive the net on the left and all the processes triggered by the net on the right or e shows a process with all the nets that trigger the process shown as inputs on the left of the window and all the nets driven by the process on the right P E e Window paddr op p ASSIGNE15 Aop c sO line__34 Mop c st line__34 addr Hop c s2 line__34 fop c s3 line__34 es signal or net paddr process ASSIGN 15 42 ModelSim EE Graphic Interface Getting Started with ModelSim EE Dataflow window The Dataflow window menu bar The following menu commands and button options are
79. from the Wave window Edit menu p82 menu You can also click drag to move items within the name value windowpane e to select several contiguous items click drag to select additional items above or below the original selection e to select several items randomly Control click to add or subtract from the selected group e to move the selected items re click on one of the selected items and drag to the new location To format an item Select the item s label in the left name value pane or its waveform in the right windowpane then use the Prop gt Signal Props menu selection The resulting Wave Signal Properties dialog box allows you to set the item s height color format range and radix 86 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window The Wave Signal Properties dialog box includes these options e Signal Indicates the name of the currently selected signal e Label Allows you to specify a new label in the name value pane for the selected item Height Allows you to specify the height in pixels of the waveform Color Lets you override the default color of a waveform by selecting a new color from the color palette or by entering an X Windows color name Format Analog Step Displays a waveform of an integer real or time type with the height and offset determined by the Pixels specification and the value of the item Getting Started with ModelSim EE ModelSim
80. g using the Cursor gt Delete Cursor menu selection Getting Started with ModelSim EE ModelSim EE Graphic Interface 91 Wave window Edit Cursor Zoom Prop Window fsum 00000011 Finding a cursor The cursor value on the Goto list corresponds to the simulation time of that cursor Choose a specific cursor view with Cursor gt Goto menu selection Making cursor measurements Each cursor is displayed with a time box showing the precise simulation time at the bottom When you have more than one cursor each time box appears in a separate track at the bottom of the display VSIM also adds a delta measurement showing the time difference between the two cursor positions If you click in the waveform display the cursor closest to the mouse position is selected and then moved to the mouse position Another way to position multiple cursors is to use the mouse in the time box tracks at the bottom of the display Clicking anywhere in a track selects that cursor and brings it to the mouse position The cursors are designed to snap to the closest wave edge to the left on the waveform that the mouse pointer is positioned over You can control the snap distance from Wave category in the dialog box available from the Properties gt Display menu selection see Setting Wave window display properties p83 You can position a cursor without snapping by dragging in the area below the waveforms 92 ModelSim EE Graphic Interface
81. get p129 Example 4 connect traffic lights to the simulation p130 Example 5 add widgets to display simulation information p131 Example 6 add slider widgets to control the simulation p132 Example 7 draw a state machine that represents the simulation p133 More information on Tcl Tk Please note that this lesson is not intended as a Tcl tutorial If you would like additional Tcl Tk information check out our Resources p161 chapter it contains additional information on the following Tcl Tk reference sources e Books p161 e Online resources p167 120 Tutorial Using ModelSim EE Getting Started with ModelSim EE Tel Tk and ModelSim How Tcl Tk works with ModelSim ModelSim incorporates Tcl as an embedded library package The Tcl library consists of a parser for the Tcl language routines to implement the Tcl built in commands and procedures that allow Tcl to be extended with additional commands specific to Model Sim ModelSim generates Tcl commands and passes them to the Tcl parser for execution Commands may be generated by reading characters from an input source or by associating command strings with ModelSim s user interface features such as menu entries buttons or keystrokes When the Tcl library receives commands it parses them into component fields and executes built in commands directly For commands implemented by ModelSim Tcl calls back to the application to execute the commands In many c
82. gion is selected in that window the Process window will in turn update the Variables window p77 Getting Started with ModelSim EE ModelSim EE Graphic Interface 75 Structure window The Structure window menu bar The following menu commands are available from the Structure window menu bar File menu Save_As save the structure tree to a text file viewable with the ModelSim notepad Close close this copy of the Structure window you can create a new window with View gt New from the The VSIM Main window menu bar p36 Edit menu Editing options basic editing options include Copy Select All and Unselect All Sort sort the structure tree in either ascending descending or declaration order Find Window menu find specified text string within the structure tree choose the label for instance entity module or architecture to search for and the search direction forward or reverse lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden 76 ModelSim EE Graphic Interface Getting Started with ModelSim EE Variables window Variables window The Variables window lists the names of HDL items within the current process followed by the current value s associated with each name The pathname of the current process is displayed at the bottom of the window Eile Edit View Window SS data_mem 0000000000000000 atag_mem 0
83. gn including ASIC FPGA synthesis and modeling analog EMI and mechanical engineering Contact Dave Matthews Proxy Modeling 1580 Washington Blvd Fremont CA 94539 USA Phone 510 440 VHDL Provides modeling and consulting Contact Keith G Irwin or Pam G Rissmann Saros Technology Limited St Michaels House 94 High Street Wallingford Oxon OX10 OBW United Kingdom Phone 011 44 1491 837787 fax 011 44 1491 837477 email carey saros co uk internet http www saros co uk Providers of ModelSim support in the UK Developers of the VHDL editor Turbo Writer Contact Carey Sayer Getting Started with ModelSim EE Resources 165 Corporations amp Consultants Seva Technologies Inc 200 Brown Road Suite 103 Fremont CA 94539 USA Phone 510 249 9085 fax 510 249 9082 email lfs seva com VHDL training consulting services Contact Larry Saunders System Simulation Solutions 1100 NW Compton Drive Beaverton OR 97006 USA Phone 503 690 1200 VHDL modeling services Contact James B Morris Topdown Design Solutions 71 Spit Brook Road Suite 301 Nashua NH 03060 USA Phone 603 888 8811 fax 603 888 7694 email sales topdown com VHDL training courses and consulting services are also available Contact Art Pisani TM Associates Training Specialists 14420 S Kelmsley Drive Oregon City OR 97045 Phone 503 656 4457 fax 503 656 4775 email twille europa com HDL training specialists Contact Tom Wille TransG
84. ick twice on an item name to move that item to the center of the Dataflow window The Dataflow window will display the current process when you single step or when VSIM hits a breakpoint List window The List window displays the results of your simulation run in tabular format The window is divided into two adjustable panes which allows you to scroll horizontally through the listing on the right while keeping time and delta visible on the left Eile Edit Markers Prop Window BPRROBIOCOON BRR EER RH pd d HDL items viewed within the List window The following HDL items for VHDL and Verilog are viewable in the List window VHDL items Verilog items signals and process variables nets and register variables Note Constants generics parameters and memories are not viewable in the List or Wave windows 44 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window List window action list This action list provides a quick reference to menu selections and mouse actions in the List window See the Tree window action list p32 for additional information Action Menu or mouse See also place specific HDL items in the List window Signals window p64 menu View gt List choose Selected Signals Signals in Region or Signals in Design drag and drop from the Process Signals or Signals window Adding HDL items to the List window p50 move or delet
85. ics parameters and memories are not viewable in the List or Wave windows Wave window action list This action list provides a quick reference to menu selections and mouse actions in the Wave window See the Tree window action list p32 for additional information Action Menu or mouse See also collapse and expand composites left mouse button click on a or box circle Tree window action list p32 move items make single and multiple item selections left mouse button and control left mouse button Tree window action list p32 search for transitions in the waveform display and signal values menu selection Edit gt Find Searching for item values in the Wave window p89 find an item name or value menu selection Edit gt Find Finding items by name or value in the Wave window p89 find a specific cursor menu selection Cursor gt Goto Making cursor measurements p92 sort items ascending descending declaration order menu selection Edit gt Sort Sorting a group of HDL items p89 making cursor measurements menu selection Cursor gt Add Cursor Making cursor measurements p92 80 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window Action Menu or mouse See also reformat items change their display colors and position them within the window m
86. im EE Licensing Getting help The best thing is to email us a test case Our email address is support model com The next best thing is to copy print the following form fill it out and fax it to us at 503 526 5473 Model Technology Fax Support Form Your name Your company Your phone number Your FAX number Your email address ModelSim Version Use the Help About dialog box with Windows type veom for workstations Description of the problem please include the exact wording of any error messages PC hardware security key serial number Host ID of licence server for workstations 160 Help Updates and Licensing Getting Started with ModelSim EE B Resources Appendix contents BOOKS s so mo sos A amp Ye es amp 2 Bete 2 w DOL Orcanizatons s ao eon o an Oe ee OD Corporations amp Consultants aaa a 164 Onli n resources o oo e o e a e a a ee UCU CT Books Applications of VHDL to Circuit Design Randolph E Harr and Alec G Stanculescu Kluwer Academic Publishers 101 Philip Drive Assinippi Park Norwell Massachusetts 02061 USA 1991 Chip Level Modeling with VHDL James R Armstrong Prentice Hall Englewood Cliffs New Jersey 07632 USA 1988 The Designer s Guide to VHDL Peter J Ashenden Morgan Kaufmann Publishers Inc 340 Pine Street Sixth Floor San Francisco California 94104 3205 USA 1995 ISBN 1 55860 270 4 A Guide to VHDL Syntax Jayaram Bh
87. ing to press drag to the right and then release at the right side of the desired zoom interval Zooming keyboard shortcuts See Wave window keyboard shortcuts p94 for a complete list of Wave window keyboard shortcuts Wave window keyboard shortcuts Using the following keys when the mouse cursor is within the Wave window will cause the indicated actions Key Action il or zoom in o O or zoom out f or F zoom full lor L zoom last rorR zoom range lt arrow up gt scroll waveform display up lt arrow down gt scroll waveform display down lt arrow left gt scroll waveform display left lt arrow right gt scroll waveform display right lt page up gt scroll waveform display up by page 94 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window Key Action lt page down gt scroll waveform display down by page lt tab gt searches forward right to the next transition on the selected signal lt shift tab gt searches backward left to the previous transition on the selected signal lt Control f gt opens the find dialog box search within the specified field in the wave name pane for text strings Getting Started with ModelSim EE ModelSim EE Graphic Interface 95 96 ModelSim EE Graphic Interface Getting Started with ModelSim EE 4 Tutorial Using ModelSim EE Chapter contents
88. ion Window features Drag and Drop Automatic window ipag Finding names and searching for ee Sorting HDL items Multiple window copies Menu tear off Mn W uw 11 12 13 13 14 14 14 15 15 16 18 22 25 28 28 28 29 29 30 30 30 6 Table of Contents Getting Started with ModelSim EE Tree window hierarchical view Window overview VSIM Main window The VSIM Main ee menu bie The Main window tool bar The Main window status bar Editing the command line the current source file ani noemd Dataflow window The Dataflow window menu ba F Tracing HDL items with the Dataflow widya List window List window action liat The List window menu bar Setting List window display jaie Adding HDL items to the List window Editing and formatting HDL items in the List nko Examining simulation results with the List window Finding items by name in the List window Searching for item values in the List window Setting time markers in the List window List window keyboard shortcuts Saving List window data to a file Process window The Process window menu hay Signals window The Signals window menu hae Selecting HDL item types to view Forcing signal and net values Adding HDL items to the Wave and List endow ora a og file Finding HDL items in the Signals window Source window The Source window menu he A Editing the source file in the Source viiden Checking HDL item values and
89. is will open the Modify Signal Properties list dialog box gL Modify Signal Properties list Step 24 In the List window select the signal you want to change then make the property changes in the dialog box Make the following property changes e Select signal a then click Decimal then click Apply e Select signal b then click Decimal then Apply e Select signal sum then click Decimal then OK This brings you to the end of this lesson but feel free to experiment further with the menu system When you are ready to end the simulation session quit VSIM without saving data by entering the following command at the VSIM prompt VSIM gt quit force Getting Started with ModelSim EE Tutorial Using ModelSim EE 115 Running a batch mode simulation Running a batch mode simulation The goals for this lesson are e run a batch mode VHDL simulation e execute a macro file e view a saved simulation Step 1 To set up for this lesson you Il need to create a new directory and library and copy and compile a VHDL file Once you have created and moved to your new directory invoke these commands cp lt install_dir gt modeltech examples counter vhd vlib work vcom counter vhd Step 2 You will use a macro file that provides stimulus for the counter For your convenience a macro file has been provided with ModelSim EE You need to copy this macro file from the installation directory by entering the command
90. lSim EE Basic VHDL simulation Basic VHDL simulation The goals for the first lesson are create a library compile a VHDL file start the simulator understand the basic VSIM windows mouse and menu conventions run VSIM using the run command list some signals use the waveform display force the value of a signal single step through a simulation run set a breakpoint use the Wave window Many of the steps in this lesson are accomplished by a button or menu selection When appropriate command line equivalents for button and menu selections are shown in parentheses at the end of the step As you work on the lessons keep an eye on the Main window transcript The commands invoked by buttons and menu selections are echoed there Note that neither the prompt nor the Return that ends a command line is shown in the examples Step 1 Create a new directory and go there by entering the UNIX shell commands mkdir lt directory_name gt cd lt directory_name gt Getting Started with ModelSim EE Tutorial Using ModelSim EE 99 Basic VHDL simulation Step 2 Copy the VHDL files from the lt install_dir gt modeltech examples directory into the current directory by entering the command note the period specifying the current directory cp lt install_dir gt modeltech examples vhd Step 3 Before you compile any HDL code you need a design library to hold the compilation results To create a new design libr
91. lSim EE Tutorial Using ModelSim EE 107 Debugging a VHDL design ModelSim modifies the modelsim ini file for you Step 4 Start the simulator by entering the following command at the shell prompt vsim The Load Design dialog box is displayed as shown below B adder E addem counter test_adder_behavioral test_adder_structural testbench 108 Tutorial Using ModelSim EE Getting Started with ModelSim EE Debugging a VHDL design Step 5 Perform the following steps in this window e Make sure that the simulator resolution is ns default e Look in the Design Unit scroll box and select the configuration named test_adder_structural e Click Load to accept the settings Step 6 To open all of the VSIM windows enter the following command in the Main window at the VSIM prompt VSIM gt view ModelSim will open all the windows in the positions you left them in at the end of the last exercise if no one has run the simulator since then Step 7 To list the top level signals enter the command VSIM gt add list Step 8 To add top level signals to the Wave window enter the command VSIM gt add wave Step 9 To change the length of the default simulation run make this Main window menu selection Options gt Simulation The Simulation Options dialog box is displayed Getting Started with ModelSim EE Tutorial Using ModelSim EE 109 Debugging a VHDL design Change the Default
92. log design 139 Home page Model Technology s home page URL 16 Getting Started with ModelSim EE Index 169 ABCDEFGHIJKLMNOPORSTUVWXYZ I Installing ModelSim 18 Instantiation label 75 K Keyboard shortcuts List window 59 Keyboard shortcuts Wave window 59 94 155 L Library creation and mapping 107 List window change display radix 141 placing top level Verilog signals in 137 List window see also Windows 44 M Macros example 116 Main window see also Windows 35 Menus Dataflow window 43 List window 46 Process window 63 Signals window 65 Source window 71 Structure window 76 tearing off or pinning menus 30 Variables window 78 VSIM Main window 36 Wave window 82 ModelSim commands comments in commands 14 N Nets adding to the Wave and List windows 68 displaying in Dataflow window 42 displaying values in Signals window 64 forcing signal and net values 66 saving values as binary log file 68 viewing waveforms 79 Notepad windows text editing 40 P Process window see also Windows 62 Processes displayed in Dataflow window 42 values and pathnames in Variables window 77 Q quit VSIM command 106 145 R Radix specifying in List window 53 specifying in Signals window 67 Records changing values of 77 displaying values of 112 Register variables adding to the Wave and List windows 68 displaying values in Signals window 64 saving values as binary log file 68 viewing waveforms 79 run VSIM
93. low you to specify the number of regions instead of characters to display Snap Distance Specifies the distance the cursor needs to be placed from an item edge to jump to that edge a 0 specification turns off the snap The value displayed in the item value windowpane is updated to reflect the snap Adding HDL items in the Wave window Before adding items to the Wave window you may want to set the window display properties see Setting Wave window display properties p83 You can add items to the Wave window in several ways Adding items from the Signals window with drag and drop You can drag and drop items into the Wave window from the Process Signals or Structure window Select the items in the first window then drop them into the Wave window Depending on what you select all items or any portion of the design may be added See the Tree window action list p32 for information about making item selections 84 ModelSim EE Graphic Interface Getting Started with ModelSim EE Wave window Adding items from the Main window command line To add specific HDL items to the window enter separate the item names with a space add wave lt item_name gt lt item_name gt You can add all the items in the current region with this command add wave Or add all the items in the design with add wave r Adding items with a Wave window format file To use a Wave window format file you must first save a forma
94. m windows as indicated below Select an item in this window To update these windows Dataflow window p42 Process window p62 with a process selected in the center of the window Signals window p64 Source window p70 Structure window p74 Variables window p77 Process window p62 Dataflow window p42 Signals window p64 Structure window p74 Variables window p77 Signals window p64 Dataflow window p42 Structure window p74 Signals window p64 Source window p70 Finding names and searching for values Find HDL item names with the Edit gt Find menu selection in these windows List Process Signals Source Structure Variables and Wave windows e Search for HDL item values with the Edit gt Search menu selection in these windows List and Wave windows Getting Started with ModelSim EE ModelSim EE Graphic Interface 29 Window features You can also e Locate time markers in the List window with the Markers gt Goto menu selection Locate time cursors in the Wave window with the Cursor gt Goto menu selection In addition to the menu selections above the virtual event lt lt Find gt gt is defined for all windows The default binding is to lt Key F19 gt in most windows You can bind lt lt Find gt gt to other events with the Tcl Tk command event add For example event add lt lt Find gt gt lt Control
95. ment is subject to restrictions as set forth in subparagraphs a through d of the Commercial Computer Restricted Rights clause at FAR 2 227 19 when applicable or in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clauses in the NASA FAR Supplement Any provision of Model Technology documentation to the U S Government is with Limited Rights Contractor manufacturer is Model Technology Incorporated Suite 150 8905 SW Nimbus Avenue Beaverton Oregon 97008 USA Limited Warranty LIMITED WARRANTY MTI warrants that the SOFTWARE will perform substantially in accordance with the accompanying written materials for a period of 30 days from the date of receipt Any implied warranties on the SOFTWARE are limited to 30 days Some states do not allow limitations on duration of an implied warranty so the above limitation may not apply to you CUSTOMER REMEDIES MTI s entire liability and your exclusive remedy shall be at MTT s option either a return of the price paid or b repair or replacement of the SOFTWARE that does not meet MTI s Limited Warranty and which is returned to MTI This Limited Warranty is void if failure of the SOFTWARE has resulted from accident abuse or misapplication Any replacement SOFTWARE will be warranted for the remainder of the original warranty period or 30 days whichever is longer NO OTHER WARRANTIES MTI disclaims all other warranties either express or implied including but not limi
96. move an item left mouse button click on an item then reselect it and drag to reposition 32 ModelSim EE Graphic Interface Getting Started with ModelSim EE Window features Finding items within tree windows You can open the find dialog box within all windows except the VSIM Main and Source windows by using this keyboard shortcut lt Control f gt Options within the Find dialog box allow you to search unique text string fields within the specific window See also e Finding items by name in the List window p56 e Finding HDL items in the Signals window p69 and e Finding items by name or value in the Wave window p89 Getting Started with ModelSim EE ModelSim EE Graphic Interface 33 Window overview Window overview Once you start a simulation whether invoked directly by a VSIM command from the UNIX command line or through the Startup dialog box nine windows become available for use during simulation These windows are VSIM Main window p35 The main window from which all subsequent VSIM windows are available Dataflow window p42 Lets you trace signals and nets through your design by showing related processes List window p44 Shows the simulation values of selected VHDL signals and Verilog nets and register variables in tabular format Process window p62 Displays a list of processes that are scheduled to run during the current simulation cycle Signals wind
97. n window provide the following information about the current simulation Field Description Now the current simulation time or a larger time unit if one can be used without a fractional remainder Delta the current simulation iteration number Getting Started with ModelSim EE ModelSim EE Graphic Interface 39 VSIM Main window Field Description Env name of the current environment item selected in the Structure window p74 Editing the command line the current source file and notepads The following mouse actions and special keystrokes can be used to edit commands in the entry region of the VSIM Main window They can also be used in editing the file displayed in the Source window p70 and all notepad windows enter the notepad command at the VSIM prompt to open the notepad editor The mouse operations are of Motif origin and the special keystrokes are of EMACS origin Mouse action Result lt left button click gt move the insertion cursor lt left button press gt drag select lt shift left button press gt extend selection lt left button double click gt select word lt left button double click gt drag select word word lt control left button click gt move insertion cursor without changing the selection lt middle button click gt paste clipboard lt middle button press
98. ng time is held static Zoom Out Zooms out by a factor of two decreasing the resolution and increasing the visible range horizontally extending the view on the right The starting time is held static Zoom Last Restores the display to where it was before the last zoom operation e Zoom Range Brings up a dialog box that allows you to enter the beginning and ending times for a range of time units to be displayed Zooming with the mouse To zoom with the mouse position the mouse cursor to the left side of the desired zoom interval press the middle mouse button and while continuing to press drag to the right and then release at the right side of the desired zoom interval Zooming keyboard shortcuts See Wave window keyboard shortcuts p155 for a complete list of Wave window keyboard shortcuts Zooming with VSIM commands The wave tree zoomfull provides the same function as the Zoom gt Zoom Full menu selection and the wave tree zoomrange provides the same function as the Zoom gt Zoom Range menu selection 154 Tutorial Using ModelSim EE Getting Started with ModelSim EE Using the Wave window Use this syntax with the wave tree zoomrange command Syntax wave tree zoomrange fl f2 Arguments fl f2 Sets the waveform display to zoom from time f1 to f2 where f1 and f2 are floating point numbers Wave window keyboard shortcuts Using the following keys when the mouse cursor is within the Wave
99. nstallation procedure Step 1 ModelSim can be installed in any directory These instructions assume that you are installing it in the usr directory You can change to the desired installation directory by entering one of the following commands cd usr or cd lt pathname gt Step 2 For CD ROM installation extract the file for your platform plus base tar and docs tar with this syntax we assume that the lt CD ROM gt is mounted tar xf lt CD ROM gt WORKSTATION install lt CD ROM filename gt For tape installation extract the files using the tape install command for your platform Platform lt CD ROM filename gt Tape install commands All platforms base tar extract for all platforms Sun OS 4 Solaris 1 x sun4 tar tar xf dev rstO Sun OS 5 Solaris 2 x sunos5 tar tar xf dev rmt 0 HP hp700 tar tar xf dev rmt Om IBM rs6000 tar tar xf dev lt cartridge_drive gt All platforms docs tar manuals in pdf format This creates a top level directory named modeltech Step 3 Add the pathname of the ModelSim executable directory to your search path usr modeltech sun4 usr modeltech sunos5 usr modeltech hp700 usr modeltech rs6000 Getting Started with ModelSim EE ModelSim EE Installation 19 Installation procedure You can also use the veo command within your shell script to return the platform directory e for csh set path path lt install_dir
100. odelSim EE Graphic Interface Chapter contents Window features 2 2 8 2 228 Window overview ee BE VSIM Main window ee BS Dataflow window ea 4D Listwindow s s m a wo s s e we w 44 Process window ee 2 Signals window 2 eee 4 Source window 2 ee ee TO Structure window 2 eee a a TA Variables window aa a TT Wave window a aaa LTD This chapter describes the graphic interface available while operating V SIM the ModelSim simulator ModelSim s graphic interface is designed to provide consistency throughout all workstation environments Your workstation interface provides the window management frame ModelSim controls all internal window features including menus buttons and scroll bars Because its graphic interface is based on Tcl Tk ModelSim allows you to create your own simulation environment Easily accessible preference variables and configuration commands give you control over the use and placement of windows menus menu options and buttons Getting Started with ModelSim EE ModelSim EE Graphic Interface 27 Window features Command line simulation Although this chapter deals primarily with the use of ModelSim via its graphic interface VSIM also provides a set of commands that can be used to run your simulations from the command line These commands are described in the Mod
101. ome page http www globetrotter com manual htm Step 7 You may delete the executables you don t want for example cd usr modeltech rm rf hp700 Getting Started with ModelSim EE ModelSim EE Installation 21 Installed directories and files Installed directories and files A typical installation would have the files and structure illustrated below For details on platform subdirectories hp700 rs6000 sun4 and sun5 see Platform specific directories p25 Directory Files amp subdirectories Description lt install directory gt convert tcl modelsim ini README translates 4 6 do files into 5 1 modeltech README HTML rebuild_libs csh do files modelsim rebuild_libs sh vsim ps initialization file modelsim readme files in text and HTML formats recreates all libraries from the source files for csh and sh shells Postscript header file arithmetic std_logic_arith Mentor Graphics specific arithmetic packages bin qhcvt dumplog64 hm_entity ghdel platform independent ghdir qhlib qhmake qhmap ghsim executables and QuickHDL qvhcom qvicom sm_entity vcom vdel mappings to ModelSim vdir vlib vlog vmake vmap vsim executables docs technotes verilog HTML general ModelSim technotes ee_get lt version gt pdf Verilog specific technotes ee_man lt version gt pdf sdk_um pdf HTML versions of the Tcl Tk man pages Getting Started with ModelSim tutorial in PDF forma
102. ompile the Verilog files with this command vlog cache v memory v proc v Step 3 Depending on the design the compile order of VHDL files can be very specific In the case of this lesson the file top vhd must be compiled last Compile the VHDL files with this command vcom util vhd set vhd top vhd 146 Tutorial Using ModelSim EE Getting Started with ModelSim EE Mixed VHDL Verilog simulation Step 4 Invoke vsim with the name of the top level design vsim top Step 5 At the VSIM prompt type VSIM gt view Step 6 This time you will use the VSIM command line to add all of the HDL items in the region to the List and Wave windows VSIM gt add list VSIM gt add wave Step 7 Take a look at the Structure window Notice the hierarchical mixture of VHDL and Verilog in the design VHDL levels are indicated by a square prefix while Verilog levels are indicated by a circle prefix Try expanding and contracting the structure layers You ll find Verilog modules have been instantiated by VHDL architectures and similar instantiations of VHDL items by Verilog Getting Started with ModelSim EE Tutorial Using ModelSim EE 147 Mixed VHDL Verilog simulation Let s take another look at the design Step 8 In the Structure window click on the Verilog module c cache The source code for the Verilog module is now shown in the Source window Step 9 We ll use Model Sim
103. on Run All run simulation until you stop it Continue continue the simulation Run Next run to the next event time Step single step the simulator Step Over execute without single stepping through a subprogram call Macro menu Execute Macro allows you to browse for and execute a do file macro Macro Helper invokes the Macro Helper tool Tcl Debugger invokes the Tcl debugger TDebug Getting Started with ModelSim EE ModelSim EE Graphic Interface 37 VSIM Main window Options menu Simulation returns the Simulation Options dialog box options include default radix default force type default run length iteration limit warning suppression and break on assertion specification Edit Preferences returns the Preferences dialog box color preferences can be set for window background text and graphic items i e waves in the Wave window Save Preferences Window menu save current ModelSim settings to a Tcl preference file lt window_name gt lists the currently open windows select a window name to switch to or show that window if it is hidden when the source window is available the source file name is also indicated open additional windows from the View menu p36 Icon Children iconify all windows except the Main window Icon All iconify all windows Deicon All restores all windows to their most current open size and p
104. or closest to the mouse position is selected and then moved to the mouse position Another way to position multiple cursors is to use the mouse in the time box tracks at the bottom of the display Clicking anywhere in a track selects that cursor and brings it to the mouse position The cursors are designed to snap to the closest wave edge to the left on the waveform that the mouse pointer is positioned over You can control the snap distance from Wave category in the dialog box available from the Wave window Properties gt Display menu selection You can position a cursor without snapping by dragging in the area below the waveforms Zooming changing the waveform display range Zooming lets you change the simulation range in the windowpane display You can zoom with either the Zoom menu mouse keyboard or VSIM commands Edit Cursor Zoom Prop Window drag from left to right with the middle mouse button to zoom Getting Started with ModelSim EE Tutorial Using ModelSim EE 153 Using the Wave window Using the Zoom menu You can use the Wave window menu bar or call up a Zoom menu window with the right mouse button in the right windowpane The menu options include e Zoom Full Redraws the display to show the entire simulation from time 0 to the current simulation time Zoom In Zooms in by a factor of two increasing the resolution and decreasing the visible range horizontally cropping the view on the right The starti
105. osition Help menu About ModelSim display ModelSim application information Release Notes view current release notes Information about Help view the readme file pertaining to ModelSim s online documentation Getting Started with ModelSim open and read Getting Started Acrobat pdf file PDF files can be read with a free Adode Acrobat reader available through www adobe com ModelSim EE PLUS Reference Manual open and read the EE Reference Manual Acrobat pdf file pdf files can be read with a free Adode Acrobat reader available through www adobe com Tcl Man Pages open and read Tcl 7 6 Tk 4 2 manual in HTML format uses a Tcl Tk HTML viewer Technotes select a technical note to view from the drop down list 38 ModelSim EE Graphic Interface Getting Started with ModelSim EE VSIM Main window The Main window tool bar See re el Pe In addition to the functions accessed through the menu bar you can use the Main window tool bar for several frequently used run commands Button Menu equivalent VSIM command equivalent Run Run gt Run lt default_run_length gt run Cont Run gt Cont run continue Step Run gt Step step Step Over Run gt Step Over step over Break none a You can execute a break from the parent UNIX window with lt control c gt The Main window status bar Fields at the bottom of the VSIM Mai
106. otice that the values change in the VSIM Variables window You can keep clicking Step if you wish Eile Library View Run Macro Options VSIM 13 gt force clk 1 50 0 100 repeat 100 VSIM 14 gt run 100 ns VSIM 15 gt run all Break key hit VSIM 16 gt run continue Break at counter vhd line 18 SIM 17 gt 104 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic VHDL simulation Now let s take a look at the simulation in the Wave window In the Wave window you can use cursors to e probe for values Signal values update whenever you move the cursor find signal transition times Click on a signal edge the cursor displays the time e measure time intervals Intervals are measured and displayed between two cursors Add Delete or Goto cursors from the Cursor menu File Edit Mlevicnig Zoom Prop Window e J1010100 JO1010101 01010110 Add Cursor Delete Cursor Goto P 1 0 1 0 100 ns Click drag with the Selected cursor is bold Interval measurement center mouse button to zoom the display Getting Started with ModelSim EE Tutorial Using ModelSim EE 105 Basic VHDL simulation Step 16 Experiment with using the cursors scrolling and zooming see page 155 for Wave window shortcuts Step 17 When you re done experimenting quit the simulator by entering the command VSIM gt quit force This command exits VSIM without saving data
107. our local Model Technology distributor for information about training classes Sections in this guide In addition to this introduction you will find the following major sections in this guide 2 ModelSim EE Installation p17 3 ModelSim EE Graphic Interface p27 4 Tutorial Using ModelSim EE p97 A Help Updates and Licensing p157 B Resources p161 Getting Started with ModelSim EE Introduction 13 Text conventions Text conventions Text conventions used in this manual include italic text provides emphasis and sets off file and path names bold text indicates commands command options and menu choices as well as package and library logical names monospaced type monospace type is used for program and command examples The right angle gt is used to connect menu choices when traversing menus as in File gt Save HDL and HDL item defined HDL refers to either VHDL or Verilog when a specific language reference is not needed Depending on the context HDL item can refer to any of the following e VHDL block statement component instantiation constant generate statement generic package signal or variable e Verilog function module instantiation named fork named begin net task or register variable Syntax conventions The syntax elements of ModelSim commands are signified as follows lt gt angled brackets surrounding a syntax item indicate a
108. ow p64 Shows the names and current values of VHDL signals and Verilog nets and register variables in the region currently selected in the Structure window Source window p70 Displays the HDL source code for the design Structure window p74 Displays the hierarchy of structural elements such as VHDL component instances packages blocks generate statements and Verilog model instances named blocks tasks and functions Variables window p77 Displays VHDL constants generics variables and Verilog register variables in the current process and their current values Wave window p79 Displays waveforms and current values for the VHDL signals and Verilog nets and register variables you have selected 34 ModelSim EE Graphic Interface Getting Started with ModelSim EE VSIM Main window VSIM Main window The VSIM Main window is pictured below as it appears when VSIM is first invoked from the UNIX command line Note that your workstation graphic interface provides the window management frame only ModelSim handles all internal window features including menus buttons and scroll bars Eile Library Miew Run Macro Options Window rs ee ey Loading home prod release S 1a modeltech hp700 ieee std_logic_11 Loading home prod release S 1a modeltech hp700 verilog vl_types Loading work top only Loading work proc Loading work cache Loading work std_logic_util body Loading work ca
109. ow 39 Tracing HDL items with the Dataflow window 43 Tree windows searching in 150 VHDL and Verilog items in 31 viewing the design hierarchy 32 Triggering changing in List window 114 y Values of HDL items 72 Variables window see also Windows 77 Variables HDL changing value of with the GUI 77 Verilog interface checking between design units 136 source code viewing 70 viewing design in Structure and Source windows 147 Verilog simulation 135 VHDL source code viewing 70 Getting Started with ModelSim EE Index 171 ABCDEFGHIJKLMNOPORSTUVWXYZ VHDL simulation 99 Viewing design hierarchy 31 W Wave window cursors 144 placing top level Verilog signals in 137 Wave window see also Windows 79 Windows finding HDL item names 29 150 opening multiple copies 30 opening with the GUI 36 searching for HDL item values 29 150 Dataflow window 42 tracing signals and nets 43 iconify windows 38 List window 44 adding HDL items 50 adding signals with a log file 68 examining simulation results 55 formatting HDL items 52 locating time markers 29 150 saving to a file 60 setting display properties 47 Main window 35 status bar 39 text editing 40 time and delta display 39 tool bar 39 Process window 62 displaying active processes 62 specifying next process to be executed 62 viewing processing in the region 62 Signals window 64 VHDL and Verilog items viewed in 64 Source window 70 text editing 40 viewing HDL source code 70
110. ox and Verilog items are indicated by a circle You can expand and contract the display to view the elements by clicking on the boxes or circles at the left of the Window The first line of the Structure window indicates the top level design unit being simulated 74 ModelSim EE Graphic Interface Getting Started with ModelSim EE Structure window Instance name components in the Structure window An instance name displayed in the Structure window consists of the following parts s0 cache_set only instantiation label entity or module architecture where e instantiation label Indicates the label assigned to the component or module instance in the instantiation statement e entity or module Indicates the name of the entity or module that has been instantiated e architecture Indicates the name of the architecture associated with the entity not present for Verilog When you select a region in the Structure window it becomes the current region and is highlighted the Source window p70 and Signals window p64 change dynamically to reflect the information for that region This feature provides a useful method for finding the source code for a selected region because the system keeps track of the pathname where the source is located and displays it automatically without the need for you to provide the pathname Also when you select a region in the Structure window the Process window p62 is updated if In Re
111. p Updates and Licensing Getting Started with ModelSim EE ModelSim EE Licensing After the product description is the maintenance expiration date in the form yyyy mmm This date dictates which ModelSim software version can be run Any software built before or on that date will run nothing built afterward will run Next on the line is the stop date with the form dd mmm yyyy It is six months later than the maintenance expiration date No software regardless of its build date runs after the stop date Next is the number of licenses followed by the auth code itself and lastly a checksum that can be used to determine if someone made a mistake transcribing a license file Maintenance Renewals When maintenance is renewed Model Technology will send a new authorization code that incorporates the new maintenance expiration date If maintenance is not renewed the authorization code will still permit the use of any version of the software built before the maintenance expired until the stop date is reached Server Changes Model Technology charges a fee for server changes The fees are based on the number of license files required and can be waived if server changes are made as licenses expire Contact sales model com for more information ModelSim EE Licenses from Mentor Graphics ModelSim is completely compatible with licenses issued by Mentor Graphics Getting Started with ModelSim EE Help Updates and Licensing 159 ModelS
112. ption in the List Signals window specifies that a change in the value of the selected item does not affect the List window The trigger specification affects the trigger property of the selected item See also Setting List window display properties p47 54 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window Examining simulation results with the List window Because you can use the Main window View menu p36 to create a second List window you can reformat another List window after the simulation run if you decide a different format would reveal the information you re after Compare the two illustrations Edit Markers Prop Window Eile nsy delta ftesthbench a testbench by testbe UUUUUUUU UUUUUUUU 00000000 00000001 00000000 00000001 00000000 00000001 Eile Edit Markers Prop 00000000 00000001 00000000 00000001 00000001 00000001 symbolic item format item change triggers a new line the divider bar separates resolution and delta from values decimal and symbolic formats 100ns strobe triggers a new line In the first List window the HDL items are formatted as symbolic and use an item change to trigger a line the field width was changed to accommodate the default label width The window divider maintains the time and delta in the left pane signals in the right pane may be viewed by scrolling For the second listing the specification for triggering was changed to a 100 n
113. r new directory with this command cp r lt install_dir gt modeltech examples tcl_getstart Step 2 Change to the tcl_getstart vhdl directory cd tcl_getstart vhdl and create a work library vlib work Step 3 Compile the VHDL example files with this command veom traffic vhd queue vhd tbh_traffic vhd and return to the tcl_getstart directory CA ok Step 4 All Tcl examples are run from the ModelSim prompt after invoking VSIM To arrive at the ModelSim prompt simply invoke VSIM and dismiss the Load Design dialog box by clicking Cancel don t use Exit or you will quit ModelSim Step 5 Begin the Tcl examples with this command at the ModelSim prompt source examples tcl You re now ready to run the examples 126 Tutorial Using ModelSim EE Getting Started with ModelSim EE Tel Tk and ModelSim Example 1 create a hello world button widget Before you begin the examples make sure you have completed Preparing for the Tcl Tk examples p126 steps 1 through 3 In this example you will study a hello world button that prints a message when pressed Step 1 Invoke VSIM from within the tcl_getstart directory and Cancel the resulting Load Design dialog box This will cause VSIM to use the proper modelsim ini and modelsim tcl files Step 2 Begin the this example with the source command at the ModelSim prompt source examples tcl The Tcl source command reads the examples tcl file and defines the
114. ransition for the selected signal Markers menu Add Marker add a time marker at the top of the listing page Delete Marker delete the selected marker from the listing Goto choose the time marker to go to from a list of current markers Prop menu Display Props set display properties for all items in the window delta settings trigger on selection strobe period and label size Signal Props set label radix trigger on off and field width for the selected item Window menu lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden Setting List window display properties Before you add items to the List window you can set the window s display properties To change when and how a signal is displayed in the List window make this selection from the List window menu bar Prop gt Display Props The resulting Modify Display Properties dialog box has the following options Getting Started with ModelSim EE ModelSim EE Graphic Interface 47 List window Trigger settings page The Triggers page controls the triggering for the display of new lines in the List window You can specify whether an HDL item trigger or a strobe trigger is used to determine when the List window displays a new line If you choose Trigger on Signals then you can choose between collapsed or expanded delta displays You can also choose a combination of signal or strobe triggers To use g
115. rebuilding VITAL version 2 2b library vhdl_src vital95 prmtvs_b vhd prmtvs_p vhd timing_b vhd timing_p vhd sources for rebuilding VITAL version 95 library 24 ModelSim EE Installation Getting Started with ModelSim EE Platform specific directories Platform specific directories The four platform specific directories within the modeltech directory hp700 rs6000 sun4 and sun5 include the same files except as noted below Directory Files amp subdirectories Description lt platform gt START_SERVER license manager script libsm sl libswiftpli sl SmartModel support libraries Imcksum Imdown Imgrd license manager executables Imhostid Imremove Imreread Imstat Imswitchr modeltech options license manager executable sm_entity ModelSim tool for use with LMG models tssi2mti ModelSim tool for use with SEF files vcom ModelSim VHDL compiler vdel vdir vmake vmap ModelSim library management tools vlog ModelSim Verilog compiler vish Tcl TK user interface vlm simulation license manager vgencomp ModelSim tool for use with Verilog modules vsim ModelSim simulator rs6000 mti_exports list of foreign interface routines exported from mti sun4 vsim swift ModelSim simulator for use with LMG models Getting Started with ModelSim EE ModelSim EE Installation 25 26 ModelSim EE Installation Getting Started with ModelSim EE 3 M
116. references Tcl Tk man pages http www elf org tcltk man html contents htm SunScript Tcl information http sunscript sun com Open Verilog International http www ovi org Getting Started with ModelSim EE Resources 167 168 Resources Getting Started with ModelSim EE Index ABCDEFGHIJIKLMNOPORSTUVWXYZ A Assertion errors 110 B Breakpoints continuing simulation after 104 deleting 70 setting 70 viewing 70 C Comment characters in VSIM commands 14 Compile the order of Verilog modules 136 Verilog 135 VHDL 100 Conventions text and command syntax 14 D Dataflow window see also Windows 42 Debugging a VHDL design 107 Delay specifying stimulus delay 67 Delta collapse deltas in the List window 48 Descriptions of HDL items 72 Design hierarchy viewing in Structure window 74 Design library creating 100 136 Design structure of a mixed VHDL Verilog design 147 of a Verilog design 139 Design units viewing hierarchy 31 E Editing in notepad windows 40 in the Main window 40 in the Source window 40 Email Model Technology s email address 16 Errors breaking on assertion 111 finding in VHDL design 111 viewing in Source window 112 F Finding a cursor in the Wave window 92 153 a marker in the List window 59 Finding names and searching for values in windows 29 150 H HDL items defined 14 Hierarchical design structure of a mixed VHDL Verilog design 147 of a Veri
117. rrently holds meetings twice a year in the spring and fall which are attended by several hundred delegates For information about VIUF meetings membership newsletters and bulletin board services contact Conference Management Services Getting Started with ModelSim EE Resources 163 Corporations amp Consultants Corporations amp Consultants Automata Publishing Company 1072 South Saratoga Sunnyvale Road BLDG A107 San Jose CA 95129 USA Phone 800 8 VIPER or 408 255 0705 fax 408 253 7916 email info apco com PCI VHDL simulation models Contact Mona Singh CAST Computer Aided Software Technologies Inc 24 White Birch Drive Pomona NY 10970 USA Phone 914 354 4945 Fax 914 354 0325 email info cast inc com web http www cast inc com VHDL services including model development FPGA and ASIC design kits training simulation consulting Contact Newton Abdalla Comit Systems Inc 1250 Oakmead Parkway Suite 210 Sunnyvale CA 94088 USA Phone 408 988 2988 fax 408 988 2133 email bala comit com FPGA design VHDL modeling for embedded systems and related areas Contact Balachandran Sreekandath Daemon Modeling 834 SW Westwood Drive Portland OR 97201 USA Phone 503 977 0554 email 74051 3421 compuserve com Model development with emphasis on processor models Contact Daemon Anastas DP Consulting 9015 NE 139th Street Kirkland WA 98034 USA Phone 206 821 9124 Model development Contact Richard Pado
118. s strobe and the item radix for a b cin and sum is now decimal Getting Started with ModelSim EE ModelSim EE Graphic Interface 55 List window Finding items by name in the List window From the List window select Edit gt Find to bring up the Find dialog box Enter an item label and Find it by searching Forward right or Reverse left through the List window display The column number of the item found displays at the bottom of the dialog box Note that you can change an item s label see Setting List window display properties p47 Searching for item values in the List window Select an item in the List window From the List window menu bar select Edit gt Search to bring up the List Signal Search dialog box 56 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window The List Signal Search dialog box includes these options Signal Name lt item_label gt This indicates the item currently selected in the List window the subject of the search Search Options Ignore Glitches Ignore zero width glitches in VHDL signals and Verilog nets e Search Options Reverse Direction Select to search the list from bottom to top Deselect to search from top to bottom Search Options Search for Signal Value Reveals the Search Value field search for the value specified in the Search Value field the value must be formatted in the same radix as the display If no value is specified
119. s will not restart during the current simulation run If you select a Ready process it will be executed next by the simulator When you click on a process in the Process window the following windows are updated Window updated Result Structure window p74 shows the region in which the process is located Variables window p77 shows the VHDL variables and Verilog register variables in the process Source window p70 shows the associated source code 62 ModelSim EE Graphic Interface Getting Started with ModelSim EE Process window Window updated Result Dataflow window p42 shows the process the signals and nets the process reads and the signals and nets driven by the process The Process window menu bar The following menu commands and button options are available from the Process window menu bar File menu Save As save the process tree to a text file viewable with the ModelSim notepad Environment Follow Environment update the window based on the selection in the Structure window p74 Fix Environment maintain the current view do not update Close close this copy of the Process window you can create a new window with View gt New from the The VSIM Main window menu bar p36 Edit menu Editing options basic editing options include Copy Select All and Unselect All Sort sort the process list in either ascending de
120. scending or declaration order Find find specified text string within the structure tree choose the Status ready wait or done or Process label to search and the search direction forward or reverse Window menu lt VSIM_window gt switch to the selected open lt VSIM_window gt or show if hidden Active In Region toggle button Active Displays all the processes that are scheduled to run during the current simulation cycle In Region Displays any processes that exist in the region that is selected in the Structure window Getting Started with ModelSim EE ModelSim EE Graphic Interface 63 Signals window Signals window The Signals window shows the names and values of HDL items in the current region which is selected in the Structure window Items may be sorted in ascending descending or declaration order Eile Edit View Window HDL items viewed within the Signals window The following HDL items for VHDL and Verilog are viewable within the Signals window VHDL items Verilog items signals nets register variables and named events The names of any VHDL composite types arrays and record types are shown in a hierarchical fashion Hierarchy also applies to Verilog nets and vector memories Verilog vector registers do not have hierarchy because they are not internally represented as arrays Hierarchy is indicated in typical ModelSim fashion
121. search is based on these options multiple Search Options may be selected e Search Options Ignore Glitches Ignore zero width glitches in VHDL signals and Verilog nets e Search Options Reverse Direction Search the list from bottom to top e Search Options Search for Signal Value Activates the Search Value field search for the value specified in the Search Value field otherwise just look for transitions e Search Options Search for Expression Activates the Search Expression field and the Use Expression Builder button searches for the expression specified in the Search Expression field evaluating to a boolean true The expression may involve more than one signal but is limited to signals logged in the List window Expressions may include constants variables and macros If no expression is specified the search will give an error See the ModelSim EE PLUS Reference Manual for more information on expression syntax and the use of the Expression Builder Getting Started with ModelSim EE Tutorial Using ModelSim EE 151 Using the Wave window e Search Occurrences You can search for the n th transition or the n th match on value Search Occurrences indicates the number of transitions or matches for which to search e Search Value Valid only if Use signal value is selected specifies the search value must be formatted in the same radix as displayed The result of your search is indicated at the bottom of the dialog bo
122. station or host identification number and the equipment served in machine readable form only as allowed by the authorization code provided to you by MTI or its agents All authorized systems must be used within the country for which the systems were sold Workstation licenses must be located at a single site i e within a one kilometer radius and identified in writing to MTI The restriction to identified products does not apply to PC products licensed by a hardware security key and such PC products may be relocated within the country for which sold 2 COPYRIGHT The SOFTWARE is owned by MTI or its licensors and is protected by United States copyright laws and international treaty provisions Therefore you must treat the SOFTWARE like any other copyrighted material except that you may either a make one copy of the SOFTWARE solely for backup or archival purposes or b transfer the SOFTWARE to a single hard disk provided you keep the original solely for backup or archival purposes You may not copy the written materials accompanying the SOFTWARE 3 USE OF SOFTWARE The SOFTWARE is licensed to you for internal use only You shall not conduct benchmarks or other evaluations of the SOFTWARE without the advance written consent of an authorized representative of MTI You shall not sub license assign or otherwise transfer the license granted or the rights under it without the prior written consent of MTI or its applicable licensor You shall keep
123. t EE PLUS reeference manual in PDF format MGC standard developer s kit manual in PDF format examples various example simulation models testbenches macros and utilities 22 ModelSim EE Installation Getting Started with ModelSim EE Installed directories and files Directory Files amp subdirectories Description examples foreign various example file directory for foreign interface examples mixedhdl various example file directory for mixed VHDL Verilog design examples tcl_getstart various example files for Tcl Tk tutorial ieee math_real math_complex numeric_bit numeric_extra numeric_signed numeric_std numeric_unsigned std_logic_1164 std_logic_1164_extensions std_logic_arith std_logic_misc std_logic_signed std_logic_textio std_logic_unsigned vital_primitives vital_timing library for accelerated IEEE and Synopsys arithmetic packages ieeepure std_logic_1164 vital_primitives vital_timing standard VHDL IEEE library include acc_user h acc_vhdl h mti h tcl h veriuser h include files for use with Verilog PLI VHDL foreign interface and TCL mgc_portable qsim_logic qsim_relations qsim_tc Mentor Graphics QuickSim compatible logic set std_developerskit std_iopak std_mempak std_regpak std_simflags std_timing libraries for MGC standard developer s kit synopsys arithmetic attributes types accelerate
124. t after the assertion Step 14 If you turn to the Variables window now you can see that i 6 This indicates that the simulation stopped in the sixth iteration of the test pattern s loop Step 15 Expand the variable named test_patterns by clicking the You may need to resize the window for a better view Step 16 Also expand the sixth record in the array that is test_patterns 6 by clicking the The Variables window should be similar to the one below Edit View Window 10000011 11111100 0 i The assertion shows that the signal sum does not equal the sum field in test_patterns 6 Note that the sum of the inputs a b and cin should be equal to the output sum But there is an error in the test vectors To correct this error you need to restart the simulation and modify the initial value of the test vectors 112 Tutorial Using ModelSim EE Getting Started with ModelSim EE Debugging a VHDL design Step 17 In the main VSIM window type VSIM gt restart f The f option causes VSIM to restart without popping up the confirmation dialog Step 18 In the Process window select the test to add variables to the Variables window Step 19 In the Variables window expand test_pattern 6 again Then highlight the sum record by clicking on the variable name not the box before the name and then use the Edit gt Change menu selection testbench testtest_patterns 6 sum 00000111 cose em
125. t file for the design you are simulating e add the items you want in the Wave window with any other method shown above e edit and format the items see Editing and formatting HDL items in the Wave window p86 to create the view you want save the format to a file with the Wave window menu selection File gt Save Format To use the format file start with a blank Wave window and run the do file in one of two ways use the do command on the command line do lt my_wave_format gt e select File gt Load Format from the Wave window menu bar Use Edit gt Select All and Edit gt Delete to remove the items from the current Wave window use the delete command with the wave option or create a new blank Wave window with the View gt New gt Wave selection from the VSIM Main window p35 Note Wave window format files are design specific use them only with the design you were simulating when they were created Getting Started with ModelSim EE ModelSim EE Graphic Interface 85 Wave window Editing and formatting HDL items in the Wave window Once you have the HDL items you want in the Wave window you can edit and format the list in the name value pane to create the view you find most useful See also Adding HDL items in the Wave window p84 To edit an item Select the item s label in the left name value windowpane or its waveform in the right windowpane Move copy or remove the item by selecting commands
126. t selection from the VSIM Main window p35 You may find it useful to have two differently formatted windows open at the same time see Examining simulation results with the List window p55 Note List window format files are design specific use them only with the design you were simulating when they were created If you try to the wrong format file ModelSim will advise you of the HDL items it expects to find Editing and formatting HDL items in the List window Once you have the HDL items you want in the List window you can edit and format the list to create the view you find most useful See also Adding HDL items to the List window p50 To edit an item Select the item s label at the top of the List window or one of its values from the listing Move copy or remove the item by selecting commands from the List window Edit menu p46 menu You can also click drag to move items within the window e to select several contiguous items click drag to select additional items to the right or the left of the original selection e to select several items randomly Control click to add or subtract from the selected group e to move the selected items re click on one of the selected items and drag to the new location 52 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window To format an item Select the item s label at the top of the List window or one of its values from the listing then use
127. ted to implied warranties of merchantability and fitness for a particular purpose with respect to the SOFTWARE and the accompanying written materials This limited watranty gives you specific legal rights You may have others which vary from state to state NO LIABILITY FOR CONSEQUENTIAL DAMAGES In no event shall MTI or its suppliers be liable for any damages whatsoever including without limitation damages for loss of business profits business interruption loss of business information or other pecuniary loss arising out of the use of or inability to use these MTI products even if MTI has been advised of the possibility of such damages Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages the above limitation may not apply to you Table of Contents Software License Agreement Model Technology Software License Important Notice Limited Warranty 1 Introduction p11 Software versions ModelSim s graphic interface Standards supported Assumptions Sections in this guide Text conventions HDL and HDL item defined Syntax conventions Where to find our documentation Download a free PDF reader with Semi Comments 2 ModelSim EE Installation p17 System requirements for ModelSim EE Installation procedure Installed directories and files Platform specific directories 3 ModelSim EE Graphic Interface p27 Command line simulat
128. tep 12 Select the Break button on the Main window tool bar The arrow points to the next HDL statement to be executed Next you will set a breakpoint in the function on line 18 Step 13 Move the pointer to the VSIM Source window Using the vertical scroll bar scroll until line 18 is visible Click at or near line number 18 to set the breakpoint You should see a dot next to the line number where the breakpoint is set This breakpoint can be toggled on and off by clicking it Getting Started with ModelSim EE Tutorial Using ModelSim EE 103 Basic VHDL simulation File Edit Object Options Window constant tpd_clk_to_count time function increment val bit_vector return bit_vector is normalize the indexing alias input bit_vector val length downto 1 is val variable result bit_vector input range input variable carry bit 1 for i in input low to input high loop result i input i xor carry carry input i and carry exit when carry 0 end loop return result end increment Step 14 Select Continue in the Run menu in the main VSIM window to resume the run that you interrupted VSIM will hit the breakpoint as shown by an arrow in the VSIM Source window and by a message in the main VSIM window Also note that the parameters and variables within the function are displayed in the VSIM Variables window Step 15 Click Step to single step through the simulation N
129. the Prop gt Signal Props menu selection The resulting Modify Signal Properties dialog box allows you to set the item s label label width triggering and radix The Modify Signal Properties dialog box includes these options e Signal Shows the item you selected with the mouse e Label Allows you to specify the label that is to appear at the top of the List window column for the specified item e Radix Allows you to specify the radix base in which the item value is expressed The default radix is symbolic which means that for an enumerated type the List window lists the actual values of the enumerated type of that item For the other radixes binary octal decimal unsigned hexadecimal or ASCII the item value is converted to an appropriate representation in that radix In the system Getting Started with ModelSim EE ModelSim EE Graphic Interface 53 List window initialization file modelsim tcl you can specify the list translation rules for arrays of enumerated types for binary octal decimal unsigned decimal or hexadecimal item values in the design unit e Width Allows you to specify the desired width of the column used to list the item value The default is an approximation of the width of the current value Trigger Triggers line Specifies that a change in the value of the selected item causes a new line to be displayed in the List window Trigger Does not trigger line Selecting this o
130. tion The default library is work and the default resolution is 1 ns default Step 6 Select Design Unit test_counter and click Load to accept these settings Step 7 Bring up the Signals List and Wave windows by entering the following line at the VSIM prompt within the Main window VSIM gt view signals list wave Step 8 To list the top level signals move the pointer to the Signals window and make this View menu selection View gt List gt Signals in Region Getting Started with ModelSim EE Tutorial Using ModelSim EE 137 Basic Verilog simulation Eile Edit View Window Step 9 Now let s add signals to the Wave window with ModelSim s drag and drop feature In the Signals window Control click on the clk rst and count signals to make a group selection Click on the group one more time and drag it either pane of the Wave window Eile Edit View Window File Edit Cursor Zoom Prop Window rst x 138 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic Verilog simulation HDL items can also be copied from one window to another or within the Wave and List windows with the Edit gt Copy and Edit gt Paste menu selections You can also delete selected items with the Edit gt Delete selection Step 10 Next open the Structure and Source windows From the Main window make these menu selections View gt Structure and View gt Source Step 11 Rearrange the windows to giv
131. ue length widget is displayed you don t need to re draw it Step 2 The East West widget for controlling the East West queue inter arrival time is provided You ll edit the source code to add controls for the North South direction Use this command notepad controls tcl You can cut paste and modify the East West widget to control the North South queue inter arrival time You can also remove the comments in the code to make this change Similarly add the North South widget for controlling the length of the lights The East West widget for light control is provided You can remove the comments in the code to make this change as well 132 Tutorial Using ModelSim EE Getting Started with ModelSim EE Tel Tk and ModelSim These control widgets are implemented using the Tk scale widgets enclosed in a frame When the value of the scale widget changes it calls the command specified with the command option on each scale See the set_time_variable command Step 3 After you have added your North South widgets run your program with this command example controls tcl draw_controls Step 4 Use the controls you have added to experiment with the parameters of the simulation and observe the results Contrast this experience with traditional methods for exploring the parameter space Example 7 draw a state machine that represents the simulation In this final example you will draw a state machine representing the sim
132. ulation and connect it to the state signal inside the traffic light controller Each transition that the controller makes is displayed as it happens Step 1 Run the state machine with this command xample state machine tcl draw_state_machine Let s make some changes to the light colors and transition arrows Step 2 Open the source file with this command notepad state machine tcl Note the Example 7 part 1 comments in the file Change both_red state coordinates as indicated Getting Started with ModelSim EE Tutorial Using ModelSim EE 133 Tcl Tk and ModelSim Step 3 Note the Example 7 part 2 comments in the file Change the transition arrow coordinates as indicated Step 4 Note the Example 7 part 3 comments in the file Change the active color from black to purple Step 5 When you re ready to run your program use this command xample state machine tcl draw_state_machine Notice the changes Try some additional changes if you wish This is the end of the Tcl Tk examples Continue to modify and test the examples if you wish you can recover the original files at any time in the tcl_getstart originals directory 134 Tutorial Using ModelSim EE Getting Started with ModelSim EE Basic Verilog simulation Basic Verilog simulation You must be using ModelSim EE PLUS or ModelSim EE VLOG for this lesson The goals for this lesson are e compile a Verilog design e examine the hier
133. ve displayed a row of data given the trigger on signals and strobe settings above On Duration The duration for gating to remain open after the last list row in which the expression evaluates to true expressed in x number of default timescale units Gating is level sensitive rather than edge triggered List window gating information is saved as configuration statements when the list format is saved The gating portion of a configuration statement might look like this ist tbl config usegating 1 ist tbl config gateduration 100 ist tbl config gateexpr lt expression gt Getting Started with ModelSim EE ModelSim EE Graphic Interface 49 List window Window Properties page The Window Properties page includes these options Label Full Name Display the full pathname of the item e Label Short Name Display the item name without the path Name Limit The maximum number of number of rows in the name pane Adding HDL items to the List window Before adding items to the List window you may want to set the window display properties see Setting List window display properties p47 You can add items to the List window in several ways 50 ModelSim EE Graphic Interface Getting Started with ModelSim EE List window Adding items with drag and drop You can drag and drop items into the List window from the Process Signals or Structure window Select the items in the first windo
134. w then drop them into the List window Depending on what you select all items or any portion of the design may be added See the Tree window action list p32 for information about making item selections Adding items from the Main window command line Invoke the add list command to add one or more individual items separate the names with a space add list lt item_name gt lt item_name gt You can add all the items in the current region with this command add list Or add all the items in the design with add list r Adding items with a List window format file To use a List window format file you must first save a format file for the design you are simulating e add the items you want in the List window with any other method shown above e edit and format the items see Editing and formatting HDL items in the List window p52 to create the view you want e save the format to a file with the List window menu selection File gt Save Format Getting Started with ModelSim EE ModelSim EE Graphic Interface 51 List window To use the format file start with a blank List window and run the do file in one of two ways e use the do command on the command line do lt my_list_format gt e select File gt Load Format from the List window menu bar Use Edit gt Select All and Edit gt Delete to remove the items from the current List window or create a new blank List window with the View gt New gt Lis
135. what happens on the standard output Push one of the buttons you will see an error dialog box You can solve this problem by modifying the images tcl file Step 4 To view the source file press the See Source Code button at the bottom of the image display or invoke notepad at the ModelSim prompt notepad images tcl You ll find that the pushme procedure is missing it s commented out in images tcl Remove the comments to return the function to your source 128 Tutorial Using ModelSim EE Getting Started with ModelSim EE Tel Tk and ModelSim Step 5 Once the pushme procedure is in place it will print its one parameter the object name to stdout After you have added the pushme procedure to your source you need to reload and rerun the tcl file with this command xample images tcl image_example Press all the buttons and notice the object names in the standard out Example 3 introduction of the traffic intersection widget This example introduces the traffic intersection widget we ll study the structure of the widget and see how it works The traffic intersection is the basis for the traffic light simulation The three following examples examples 4 5 and 6 will add more detail to the traffic intersection display In order to run any of the three following examples you need to have run this example first The intersection should always be displayed Once again make sure you have completed Preparing for
136. window will cause the indicated actions Key Action ilor zoom in o O or zoom out f or F zoom full lor L zoom last rorR zoom range lt arrow up gt scroll waveform display up lt arrow down gt scroll waveform display down lt arrow left gt scroll waveform display left lt arrow right gt scroll waveform display right lt page up gt scroll waveform display up by page lt page down gt scroll waveform display down by page lt tab gt searches forward right to the next transition on the selected signal Getting Started with ModelSim EE Tutorial Using ModelSim EE 155 Continuing with ModelSim for workstations Key Action lt shift tab gt searches backward left to the previous transition on the selected signal lt Control f gt opens the find dialog box search within the specified field in the wave name pane for text strings Continuing with ModelSim for workstations More information on ModelSim commands functions and techniques for use can be found in the following locations e ModelSim EE PLUS Reference Manual an Adobe Acrobat pdf version of our reference manual is available in the lt install_dir gt modeltech docs directory after installation e Tips and Techniques appendix of the reference manual technote text files installed with ModelSim located in the lt install_dir gt modelt
137. with plus expandable minus expanded and blank single level boxes See Tree window hierarchical view p31 for more information 64 ModelSim EE Graphic Interface Getting Started with ModelSim EE Signals window The Signals window menu bar The following menu commands are available from the Signals window menu bar File menu Save As save the signals tree to a text file viewable with the ModelSim notepad Environment Follow Environment update the window based on the selection in the Structure window p74 Fix Environment maintain the current view do not update Close close this copy of the Signals window you can create a new window with Edit menu View gt New from the The VSIM Main window menu bar p36 Editing options basic editing options include Copy then paste to Wave or List window Select All and Unselect All Sort sort the signals tree in either ascending descending or declaration order Force apply stimulus to the specified Signal Name specify Value Kind Freeze Drive Deposit Delay and Repeat Noforce removes the effect of any active force command on the selected HDL item Find find specified text string within the Signals window choose the Name or Value field to search and the search direction forward or reverse View menu Wave List Log place the Selected Signals Signals in Region or Signals in Design in the Wave window p
138. x Found 2 matches last one at time 2265 delta 0 in the illustration above Using the Wave window This practice involves the use of Wave window time cursors zooming the waveform display and Wave window keyboard shortcuts Any of the previous lesson simulations may be used with this practice Using time cursors in the Wave window When the Wave window is first drawn there is one cursor located at time zero Clicking anywhere in the waveform display brings that cursor to the mouse location You can add additional cursors to the waveform pane with the Cursor gt Add Cursor menu selection The selected cursor is drawn as a solid line all other cursors are drawn with dotted lines Remove cursors by selecting them and choosing using the Cursor gt Delete Cursor menu selection Edit Cursor Zoom Window 152 Tutorial Using ModelSim EE Getting Started with ModelSim EE Using the Wave window Finding a cursor The cursor value on the Goto list corresponds to the simulation time of that cursor Choose a specific cursor view with Cursor gt Goto menu selection Making cursor measurements Each cursor is displayed with a time box showing the precise simulation time at the bottom When you have more than one cursor each time box appears in a separate track at the bottom of the display VSIM also adds a delta measurement showing the time difference between the two cursor positions If you click in the waveform display the curs
139. your installation The ModelSim README file includes additional information for QuickHDL users Getting Started with ModelSim EE ModelSim EE Installation 17 System requirements for ModelSim EE System requirements for ModelSim EE SPARCstation IBM RISC 6000 HP 700 Operating system amp SunOS 4 1 amp AIX 3 2 5 amp OSF Motif HP UX 9 01 amp HP VUE3 0 interface OpenWindows 3 0 1 2 or OSF Motif 1 2 Solaris 2 4 amp OSF Motif 1 2 or OpenWindows 3 0 Memory 32 Mb minimum Storage hard disk with at least 35 Mb spare capacity Installation media 1 4 tape QIC 24 format CD ROM Installation procedure 4 mm DAT CD ROM Before you begin a new ModelSim FE installation make sure you have a ModelSim Authorization Certificate with the license dat file you need the file to run ModelSim If you don t have the certificate or the license file you can get one by email license model com or fax from Model Technology Be sure to include your workstation s identification in your fax or email Syntax Platform hostid SPARC etc lanscan HP 700 uname m RISC 6000 The commands used to install ModelSim are case sensitive so they must be entered exactly as shown in the following steps Note that neither the prompt nor the lt Return gt at the end of a line is shown in the examples 18 ModelSim EE Installation Getting Started with ModelSim EE I

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