Guide to using Mentor Graphics for 3BA4
Contents
1. in particular the sections on Saving A Cell and Saving A Cell Keep ing the Edit Reservation e Chapter 12 Full Custom Editing Operations The Mentor documentation can also be accessed directly from mentor idea shared pdfdocs although it can be tricky to identify docu ments by their filenames 3 2 1 Reporting Errors If you get error messages that you don t understand then email to Andrew ButterfieldOcs tcd ie with subject line starting 3BA4 ic error giving details of the problem and the last few lines of the transcript being generated by IC Station in the term window from which it was launched at the point in time when the error occurred 3 3 Editing Cells The main activity you will be doing is creating and editing layout Cells The following is a brief guide to doing this 3 3 1 Edit Reservations In order to edit a cell it is not sufficient to simply have it open in a window in the working area You must also reserve it for editing Often after saving a cell will cease to be so reserved In order to re reserve a cell for editing do M L File gt Cell gt Reserve gt Current Context 3 3 2 Working Layers and Process When entering shapes the manufacturing layer nDiff Poly Metall etc asso ciated with that shape is known as the working layer The available working layers and their appearance is determined by the Process information loaded with the Cell The process2. used for this course is users Public BAICT 3BA4 CMOS 3BA4 3 3 3 Shape Selection When a shape is selected it is usually highlighted in white You can select shapes by left clicking anywhere in the Cell window If you mouse is not over a shape then the nearest shape is selected If you keep left clicking more and more shapes get selected adding to what is called the selection set You can un select all shapes by pressing F2 You can also select shapes by left dragging the mouse around them 3 3 4 Command Modes Many editing command require additional information which the request via usually small brown dialogue boxes which usually appear near the bottom left of the screen As it is possible to mix commands up either deliberately or inadvertently it is useful to know how to escape from these dialogues this is achieved by hitting the escape key Esc one or more times until all these dialogues have disappeared 3 4 How to If you get stuck try typing Escape Esc several times followed by F2 All clicks are left clicks unless otherwise stated 1 create a new cell called mycell a Do P Cell Create b In Cell Name enter mycell c In Process enter users Public BAICT 3BA4 CMOS 3BA4 exactly as shown d Close dialogue box by clicking Ok or hitting the Return key For Cell Name and Process is it also possible to click on the button marked Navigator and use the resulting
3. Getting Started with IC Design in Mentor Graphics Andrew Butterfield February 18 2005 Contents 1 Configuring Mentor 2 Running Mentor 2 1 Running IC Station e e 2 2 Running Design Manager e e 3 Using Mentor 3d Notations ca o EDS uses E E suut 32 Gettine Helps Lola s pss ee By Bi ee dhe A Xe De ene tat tg 3 2 1 Reporting Errors o luo Tex 3 39 Editing Cells i 0646 A AA bP ees 3 3 1 Edit Reservations 000000 00 3 3 2 Working Layers and Process 3 8 8 Shape Selection 0002 0000 4 3 3 4 Command Modes aa OA r Howto ei ia toc Ae ee dS decem gather 1 Configuring Mentor Before running Mentor you should check that the following environment vari ables are defined as follows variable value MGC_HOME mentor idea MGC_LOCATION_MAP mentor idea etc mgc mgc location map MGLS_LICENSE_FILE 1717 allen cs tcd ie These should have been setup automatically for you You need to set the fol lowing environment variables yourself variable value MGC TMPDIR tmp or or anywhere you have write access and space MGC WD users ug username mgc Here username should be replaced with your own username Note that you are being requested to use a subdirectory called mgc of your main UNIX directory as the place were Mentor stores your work This is to facilitate automatic coursework submission
4. dialogue box to select the desired object Select editing palette Do P Expert Edit the palette changes Despite its name the expert edit palette is the best one to use select a working layer a Invoke layer change operation P Add LAY b Click on a layer name to select it c Type Return or click OK Note that you can change layer in the middle of some of the operations described below 4 add a rectangle polygon on working layer a Invoke add shape mode P ADD SH Note how this palette item changes to gt SH b Place pointer at one corner of rectangle polygon in the working area Click then move to the next point and click again Keep clicking until you have reached the last point then double click c Continue making shapes notice that the gt SHstill stays The work ing layer can be changed in between shapes Note also that all the shapes add are added to the current selection set d To exit from Add Shape mode type Esc 5 unselect all shapes type F2 6 select a shape click near shape edge it will highlight when selected T delete a shape a Select it b Do P Edit DEL 8 move a shape a b select it Do P Edir MOV note change to 2 MOV c move to new position d click to drop shape at new location e f type Esc to exit from moving mode WA ATA E NEU AE type F2 to unselect moved items 9 exit t
5. he program do M C File gt Exit Session gt Save If you get stuck try typing Escape Esc several times followed by F2
6. ion palette to the right of the working area can be moved and resized to suit Most other regions are fixed in pace Working sub windows appear in the working area These are typically associated with individual cells that are being edited or viewed 3 1 Notation We shall use the following notation as shorthands for parts of the display and user interface actions e M the top menu bar e W the working area and any windows opened in there e P the palette e L left mouse button e right mouse button We indicate actions as per the following example M Help gt Open Bookcase gt IC Station Bookcase This means go to the Menu then use the Left button to select item Open Bookcase followed by IC Station Bookcase For the palette we often indicate sub sections after a period so P Cell refers to the section of the palette entitled Cell 3 2 Getting Help The Help menu is usually the rightmost one This allows you to access the manual bookcase and in particular the one dealing with IC Station M L Help gt Open Bookcase gt IC Station Bookcase This will open up Acrobat Reader and load up the relevant documentation You may need to repeat this action to get the document to load It is recommended that you select the IC Station User s Manual and the following parts of this are the most relevant e Chapter 9 Design Management in IC Station e Chapter 11 Cell Related Operations
7. later on You can do this with setenv commands or similar in your login file setenv MGC_TMPDIR tmp setenv MGC_WD users ug username mgc 2 Running Mentor 2 1 Running IC Station The application you will mainly be running is called JC Station This is started as follows 1 Log onto a Sun Workstation and set a Window Manager running 2 From the Unix prompt type xterm amp to set a new x term window running You want to do this because Mentor Graphics writes a transcript of user activity into the window from which it was launched 3 From the new x term window enter ic If all is well a new window called IC Station should open after a short delay 4 It is recommended that the IC Station window is maximised while working in it Possible errors that can arise include ic not found The ic application is not in your PATH Your PATH should in clude the directory mentor idea bin Licensing Problems You may be unable to connect to license server or oth erwise unable to obtain a license Contact help cs tcd ie for assistance in this case To exit from IC Station you can use the Exit option under the MGC Menu 2 2 Running Design Manager To run the Design Manager utility the unix command required is dmgr_ic All other steps are the same as for running IC Station 3 Using Mentor When IC Station runs the window looks like IC Station v8 9 8 1 IC Flow 2002 4 Session working area The Sess
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