University of California s10

UNIVERSITY OF CALIFORNIA College of Engineering Department of Electrical Engineering and Computer Sciences Last modified on September 11, 2005 by Ke Lu ([email protected])

Dejan Markovic Lab #2: Layout Editing with Virtuoso EECS 141

1. Objective

This semester we are using a layout tool from Cadence called Virtuoso. The purpose of this lab is to familiarize you with the nuances of this software and to work out any "tools" problems with both Virtuoso and Exceed.

2. Tasks

 The first thing you must do is make sure your account has been configured to use the Cadence software: o Start Exceed on the Windows/local machine. o Change Exceed display settings on the Windows machine (see TA). (Tools -> Config -> Other Server Settings Maximum Backing Store: Always Default Backing Store: When Mapped Minimum Backing Store: When Mapped) o Log in to c199, cory, quasar or pulsar. Make sure you enable tunneling first. o Use TCshell: c199% tcsh o Add the following lines to the bottom of your .cshrc file: setenv CDS_SITE /usr/eesww/cadence/NCSU_CDK setenv CAD_PROCESS NCSU_CDK_10 source /usr/eesww/cadence/setup/config/cadence.cshrc

 Create an directory for your EE141 work in your root path: c199% mkdir ~/ee141  Create a directory inside the ee141 folder called lab2: c199% mkdir ~/ee141/lab2  Copy this display.drf file to your ee141 folder: c199% cp ~kelu/display.drf ~/ee141  Also in ~/ee141 create a text file called cds.lib with the following two lines of text:

DEFINE NCSU_TechLib_tsmc03d /usr/eesww/cadence/NCSU_CDK/lib/NCSU_TechLib_tsmc03d INCLUDE /usr/eesww/cadence/NCSU_CDK/cdssetup/cds.lib (make sure you put each command on its own line with no line-breaks within each command, and put at least one blank line at the end of the file)

 Save cds.lib.  Type icfb & in the ~/ee141 directory at the command prompt to start Cadence. IMPORTANT: Always switch to the ~/ee141 before you start Cadence.  In this first software lab, all you have to do is run the tutorial you can find here: http://bwrc.eecs.berkeley.edu/Classes/Icdesign/ee141_f05/CadenceLabs/Lab2/VirtuosoTutorial.htm This will familiarize you with Virtuoso’s basic editing and interface procedures.  Create a layout plot of the design. You will need to print out a copy of the top view (the row cell). To print your layout: o In the Layout window go to Design -> Plot -> Submit o Click on Plot Options at the bottom of the menu o Select Encapsulated PS in the Plotter name field o Click on “Send plot only to file” and give a filename (e.g. plot.ps) o OK o Use gs plot.ps to preview your printout o ftp plot.ps to your Windows account or print directly from UNIX using: lp -d printer_name plot.ps

 Ask you lab TA for further assistance or updates with printing issues.

3. What To Turn In (Due 1 week after the lab)

This particular lab is not very demanding. To get credit for the lab, all you have to do is to be there and turn in the printout of the row cell.