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Virtuoso Schematic Composer User Guide

Customizing the Schematic Composer

Changing the Display of the Icon Bar

To specify how the system displays icon bar commands, such as icons or text, use SKILL functions. Refer to the schRegisterFixedMenu and schUnRegisterFixedMenu functions in the Virtuoso Composer Schematic SKILL Functions Reference Manual.

You can type the SKILL functions in the Command Interpreter Window (CIW), in which case they remain active for the session only. Or you can type the SKILL functions in your

.cdsinit file, in which case they become active whenever you start the schematic composer.

Understanding Initialization and Setup Files

You can customize elements of the user interface by modifying these files.

Filename

Customizing Ability

 

 

 

schConfig.il

The configuration file specifies various schematic composer

 

configurations

schBindKeys.il

The bindkey file sets the bindkeys for the schematic composer

schFixMenu.il

The fixed menu file sets the icon bars

.cdsinit

The Cadence initiation file sets environment variables that

 

contain user or site SKILL code definitions

 

You can set these variables by calling schSetEnv or

 

envSetVal in the .cdsinit file.

.cdsenv

The Cadence environment file sets default values for

 

environment variables in Cadence Design Framework II.

 

You can create the .cdsenv file by using the Options –

 

Save Defaults command.

 

 

 

Converting a Schematic from a 0.125 Grid to a 0.1 Grid

Setting a new grid spacing can cause some of your existing symbols, pins, and wires to go off grid. The best way to convert a schematic from a 0.125 grid to a 0.1 grid, is to change the values in the .cdsenv file by doing the following:

Note: Change the default in your .cdsenv file to set the default for every library. It is not advisable to set up different grids or different snap spacing for different libraries.

October 2002

491

Product Version 5.0

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