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Parasitic Aware Design Workspace Configurations
When you access ADE Explorer or ADE Assembler functionality, the Workspace Configuration toolbar updates to include three Cadence-provided parasitic aware design window workspaces, Parasitics - Estimated, Parasitics - Compare and Parasitics - Extracted, that comprise of a combination of parasitic aware design and ADE Explorer or ADE Assembler assistant panes.
- For more information on window workspaces, including the ability to customize and save your own, see the Virtuoso Design Environment User Guide.
- For more information on the Parasitics - Estimated workspace, see Setting Up and Using Parasitics
- For more information on the Parasitics - Extracted window workspace, see Parasitic Filters Assistant
- For more information on the Parasitics - Compare window workspace, see Parasitic Report Assistant
Availability of Parasitic Aware Design Features
The following table details what parasitic aware design features are available in each application that parasitic aware design can be invoked from:
| Feature | VSE L/XL | ADE Explorer / ADE Assembler |
|
Parasitics & Electrical Setup (including the Parasitic Estimates assistant) |
||
Key Bindings
For details of key binding shortcuts that can be used with parasitic aware design see the dfII/samples/local/mspsBindKeys.il in the Cadence installation hierarchy.
Access Keys
Menu access keys also provide keyboard access to functionality and application menus without the need to use mouse selections.
For a full description of access keys see
| Menu Command | Access Key |
Net |
|
Net to Net |
|
Terminal to Terminal |
|
Net Capacitors |
|
All Nets |
|
Alt + R. If you initially need to add the Parasitics menu to the banner menu you should first select Alt + L (to show the contents of the Launch menu), then select the R access key to add the Parasitics menu to the Schematics XL/GXL banner menu (the Parasitics menu exists by default in the ADE Explorer/ADE Assembler banner menus).| Menu Command | Access Key |
Setting Parasitic Aware Design Options Using .cdsenv
As well as setting parasitic aware design options via the user interface, you can also set parasitic aware design options by editing the .cdsenv file.
The .cdsenv file is automatically read when virtuoso and other Cadence tools are invoked. The .cdsenv file exists as both a system setup file and an individual user file.
-
The system setup file is located at:
(For QRC)$CDS_INST_DIR/tools/dfII/etc/tools/mspsAv/.cdsenv
(For Diva)$CDS_INST_DIR/tools/dfII/etc/tools/msps/.cdsenv
Its content is in the format:
tool[.partition] varName type value private {choices, minmax} comment
For example:
mspsAv.options xOffset float 0.0 nil mspsAv.options yOffset float 0.0 nil -
For an individual user the
.cdsenvfile exists in their home directory:
~/.cdsenv
Its content is in the format:
tool[.partition] varName type value
For example you could add the following to change an individual user’s default x-offset.
mspsAv.options xOffset float 0.1
Error Message Display
Parasitic aware design uses an error message counter to prevent the display of excessively repetitive messages. The maxConsecutiveMessages variable can be defined in .cdsenv.
mspsAv.options maxConsecutiveMessages int 5 nil
The above, example, variable setting will ensure that any potential errors occurring, from use of any of the Parasitics menu options, will only be repeated up to a maximum of 5 times in the CIW.
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