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Chapter 6: Implementing a Design
•The par command, as provided in the script, uses a guide file in exact guide mode. Note that some designs do not require the use of guide files.
To target a different device or to use a different version of the PCI interface, see Chapter 3, “Family Specific Considerations.”
If a guide file is required, ensure that the correct guide file is used by editing the script and changing the file name. If a guide file is not required, remove the following input arguments from the par command line in the script:
If a guide file is required, the guide file must always be used. The effort levels and delay cleanup iterations may be adjusted if necessary.
•The trce command performs a static timing analysis based on the design constraints originally specified in the user constraints file.
•The netgen command generates a simulation model of the placed and routed design.
3.Implement the design by running the appropriate script.
During initial processing trials, it is useful to enter commands one at a time from the command line rather than running the script so that you can inspect the output of each step.
If the use of a guide file is required, it is important to verify that the guiding process was successful. This may be done by inspecting the pcim_top_routed.grf file. The remainder of this section is specific to designs requiring the use of guide files.
The number of
Note: Do not attempt
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| UG157 August 31, 2005 |