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ID: 940
实例类型: faq
分类: Implementation
相关: Timing Analysis
产品系列: All Devices

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Diamond: Timing: Why are there two trace reports in the Lattice software?

Diamond: Timing: There are two trace reports (a Map trace report and a Place-and-Route (PAR) trace report) that serve two different purposes.


  • The Map Trace report has estimated routing. It should be used to verify the paths you expect are being reported and to get an idea of the delays before running PAR.  Doing this can save a lot of compute time before getting to the PAR stage.

  • The PAR Trace report has the delays based on the actual Placement and Routing delays in your design and is a more realistic estimate of the actual timing.