261 - Lattice Diamond: Why is the maximum frequency Fmax in the Place and Route Trace report different from that in the Performance Analyst(PA) report?

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• 2350 - All FPGAs: I have successfully run Place & Route Design with the Commercial device. How can I generate a trace report for the same device with Industrial grade and 85C but without re-running the synthesis and MPAR?

  Description: You can change the post-route preference file (.prf) by adding "INDUSTRIAL;" and "TEMPERATURE 85C;". Also at the same time the trace options can be updated in ispLEVER's Tools-> Trace Options or Lattice Diamond's Strategies->Place & ...

• 2715 - Diamond: What does the "potential loop circuits" section of the <em>Place and Route TRACE</em> report mean?

  The "potential loop circuits" section of the TRACE report lists all paths that cannot be analyzed because of asynchronous loops in the circuit. The most common type of asynchronus loops are combinational logic loops that do not include any registers ...

• 723 - Lattice Diamond: PAR: What's the best way to place and route a congested design?

  Lattice Diamond: PAR: Here are some guidelines when handling a congested design. Always use the latest software for synthesis, map, and place and route. Both synthesis vendors and FPGA companies are constantly fine-tuning the tools to make them more ...

• 940 - 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 ...

• 2024 - LatticeECP3:&nbsp; How&nbsp;do I determine the delay&nbsp;of a LaticeECP3 DCS cell from a Place and Route TRACE Report?

  A DCS (Dynamic Clock Select) element only drives primary clock nets. That is why the DCS cell delay is not presented by itself in a Place and Route TRACE Report. A TRACE report will show a 0 delay through the DCS cell. Instead, the sum of the DCS and ...