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James_B's avatar
James_B
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3 years ago
Solved

Quartus Fitter Random Failing

I have a design for Cyclone VE that is about 90% full, and if I recompile the same design several times in a row, the design will intermittently fail on routing. The router settings have been at Pe...
  • sstrell's avatar
    sstrell
    3 years ago

    Choosing the performance option runs the Fitter "harder" to get better results. Even with minor changes, you're changing the initial seed used by the Fitter so the results can be different (including not finding a valid fit).

James_B's avatar
James_B
Icon for Contributor rankContributor
3 years ago

The device is 90% full - a Cyclone VE 5CEFA7 part. I am using Quartus 20.1 lite *and* prime standard to compile, and get the same results.