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SK_VA's avatar
SK_VA
Icon for Occasional Contributor rankOccasional Contributor
7 years ago

Timing constraints to asynchronous output

I have outputs from one FPGA to another FPGA. Outputs are clocked out of one FPGA and is completely combinational in the other FPGA. Can I set false path to these outputs.

4 Replies

  • Yes. Set false paths to any input or output signals that you don't need the timing analyser to consider.

    Cheers,

    Alex

    • SK_VA's avatar
      SK_VA
      Icon for Occasional Contributor rankOccasional Contributor

      Hi Thanks for the Reply.

      How can we determine the signals that doesn't require timing analysis?

  • Any signal in to or out of the device that is asynchronous - i.e. doesn't have an associated clock.

    Cheers,

    Alex

    • SK_VA's avatar
      SK_VA
      Icon for Occasional Contributor rankOccasional Contributor

      Hi Thanks for the reply.