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NitzanD's avatar
NitzanD
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2 years ago

virtual clock - latch and launch clock on same cycle

Hi, I am defining a virtual clock in .fdc file for work with external device as in the link here: https://www.intel.com/content/www/us/en/docs/programmable/683068/18-1/creating-virtual-clocks.html...
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Nurina's avatar
Nurina
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hello Nitzan,


Usually you don't have to specify that real clock and virtual clock are in different clock groups.

As mentioned in email, I think the problem is that you are using the same virtual clock for both input and output delay.

Have you tried using different virtual clocks for input and output delay?


Regards,

Nurina


  • NitzanD's avatar
    NitzanD
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    2 years ago

    I haven't. why should they be different ?

    BR
    Nitzan