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Altera_Forum's avatar
Altera_Forum
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17 years ago

how to use the TimeQuest to constrain the clock skew

In the Classic Timing Analyzer,these is a constrain named "Maximum Clock Arrival Skew",but it is not supported in the Quartus II TimeQuest Timing Analyzer,how to i do to constrain the clock skew in ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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The SDC command for clock skew is 


set_clock_uncertainty <your_uncertainty> <clock>
I might have the syntax wrong, but that's the name of the command.

You can add this to the sdc file that timequest generates, then next time you open timequest and it reads the file it will load the setting.

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i will try it,thank a lot!