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Altera_Forum's avatar
Altera_Forum
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13 years ago

How to see the critical path of the design?

After the design is fully compiled, there is a parameter in different corner mode that is fmax. As my understand, this value depends on the length of critical path in the design. If the critical path...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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You should use Timequest to find this information. Specify your timing requirements and which clock frequencies you must use in your design, and any path that is too long to fit your requirements will end up in the "Top failing paths" report.

AFAIK Timequest gives a Fmax for all 3 timing models used.

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Thanks. I got it. Sometimes, when I read the fmax, the report posts several clocks in my

design with different fmax. What is mean of that?