Time Quest: Fail Setup Time n etc

--- Quote Start ---

Hi. I just switch from classic timing analysis(CTA) to time quest analysis(TQA).

Some steps are performed(as in TimeQuest Timing Analyzer.pdf) to do switching on timing analysis. After sdc file is generated, i din add any constraint into it as i totally have no idea what value to be added.

FYI, When perform full compilation on CTA, everything is fine.

However, in TQA, a lot of cases fail like

Slow Model: setup, minimum pulse width and worst case timing

Fast Model: minimum pulse width and worst case timing.

FYI, In simulation, it still get the expected result. Wonder why though it fails.

I try using the timing advisor and do as it instruct me. Anyhow, it does not solve the problem.

Any idea on how to solve it?

thanks

--- Quote End ---

Hi,

without more informations it is difficult to help you. First you should look to the clocks which TimeQuest detected. TimeOuest assumes that all clocks are related as default.

That is different to the Classic Timing Analyzer. Cut all paths between unrelated clock domains and re-run the Timing analysis.

Kind regards

GPK