Forum Discussion
Altera_Forum
Honored Contributor
Honored Contributormax operational Frequency
Hello folks, I use Quartus II 8.1 and DE2 board. When I compile my design I don't have errors in report, only warnings. But, looking at the report window I can see that my design don't meet t...
Altera_ForumHonored Contributor
Honored ContributorAssuming that you're using the "Classic Timing Analyser" (I'm not sure if this applies to Time Quest), go to Processing >> Compilation Report.
Expand the "Timing Analyser" bit and it will show you what has failed - click on the specific parameter to show you the nets. Yes, these two critical paths will determine your maximum operational frequency. There are various places you can dinf the Fmax - continuing from above, if you click Timing Analyser >> Summary then you can see there. If you click Timing Analyser >> Clock Setup (or hold) then it will help you work out which paths in particular are a problem. Don't set your Fmax requirement to be much higher than it needs to be - it will make life unnecessarily hard for the place and route. Hope this helps
