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Altera_Forum's avatar
Altera_Forum
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12 years ago

Worst case Tpd value changing

My simple programme tpd value is different from my previous compilation. Im using the same code and device family but dnt knw wats the cause of this variation. Previously had 5ns. Now im getting...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

You may well see different results each time thanks to the way Quartus can use random seeds for compilation. More importantly, have you constrained your design? Quartus will aim to achieve the timing you require, providing you've supplied it. How important is the worst case tpd if the design meets your requirements?

Regards,

Alex