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Altera_Forum's avatar
Altera_Forum
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12 years ago

Cyclone III device utilization issues

I am having trouble getting my design to finish compiling. I think it is using about 50% of the device. It doesn't error out, it just runs forever. Has anyone else had a problem with this? How much u...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

90+%? There are two issues. One is that as devices fill up, the performance can get a little worse. If you barely meet timing, then it becomes an issue at a lower percentage. The other issues are when it barely routes or no-fits altogether. That should be above 90%. (And that's just logic, but memory and DSPs can also be overutilized...)