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Altera_Forum's avatar
Altera_Forum
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15 years ago

Strange problem: design works with SignalTap, but not without it.

I'm running into a strange problem that I hope someone out there can help me out with. I had a system that consisted of a single SOPC System that instantiated two NIOS II/f CPUs. The CPUs do not sh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

My first answer would be a timing problem... Check that your sdc file gives the correct constraints for all the input outputs, and that your design does meet all the timing requirements (when it doesn't, Timequest just generates a critical warning, not an error).