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Altera_Forum
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10 years ago

Faulty Cyclone II FPGAs

We have a board utilising a Nios II/f in a Cyclone 2 FPGA which was designed 4 years ago. Up until recently the production boards have worked fine however over the last 6 months we are seeing a sig...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

I agree with Alex, I'd also check for timing problems before blaming the FPGA. Some designs can work fine for ages with a timing problem, and suddenly with a specific batch or specific conditions (temperature, supply voltage) they start failing. Check your timing constraints and all the warnings/errors reported by TimeQuest.