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Altera_Forum's avatar
Altera_Forum
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22 years ago

IDE FLash Programmer

I am having troubles with the Flash Programmer whne flashing the EPCS. The main problem is it isn't working. I have three different boards that all fail in the same way. Here is the console ou...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
22 years ago

After four hours with our distributor's FAE, we found the problem. It seems there is a bug in SOPC builder and/or quartus. In our case, we have boards with an EPCS but no flash. It seems that if the Nios 2 on the target board has no outputs (as would be the case with no flash), the compiler optimizes away something. Anyway, the kludge is to add a PIO and send it to a virtual pin. This prevents the optimization from happening.