Forum Discussion
Altera_Forum
Honored Contributor
9 years agoWow, that sounds nasty. I've never heard of that before. Anything change on the PC since it was working, like a Windows update, Quartus update, etc? You might try reinstalling Quartus so that the driver gets reinstalled. And try a Project -> Clean Project .. in Quartus to clear the project database. Then rebuild and try again. I suppose this could be an electrical problem but I doubt it. Sounds like a tool/driver problem.
If all else fails open a Service Request with Altera and send them your project. Please post back with whatever happens. This is a good one. Bob