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Altera_Forum
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8 years ago

Unknown IDCODE for Cyclone 10GX device

Greetings. I am doing board bring-up on a new design that uses a Cyclone 10GX (PN: 10CX105YF672E5G). When I execute a AutoDetect in the Quartus Pro programmer it reports UNKNOWN_2E720DD. The C10GX...
Altera_Forum's avatar
Altera_Forum
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8 years ago

Anand,

We were going down the wrong path. I found another post that suggested this is an issue with the JTAGserver not finding the correct files and recommended removing and re-installing Quartus. I did this and now the programmer, SignalTap, and NIOS debugger report "10CX105Y" correctly. Problem solved.

Thanks,

Bill