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Altera_Forum
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7 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...
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Altera_Forum
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7 years ago

Thanks for your reply Anand!

I need a bit more help. I verified the nCONFIG and nSTATUS lines are high.

I can get to the "Edit Device" window ok, but I'm stuck trying to find the instruction register length for the Cyclone 10 GX. Chapter 9 of the handbook points me to this URL for BDSL files but Cyclone 10GX devices are not in the list:

https://www.altera.com/support/support-resources/download/board-layout-test/bsdl/_11491/bsd-11491.html

Is there another place I should be looking for the instruction register length?