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Altera_Forum
Honored Contributor
Honored Contributorerror CONF_DONE pin failed to go high : cyclone 4 evalboard
hi i am using the Cyclone IV GX FPGA Development Board. it has worked fine for the last few months but now when i try to download the sof file on the FPGA the prosses go to near 90% then i have th...
Altera_ForumHonored Contributor
Honored ContributorMaybe strange idea, but have you checked, that the device in QuartusII matches the target device on the board? (in case it's an iteration of an existing design it should).
I had similiar stuff with prototype units I'm working with after several reprogramming and USB-Blaster connect/disconnect cycles. Unfortunately all devices showing the issue you describe were physically damaged, most likely by voltage peaks by connecting / disconnecting the USB-Blaster... Hope your's problem has other than physical (broken device) reason... BTW: I do not think it's an installation issue - maybe you can check the JTAG I/F in QuartusII (try to have Quartus find any connected devices).
