Using AS and .sof
I wish to update an old Cyclone3 using usb-blaster and epcs16. Programmer selects .sof ok but tries to use JTAG. Changing mode to AS results in the .sof file being de-selected and I cannot select it manually despite it being in the output file. Is there a special setting somewhere?
I initially used Quartus 7.1 but, of course, this is not compatable with windows 10 so I am using 13.1.
I have successfully reprogrammed my old DE - from version 7.1(!) so I know everything else works.
(ps. I did ask once before but I was unable to respond to the person who tried to help. My apologies in advance if this happens again)
An .sof can only be used to program directly over JTAG. To put a programming file in a flash/config device, you need a different file format, like .pof or .jic or others.