Well, based on some suggestions from some Shmups forum posts, I decided not to worry too much about getting one of the official Altera USB blasters, and just got one of the much-cheaper clones off Amazon. Only problem is now I can’t get it working to update my firmware…
With the Altera drivers installed for the blaster, my computer bluescreens if I open the Quartus programmer with it connected, though detects it alright if I wait to connect it until the program has started up. However, if I then connect and switch on the OSSC, open the .jic file as described in the instructions, and finally hit Start, the programmer runs for a few minutes before failing with the error “Can’t access JTAG chain”.
Has anyone else encountered anything like this in trying to update their firmware via JTAG, or should I just chalk it up to the programmer being cheap junk?