Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Unable to program EPCS64 via SFL

Hi all, I am attempting to reprogram a previously loaded EPCS64 through my Cyclone III LS. The EPCS64 were preprogrammed with a test load before board installation. I am now attempting to update...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

EPCS64 block protection bits may have been set. Try Quartus programmer option "Unprotect EPCS devices" under tools/options.