A patch is available to fix this problem for the Quartus II software version 12.1SP1.
You must either have previously installed the Quartus II 12.1 SP1 software or must install the Quartus II 12.1 SP1 software before installing this patch. Otherwise, the patch will not be installed correctly and the Quartus II software will not run properly.
Download and install the appropriate patch from the links below, then re-runthe sof2flash for Cyclone II design.
- Download quartusii-12.1sp1-1.72-windows.exe
- Download quartusii-12.1sp1-1.72-linux.tar
- Download quartusii-12.1sp1-1.72-readme.txt
This problem is fixed for the Quartus® II software version 13.0 and later.