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Altera_Forum
Honored Contributor
11 years agoHi hangyuxuan19910802,
If your board was functioning before you updated the flash with a design you compiled yourself, I would think that maybe the flash update was not successful or the aocx file was somehow invalid. Depending on the board you have (A7 or D5), I would reprogram the flash with the factory design for 13.1 I previously posted using the "aocl flash <design>.aocx" command. Once you have done that, power down your system fully (not only reboot) and power it back up. Then check if you can do "aocl diagnostic" again. Thanks, G