Honored Contributor
Honored ContributorOh! okay, I understood it wrong. You are trying to read-back the program information from the FLASH via the JTAG. If so, did you check if the Protection setting has been turned off in the board. Altera boards generally have a security setting DIP switch , I think SW1 or SW4. By default, the security setting is enabled. I think if you disable this security setting you maybe able to readback from FLASH.
On the other hand, sometimes, Altera may not allow you to readback from FLASH as well. You need to check with the board schematic and information if this SW DIP switch setting is present and enabled.
