Why does programming of the non-volatile key fail in Quartus version 15.1 and earlier when AS configuration mode is used in Arria V, Cyclone V and Stratix V devices? - Why does programming of the non-volatile key fail in Quartus version 15.1 and earlier when AS configuration mode is used in Arria V, Cyclone V and Stratix V devices? Description Due to a known issue with the Programmer in Quartus® Prime software version 15.1 and earlier, you may fail to program the non-volatile key when Active Serial (AS) configuration mode is being used in Arria® V, Cyclone® V and Stratix® V devices. Resolution This issue has been fixed in the Quartus Prime software version 15.1.1 and later. The fix can be used to generate a JAM, JBC or SVF file to program the non-volatile key as well. For stand-alone Programmer users, only Quartus Prime Programmer version 16.0 and above may be used. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 15.1.1 novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']