Why does the sof2flash utility fail to work with EPCQ devices in Intel® Arria® 10, Intel® Cyclone® 10, and Intel® Stratix® 10 designs? - Why does the sof2flash utility fail to work with EPCQ devices in Intel® Arria® 10, Intel® Cyclone® 10, and Intel® Stratix® 10 designs? Description Due to a problem in the Intel® Quartus® Prime Design Software version 17.1 and earlier, the sof2flash utility may fail to work with EPCQ devices in Intel® Arria® 10, Intel® Cyclone® 10, and Intel® Stratix® 10 designs. The following error message may be seen: sof2flash: Unrecognized device family in SOF Resolution To work around this problem, follow the steps below: Generate RPD via the Convert Programming Files tool quartus_cpf -c --device=<EPCQ flash density> -o auto_create_rpd=on -o rpd_little_endian=off <SOF filename> <POF filename> Example: quartus_cpf -c --device=EPCQ64 -o auto_create_rpd=on -o rpd_little_endian=off c10lp_gsrd.sof c10lp_gsrd.pof Convert RPD to .flash via nios2-elf-objcopy tool nios2-elf-objcopy -I binary -O srec --srec-forceS3 --srec-len 32 <RPD filename> <FLASH filename> Example: nios2-elf-objcopy -I binary -O srec --srec-forceS3 --srec-len 32 c10lp_gsrd_auto.rpd c10lp_gsrd.flash Custom Fields values: ['novalue'] Troubleshooting FB: 553632; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 17.1 ['Arria® 10 FPGAs and SoCs', 'Cyclone® 10 FPGAs', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']