Why does programming of EPCQ-L configuration devices fail when using Intel® Quartus® Prime Programmer Pro Edition Software version 21.1 and later? - Why does programming of EPCQ-L configuration devices fail when using Intel® Quartus® Prime Programmer Pro Edition Software version 21.1 and later? Description Due to EPCQ-L configuration devices having been discontinued (refer to PDN1802 ), EPCQ-L configuration device programming with a JIC file will fail when using Intel® Quartus® Prime Programmer Pro Edition Software version 21.1 and later. You may see the following error messages when the problem occurs: Error(19118): Erase failed on flash 1 at address 0x00000000 Error(18939): Unexpected error in JTAG server: Timeout Error(209012): Operation failed Resolution To work around this, use Intel® Quartus® Prime Programmer Pro Edition Software version 20.4 or earlier to program the EPCQ-L flash device . Custom Fields values: ['novalue'] Troubleshooting 14015580968 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 21.1 ['Agilex™ 7 FPGAs and SoCs', 'Arria® 10 FPGAs and SoCs', 'Stratix® 10 FPGAs and SoCs'] ['Quartus® Prime Pro Edition Programmer and Tools'] ['Configuration Device EPCQ-L'] ['novalue']