Why does the Active Serial (x1 and x4) configuration of Intel® Arria® 10 or Intel® Cyclone® 10 GX devices fail after a power cycle when using Macronix flash devices? - Why does the Active Serial (x1 and x4) configuration of Intel® Arria® 10 or Intel® Cyclone® 10 GX devices fail after a power cycle when using Macronix flash devices? Description When using the Intel® Quartus® Prime Software version 18.1 for the programming of Macronix flash devices, you will observe a successful programming sequence, but you may observe an Active Serial (x1 and x4) configuration failure after a power cycle, with Intel® Arria® 10 or Intel® Cyclone® 10 GX devices. Resolution To work around this problem, check the “Disable EPCS/EPCQ ID check” option in the 'Advanced Options' of the 'Convert Programming File' tool. This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 19.1. Custom Fields values: ['novalue'] Troubleshooting FB: 595792; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro', 'FPGA Dev Tools Quartus® Prime Software Standard'] 19.1 18.1 ['Arria® 10 FPGAs and SoCs', 'Cyclone® 10 GX FPGA'] ['novalue'] ['novalue'] ['novalue']