Why can't I program the EPCS device on the Cyclone IV GX FPGA Development Kit? - Why can't I program the EPCS device on the Cyclone IV GX FPGA Development Kit? Description Indirect programming of the EPCS128 device on the Cyclone® IV GX FPGA Developement kit is possible, however user intervention is required to successfully complete the process. To program the EPCS128 device via the JTAG programmer with a .jic file, perform the following steps: Start the Quartus® II programmer, and setup the user interface for .jic programming as documented in AN370: Using the Serial FlashLoader with the Quartus II Software (PDF) . Press the S7 (PGM_SEL) button on the board to select the AS configuration scheme (EPCS128 device). Start programming of the FPGA by pressing the Start button in the programmer. As soon as the programming starts, hold down the S8 (PGM_LOAD) button. Monitor the "Messages" window within Quartus II. Once the EPCS device has been detected, the S8 button can be released. Detection is reported as "Device 1 silicon ID is 0x18". This process sets the mode and data pins of the FPGA in the correct state in order to allow programming. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Cyclone® IV FPGAs'] ['novalue'] ['Configuration Devices'] ['novalue']