Why does the In-System Programmability (ISP) Clamp feature not work when programming an Intel® MAX® 10 device with a Jam STAPL Byte Code (.jbc) file? - Why does the In-System Programmability (ISP) Clamp feature not work when programming an Intel® MAX® 10 device with a Jam STAPL Byte Code (.jbc) file? Description Due to a problem in the Intel® Quartus® Prime Software Programmer version 19.3 and earlier, you might see the ISP Clamp feature not working when programming an Intel® MaAX® 10 device with a Jam STAPL Byte Code (.jbc) file. Resolution To work around this problem, perform the following steps: Use the Assignment Editor to add an In-System Programming Clamp State assignment with the required clamp value and compile your design. In the Intel® Quartus® Prime Software Programmer, add your compiled Programming Object File (.pof) file. Check all the Program/Configure and ISP CLAMP options. Check the option Enable real-time ISP to allow background programming . Generate the Jam STAPL Byte Code (.jbc) file through the menu File > Create JAM, JBC, SVF or SC File. Program your device with the generated Jam STAPL Byte Code (.jbc) file. Ensure that the Enable real-time ISP to allow background programming option is disabled. Custom Fields values: ['novalue'] Troubleshooting 1507369501 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 19.3 ['MAX® 10 10 FPGAs'] ['Altera® FPGA Programming Software'] ['novalue'] ['novalue']