Internal Error: Sub-system: ASMIO, File: /quartus/comp/asmio/asmio_oct.cpp, Line: 922 - Internal Error: Sub-system: ASMIO, File: /quartus/comp/asmio/asmio_oct.cpp, Line: 922 Description Due to a problem in the Quartus® Prime Standard Edition Software version 18.1 and earlier, you may see this internal error at assembler stage due to incorrect termination settings. Resolution To work around this problem, review your termination settings in the assignment editor and set it to a legal value as per device data sheet. Custom Fields values: ['novalue'] Troubleshooting FB: 573752/ 2205691508; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Standard'] novalue 18.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']