Internal Error: Sub-system: SIN, File: /quartus/tsm/sin/sin_micro_tnodes_dag.cpp, Line: 673 - Internal Error: Sub-system: SIN, File: /quartus/tsm/sin/sin_micro_tnodes_dag.cpp, Line: 673 Description Due to a problem in the Quartus® Prime Pro Edition Software version 17.1 and earlier, you may see this internal error when generating an IBIS model for your design. Resolution To work around this problem, go to Assignments > Settings > EDA Tool Setting > Board-level Signal Integrity Analysis and turn off Enable Model Selector. This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Edition Software. Custom Fields values: ['novalue'] Troubleshooting FB: 511214; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 18.0.1 17.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']