Why do I get "ERROR: Detected x mismatches - stopping" during simulation using the Siemens* ModelSim* Simulator? - Why do I get "ERROR: Detected x mismatches - stopping" during simulation using the Siemens* ModelSim* Simulator? Description Due to a problem in the Siemens* ModelSim* Simulator v2021.2 and earlier, you may observe this error when simulating the Native Fixed-Point DSP Stratix® 10 FPGA IP Core if you run the "msim_setup.tcl" simulation script and use the "elab" option. Resolution To work around this problem use the "elab_debug" option or use “vsim -voptargs=+acc $elabcommand”. This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Edition Software. Custom Fields values: ['novalue'] Troubleshooting 1509643295 False ['Native Fixed Point DSP Stratix® 10 FPGA IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 23.3 21.2 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']