Description
The Verilog HDL simulation model for IOPLL IP for Intel® Cyclone® 10 LP devices is not supported in the Intel® Quartus® Prime Standard Edition software version 17.1 and earlier. You will see that the IOPLL output clocks do not toggle.
Resolution
To simulate the IOPLL IP for Intel® Cyclone® LP devices, either use the VHDL simulation model in 17.1 or the Verilog HDL model in the Intel® Quartus® Prime Standard Edition software version 18.0 or later.