Internal Error: Sub-system: PTI, File: /quartus/tsm/pti/pti_tdb_builder.cpp, Line: 5410 - Internal Error: Sub-system: PTI, File: /quartus/tsm/pti/pti_tdb_builder.cpp, Line: 5410 Description Due to a problem in the Quartus® Prime Pro Edition Software version 24.2 and earlier, you might see this error when the cascade_out port of an IOPLL FPGA IP is connected to logic other than the refclk port of another IOPLL. Internal Error: Sub-system: PTI, File: /quartus/tsm/pti/pti_tdb_builder.cpp, Line: 5410 ATOM *|iopll_0|tennm_pll Type: FALCONMESA_IOPLL (atom id 309) with OTERM type O_PLL_CASCADE_OUT[0] does not lead to top-level port when it wants to reach ITERM type CLK[0] of ATOM Resolution To work around this problem, do not connect the cascade_out port of an IOPLL IP is connected to logic other than the refclk port of another IOPLL. Custom Fields values: ['novalue'] Troubleshooting 18039470653 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 23.4 ['Arria® 10 FPGAs and SoCs', 'Cyclone® 10 GX FPGA', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']