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VFlav's avatar
VFlav
Icon for Occasional Contributor rankOccasional Contributor
3 years ago
Solved

Final postfit netlist check failed ; Internal Error: Sub-system: FDRGN

Hey, I open discussion to report Final postfit netlist check failed. Quartus compilation crash at the end of fitter process. Problem Details are available below for more information. As recommand...
  • VFlav's avatar
    VFlav
    3 years ago

    Hi,

    Thanks for your help

    Unfortunately, I'm not authorised to share my project.

    To complete the compilation, I had to delete DDR4 communication with FPGA.

    This issue can be solve from your side with this modification.

    Best regards,

RichardT_altera's avatar
RichardT_altera
Icon for Super Contributor rankSuper Contributor
3 years ago

Could you upgrade your project to the latest Quartus Pro version 22.3 and see if the internal error(IE) resolves?

If the IE still occur, please help to share us the project .qar files as we will need to duplicate the error.

Without the error duplication from our side, it would be hard to find a workaround/solution.


Best Regards,

Richard Tan

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 9/10 survey.