Quartus Internal Error: Incorrect Fanout Count - Quartus Internal Error: Incorrect Fanout Count Description In the Quartus ® Prime Pro Edition software, running SPECTRA-Q PHYSICAL SYNTHESIS on designs containing JTAG IP or certain DSP modes might cause an internal error with the following error message: Quartus Internal Error: Incorrect Fanout Count Resolution Disable SPECTRA-Q PHYSICAL SYNTHESIS by setting the following Quartus Prime Settings File (QSF) assignment: set_global_assignment -name SPECTRAQ_PHYSICAL_SYNTHESIS OFF Custom Fields values: ['novalue'] Troubleshooting FB369243; True ['DSP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 16.1 16.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue'] - 2021-08-25

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