Why do I see both compilation failures and functional problems when using multiple instantiations of the Interlaken (2nd Generation) Intel® FPGA IP core with different configurations in the Intel® Quartus® Prime Pro Edition Software?

Description

Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 20.2 and earlier, instantiating different configurations of the Interlaken (2nd Generation) Intel® FPGA IP core in your design may encounter problems. The file uflex_ilk_dcore.sv is not unique to each configuration of the intellectual property (IP) and this can cause compilation and functional problems.

Resolution

To work around this problem in the Intel® Quartus® Prime Pro Edition Software version 20.2 and earlier, uniquify the file uflex_ilk_dcore.sv for each configuration of the Interlaken (2nd Generation) Intel® FPGA IP core to be used.

This problem has been fixed starting with the Intel® Quartus® Prime Pro Edition Software version 20.3.