Article ID: 000098869 Content Type: Troubleshooting Last Reviewed: 05/27/2024

Why are there unexpected timing paths with HPS EMAC clocks in the timing report when HPS EMAC is routed to FPGA?

Environment

  • Intel® Quartus® Prime Pro Edition
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    Description

    Due to a problem in the Quartus® Prime Pro Edition Software version 24.1 and earlier, you may see unexpected timing paths in the timing report for EMAC clocks when HPS EMAC is routed to FPGA.

     

    Resolution

    Below top entity is helping to understand EMAC clocks,  "emac1_gtx_clk" and "user0_clock_clk" used in the design where EMAC1 routed to FPGA:

     

    To workaround this problem, use below SDC contranits:

    set_false_path -fall_from emac1_gtx_clk -rise_to emac1_gtx_clk

    set_false_path -fall_from emac1_gtx_clk -rise_to user0_clock_clk

    Additional information

    The problem will be fixed in a feature release of the Quartus® Prime Pro Edition Software.

    Related Products

    This article applies to 1 products

    Intel Agilex® 7 FPGAs and SoC FPGAs