Article ID: 000098474 Content Type: Troubleshooting Last Reviewed: 03/29/2024

Why does an IOPLL Intel® FPGA IP with dynamic reconfiguration enabled not lock during simulation when the mgmt_clk port is connected to an output clock of another IOPLL Intel® FPGA IP when using Intel® Cyclone® 10 devices?

Environment

  • Intel® Quartus® Prime Design Software
  • Intel® FPGA Simulation Tools
  • IOPLL Reconfig Intel® FPGA IP
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    Description

    During simulation, an IOPLL Intel® FPGA IP with dynamic reconfiguration enabled may fail to lock when the mgmt_clk port of the PLL Reconfig Intel® FPGA IP is connected to an output clock of another IOPLL Intel® FPGA IP in Intel® Cyclone® 10 devices. This behavior is only seen during simulation and doesn't appear in hardware.

     

     

    Resolution

    As a workaround, connect the mgmt_clk port on the PLL Reconfig Intel® FPGA IP to a free running clock.

    Related Products

    This article applies to 1 products

    Intel® Cyclone® 10 FPGAs