Article ID: 000086944 Content Type: Troubleshooting Last Reviewed: 01/31/2018

Why does the Intel® Stratix® 10 External Memory Interfaces DDR4 IP show minimum pulse violations on the wf_clk clocks in the Intel Quartus® Prime timing analyzer?

Environment

  • Intel® Quartus® Prime Pro Edition
  • External Memory Interfaces Intel® Stratix® 10 FPGA IP
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Due to a problem in the Intel® Quartus® Prime Pro software version 17.1.1, you may see Minimum Pulse Width timing violations associated with the wf_clk_<number> clocks in the Intel Quartus Compilation TimeQuest report of a project implementing the Intel Stratix® 10 External Memory Interfaces DDR4 IP.

    An example of a Minimum Pulse Width timing violation from the Intel Stratix 10 DDR4 example design project is emif_s10_0|emif_s10_0_wf_clk_3 with a slack failure of -0.058.

    Resolution

    The wf_clk clock minimum pulse width violations can be ignored.
    This problem is scheduled to be fixed in a future release of the Intel Quartus Prime Pro software.

    Related Products

    This article applies to 1 products

    Intel® Stratix® 10 FPGAs and SoC FPGAs