Article ID: 000097196 Content Type: Troubleshooting Last Reviewed: 06/18/2024

Why does the PHY Lite for Parallel Interfaces FPGA IP with dynamic reconfiguration in the Agilex™ 7 M-Series fail calibration in the Quartus® Prime Pro Edition Software version 23.3?

Environment

  • Intel® Quartus® Prime Pro Edition
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 23.3, the calibration result will fail when you run the PHY Lite for Parallel Interfaces Intel® FPGA IP with dynamic reconfiguration at 600 MHz interface frequency or lower in the Agilex™ 7 M-Series FPGA.

    Resolution

    To work around this problem, for PHY Lite for Parallel Interfaces FPGA IP running at 600 MHz interface frequency or lower in the Agilex™ 7 M-Series FPGA, you need to increase the read_enable_offset parameter by 2 from its default value.

    Please refer to the PHY Lite for Parallel Interfaces Agilex™ 7 FPGA IP for M-Series chapter, Section 2.2.1.3 Input Path, Table 10 Allowed values for read_enable_offset based on RcvEn coarse delay.

    In the top-level RTL, the read_enable_offset parameter is named GROUP_X_RCVEN_TO_READ_VALID_OFFSET. The IP sets the read_enable_offset parameter to 3 or 4 by default. This value needs to be increased from its default value by 2.