Article ID: 000074125 Content Type: Troubleshooting Last Reviewed: 11/26/2024

Why non-CvP PCIe interface failed to be detected when CvP is enabled?

Environment

  • Intel® Quartus® Prime Pro Edition
  • PCI Express
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    Description

    When you enabled PCIe CvP containing multiple PCIe interfaces, you will need to make sure that your device is able to enter usermode within 1s after the PERST# reset. If FPGA is not able to enter user mode within the time limit then you might observed device not detected or system crash.

    You may refer to PCIe Base Specification Chapter 6.6.1 for more information on the PCI Express* Reset rules.

    Resolution

    We recommend you to use Autonomous mode which is able to guarantee that the FPGA is able to enter user mode within the time limit.

    Related Products

    This article applies to 3 products

    Intel® Arria®
    Intel® Cyclone®
    Intel® Stratix®