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DS80PCI800: Hardware Error: Unsupported Request Error

Jimmy_Hsiao
Prodigy 70 points
Part Number: DS80PCI800

Hi,

Sometimes OS will show Hardware Error (Unsupported Request Error), when full run PCIe device. We use DS80PCI800 on our PCIe bus.

Anyone has experience on this error?

Thanks,

Jimmy

  • 0
    TI__Mastermind 43795 points

    Hi Jimmy,

    The DS80PCI800 will not modify any PCIe protocol information.  The redriver is only designed to help compensate for transmission losses within the PCIe channel.

    The Hardware Error is likely a "bit error" on the link.  Can you help to describe the attenuation within channel segment, the channel topology, and the DS80PCI800 settings?   With this information I may be able to further optimize the redriver settings. 

    Thanks and Regards,

    Lee