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Serge93's avatar
Serge93
Icon for Occasional Contributor rankOccasional Contributor
9 months ago

AGILEX 7-I R-Tile PCIe Root port : Unsupported Request received after enumeration

hello, I am using the the Agilex 7-I r-tile Dev kit board in PCIe Root Port. After I have done my enumaration when I am doing a Memory Read of one 32-Bits data, I receive a completion with 'Unsuppo...
Board Debug
RongY_altera's avatar
RongY_altera
Icon for Contributor rankContributor
8 months ago

Hi,

Please check the link status is OK before doing a mem read/write.

Please confirm the PCIe Command Register bit 1 is set and also confirm the address you read is valid.


Regards,

Rong


  • Serge93's avatar
    Serge93
    Icon for Occasional Contributor rankOccasional Contributor
    8 months ago

    Hello Rong,

    Thank you to come back to me.

    1) Yes the Link up is stable and good.

    2) Can you detail what you mean by the PCIe Command Register ? What address ? in Root Port or in Target ?

    3) Yes the address is fully valid in the Target.

    Please find attached the Signal Tap of all the Enumeration sequence done from the AGILEX 7-I R-Tile Root port and then the Memory Read done at the end on the Target with the Unsupported Resquest Completion received.

    This way you can verify easily what I am doing wrong.

    Thank you for your help.

    Serge