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Serge93's avatar
Serge93
Icon for Occasional Contributor rankOccasional Contributor
22 days ago

F-Tile PCIe Root Port 1x Gen3x4 - Configuration Read Type 0 receives no answer

Hello Support, I am using the Agilex 7F Dev Kit with F-Tile configured in Root Port Gen3x4. When I am doing a Configuration Write Type 0 to write the End Point BAR0 with FFFF_FFFFh, the end point se...
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RongY_altera's avatar
RongY_altera
Icon for Contributor rankContributor
16 days ago

Thanks for the clarification. I misunderstood your request in the previous message.

 

From the stp, you were reading addr 0x01000010, not 0x10.

 

 

Regards,

Rong

 

Serge93's avatar
Serge93
Icon for Occasional Contributor rankOccasional Contributor
15 days ago

Hello Rong,

When using a Configuration Write or Read Request the address is compose of : Bus Number(7:) & Device Nb(7:0) & Ext_Reg(7:0) & reg Nb(7:0).

So what you see is the Bus Number=01h and Reg Nb=10h.

By the way, I have the same behaviour with the address=00h (Device ID & Vendor ID) in the Configuration Space.

Thanks for help.

Serge

  • Serge93's avatar
    Serge93
    Icon for Occasional Contributor rankOccasional Contributor
    9 days ago

    Hello Rong,

    Any news, I am blocked now. Can you have the help from another person ?

    Thank you.
    Serge

    • RongY_altera's avatar
      RongY_altera
      Icon for Contributor rankContributor
      8 days ago

      I'm trying to setup a F-Tile RP test env to check.

      • Serge93's avatar
        Serge93
        Icon for Occasional Contributor rankOccasional Contributor
        7 days ago

        Thank you Rong.

        Do you need my project ?  I can encrypted it and send it to you if you want ?

        • The sequence I am doing is the following :
          • Using the configuration Bus :
            • Read @82h to get Link Rate and Link width
            • Write 00h at @18h
            • Read @18h to check previous Write
            • Write 01h at @19h
            • Read @19h to check previous Write
            • Write 01h at @1Ah
            • Read @1Ah to check previous Write
            • Write 00h at @1Bh
            • Read @1Bh to check previous Write
            • Write 06h at @04h
            • Read @04h to check previous Write
            • Read @78h to get RP Dev CTRL register
            • Read @79h to get RP Dev CTRL register
            • Read @7Ah to get RP Dev CTRL register
            • Read @7Bh to get RP Dev CTRL register
            • Read @74h to get RP CAP Payload Max
          • Using the Avalon Stream Bus
            • Configuration Write type 0 End Point BAR0 with FFFFFFFFh @10h
              • Wait for completion (Completion received)
            • Configuration Read ype 0 End Point BAR0 @10h
              • Wait for completion (Completion NEVER received.

        Please let me know if you need any other information.

        Thanks for help.
        Serge