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RHobb's avatar
RHobb
Icon for Occasional Contributor rankOccasional Contributor
19 days ago

Terasic P16E-FMCP PCIE Express 3.0 compatibility issues with AMD processors

Hi I bought the Terasic P16E-FMCP to use on my Terasic Apollo S10 SOM board for PCI Express 3.0 implimentation. However after testing the included program, it did not work, so I emailed Terasic Supp...
Pcie
RongY_altera's avatar
RongY_altera
Icon for Contributor rankContributor
19 days ago

Hi,

 

I suspect the PCIe clock is not connected. Pls check if S10 PCIe IP clocks are connected to GBTCLK_M2C[1:0], and PCIe perstn to RES0. I don't have the schematic files.

 

 

Regards,

Rong

 

  • RHobb's avatar
    RHobb
    Icon for Occasional Contributor rankOccasional Contributor
    18 days ago

    It is connected. 

    I confirmed this through the demo program, which only runs for a single byte/read/write to query the LEDS and input from SWITCH, but the READ/WRITE from memory back to PCI space does not work. Terasic had me send the screenshots from the memory space it was supposed to write to, and did not match expected results.  

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

      Since you have PCIe connection and can do a single byte operation to LEDs, this means the link and driver should be fine. 

       

      Pls provide your lspci info for check.

       

      You can replace the PIO in your design with an on-chip mem to see if the read/write still works.

       

       

      Regards,

      Rong