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CaptainPrice15's avatar
CaptainPrice15
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6 months ago

Pin allocation for PCIe HIP gen 2 x1 with Avalon-MM Interface

I wish to use the Intel HIP for cyclone 10GX with a F780 package. I wish to use only 1 lane of PCIe 2.0 with Avalon-MM as interface. The quartus software is allowing me to place the tx pin pair only ...
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CaptainPrice15's avatar
CaptainPrice15
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6 months ago

Hello @Wincent_Altera ,

Thanks a lot for your reply. I am using the 10CX150YF780E5G. I tried placing the perst pin on other banks where 1.8V is provided, but I don't know why, the fitter would like to place the perst only on AB11 (please see screenshot.)

The assigned pin for perst (Pin E22) as seen in the screenshot is in bank 2L which I have supplied with 1.8V.

  • CaptainPrice15's avatar
    CaptainPrice15
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    5 months ago

    Hello @Wincent_Altera

    Thanks a lot for your reply. No, I do not need the pin for configuration purpose. I have read the document you provided in your reply and do understand that I have the option to select 1.2V, 1.5V, or 1.8V compatible I/O standard. That being said, as seen in the screenshot I attached in one of my previous replies, the Quartus software doesn't allow me to allocate the nPERST pin to any other IO. It is reluctant that I assign the pin AB11 to it; which is unfortunately not possible for me.

    • Wincent_Altera's avatar
      Wincent_Altera
      Icon for Regular Contributor rankRegular Contributor
      5 months ago

      Ho @CaptainPrice15 ,

      No, I do not need the pin for configuration purpose.
      >> Sorry I missunderstanding your question, thanks for clarified.

      Quartus software doesn't allow me to allocate the nPERST pin to any other IO. It is reluctant that I assign the pin AB11 to it; which is unfortunately not possible for me.
      >> If I go through the device schematic diagram https://cdrdv2-public.intel.com/649849/c10gx-dev-kits-board-a1-release.pdf
      >> AB11 was only PCIe_perst that we have for this device
      >>


      >> As it is only perst for PCIe, we are suggest to use AB11.

      Regards,

      Wincent