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sssoooaaa's avatar
sssoooaaa
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5 years ago

Stratix IV DIFFOUT

as the photo shows,I want know can DIFFOUT configured as LVDS input？

3 Replies

  • AminT_Intel's avatar
    AminT_Intel
    Icon for Regular Contributor rankRegular Contributor
    5 years ago

    Hello,

    May I know the part number Are you using SERDES IP?

    If yes, there are limitations that you have to follow. If you do not have enough Tx channel you can concert Rx channel to Tx.

    If you are not using SERDES, can check in Quartus if this can be assigned as GPIO and if this GPIO can be assigned as LVDS IO standard.

    • sssoooaaa's avatar
      sssoooaaa
      Icon for New Contributor rankNew Contributor
      5 years ago

      Hello,

      Thanks,AminT.

      I think the question I asked is wrong.

      When designing the board, I connected the input signal to DIFFIO_TX and DIFFIO RX, and finally observed that B has a signal, and DIFFIO_TX has no signal. So I wonder if DIFFIO_TX can be configured as LVDS INPUT like DIFFIO RX, through primitives or other way.

      • AminT_Intel's avatar
        AminT_Intel
        Icon for Regular Contributor rankRegular Contributor
        5 years ago

        Hello,

        Yes, since these pins are available as user I/O pins.