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USB5744 Hub design - polarity swapping

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  • USB5744 Hub design - polarity swapping

    Hello, I designed USB hub with USB5744. My hub working but I think that it is working only in USB2.0 speed when I testing speeds.
    I am confused about TX, RX polarity swapping. If I didn't do a mistake...
    I don't use any custom configuration via SPI flash memory or SMBUS.
    Click image for larger version  Name:	Screenshot 2023-09-10 202444.png Views:	14 Size:	46.5 KB ID:	22389

    I swap polarity of the RX line only on the upstream USB connector. Could I have done it? Could I swap only RX lines and TX lines remained unchanged?
    Click image for larger version  Name:	Screenshot 2023-09-10 202624.png Views:	10 Size:	138.8 KB ID:	22390


    Thank you,
    Martin
    Last edited by MLc; 09-12-2023, 10:29 PM.
  • Answer selected by qdrives at 09-12-2023, 01:22 PM.

    EDIT: I solved the problem. There was problem with my USB C-C cable.
    Admin you can delete this post...

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    • #2
      EDIT: I solved the problem. There was problem with my USB C-C cable.
      Admin you can delete this post...

      Comment

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