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MSP-EXP432E401Y: USB ULPI PHY evaluation

Part Number: MSP-EXP432E401Y

I want to validate a USB ULPI PHY with the MSP432E4 LaunchPad and SDK USBLIB examples (usb_msc_host, usb_mouse_device, etc.).

1. Which ULPI PHYs have been tested with the MSP432E4?  Any specific PHY board tested with the LaunchPad?

2. What changes need to be made to run the USBLIB examples with an external USB PHY in FS & HS modes (I assume TI RTOS is recommended)?

Any additional information on using an external USB PHY on the LauchPad would be appreciated, thanks!

  • Hi Paul:

    1. There is one I remember testing on, unfortunately I can't find the exact model or board that it was. It would take me a while to go back and dig it up. But there should be a few other valid ULPI PHY options.
      EVM or Chip

    2. We have a really comprehensive guide with Table of Contents on how to add stuff like external USB PHY in FS & HS mode.
      Specifically for your question, it's simple, this is the only line you need to add: (Use USBDCDFeatureSet for device, USBHCDFeatureSet for host).
      For quick evaluation I'd recommend NoRTOS since it minimizes the number of variables. But if an RTOS is needed, both TI-RTOS and FreeRTOS work fine.

    Hope that helps!

    Wallace

  • Thanks for the quick reply!

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