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Explorer
August 19, 2024
Question

Does STM32H723ZG support High-Speed USB data transfer without using the external PHY?

  • August 19, 2024
  • 3 replies
  • 1610 views

Hi, I've just got the STM32H723ZG Nucleo board and I'm trying to set up a High-Speed 480mbps data transmission. Do I need to buy an external PHY or does the model already support High-Speed USB communication?

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    3 replies

    Graduate II
    August 19, 2024

    As I recollect the USB connection is to the USB_FS side PA12/PA13

    The USB_HS side needs an external PHY via ULPI.

    The ST-LINK/V3 is implemented with an STM32F723 which doesn't need a PHY

     

    https://www.st.com/resource/en/schematic_pack/mb1364-h723zg-e01_schematic.pdf

    https://www.st.com/resource/en/datasheet/stm32h723zg.pdf

    Super User
    August 19, 2024

    It needs an external PHY such as USB3300 for high-speed USB.

    TDK_0-1724085489705.png

     

    Edit: in addition to what @Tesla DeLorean wrote above, the STM32H7S3x8 STM32H7S7x8 also has an internal high speed PHY.

    Explorer
    August 19, 2024

    Are there any other non-H7 models with 2 ADC channels and an embedded High-Speed PHY?

    Super User
    August 19, 2024

    Besides the ones @Tesla DeLorean listed in the F7 series? I don't think so.

    Super User
    August 20, 2024

    Higher-end 'U5 (i.e. higher than 'U57x).

    JW