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MCrew.1
Visitor II
September 30, 2020
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Can you use internal GPIO pull up for USB DP and USB DM?

  • September 30, 2020
  • 1 reply
  • 640 views

I am using the STM32L496VGT (100 pin) MCU and using USB_OTG_FS_DP and USB_OTG_FS_DM for data transmission. If I set the GPIO pull up for these pins (PA11 and PA12), will that act as the required pull up for the USB?

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    Best answer by waclawek.jan

    The 'L4 already has the USB pullup on DP, read the datasheet. It does not need pullup on DM as it can't work as a Low-Speed device.

    JW

    1 reply

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    waclawek.janAnswer
    Super User
    September 30, 2020

    The 'L4 already has the USB pullup on DP, read the datasheet. It does not need pullup on DM as it can't work as a Low-Speed device.

    JW

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