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STM32H743 not working with USB3300 at High Speed mode

sin1111yi
Visitor

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I am using STM32H743VIT6 with USB3300 to develop a HS USB Device.

But the program is always trapped in USB_CoreReset() at

  do
  {
    count++;

    if (count > HAL_USB_TIMEOUT)
    {
      return HAL_TIMEOUT;
    }
  } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST);
 
I am using a VCP example generated by CubeMX for testing without any other code.
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environment

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