Resolved! What is I/O structure of OTG_USB_DP&OTG_USB_DM pins for STM32U595VJT6?
Hello, ST experts It seems that OTG_USB_DP pin had some problems when this pin is forced to be set to GPIO when connected to USB host. The resistance between this pin and GND is serveral mega Ohm before OTG_USB_DP is forced to be a GPIO. And then it ...