How can the external ULPI USB transceiver chip (U4 - USB3320C) on the STM32H747I-DISCO board fail and cause a permanent short circuit?
I tried to configure the MCU as a mass storage device using Cubemx without success. The board was connected to the computer with CN1 and CN2 at the same time.I confirmed that the short was caused by U4 by removing it. After removal of U4 the current ...