On the custom board of our product, we have an ARM MCU which communicate with the TX2, the MCU connects to the ttyTHS0 (UART0) of the TX2. When they are connected, the TX2 stops at the boot stage (displaying NVIDIA logo). If we disconnect them by removing the cable between the MCU and the UART0 of the TX2, the TX2 can boot successfully.
The Jetpack is 4.2.2, L4T revision is R32.
Can you give me advice on this?