Resolved! UART fired only once - STM32U5 Custom Board
Hello,I'm working with an STM32U5 custom board.I use the LPUART1 to read input with an interrupt as shown below and to write it back on the same LPUART1 : void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { HAL_GPIO_TogglePin (GPIOA, GPIO_...