I have followed an example found on the web to get DMA RX usart2 running.I had activate RX DMA, global interrupt in cubmx project.In the main I have :HAL_UARTEx_ReceiveToIdle_DMA(&huart2, RxBuf, RxBuf_SIZE);
__HAL_DMA_DISABLE_IT(&hdma_usart2_rx, DM...