hdmarx, hdma_rx);/*##-4- Configure the NVIC for DMA ###*//* NVIC configuration for DMA transfer complete interrupt (USARTx_TX) */HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn,0,1);HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);/* NVIC configuration for DMA transfer...