Add USART DMA in Normal mode from CubeMX

Core/Inc/stm32f4xx_it.h

@@ -56,6 +56,7 @@ void SDIO_IRQHandler(void);
 void TIM6_DAC_IRQHandler(void);
 void DMA2_Stream3_IRQHandler(void);
 void DMA2_Stream6_IRQHandler(void);
+void DMA2_Stream7_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */

Core/Src/canlog.c

@@ -121,7 +121,6 @@ void vCANListener(void *argument)
     {
           // J1939 decoding
 
-          // RELAY: Push to the UART queue
       osMessageQueuePut(xUARTQueue, &message, 0U, 0U);
     }
   }

Core/Src/main.c

@@ -46,6 +46,7 @@ DMA_HandleTypeDef hdma_sdio_rx;
 DMA_HandleTypeDef hdma_sdio_tx;
 
 UART_HandleTypeDef huart1;
+DMA_HandleTypeDef hdma_usart1_tx;
 
 /* USER CODE BEGIN PV */
 LED_Config led_can1 = {GPIOB, GPIO_PIN_5};
@@ -386,7 +387,7 @@ static void MX_USART1_UART_Init(void)
 
   /* USER CODE END USART1_Init 1 */
   huart1.Instance = USART1;
-  huart1.Init.BaudRate = 1152000;
+  huart1.Init.BaudRate = 115200;
   huart1.Init.WordLength = UART_WORDLENGTH_8B;
   huart1.Init.StopBits = UART_STOPBITS_1;
   huart1.Init.Parity = UART_PARITY_NONE;
@@ -419,6 +420,9 @@ static void MX_DMA_Init(void)
   /* DMA2_Stream6_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(DMA2_Stream6_IRQn, 5, 0);
   HAL_NVIC_EnableIRQ(DMA2_Stream6_IRQn);
+  /* DMA2_Stream7_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(DMA2_Stream7_IRQn, 5, 0);
+  HAL_NVIC_EnableIRQ(DMA2_Stream7_IRQn);
 
   /* USER CODE BEGIN MX_DMA_Init 1 */
   DEBUG_PRINT("DMA initialized!\r\n");

Core/Src/stm32f4xx_hal_msp.c

@@ -26,6 +26,8 @@ extern DMA_HandleTypeDef hdma_sdio_rx;
 
 extern DMA_HandleTypeDef hdma_sdio_tx;
 
+extern DMA_HandleTypeDef hdma_usart1_tx;
+
 /* Private typedef -----------------------------------------------------------*/
 /* USER CODE BEGIN TD */
 
@@ -371,6 +373,25 @@ void HAL_UART_MspInit(UART_HandleTypeDef* huart)
     GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
+    /* USART1 DMA Init */
+    /* USART1_TX Init */
+    hdma_usart1_tx.Instance = DMA2_Stream7;
+    hdma_usart1_tx.Init.Channel = DMA_CHANNEL_4;
+    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
+    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
+    hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(huart,hdmatx,hdma_usart1_tx);
+
     /* USER CODE BEGIN USART1_MspInit 1 */
 
     /* USER CODE END USART1_MspInit 1 */
@@ -401,6 +422,8 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
     */
     HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
 
+    /* USART1 DMA DeInit */
+    HAL_DMA_DeInit(huart->hdmatx);
     /* USER CODE BEGIN USART1_MspDeInit 1 */
 
     /* USER CODE END USART1_MspDeInit 1 */

Core/Src/stm32f4xx_it.c

@@ -58,6 +58,7 @@
 extern DMA_HandleTypeDef hdma_sdio_rx;
 extern DMA_HandleTypeDef hdma_sdio_tx;
 extern SD_HandleTypeDef hsd;
+extern DMA_HandleTypeDef hdma_usart1_tx;
 extern TIM_HandleTypeDef htim6;
 
 /* USER CODE BEGIN EV */
@@ -218,6 +219,20 @@ void DMA2_Stream6_IRQHandler(void)
   /* USER CODE END DMA2_Stream6_IRQn 1 */
 }
 
+/**
+  * @brief This function handles DMA2 stream7 global interrupt.
+  */
+void DMA2_Stream7_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA2_Stream7_IRQn 0 */
+
+  /* USER CODE END DMA2_Stream7_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_usart1_tx);
+  /* USER CODE BEGIN DMA2_Stream7_IRQn 1 */
+
+  /* USER CODE END DMA2_Stream7_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */

can_logger.ioc

@@ -20,7 +20,8 @@ CAN2.Mode=CAN_MODE_SILENT
 CAN2.Prescaler=8
 Dma.Request0=SDIO_RX
 Dma.Request1=SDIO_TX
-Dma.RequestsNb=2
+Dma.Request2=USART1_TX
+Dma.RequestsNb=3
 Dma.SDIO_RX.0.Direction=DMA_PERIPH_TO_MEMORY
 Dma.SDIO_RX.0.FIFOMode=DMA_FIFOMODE_ENABLE
 Dma.SDIO_RX.0.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
@@ -47,6 +48,16 @@ Dma.SDIO_TX.1.PeriphDataAlignment=DMA_PDATAALIGN_WORD
 Dma.SDIO_TX.1.PeriphInc=DMA_PINC_DISABLE
 Dma.SDIO_TX.1.Priority=DMA_PRIORITY_LOW
 Dma.SDIO_TX.1.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
+Dma.USART1_TX.2.Direction=DMA_MEMORY_TO_PERIPH
+Dma.USART1_TX.2.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.USART1_TX.2.Instance=DMA2_Stream7
+Dma.USART1_TX.2.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART1_TX.2.MemInc=DMA_MINC_ENABLE
+Dma.USART1_TX.2.Mode=DMA_NORMAL
+Dma.USART1_TX.2.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART1_TX.2.PeriphInc=DMA_PINC_DISABLE
+Dma.USART1_TX.2.Priority=DMA_PRIORITY_LOW
+Dma.USART1_TX.2.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
 FREERTOS.FootprintOK=true
 FREERTOS.IPParameters=Tasks01,configUSE_NEWLIB_REENTRANT,FootprintOK
 FREERTOS.Tasks01=DefaultTask,49,128,can_listen,Default,NULL,Dynamic,NULL,NULL
@@ -96,6 +107,7 @@ MxDb.Version=DB.6.0.170
 NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.DMA2_Stream3_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DMA2_Stream6_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
+NVIC.DMA2_Stream7_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.ForceEnableDMAVector=true
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false