From 26db5e14522173c274ac954c867d2ebe5d8ca3ac Mon Sep 17 00:00:00 2001
From: yincheng.zhong <634916154@qq.com>
Date: 星期二, 18 十一月 2025 19:43:53 +0800
Subject: [PATCH] python和STM32数据双向调通，准备下一阶段GPS测试。

---
 STM32H743/Core/Src/stm32h7xx_hal_msp.c |  102 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 102 insertions(+), 0 deletions(-)

diff --git a/STM32H743/Core/Src/stm32h7xx_hal_msp.c b/STM32H743/Core/Src/stm32h7xx_hal_msp.c
index 3f936ef..1be4292 100644
--- a/STM32H743/Core/Src/stm32h7xx_hal_msp.c
+++ b/STM32H743/Core/Src/stm32h7xx_hal_msp.c
@@ -25,6 +25,10 @@
 /* USER CODE END Includes */
 extern DMA_HandleTypeDef hdma_uart4_rx;
 
+extern DMA_HandleTypeDef hdma_uart5_rx;
+
+extern DMA_HandleTypeDef hdma_uart5_tx;
+
 extern DMA_HandleTypeDef hdma_usart1_rx;
 
 extern DMA_HandleTypeDef hdma_usart1_tx;
@@ -381,6 +385,80 @@
 
     /* USER CODE END UART4_MspInit 1 */
   }
+  else if(huart->Instance==UART5)
+  {
+    /* USER CODE BEGIN UART5_MspInit 0 */
+
+    /* USER CODE END UART5_MspInit 0 */
+
+  /** Initializes the peripherals clock
+  */
+    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_UART5;
+    PeriphClkInitStruct.Usart234578ClockSelection = RCC_USART234578CLKSOURCE_D2PCLK1;
+    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    /* Peripheral clock enable */
+    __HAL_RCC_UART5_CLK_ENABLE();
+
+    __HAL_RCC_GPIOB_CLK_ENABLE();
+    /**UART5 GPIO Configuration
+    PB12     ------> UART5_RX
+    PB13     ------> UART5_TX
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_13;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    GPIO_InitStruct.Alternate = GPIO_AF14_UART5;
+    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+    /* UART5 DMA Init */
+    /* UART5_RX Init */
+    hdma_uart5_rx.Instance = DMA2_Stream1;
+    hdma_uart5_rx.Init.Request = DMA_REQUEST_UART5_RX;
+    hdma_uart5_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
+    hdma_uart5_rx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_uart5_rx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_uart5_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_uart5_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_uart5_rx.Init.Mode = DMA_CIRCULAR;
+    hdma_uart5_rx.Init.Priority = DMA_PRIORITY_LOW;
+    hdma_uart5_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+    if (HAL_DMA_Init(&hdma_uart5_rx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(huart,hdmarx,hdma_uart5_rx);
+
+    /* UART5_TX Init */
+    hdma_uart5_tx.Instance = DMA2_Stream2;
+    hdma_uart5_tx.Init.Request = DMA_REQUEST_UART5_TX;
+    hdma_uart5_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_uart5_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_uart5_tx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_uart5_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_uart5_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_uart5_tx.Init.Mode = DMA_NORMAL;
+    hdma_uart5_tx.Init.Priority = DMA_PRIORITY_LOW;
+    hdma_uart5_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+    if (HAL_DMA_Init(&hdma_uart5_tx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(huart,hdmatx,hdma_uart5_tx);
+
+    /* UART5 interrupt Init */
+    HAL_NVIC_SetPriority(UART5_IRQn, 5, 0);
+    HAL_NVIC_EnableIRQ(UART5_IRQn);
+    /* USER CODE BEGIN UART5_MspInit 1 */
+
+    /* USER CODE END UART5_MspInit 1 */
+  }
   else if(huart->Instance==USART1)
   {
     /* USER CODE BEGIN USART1_MspInit 0 */
@@ -711,6 +789,30 @@
 
     /* USER CODE END UART4_MspDeInit 1 */
   }
+  else if(huart->Instance==UART5)
+  {
+    /* USER CODE BEGIN UART5_MspDeInit 0 */
+
+    /* USER CODE END UART5_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_UART5_CLK_DISABLE();
+
+    /**UART5 GPIO Configuration
+    PB12     ------> UART5_RX
+    PB13     ------> UART5_TX
+    */
+    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_12|GPIO_PIN_13);
+
+    /* UART5 DMA DeInit */
+    HAL_DMA_DeInit(huart->hdmarx);
+    HAL_DMA_DeInit(huart->hdmatx);
+
+    /* UART5 interrupt DeInit */
+    HAL_NVIC_DisableIRQ(UART5_IRQn);
+    /* USER CODE BEGIN UART5_MspDeInit 1 */
+
+    /* USER CODE END UART5_MspDeInit 1 */
+  }
   else if(huart->Instance==USART1)
   {
     /* USER CODE BEGIN USART1_MspDeInit 0 */

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