重新组织文件结构，方便修改cubemx进行移植或新增/减少功能

Src/dac.c

@@ -0,0 +1,116 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    dac.c
+  * @brief   This file provides code for the configuration
+  *          of the DAC instances.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Includes ------------------------------------------------------------------*/
+#include "dac.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+DAC_HandleTypeDef hdac;
+
+/* DAC init function */
+void MX_DAC_Init(void)
+{
+
+  /* USER CODE BEGIN DAC_Init 0 */
+
+  /* USER CODE END DAC_Init 0 */
+
+  DAC_ChannelConfTypeDef sConfig = {0};
+
+  /* USER CODE BEGIN DAC_Init 1 */
+
+  /* USER CODE END DAC_Init 1 */
+
+  /** DAC Initialization
+  */
+  hdac.Instance = DAC;
+  if (HAL_DAC_Init(&hdac) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  /** DAC channel OUT2 config
+  */
+  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
+  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
+  if (HAL_DAC_ConfigChannel(&hdac, &sConfig, DAC_CHANNEL_2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN DAC_Init 2 */
+
+  /* USER CODE END DAC_Init 2 */
+
+}
+
+void HAL_DAC_MspInit(DAC_HandleTypeDef* dacHandle)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(dacHandle->Instance==DAC)
+  {
+  /* USER CODE BEGIN DAC_MspInit 0 */
+
+  /* USER CODE END DAC_MspInit 0 */
+    /* DAC clock enable */
+    __HAL_RCC_DAC_CLK_ENABLE();
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**DAC GPIO Configuration
+    PA5     ------> DAC_OUT2
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_5;
+    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN DAC_MspInit 1 */
+
+  /* USER CODE END DAC_MspInit 1 */
+  }
+}
+
+void HAL_DAC_MspDeInit(DAC_HandleTypeDef* dacHandle)
+{
+
+  if(dacHandle->Instance==DAC)
+  {
+  /* USER CODE BEGIN DAC_MspDeInit 0 */
+
+  /* USER CODE END DAC_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_DAC_CLK_DISABLE();
+
+    /**DAC GPIO Configuration
+    PA5     ------> DAC_OUT2
+    */
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5);
+
+  /* USER CODE BEGIN DAC_MspDeInit 1 */
+
+  /* USER CODE END DAC_MspDeInit 1 */
+  }
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */