STM32F767 DAC

已于 2022-12-01 22:26:10 修改
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CC 4.0 BY-SA版权
分类专栏： STM32 文章标签： stm32 单片机 物联网
于 2022-05-26 23:31:03 首次发布
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.youkuaiyun.com/smallerlang/article/details/124994918 
/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

#include "delay.h"
#include "bsp_printf.h"
#include "bsp_key.h"
#include "string.h"
#include "usmart.h"
#include "usart.h"
#include "bsp_lcd.h"
//#include "bsp_pcf8574.h"
//#include "bsp_ap3216c.h"
#include "bsp_adc.h"

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc2;

DAC_HandleTypeDef hdac;

I2C_HandleTypeDef hi2c2;

LTDC_HandleTypeDef hltdc;

SDRAM_HandleTypeDef hsdram1;

/* USER CODE BEGIN PV */

uint16_t FBuffer[LCD_WIDTH*LCD_HEIGHT] __attribute__((at(0xC0000000))); 
uint32_t POINT_COLOR;		//画笔颜色
uint32_t BACK_COLOR;  	//背景色 

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_FMC_Init(void);
static void MX_LTDC_Init(void);
static void MX_I2C2_Init(void);
static void MX_ADC2_Init(void);
static void MX_DAC_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

static void Sdram_SendCommand(uint32_t CommandMode, uint32_t CommandTarget, uint32_t AutoRefreshNumber, uint32_t ModeRegisterDefinition)
{
	FMC_SDRAM_CommandTypeDef Command;
	
	Command.AutoRefreshNumber = AutoRefreshNumber;
	Command.CommandMode = CommandMode;
	Command.CommandTarget = CommandTarget;
	Command.ModeRegisterDefinition = ModeRegisterDefinition;
	
	HAL_SDRAM_SendCommand(&hsdram1, &Command, 0);
}

static void Sdram_Init_Sequence(void)
{
	uint32_t ModeRegisterDefinition;
//	uint16_t Mode_WB;
//	uint16_t Mode_Op;
//	uint16_t Mode_CasLatency;
//	uint16_t Mode_Bt;
//	uint16_t Mode_BurstLength;
	
	Sdram_SendCommand(FMC_SDRAM_CMD_CLK_ENABLE, FMC_SDRAM_CMD_TARGET_BANK1, 0, 0);
	
	delay_us(200);
	
	Sdram_SendCommand(FMC_SDRAM_CMD_PALL, FMC_SDRAM_CMD_TARGET_BANK1, 0, 0);
	
	Sdram_SendCommand(FMC_SDRAM_CMD_AUTOREFRESH_MODE, FMC_SDRAM_CMD_TARGET_BANK1, 1, 0);
	
	//SDRAM????2?êy
	#define SDRAM_MODEREG_BURST_LENGTH_1             ((uint16_t)0x0000)
	#define SDRAM_MODEREG_BURST_LENGTH_2             ((uint16_t)0x0001)
	#define SDRAM_MODEREG_BURST_LENGTH_4             ((uint16_t)0x0002)
	#define SDRAM_MODEREG_BURST_LENGTH_8             ((uint16_t)0x0004)
	#define SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL      ((uint16_t)0x0000)
	#define SDRAM_MODEREG_BURST_TYPE_INTERLEAVED     ((uint16_t)0x0008)
	#define SDRAM_MODEREG_CAS_LATENCY_2              ((uint16_t)0x0020)
	#define SDRAM_MODEREG_CAS_LATENCY_3              ((uint16_t)0x0030)
	#define SDRAM_MODEREG_OPERATING_MODE_STANDARD    ((uint16_t)0x0000)
	#define SDRAM_MODEREG_WRITEBURST_MODE_PROGRAMMED ((uint16_t)0x0000)
	#define SDRAM_MODEREG_WRITEBURST_MODE_SINGLE     ((uint16_t)0x0200)

	ModeRegisterDefinition=(uint32_t)SDRAM_MODEREG_BURST_LENGTH_1          |	
              SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL   |	
              SDRAM_MODEREG_CAS_LATENCY_3           |	
              SDRAM_MODEREG_OPERATING_MODE_STANDARD |   
              SDRAM_MODEREG_WRITEBURST_MODE_SINGLE;     

	Sdram_SendCommand(FMC_SDRAM_CMD_LOAD_MODE, FMC_SDRAM_CMD_TARGET_BANK1, 1, ModeRegisterDefinition);
	
	HAL_SDRAM_ProgramRefreshRate(&hsdram1, 824);
}


/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */
	
  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_FMC_Init();
  MX_LTDC_Init();
  MX_I2C2_Init();
  MX_ADC2_Init();
  MX_DAC_Init();
  /* USER CODE BEGIN 2 */
	
	uart_init(115200);		        //串口初始化 
	usmart_dev.init(108); 		    //初始化USMART	
	LCD_Set_Dir(1);
	
	delay_init(216);
	delay_ms(5000);
	
	HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_SET);
	HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);
	
	Sdram_Init_Sequence();
	
	POINT_COLOR=RED;
	BACK_COLOR=WHITE;
	LTDC_Clear(WHITE);

	POINT_COLOR=RED; 
	LCD_ShowString(30,50,200,16,16,"Apollo STM32F4/F7");	
	LCD_ShowString(30,70,200,16,16,"DAC TEST");	
	LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
	LCD_ShowString(30,110,200,16,16,"2016/7/12");	 
	LCD_ShowString(30,130,200,16,16,"WK_UP:+  KEY1:-");	 
	POINT_COLOR=BLUE;//设置字体为蓝色      	 
	LCD_ShowString(30,150,200,16,16,"DAC VAL:");	      
	LCD_ShowString(30,170,200,16,16,"DAC VOL:0.000V");	      
	LCD_ShowString(30,190,200,16,16,"ADC VOL:0.000V"); 	

	POINT_COLOR=BLUE;//设置字体为蓝色	 
	
	uint8_t t=0;	
	uint8_t key;	
	uint16_t dacval=0;
	uint16_t adcx;
	float temp;
	
	HAL_DAC_Start(&hdac, DAC_CHANNEL_1);

	HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_12B_R, dacval);
	//HAL_DAC_Start(&hdac, DAC_CHANNEL_1);

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
		t++;
		key=KEY_Scan(0);			  
		if(key==WKUP_PRES)
		{		 
			if(dacval<4000)dacval+=200;
			HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_12B_R, dacval);//设置DAC值
			//HAL_DAC_Start(&hdac, DAC_CHANNEL_1);
		}else if(key==KEY1_PRES)	
		{
			if(dacval>200)dacval-=200;
			else dacval=0;
			HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_12B_R, dacval);//设置DAC值
			//HAL_DAC_Start(&hdac, DAC_CHANNEL_1);
		}	 
		if(t==10||key==KEY1_PRES||key==WKUP_PRES) 	    //WKUP/KEY1按下了,或者定时时间到了
		{	  
			adcx=HAL_DAC_GetValue(&hdac,DAC_CHANNEL_1);//读取前面设置DAC的值
			LCD_ShowxNum(94,150,adcx,4,16,0);     	    //显示DAC寄存器值
			temp=(float)adcx*(3.3/4096);			    //得到DAC电压值
			adcx=temp;
			LCD_ShowxNum(94,170,temp,1,16,0);     	    //显示电压值整数部分
			temp-=adcx;
			temp*=1000;
			LCD_ShowxNum(110,170,temp,3,16,0X80); 	    //显示电压值的小数部分
			adcx=Get_Adc_Average(10);     //得到ADC转换值	  
			temp=(float)adcx*(3.3/4096);			    //得到ADC电压值
			adcx=temp;
			LCD_ShowxNum(94,190,temp,1,16,0);     	    //显示电压值整数部分
			temp-=adcx;
			temp*=1000;
			LCD_ShowxNum(110,190,temp,3,16,0X80); 	    //显示电压值的小数部分
			HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_1);	   
			t=0;
		}	    
		delay_ms(10);	
		
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};

  /** Configure LSE Drive Capability
  */
  HAL_PWR_EnableBkUpAccess();
  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 25;
  RCC_OscInitStruct.PLL.PLLN = 432;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 9;
  RCC_OscInitStruct.PLL.PLLR = 2;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Activate the Over-Drive mode
  */
  if (HAL_PWREx_EnableOverDrive() != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC|RCC_PERIPHCLK_I2C2;
  PeriphClkInitStruct.PLLSAI.PLLSAIN = 288;
  PeriphClkInitStruct.PLLSAI.PLLSAIR = 4;
  PeriphClkInitStruct.PLLSAI.PLLSAIQ = 4;
  PeriphClkInitStruct.PLLSAI.PLLSAIP = RCC_PLLSAIP_DIV2;
  PeriphClkInitStruct.PLLSAIDivQ = 1;
  PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_8;
  PeriphClkInitStruct.I2c2ClockSelection = RCC_I2C2CLKSOURCE_PCLK1;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Enables the Clock Security System
  */
  HAL_RCC_EnableCSS();
}

/**
  * @brief ADC2 Initialization Function
  * @param None
  * @retval None
  */
static void MX_ADC2_Init(void)
{

  /* USER CODE BEGIN ADC2_Init 0 */

  /* USER CODE END ADC2_Init 0 */

  ADC_ChannelConfTypeDef sConfig = {0};

  /* USER CODE BEGIN ADC2_Init 1 */

  /* USER CODE END ADC2_Init 1 */
  /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
  */
  hadc2.Instance = ADC2;
  hadc2.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
  hadc2.Init.Resolution = ADC_RESOLUTION_12B;
  hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc2.Init.ContinuousConvMode = DISABLE;
  hadc2.Init.DiscontinuousConvMode = DISABLE;
  hadc2.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc2.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc2.Init.NbrOfConversion = 1;
  hadc2.Init.DMAContinuousRequests = DISABLE;
  hadc2.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  if (HAL_ADC_Init(&hadc2) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
  */
  sConfig.Channel = ADC_CHANNEL_5;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
  if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC2_Init 2 */

  /* USER CODE END ADC2_Init 2 */

}

/**
  * @brief DAC Initialization Function
  * @param None
  * @retval None
  */
static 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 OUT1 config
  */
  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_DISABLE;
  if (HAL_DAC_ConfigChannel(&hdac, &sConfig, DAC_CHANNEL_1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN DAC_Init 2 */

  /* USER CODE END DAC_Init 2 */

}

/**
  * @brief I2C2 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2C2_Init(void)
{

  /* USER CODE BEGIN I2C2_Init 0 */

  /* USER CODE END I2C2_Init 0 */

  /* USER CODE BEGIN I2C2_Init 1 */

  /* USER CODE END I2C2_Init 1 */
  hi2c2.Instance = I2C2;
  hi2c2.Init.Timing = 0x40D32A31;
  hi2c2.Init.OwnAddress1 = 0;
  hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c2.Init.OwnAddress2 = 0;
  hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
  hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c2) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Analogue filter
  */
  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Digital filter
  */
  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c2, 0) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN I2C2_Init 2 */

  /* USER CODE END I2C2_Init 2 */

}

/**
  * @brief LTDC Initialization Function
  * @param None
  * @retval None
  */
static void MX_LTDC_Init(void)
{

  /* USER CODE BEGIN LTDC_Init 0 */

  /* USER CODE END LTDC_Init 0 */

  LTDC_LayerCfgTypeDef pLayerCfg = {0};

  /* USER CODE BEGIN LTDC_Init 1 */

  /* USER CODE END LTDC_Init 1 */
  hltdc.Instance = LTDC;
  hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
  hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
  hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
  hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
  hltdc.Init.HorizontalSync = 0;
  hltdc.Init.VerticalSync = 0;
  hltdc.Init.AccumulatedHBP = 40;
  hltdc.Init.AccumulatedVBP = 8;
  hltdc.Init.AccumulatedActiveW = 520;
  hltdc.Init.AccumulatedActiveH = 280;
  hltdc.Init.TotalWidth = 525;
  hltdc.Init.TotalHeigh = 288;
  hltdc.Init.Backcolor.Blue = 0;
  hltdc.Init.Backcolor.Green = 0;
  hltdc.Init.Backcolor.Red = 0;
  if (HAL_LTDC_Init(&hltdc) != HAL_OK)
  {
    Error_Handler();
  }
  pLayerCfg.WindowX0 = 0;
  pLayerCfg.WindowX1 = 480;
  pLayerCfg.WindowY0 = 0;
  pLayerCfg.WindowY1 = 272;
  pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
  pLayerCfg.Alpha = 255;
  pLayerCfg.Alpha0 = 0;
  pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
  pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
  pLayerCfg.FBStartAdress = 0xc0000000;
  pLayerCfg.ImageWidth = 480;
  pLayerCfg.ImageHeight = 272;
  pLayerCfg.Backcolor.Blue = 0;
  pLayerCfg.Backcolor.Green = 0;
  pLayerCfg.Backcolor.Red = 0;
  if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN LTDC_Init 2 */

  /* USER CODE END LTDC_Init 2 */

}

/* FMC initialization function */
static void MX_FMC_Init(void)
{

  /* USER CODE BEGIN FMC_Init 0 */

  /* USER CODE END FMC_Init 0 */

  FMC_SDRAM_TimingTypeDef SdramTiming = {0};

  /* USER CODE BEGIN FMC_Init 1 */

  /* USER CODE END FMC_Init 1 */

  /** Perform the SDRAM1 memory initialization sequence
  */
  hsdram1.Instance = FMC_SDRAM_DEVICE;
  /* hsdram1.Init */
  hsdram1.Init.SDBank = FMC_SDRAM_BANK1;
  hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_9;
  hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_13;
  hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
  hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
  hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
  hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
  hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
  hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_ENABLE;
  hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_0;
  /* SdramTiming */
  SdramTiming.LoadToActiveDelay = 2;
  SdramTiming.ExitSelfRefreshDelay = 8;
  SdramTiming.SelfRefreshTime = 4;
  SdramTiming.RowCycleDelay = 7;
  SdramTiming.WriteRecoveryTime = 3;
  SdramTiming.RPDelay = 2;
  SdramTiming.RCDDelay = 2;

  if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
  {
    Error_Handler( );
  }

  /* USER CODE BEGIN FMC_Init 2 */

  /* USER CODE END FMC_Init 2 */
}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOI_CLK_ENABLE();
  __HAL_RCC_GPIOF_CLK_ENABLE();
  __HAL_RCC_GPIOH_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_GPIOG_CLK_ENABLE();
  __HAL_RCC_GPIOE_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_5, GPIO_PIN_RESET);

  /*Configure GPIO pin : PC13 */
  GPIO_InitStruct.Pin = GPIO_PIN_13;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

  /*Configure GPIO pin : PA0 */
  GPIO_InitStruct.Pin = GPIO_PIN_0;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pins : PH2 PH3 */
  GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);

  /*Configure GPIO pins : PB0 PB1 */
  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /*Configure GPIO pin : PB12 */
  GPIO_InitStruct.Pin = GPIO_PIN_12;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /*Configure GPIO pin : PB5 */
  GPIO_InitStruct.Pin = GPIO_PIN_5;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/


#ifndef __BSP_ADC_H
#define __BSP_ADC_H

#ifdef __cplusplus
extern "C" {
#endif

#include "main.h"

uint16_t Get_Adc_Average(uint8_t times);

#ifdef __cplusplus
}
#endif

#endif /* __BSP_ADC_H */



#include "bsp_adc.h"
#include "delay.h"


//获取指定通道的转换值，取times次,然后平均 
//times:获取次数
//返回值:通道ch的times次转换结果平均值
uint16_t Get_Adc_Average(uint8_t times)
{
	uint32_t temp_val=0;
	uint8_t t;
	uint32_t adc_val;
	
	for(t=0; t<times; t++)
	{
		HAL_ADC_Start(&hadc2);
		while(!__HAL_ADC_GET_FLAG(&hadc2, ADC_SR_EOC));
		adc_val = HAL_ADC_GetValue(&hadc2);
		temp_val+=adc_val;
		delay_ms(5);
	}
	return temp_val/times;
} 





/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file         stm32f7xx_hal_msp.c
  * @brief        This file provides code for the MSP Initialization
  *               and de-Initialization codes.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */

/* USER CODE END TD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN Define */

/* USER CODE END Define */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN Macro */

/* USER CODE END Macro */

/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* External functions --------------------------------------------------------*/
/* USER CODE BEGIN ExternalFunctions */

/* USER CODE END ExternalFunctions */

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */
/**
  * Initializes the Global MSP.
  */
void HAL_MspInit(void)
{
  /* USER CODE BEGIN MspInit 0 */

  /* USER CODE END MspInit 0 */

  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_RCC_SYSCFG_CLK_ENABLE();

  /* System interrupt init*/

  /* USER CODE BEGIN MspInit 1 */

  /* USER CODE END MspInit 1 */
}

/**
* @brief ADC MSP Initialization
* This function configures the hardware resources used in this example
* @param hadc: ADC handle pointer
* @retval None
*/
void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(hadc->Instance==ADC2)
  {
  /* USER CODE BEGIN ADC2_MspInit 0 */

  /* USER CODE END ADC2_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_ADC2_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**ADC2 GPIO Configuration
    PA5     ------> ADC2_IN5
    */
    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 ADC2_MspInit 1 */

  /* USER CODE END ADC2_MspInit 1 */
  }

}

/**
* @brief ADC MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hadc: ADC handle pointer
* @retval None
*/
void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)
{
  if(hadc->Instance==ADC2)
  {
  /* USER CODE BEGIN ADC2_MspDeInit 0 */

  /* USER CODE END ADC2_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_ADC2_CLK_DISABLE();

    /**ADC2 GPIO Configuration
    PA5     ------> ADC2_IN5
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5);

  /* USER CODE BEGIN ADC2_MspDeInit 1 */

  /* USER CODE END ADC2_MspDeInit 1 */
  }

}

/**
* @brief DAC MSP Initialization
* This function configures the hardware resources used in this example
* @param hdac: DAC handle pointer
* @retval None
*/
void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(hdac->Instance==DAC)
  {
  /* USER CODE BEGIN DAC_MspInit 0 */

  /* USER CODE END DAC_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_DAC_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**DAC GPIO Configuration
    PA4     ------> DAC_OUT1
    */
    GPIO_InitStruct.Pin = GPIO_PIN_4;
    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 */
  }

}

/**
* @brief DAC MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hdac: DAC handle pointer
* @retval None
*/
void HAL_DAC_MspDeInit(DAC_HandleTypeDef* hdac)
{
  if(hdac->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
    PA4     ------> DAC_OUT1
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_4);

  /* USER CODE BEGIN DAC_MspDeInit 1 */

  /* USER CODE END DAC_MspDeInit 1 */
  }

}

/**
* @brief I2C MSP Initialization
* This function configures the hardware resources used in this example
* @param hi2c: I2C handle pointer
* @retval None
*/
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(hi2c->Instance==I2C2)
  {
  /* USER CODE BEGIN I2C2_MspInit 0 */

  /* USER CODE END I2C2_MspInit 0 */

    __HAL_RCC_GPIOH_CLK_ENABLE();
    /**I2C2 GPIO Configuration
    PH4     ------> I2C2_SCL
    PH5     ------> I2C2_SDA
    */
    GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);

    /* Peripheral clock enable */
    __HAL_RCC_I2C2_CLK_ENABLE();
  /* USER CODE BEGIN I2C2_MspInit 1 */

  /* USER CODE END I2C2_MspInit 1 */
  }

}

/**
* @brief I2C MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hi2c: I2C handle pointer
* @retval None
*/
void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
{
  if(hi2c->Instance==I2C2)
  {
  /* USER CODE BEGIN I2C2_MspDeInit 0 */

  /* USER CODE END I2C2_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_I2C2_CLK_DISABLE();

    /**I2C2 GPIO Configuration
    PH4     ------> I2C2_SCL
    PH5     ------> I2C2_SDA
    */
    HAL_GPIO_DeInit(GPIOH, GPIO_PIN_4);

    HAL_GPIO_DeInit(GPIOH, GPIO_PIN_5);

  /* USER CODE BEGIN I2C2_MspDeInit 1 */

  /* USER CODE END I2C2_MspDeInit 1 */
  }

}

/**
* @brief LTDC MSP Initialization
* This function configures the hardware resources used in this example
* @param hltdc: LTDC handle pointer
* @retval None
*/
void HAL_LTDC_MspInit(LTDC_HandleTypeDef* hltdc)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(hltdc->Instance==LTDC)
  {
  /* USER CODE BEGIN LTDC_MspInit 0 */

  /* USER CODE END LTDC_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_LTDC_CLK_ENABLE();

    __HAL_RCC_GPIOI_CLK_ENABLE();
    __HAL_RCC_GPIOF_CLK_ENABLE();
    __HAL_RCC_GPIOH_CLK_ENABLE();
    __HAL_RCC_GPIOG_CLK_ENABLE();
    /**LTDC GPIO Configuration
    PI9     ------> LTDC_VSYNC
    PI10     ------> LTDC_HSYNC
    PF10     ------> LTDC_DE
    PH9     ------> LTDC_R3
    PH10     ------> LTDC_R4
    PH11     ------> LTDC_R5
    PH12     ------> LTDC_R6
    PG6     ------> LTDC_R7
    PG7     ------> LTDC_CLK
    PH13     ------> LTDC_G2
    PH14     ------> LTDC_G3
    PH15     ------> LTDC_G4
    PI0     ------> LTDC_G5
    PI1     ------> LTDC_G6
    PI2     ------> LTDC_G7
    PG11     ------> LTDC_B3
    PI4     ------> LTDC_B4
    PI5     ------> LTDC_B5
    PI6     ------> LTDC_B6
    PI7     ------> LTDC_B7
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_0|GPIO_PIN_1
                          |GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6
                          |GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
    HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
    HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_11;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
    HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);

  /* USER CODE BEGIN LTDC_MspInit 1 */

  /* USER CODE END LTDC_MspInit 1 */
  }

}

/**
* @brief LTDC MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hltdc: LTDC handle pointer
* @retval None
*/
void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef* hltdc)
{
  if(hltdc->Instance==LTDC)
  {
  /* USER CODE BEGIN LTDC_MspDeInit 0 */

  /* USER CODE END LTDC_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_LTDC_CLK_DISABLE();

    /**LTDC GPIO Configuration
    PI9     ------> LTDC_VSYNC
    PI10     ------> LTDC_HSYNC
    PF10     ------> LTDC_DE
    PH9     ------> LTDC_R3
    PH10     ------> LTDC_R4
    PH11     ------> LTDC_R5
    PH12     ------> LTDC_R6
    PG6     ------> LTDC_R7
    PG7     ------> LTDC_CLK
    PH13     ------> LTDC_G2
    PH14     ------> LTDC_G3
    PH15     ------> LTDC_G4
    PI0     ------> LTDC_G5
    PI1     ------> LTDC_G6
    PI2     ------> LTDC_G7
    PG11     ------> LTDC_B3
    PI4     ------> LTDC_B4
    PI5     ------> LTDC_B5
    PI6     ------> LTDC_B6
    PI7     ------> LTDC_B7
    */
    HAL_GPIO_DeInit(GPIOI, GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_0|GPIO_PIN_1
                          |GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6
                          |GPIO_PIN_7);

    HAL_GPIO_DeInit(GPIOF, GPIO_PIN_10);

    HAL_GPIO_DeInit(GPIOH, GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);

    HAL_GPIO_DeInit(GPIOG, GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_11);

  /* USER CODE BEGIN LTDC_MspDeInit 1 */

  /* USER CODE END LTDC_MspDeInit 1 */
  }

}

static uint32_t FMC_Initialized = 0;

static void HAL_FMC_MspInit(void){
  /* USER CODE BEGIN FMC_MspInit 0 */

  /* USER CODE END FMC_MspInit 0 */
  GPIO_InitTypeDef GPIO_InitStruct ={0};
  if (FMC_Initialized) {
    return;
  }
  FMC_Initialized = 1;

  /* Peripheral clock enable */
  __HAL_RCC_FMC_CLK_ENABLE();

  /** FMC GPIO Configuration
  PF0   ------> FMC_A0
  PF1   ------> FMC_A1
  PF2   ------> FMC_A2
  PF3   ------> FMC_A3
  PF4   ------> FMC_A4
  PF5   ------> FMC_A5
  PC0   ------> FMC_SDNWE
  PC2   ------> FMC_SDNE0
  PC3   ------> FMC_SDCKE0
  PF11   ------> FMC_SDNRAS
  PF12   ------> FMC_A6
  PF13   ------> FMC_A7
  PF14   ------> FMC_A8
  PF15   ------> FMC_A9
  PG0   ------> FMC_A10
  PG1   ------> FMC_A11
  PE7   ------> FMC_D4
  PE8   ------> FMC_D5
  PE9   ------> FMC_D6
  PE10   ------> FMC_D7
  PE11   ------> FMC_D8
  PE12   ------> FMC_D9
  PE13   ------> FMC_D10
  PE14   ------> FMC_D11
  PE15   ------> FMC_D12
  PD8   ------> FMC_D13
  PD9   ------> FMC_D14
  PD10   ------> FMC_D15
  PD14   ------> FMC_D0
  PD15   ------> FMC_D1
  PG2   ------> FMC_A12
  PG4   ------> FMC_BA0
  PG5   ------> FMC_BA1
  PG8   ------> FMC_SDCLK
  PD0   ------> FMC_D2
  PD1   ------> FMC_D3
  PG15   ------> FMC_SDNCAS
  PE0   ------> FMC_NBL0
  PE1   ------> FMC_NBL1
  */
  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_11|GPIO_PIN_12
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
  HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_2|GPIO_PIN_3;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_4
                          |GPIO_PIN_5|GPIO_PIN_8|GPIO_PIN_15;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
  HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10
                          |GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
  HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_14
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
  HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

  /* USER CODE BEGIN FMC_MspInit 1 */

  /* USER CODE END FMC_MspInit 1 */
}

void HAL_SDRAM_MspInit(SDRAM_HandleTypeDef* hsdram){
  /* USER CODE BEGIN SDRAM_MspInit 0 */

  /* USER CODE END SDRAM_MspInit 0 */
  HAL_FMC_MspInit();
  /* USER CODE BEGIN SDRAM_MspInit 1 */

  /* USER CODE END SDRAM_MspInit 1 */
}

static uint32_t FMC_DeInitialized = 0;

static void HAL_FMC_MspDeInit(void){
  /* USER CODE BEGIN FMC_MspDeInit 0 */

  /* USER CODE END FMC_MspDeInit 0 */
  if (FMC_DeInitialized) {
    return;
  }
  FMC_DeInitialized = 1;
  /* Peripheral clock enable */
  __HAL_RCC_FMC_CLK_DISABLE();

  /** FMC GPIO Configuration
  PF0   ------> FMC_A0
  PF1   ------> FMC_A1
  PF2   ------> FMC_A2
  PF3   ------> FMC_A3
  PF4   ------> FMC_A4
  PF5   ------> FMC_A5
  PC0   ------> FMC_SDNWE
  PC2   ------> FMC_SDNE0
  PC3   ------> FMC_SDCKE0
  PF11   ------> FMC_SDNRAS
  PF12   ------> FMC_A6
  PF13   ------> FMC_A7
  PF14   ------> FMC_A8
  PF15   ------> FMC_A9
  PG0   ------> FMC_A10
  PG1   ------> FMC_A11
  PE7   ------> FMC_D4
  PE8   ------> FMC_D5
  PE9   ------> FMC_D6
  PE10   ------> FMC_D7
  PE11   ------> FMC_D8
  PE12   ------> FMC_D9
  PE13   ------> FMC_D10
  PE14   ------> FMC_D11
  PE15   ------> FMC_D12
  PD8   ------> FMC_D13
  PD9   ------> FMC_D14
  PD10   ------> FMC_D15
  PD14   ------> FMC_D0
  PD15   ------> FMC_D1
  PG2   ------> FMC_A12
  PG4   ------> FMC_BA0
  PG5   ------> FMC_BA1
  PG8   ------> FMC_SDCLK
  PD0   ------> FMC_D2
  PD1   ------> FMC_D3
  PG15   ------> FMC_SDNCAS
  PE0   ------> FMC_NBL0
  PE1   ------> FMC_NBL1
  */
  HAL_GPIO_DeInit(GPIOF, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_11|GPIO_PIN_12
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);

  HAL_GPIO_DeInit(GPIOC, GPIO_PIN_0|GPIO_PIN_2|GPIO_PIN_3);

  HAL_GPIO_DeInit(GPIOG, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_4
                          |GPIO_PIN_5|GPIO_PIN_8|GPIO_PIN_15);

  HAL_GPIO_DeInit(GPIOE, GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10
                          |GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1);

  HAL_GPIO_DeInit(GPIOD, GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_14
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1);

  /* USER CODE BEGIN FMC_MspDeInit 1 */

  /* USER CODE END FMC_MspDeInit 1 */
}

void HAL_SDRAM_MspDeInit(SDRAM_HandleTypeDef* hsdram){
  /* USER CODE BEGIN SDRAM_MspDeInit 0 */

  /* USER CODE END SDRAM_MspDeInit 0 */
  HAL_FMC_MspDeInit();
  /* USER CODE BEGIN SDRAM_MspDeInit 1 */

  /* USER CODE END SDRAM_MspDeInit 1 */
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

总结：
1、
在这里插入图片描述
2、
在这里插入图片描述
3、
在这里插入图片描述

4、如果DAC_OutputBuffer设置为DAC_OUTPUTBUFFER_ENABLE，当DAC设置为0时输出电压约为0.05V，如果DAC_OutputBuffer设置为DAC_OUTPUTBUFFER_DISABLE，当DAC设置为0时输出电压约为0
5、如果DAC_Trigger设置为DAC_TRIGGER_SOFTWARE，HAL_DAC_SetValue函数设置DAC电压后应添加HAL_DAC_Start启动一次软件触发，如果DAC_Trigger设置为DAC_TRIGGER_NONE，只需要在初始化后添加HAL_DAC_Start函数

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DAC的基本工作原理是根据输入的数字信号值，在一定的时间间隔内产生相应的模拟输出。RC低通滤波器是一种常见的模拟电路，它由电阻R和电容C组成，主要功能是允许低频信号顺利通过，同时衰减或抑制高频信号，起到平滑输出电压、减少噪声的作用。则是为DAC的模拟部分提供的工作电压，其电压范围要求在2.4V至3.6V之间，确保DAC能在指定电压范围内正常工作并提供准确的模拟信号输出。总之，DAC是数字电路与模拟电路之间的重要接口，它实现了数字信号到模拟信号的转换，为数字系统与模拟系统之间的数据交互提供了基础。
STM32开发记录三： 硬件IIC调试（STHC3温湿度传感器）
xqw19891201的博客
09-21 1552
基于STM32G473调试硬件IIC，从设备为STHC3温湿度传感器。
STM32H7系列使用硬件IIC读写EEPROM（HAL库配置源码）
qq_33734309的博客
03-03 4366
STM32H7系列使用硬件IIC读写EEPROM（HAL库配置源码）
实验21 DAC实验_DAC_stm32f429dac_
10-03
在本实验中，我们将深入探讨如何使用STM32F429微控制器的数字模拟转换器（DAC）功能。STM32F429是一款高性能的Cortex-M4内核微控制器，内置了多个DAC通道，可以将数字信号转换为模拟电压输出，非常适合于音频处理、...
STM32F407 DAC + DMA + Timer 实现任意波形发生器
07-28
学习STM32内部DAC的使用 硬件资源: 1,DS0(连接在PF9) 2,串口1(波特率:115200,PA9/PA10连接在板载USB转串口芯片CH340上面) 3,ALIENTEK 2.8/3.5/4.3/7寸TFTLCD模块(通过FSMC驱动,FSMC_NE4接LCD片选/A6接RS) 4,...
dac.rar_stm32f051_stm32f051 dac_stm32f051 dac_stm32f051的dac
07-15
本篇文章将深入探讨STM32F051的DAC功能及其在实际应用中的使用方法。 数字模拟转换器（DAC）是微控制器中一个重要的组成部分，它的主要作用是将数字信号转化为模拟信号。在STM32F051中，内置了一个12位的DAC，可以...
STM32F767芯片手册
06-20
STM32F767是ST公司推出的一款基于ARM Cortex-M7内核的高性能微控制器（MCU），具有浮点运算单元（FPU）和数字信号处理器（DSP）指令集。该芯片支持高达2MB的Flash和512+16+4KB的RAM，提供强大的处理能力和存储容量，...
STM32F767实现DAC驱动【支持STM32F7系列单片机_HAL库驱动】.zip
12-26
本项目主要关注STM32F767在数字模拟转换器（DAC）驱动方面的实现，使用HAL库进行驱动程序设计，方便用户在STM32F7系列单片机上进行调测和移植。 1. DAC概述： 数字模拟转换器（Digital-to-Analog Converter, DAC）...
总结一下首次使用HAL库STM32f030硬件IIC从机中断收发
stonenth的博客
01-12 1万+
硬件为I2C_ADDRESSINGMODE_7BIT时的从机地址时，从机的地址需要左移一位，最低为表示读或者写。从机的HAL库同时配置了接收和发送，从机需要等待随时更新用户配置，接收到用户配置后同时打开用户数据发送中断。使用地址中断，在地址回调函数里面判断收发，在调用对应函数的，可以同时中断收发，地址在下面，写的很详细。好了，发送完成了，然后就是比较坑的了，完成后中断是会被关闭的。在这个函数里面，有接收中断，地址终端，监听中断。手上的项目是一主机，七个从机，从机使用中段收发。这个网上写的很详细。
STM32 IIC双机通信—— HAL库硬件IIC版
晴树的专栏
12-09 7977
1，stm32的I2C总线既可以作为主模式也可以作为从模式 作为主模式和作为从模式在CUBE中的配置是一样的，只是i2c设备的地址不一样 Timing是时序，是在配置的时候生成的，不需要修改 当总线的频率设置为100KHZ的时候，rise time 和fall time 要设置为100ns ownAddress就是指的i2c总线的设备地址，该地址可以选择7bit 或者10bit 2，测试的时候使用两块开发板，一块作为master另一块作为slave，主机向从机发送"I2C"，当..
STM32F0 HAL库 I2C 从机配置
rzhangshan的博客
03-06 4714
参考链接：http://blog.sina.com.cn/s/blog_95cc46f40102yika.html STM32 I2C从机中断模式测试可用；可在此基础上修改代码使用； 一、STM32CubeMX生成初始化配置函数（包含了SCL/SDA引脚配置） /** * @brief I2C1 Initialization Function * @param None * @retv...
STM32 HAL库硬件IIC实现CAT24C128通讯
BlackNigg的博客
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1. 使用STM32CubeMX生成I2C初始化代码。
STM32实现硬件IIC通信（HAL库）
冬瓜的博客
07-04 5877
最近正在DIY一款智能电池，需要使用STM32F030F4P6和TI的电池管理芯片BQ40Z50进行SMBUS通信。SMBUS本质上就是IIC通信，项目用到STM32CubeMX+HAL库，使用硬件IIC完成MCU对芯片的寄存器数据的读取和改写。整篇博客主要是梳理一下IIC的通信流程，并记录一下项目实现的过程，如有错的地方，欢迎各位读者批评指正。
stm32的I2C主从模式
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滴水藏海
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1，stm32的I2C总线既可以作为主模式也可以作为从模式 作为主模式和作为从模式在CUBE中的配置是一样的，只是i2c设备的地址不一样 Timing是时序，是在配置的时候生成的，不需要修改 当总线的频率设置为100KHZ的时候，rise time 和fall time 要设置为100ns ownAddress就是指的i2c总线的设备地址，该地址可以选择7b
STM32HAL库读取BQ40Z80硬件I2C+freertos的死锁问题解决
yybyg的博客
08-01 932
STM32HAL库硬件I2C加上freertos有个致命的问题，一旦在硬件I2C的读取过程中出现调度其他任务的情况就会出现死锁。下面对该问题采取了两种方式，一种是再读取过程中关闭调度，但是仍然有几率死锁。第二种是对I2C的GPIO拉低再拉高,并且重置I2C的初始化。经过验证，两种方式一起上的效果是最好的。
STM32CbueMX之I2C HAL_ERROR 和 DMA 不启动
sudaroot的博客
12-31 6678
如果是使用STM32CbueMX生成I2C 的代码，使用 I2C 读写 过程会出现HAL_ERROR。 这个时候一般有两种选择， 方式一：是选择IO模拟I2C； 方式二：是排查代码问题解决硬件I2C。 使用DMA的时候有时候DMA启动失败，往往这是时候我们就方式使用DMA了，转而使用更低效率的方式发接数据。 方式一：问度娘。 方式二...
铁电存储器（FM24W256）I2C读写驱动（3）：基于HAL库实现硬件I2C读写
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kevin1499的博客
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铁电存储器（FM24W256）I2C读写驱动（3）：基于HAL库实现硬件I2C读写。
STM32F767的PWM DAC实验原理及应用
资源摘要信息: "PWM DAC实验DAC_STM32F767基于STM32F767" 本次分享的知识点主要围绕如何在STM32F767微控制器上实现PWM DAC实验。STM32F767是ST公司生产的一款高性能ARM Cortex-M7核心的微控制器，具有丰富的外设和...
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