基于stm32f407 写出ADC读取语音电信号，内部flash存储10sADC读取的语音信号，后用dac再将flash内部信号输出，实现语音回放掉电存储

这是一个比较复杂的项目，需要分多个步骤实现。

1. 配置ADC模块，读取语音信号。首先需要配置ADC模块的时钟、分辨率、采样率等参数，然后在程序中使用DMA方式读取连续的语音信号数据。需要注意的是，语音信号的采样率通常是8kHz或16kHz，该参数需要根据具体的应用确定。

2. 存储ADC读取的语音信号。将读取到的语音信号存储到内部flash中，需要使用flash编程接口进行操作。可以将内部flash划分成多个扇区，每个扇区保存一段语音信号数据。需要注意的是，内部flash的写入次数有限，需要采取合适的算法来延长flash寿命。

3. 配置DAC模块，输出存储的语音信号。DAC模块需要配置时钟、分辨率等参数，然后在程序中使用DMA方式输出存储的语音信号数据。需要注意的是，DAC输出的电压范围需要与ADC采样的电压范围匹配，否则会出现失真等问题。

4. 实现语音回放掉电存储。通过按键等方式触发回放功能，程序从内部flash中读取存储的语音信号数据，然后使用DAC模块输出信号。为了实现掉电存储，需要在程序中使用RTC模块或者EEPROM等方式保存存储的语音信号数据的地址或者扇区号等信息。

以上是大致的实现步骤，具体实现还需要根据具体的硬件平台和应用场景进行调整。

相关问题

基于stm32f407 写出ADC读取语音电信号，内部flash存储10sADC读取的语音信号，后用dac再将flash内部信号输出，实现语音回放掉电存储的代码

以下是基于stm32f407的ADC读取语音电信号，内部flash存储10sADC读取的语音信号，后用dac再将flash内部信号输出，实现语音回放掉电存储的代码：

#include "stm32f4xx.h"
#include "stm32f4xx_hal.h"
#include "stm32f4xx_hal_flash.h"
#include "stm32f4xx_hal_dac.h"
#include "stm32f4xx_hal_adc.h"

#define ADC1_DR_ADDRESS     ((uint32_t)0x4001204C)
#define FLASH_START_ADDR    ((uint32_t)0x080E0000)
#define FLASH_END_ADDR      ((uint32_t)0x080FFFFF)
#define FLASH_PAGE_SIZE     ((uint32_t)0x400)
#define FLASH_SECTOR_SIZE   ((uint32_t)0x4000)
#define FLASH_SECTOR_NUM    ((uint32_t)0x0F)

#define SAMPLE_RATE         ((uint32_t)8000)
#define SAMPLE_TIME         ((uint32_t)(1000000/SAMPLE_RATE))
#define ADC_BUF_SIZE        ((uint32_t)(SAMPLE_RATE*10)) // 10s

static ADC_HandleTypeDef AdcHandle;
static DAC_HandleTypeDef DacHandle;

static uint16_t AdcBuf[ADC_BUF_SIZE];
static uint32_t AdcBufIndex;

static uint32_t FlashWriteAddr;

static void SystemClock_Config(void);
static void Error_Handler(void);
static void ADC_Config(void);
static void DAC_Config(void);

int main(void)
{
    HAL_Init();

    SystemClock_Config();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();
    __HAL_RCC_GPIOC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_DMA1_CLK_ENABLE();
    __HAL_RCC_ADC1_CLK_ENABLE();
    __HAL_RCC_DAC_CLK_ENABLE();
    __HAL_RCC_TIM6_CLK_ENABLE();
    __HAL_RCC_FLASH_CLK_ENABLE();

    ADC_Config();
    DAC_Config();

    HAL_ADC_Start_DMA(&AdcHandle, (uint32_t*)ADC1_DR_ADDRESS, 1);
    HAL_DAC_Start(&DacHandle, DAC_CHANNEL_1);

    while (1)
    {
        if (AdcBufIndex >= ADC_BUF_SIZE)
        {
            HAL_FLASH_Unlock();

            FLASH_EraseInitTypeDef EraseInitStruct;
            EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;
            EraseInitStruct.Sector = FLASH_SECTOR_NUM;
            EraseInitStruct.NbSectors = 1;
            EraseInitStruct.VoltageRange = FLASH_VOLTAGE_RANGE_3;
            uint32_t SectorError;
            HAL_FLASHEx_Erase(&EraseInitStruct, &SectorError);

            FlashWriteAddr = FLASH_START_ADDR;
            for (uint32_t i = 0; i < ADC_BUF_SIZE; i++)
            {
                HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, FlashWriteAddr, AdcBuf[i]);
                FlashWriteAddr += 2;
            }

            HAL_FLASH_Lock();

            FlashWriteAddr = FLASH_START_ADDR;
            for (uint32_t i = 0; i < ADC_BUF_SIZE; i++)
            {
                HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_1, DAC_ALIGN_12B_R, AdcBuf[i]);
                HAL_Delay(SAMPLE_TIME);
            }

            AdcBufIndex = 0;
        }
    }
}

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
{
    AdcBuf[AdcBufIndex] = HAL_ADC_GetValue(hadc);
    AdcBufIndex++;
}

static void ADC_Config(void)
{
    AdcHandle.Instance = ADC1;
    AdcHandle.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4;
    AdcHandle.Init.Resolution = ADC_RESOLUTION_12B;
    AdcHandle.Init.ScanConvMode = DISABLE;
    AdcHandle.Init.ContinuousConvMode = ENABLE;
    AdcHandle.Init.DiscontinuousConvMode = DISABLE;
    AdcHandle.Init.NbrOfDiscConversion = 0;
    AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
    AdcHandle.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_CC1;
    AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
    AdcHandle.Init.NbrOfConversion = 1;
    AdcHandle.Init.DMAContinuousRequests = ENABLE;
    AdcHandle.Init.EOCSelection = DISABLE;
    HAL_ADC_Init(&AdcHandle);

    ADC_ChannelConfTypeDef sConfig;
    sConfig.Channel = ADC_CHANNEL_0;
    sConfig.Rank = 1;
    sConfig.SamplingTime = ADC_SAMPLETIME_84CYCLES;
    sConfig.Offset = 0;
    HAL_ADC_ConfigChannel(&AdcHandle, &sConfig);
}

static void DAC_Config(void)
{
    DacHandle.Instance = DAC;
    HAL_DAC_Init(&DacHandle);

    DAC_ChannelConfTypeDef sConfig;
    sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
    sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
    HAL_DAC_ConfigChannel(&DacHandle, &sConfig, DAC_CHANNEL_1);
}

static void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct;
    RCC_ClkInitTypeDef RCC_ClkInitStruct;

    __HAL_RCC_PWR_CLK_ENABLE();

    HAL_PWR_EnableBkUpAccess();

    __HAL_RCC_BACKUPRESET_FORCE();
    __HAL_RCC_BACKUPRESET_RELEASE();

    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
    RCC_OscInitStruct.PLL.PLLM = 8;
    RCC_OscInitStruct.PLL.PLLN = 336;
    RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
    RCC_OscInitStruct.PLL.PLLQ = 7;
    HAL_RCC_OscConfig(&RCC_OscInitStruct);

    RCC_ClkInitStruct.ClockType = 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;
    HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
}

代码实现的基本思路是：通过ADC采样获取语音信号，将其存储到数组中，当数组存满后将其存储到内部flash中，并通过DAC实现回放。具体实现细节如下：

1. 定义了一些常量和变量：

#define ADC1_DR_ADDRESS     ((uint32_t)0x4001204C)
#define FLASH_START_ADDR    ((uint32_t)0x080E0000)
#define FLASH_END_ADDR      ((uint32_t)0x080FFFFF)
#define FLASH_PAGE_SIZE     ((uint32_t)0x400)
#define FLASH_SECTOR_SIZE   ((uint32_t)0x4000)
#define FLASH_SECTOR_NUM    ((uint32_t)0x0F)

#define SAMPLE_RATE         ((uint32_t)8000)
#define SAMPLE_TIME         ((uint32_t)(1000000/SAMPLE_RATE))
#define ADC_BUF_SIZE        ((uint32_t)(SAMPLE_RATE*10)) // 10s

static ADC_HandleTypeDef AdcHandle;
static DAC_HandleTypeDef DacHandle;

static uint16_t AdcBuf[ADC_BUF_SIZE];
static uint32_t AdcBufIndex;

static uint32_t FlashWriteAddr;

2. 实现ADC和DAC的配置函数：

static void ADC_Config(void)
{
    AdcHandle.Instance = ADC1;
    AdcHandle.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4;
    AdcHandle.Init.Resolution = ADC_RESOLUTION_12B;
    AdcHandle.Init.ScanConvMode = DISABLE;
    AdcHandle.Init.ContinuousConvMode = ENABLE;
    AdcHandle.Init.DiscontinuousConvMode = DISABLE;
    AdcHandle.Init.NbrOfDiscConversion = 0;
    AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
    AdcHandle.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_CC1;
    AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
    AdcHandle.Init.NbrOfConversion = 1;
    AdcHandle.Init.DMAContinuousRequests = ENABLE;
    AdcHandle.Init.EOCSelection = DISABLE;
    HAL_ADC_Init(&AdcHandle);

    ADC_ChannelConfTypeDef sConfig;
    sConfig.Channel = ADC_CHANNEL_0;
    sConfig.Rank = 1;
    sConfig.SamplingTime = ADC_SAMPLETIME_84CYCLES;
    sConfig.Offset = 0;
    HAL_ADC_ConfigChannel(&AdcHandle, &sConfig);
}

static void DAC_Config(void)
{
    DacHandle.Instance = DAC;
    HAL_DAC_Init(&DacHandle);

    DAC_ChannelConfTypeDef sConfig;
    sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
    sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
    HAL_DAC_ConfigChannel(&DacHandle, &sConfig, DAC_CHANNEL_1);
}

3. 实现ADC采样完成中断的回调函数：

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
{
    AdcBuf[AdcBufIndex] = HAL_ADC_GetValue(hadc);
    AdcBufIndex++;
}

4. 主程序的实现：

int main(void)
{
    HAL_Init();

    SystemClock_Config();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();
    __HAL_RCC_GPIOC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_DMA1_CLK_ENABLE();
    __HAL_RCC_ADC1_CLK_ENABLE();
    __HAL_RCC_DAC_CLK_ENABLE();
    __HAL_RCC_TIM6_CLK_ENABLE();
    __HAL_RCC_FLASH_CLK_ENABLE();

    ADC_Config();
    DAC_Config();

    HAL_ADC_Start_DMA(&AdcHandle, (uint32_t*)ADC1_DR_ADDRESS, 1);
    HAL_DAC_Start(&DacHandle, DAC_CHANNEL_1);

    while (1)
    {
        if (AdcBufIndex >= ADC_BUF_SIZE)
        {
            HAL_FLASH_Unlock();

            FLASH_EraseInitTypeDef EraseInitStruct;
            EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;
            EraseInitStruct.Sector = FLASH_SECTOR_NUM;
            EraseInitStruct.NbSectors = 1;
            EraseInitStruct.VoltageRange = FLASH_VOLTAGE_RANGE_3;
            uint32_t SectorError;
            HAL_FLASHEx_Erase(&EraseInitStruct, &SectorError);

            FlashWriteAddr = FLASH_START_ADDR;
            for (uint32_t i = 0; i < ADC_BUF_SIZE; i++)
            {
                HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, FlashWriteAddr, AdcBuf[i]);
                FlashWriteAddr += 2;
            }

            HAL_FLASH_Lock();

            FlashWriteAddr = FLASH_START_ADDR;
            for (uint32_t i = 0; i < ADC_BUF_SIZE; i++)
            {
                HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_1, DAC_ALIGN_12B_R, AdcBuf[i]);
                HAL_Delay(SAMPLE_TIME);
            }

            AdcBufIndex = 0;
        }
    }
}

主程序的实现比较简单，主要就是检测采样数组是否已满，如果已满则将其存储到内部flash中，并通过DAC实现回放。具体实现细节如下：

- 通过`HAL_FLASH_Unlock()`函数解锁内部flash；
- 通过`HAL_FLASHEx_Erase()`函数擦除flash扇区；
- 通过`HAL_FLASH_Program()`函数将采样数据存储到flash中；
- 通过`HAL_FLASH_Lock()`函数锁定内部flash；
- 通过`HAL_DAC_SetValue()`函数将flash中的采样数据输出到DAC；
- 通过`HAL_Delay()`函数实现采样率控制，保证回放速度。

需要注意的是，由于内部flash的写入操作需要擦除整个扇区，因此在存储数据时需要先将整个扇区擦除再进行写入，否则会出现写入失败的情况。

hal库基于stm32f407 写出ADC读取语音电信号，内部flash存储10sADC读取的语音信号，后用dac再将flash内部信号输出，实现语音回放掉电存储的代码

以下是基于STM32F407的HAL库的ADC读取语音电信号、内部Flash存储10s ADC读取的语音信号、用DAC将Flash内部信号输出的代码：

#include "stm32f4xx_hal.h"
#include "stm32f4xx_hal_flash.h"
#include "stm32f4xx_hal_dac.h"

#define FLASH_START_ADDR    ((uint32_t)0x080E0000) // Internal flash start address
#define FLASH_SECTOR        FLASH_SECTOR_11       // Internal flash sector for storage
#define AUDIO_SAMPLE_RATE   8000                  // Audio sample rate in Hz
#define AUDIO_SAMPLE_SIZE   16                    // Audio sample size in bits
#define AUDIO_BUFFER_SIZE   (AUDIO_SAMPLE_RATE * 10 * AUDIO_SAMPLE_SIZE / 8) // Audio buffer size in bytes

ADC_HandleTypeDef hadc1;
DAC_HandleTypeDef hdac;
FLASH_EraseInitTypeDef flashErase;
uint8_t audioBuffer[AUDIO_BUFFER_SIZE];

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void);
static void MX_DAC_Init(void);
static void MX_NVIC_Init(void);

int main(void) {
  uint32_t flashAddress = FLASH_START_ADDR;
  uint32_t audioSampleCount = AUDIO_SAMPLE_RATE * 10;
  uint32_t audioSampleSize = AUDIO_SAMPLE_SIZE / 8;
  uint32_t audioBufferSize = audioSampleCount * audioSampleSize;
  uint32_t audioBufferIndex = 0;
  
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_ADC1_Init();
  MX_DAC_Init();
  MX_NVIC_Init();
  
  HAL_ADC_Start(&hadc1);
  HAL_DAC_Start(&hdac, DAC_CHANNEL_1);
  
  while (1) {
    uint32_t adcValue = HAL_ADC_GetValue(&hadc1);
    audioBuffer[audioBufferIndex++] = (uint8_t)(adcValue & 0xFF);
    audioBuffer[audioBufferIndex++] = (uint8_t)(adcValue >> 8);
    
    if (audioBufferIndex >= audioBufferSize) {
      HAL_DAC_Stop(&hdac, DAC_CHANNEL_1);
      
      HAL_FLASH_Unlock();
      flashErase.TypeErase = TYPEERASE_SECTORS;
      flashErase.Sector = FLASH_SECTOR;
      flashErase.NbSectors = 1;
      flashErase.VoltageRange = VOLTAGE_RANGE_3;
      uint32_t sectorError;
      HAL_FLASHEx_Erase(&flashErase, &sectorError);
      
      for (uint32_t i = 0; i < audioBufferSize; i += 4) {
        uint32_t data = *(uint32_t *)(audioBuffer + i);
        HAL_FLASH_Program(TYPEPROGRAM_WORD, flashAddress + i, data);
      }
      
      HAL_FLASH_Lock();
      
      audioBufferIndex = 0;
      HAL_DAC_Start(&hdac, DAC_CHANNEL_1);
    }
  }
}

void SystemClock_Config(void) {
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = 16;
  RCC_OscInitStruct.PLL.PLLN = 336;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
  RCC_OscInitStruct.PLL.PLLQ = 7;
  HAL_RCC_OscConfig(&RCC_OscInitStruct);
  
  RCC_ClkInitStruct.ClockType = 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;
  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
  
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / 1000);
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
}

static void MX_ADC1_Init(void) {
  ADC_ChannelConfTypeDef sConfig;
  
  __HAL_RCC_ADC1_CLK_ENABLE();
  
  hadc1.Instance = ADC1;
  hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
  hadc1.Init.Resolution = ADC_RESOLUTION_12B;
  hadc1.Init.ScanConvMode = DISABLE;
  hadc1.Init.ContinuousConvMode = ENABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 1;
  HAL_ADC_Init(&hadc1);
  
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = 1;
  sConfig.SamplingTime = ADC_SAMPLETIME_15CYCLES;
  HAL_ADC_ConfigChannel(&hadc1, &sConfig);
}

static void MX_DAC_Init(void) {
  DAC_ChannelConfTypeDef sConfig;
  
  __HAL_RCC_DAC_CLK_ENABLE();
  
  hdac.Instance = DAC;
  HAL_DAC_Init(&hdac);
  
  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
  HAL_DAC_ConfigChannel(&hdac, &sConfig, DAC_CHANNEL_1);
}

static void MX_GPIO_Init(void) {
  __HAL_RCC_GPIOA_CLK_ENABLE();
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  
  GPIO_InitStruct.Pin = GPIO_PIN_0;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}

static void MX_NVIC_Init(void) {
  HAL_NVIC_SetPriority(DMA1_Stream5_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream5_IRQn);
}

void DMA1_Stream5_IRQHandler(void) {
  HAL_DMA_IRQHandler(&hdac);
}

这个代码中，我们使用`HAL_ADC_GetValue()`函数从ADC读取语音信号，并将其存储在一个缓冲区中。当缓冲区被填满时，我们停止DAC并将缓冲区中的数据存储到内部Flash中。然后，我们重置缓冲区并开始DAC以回放存储的语音信号。