stm32f103的内部Flash读写，double数值读写

/* USER CODE BEGIN Header */

/**

  ******************************************************************************

  * [url=home.php?mod=space&uid=288409]@file[/url]           : main.c

  * [url=home.php?mod=space&uid=247401]@brief[/url]          : Main program body

  ******************************************************************************

  * @attention

  *

  * Copyright (c) 2022 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 "main.h"

#include "rtc.h"

#include "usart.h"

#include "gpio.h"

 

/* Private includes ----------------------------------------------------------*/

/* USER CODE BEGIN Includes */

#include "stdio.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 ---------------------------------------------------------*/

 

/* USER CODE BEGIN PV */

uint8_t rxdata1;

/* USER CODE END PV */

 

/* Private function prototypes -----------------------------------------------*/

void SystemClock_Config(void);

/* USER CODE BEGIN PFP */

#ifdef __GNUC__                                                                        //串口重定向

#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)

#else

#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)

#endif

PUTCHAR_PROTOTYPE

{

    HAL_UART_Transmit(&huart1 , (uint8_t *)&ch, 1, 0xFFFF);

    return ch;

}

 

/* USER CODE END PFP */

 

/* Private user code ---------------------------------------------------------*/

/* USER CODE BEGIN 0 */

 

//发字符串函数

uint8_t Usart_SendString(const uint8_t* str)

{

 

        while(*str!='\0')

        {

                if(HAL_UART_Transmit(&huart1, (uint8_t *)str, 1, 1000)!=HAL_OK)

                {

                        return 0;  //发送失败

                }

                str++;

        }

        return 1;  //发送成功

}

 

void  HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)

{

        if (huart->Instance == USART1){

        /* 将接收成功的数据通过串口发出*/

        //HAL_UART_Transmit_IT(&huart1,&rxdata1, 1); //不要在此处用中断式发送，不然会丢失信息

        HAL_UART_Transmit(&huart1,&rxdata1, 1, 0xffff);//查询法发

        HAL_UART_Receive_IT(&huart1, &rxdata1, 1);    //重新启，接收1个数

        }

 

}

 

// 芯片的Flash为64K，最后一页Flash的首地址为0x0x0800FC00，每页1Kb。

#define FLASH_FOR_EEPROM_ADDRESS                0x0800FC00

uint32_t WriteFlashData[3] = {0x12345678,0x22222222,0x33333333};//数据

uint32_t addr = 0x0800FC00; // 芯片的Flash为64K，最后一页Flash的首地址为0x0x0800FC00，每页1Kb。

/*FLASH写入程序*/

void WriteFlashTest(uint32_t L,uint32_t Data[],uint32_t addr)

{

        uint32_t i=0;

        /* 1/4解锁FLASH*/

        HAL_FLASH_Unlock();

        /* 2/4擦除FLASH*/

        /*初始化FLASH_EraseInitTypeDef*/

        /*擦除方式页擦除FLASH_TYPEERASE_PAGES，块擦除FLASH_TYPEERASE_MASSERASE*/

        /*擦除页数*/

        /*擦除地址*/

        FLASH_EraseInitTypeDef FlashSet;

        FlashSet.TypeErase = FLASH_TYPEERASE_PAGES;

        FlashSet.PageAddress = addr;

        FlashSet.NbPages = 1;

        /*设置PageError，调用擦除函数*/

        uint32_t PageError = 0;

        HAL_FLASHEx_Erase(&FlashSet, &PageError);

        /* 3/4对FLASH烧写*/

        for(i=0;i<L;i++)

        {

                HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, addr+4*i, Data[i]);

        }

        /* 4/4锁住FLASH*/

        HAL_FLASH_Lock();

}

/*FLASH读取打印程序*/

void PrintFlashTest(uint32_t L,uint32_t addr)

{

        uint32_t i=0;

        for(i=0;i<L;i++)

        {

                printf("addr is:0x%x, data is:0x%x\n", addr+i*4,  *(__IO uint32_t*)(addr+i*4));

        }

}

 

double WriteFlashData2[3]={3.5,1234567890,-3.5};

typedef union{

        double doubleNum;

        uint64_t u64Num;

} DoubleAndU64;

void WriteFlashDouble(uint32_t L,double Data[],uint32_t addr)

{

        DoubleAndU64 data2u64;

        uint32_t i=0;

 

        /* 1/4解锁FLASH*/

        HAL_FLASH_Unlock();

        /* 2/4擦除FLASH*/

        /*初始化FLASH_EraseInitTypeDef*/

        /*擦除方式页擦除FLASH_TYPEERASE_PAGES，块擦除FLASH_TYPEERASE_MASSERASE*/

        /*擦除页数*/

        /*擦除地址*/

        FLASH_EraseInitTypeDef FlashSet;

        FlashSet.TypeErase = FLASH_TYPEERASE_PAGES;

        FlashSet.PageAddress = addr;

        FlashSet.NbPages = 1;

        /*设置PageError，调用擦除函数*/

        uint32_t PageError = 0;

        HAL_FLASHEx_Erase(&FlashSet, &PageError);

 

        /* 3/4对FLASH烧写*/

        for(i=0;i<L;i++)

        {

                data2u64.doubleNum=Data[i];

                HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, addr+8*i, data2u64.u64Num);

        }

        /* 4/4锁住FLASH*/

        HAL_FLASH_Lock();

}

void PrintFlashDouble(uint32_t L,uint32_t addr)

{

        DoubleAndU64 data2double;

        uint32_t i=0;

        for(i=0;i<L;i++)

        {

                data2double.u64Num=*(__IO uint64_t*)(addr+i*8);

                printf("addr is:0x%x, data is:%f\n", addr+i*8, data2double.doubleNum );

        }

}

 

/* USER CODE END 0 */

 

/**

  * @brief  The application entry point.

  * @retval int

  */

int main(void)

{

  /* USER CODE BEGIN 1 */

        uint8_t dat1[]={"China "};

        uint8_t dat2[]={"Back!\r\n"};

//        uint8_t *dat2="7777 ";

  /* 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_USART1_UART_Init();

  MX_RTC_Init();

  /* USER CODE BEGIN 2 */

 

  HAL_UART_Receive_IT(&huart1, &rxdata1, 1);  //中断接收函数

 

 

        WriteFlashDouble(3,WriteFlashData2,addr);

        PrintFlashDouble(3,addr);

 

  /* USER CODE END 2 */

 

  /* Infinite loop */

  /* USER CODE BEGIN WHILE */

 

  while (1)

  {

          //记得看看奇偶校验

          HAL_GPIO_WritePin(GPIOB,GPIO_PIN_12,GPIO_PIN_RESET);

          HAL_Delay(2000);

          HAL_GPIO_WritePin(GPIOB,GPIO_PIN_12,GPIO_PIN_SET);

 

//          HAL_UART_Transmit(&huart1,(uint8_t*)"China ",sizeof("China "), 0xffff);

          HAL_Delay(2000);

          while(huart1.gState != HAL_UART_STATE_READY);

          HAL_UART_Transmit_IT(&huart1,dat1,6); //不要在此处用sizeof(dat1),不然下一次连续发送就会失效！

          while(huart1.gState != HAL_UART_STATE_READY);

          HAL_UART_Transmit_IT(&huart1,dat2,7);

 

 

          while(huart1.gState != HAL_UART_STATE_READY);

      printf("Hello\r\n");  //使用printf必须用\n结束！！

 

    /* 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 PeriphClkInit = {0};

 

  /** Initializes the RCC Oscillators according to the specified parameters

  * in the RCC_OscInitTypeDef structure.

  */

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE|RCC_OSCILLATORTYPE_LSE;

  RCC_OscInitStruct.HSEState = RCC_HSE_ON;

  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;

  RCC_OscInitStruct.LSEState = RCC_LSE_ON;

  RCC_OscInitStruct.HSIState = RCC_HSI_ON;

  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;

  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;

  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;

  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != 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_DIV2;

  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

 

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)

  {

    Error_Handler();

  }

  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC;

  PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;

  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)

  {

    Error_Handler();

  }

}

 

/* 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 */