移植官方STM32F4XX IAP程序为HAL库的过程

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qq344269956 发布时间：2020-1-19 15:47

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这段时间用到STM32F417XXX一芯片做项目需要用到IAP进行串口在线升级，官方例程是利用了一个IO进行控制升级，我的想法是，使用STM32的串口控制升级，大约的流程如下：
上电---->通过串口发送指定字符串------>自延时约200ms------>接收是否有上位机的指定字符串-------->如有进行升级，如无直接进行APP跳转。

首先我们下载了STM32F4xx_AN3965_V1.0.0作为初始例程，而且这个例程还有说明都一并放置到下载区了。

然后，我们首先生成了一个基于HAL的例程文件，只开启了UART1，其它的功能不用动

设置了时间为168MHz，然后生成了一个HAL库的代码。

将STM32F4xx_AN3965_V1.0.0里面的
common.c
flash_if.c
menu.c
ymodem.c
放置到Src文件夹中，头文件放置到inc文件夹中，在工程中将这几个文件添加到工程中（Application/usr文件夹上右键，add  existiong .....）

在头文件中添加上头文件
#include "menu.h"
#include "common.h"
#include "string.h"
#include "stdio.h"

添加下面的这些外部定义
extern pFunction Jump_To_Application;
extern uint32_t JumpAddress;
extern uint32_t FlashProtection;

编译后会出现一些错误，主要有：
FLASH_Sector_x的报错，找不到这些，打到这些地方全部改成FLASH_SECTOR_X

FLASH_Erase_SectorXX的报错，HAL中没有返回，相应更改一下：
uint32_t FLASH_If_Erase(uint32_t StartSector)
{
  uint32_t UserStartSector = FLASH_SECTOR_1, i = 0;

  /* Get the sector where start the user flash area */
  UserStartSector = GetSector(APPLICATION_ADDRESS);

  for(i = UserStartSector; i <= FLASH_SECTOR_11; i += 1)
  {
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
   be done by word */
FLASH_Erase_Sector(i, FLASH_VOLTAGE_RANGE_3);
  }

  return (0);
}

其它的一些基本类似，解决办法都是是到：
stm32F4xx_hal_flash.c、stm32F4xx_hal_flash_ex.c和中找到对应的函数进行替换
需要注意的是
有些函数：
FLASH_Erase_Sector等，会出现一个默认定义的情况，这时只需要将本来声明到在stm32F4xx_hal_flash.c、stm32F4xx_hal_flash_ex.c中
void             FLASH_MassErase(uint8_t VoltageRange, uint32_t Banks);
HAL_StatusTypeDef  FLASH_OB_EnableWRP(uint32_t WRPSector, uint32_t Banks);
HAL_StatusTypeDef  FLASH_OB_DisableWRP(uint32_t WRPSector, uint32_t Banks);
HAL_StatusTypeDef  FLASH_OB_RDP_LevelConfig(uint8_t Level);
HAL_StatusTypeDef  FLASH_OB_UserConfig(uint8_t Iwdg, uint8_t Stop, uint8_t Stdby);
HAL_StatusTypeDef  FLASH_OB_BOR_LevelConfig(uint8_t Level);
uint8_t          FLASH_OB_GetUser(void);
uint16_t          FLASH_OB_GetWRP(void);
uint8_t          FLASH_OB_GetRDP(void);
uint8_t          FLASH_OB_GetBOR(void);

将这些声明直接放置到对应的头文件中去，同时将头文件包含到需要用*.c中。
还需要修改这个函数
uint32_t FLASH_If_Erase(uint32_t StartSector)
{
  uint32_t UserStartSector = FLASH_SECTOR_1, i = 0;

  /* Get the sector where start the user flash area */
  UserStartSector = GetSector(APPLICATION_ADDRESS);

  for(i = UserStartSector; i <= FLASH_SECTOR_11; i += 1)//原来是i+=8,查一下定义这里应该是+1
  {
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
   be done by word */
FLASH_Erase_Sector(i, FLASH_VOLTAGE_RANGE_3);
  }

  return (0);
}

这个函数需要修改一下，标红的两句是新加的：
void FLASH_Erase_Sector(uint32_t Sector, uint8_t VoltageRange)
{
  uint32_t tmp_psize = 0U;

  /* Check the parameters */
  assert_param(IS_FLASH_SECTOR(Sector));
  assert_param(IS_VOLTAGERANGE(VoltageRange));
  FLASH_WaitForLastOperation(0xFFF);
  if(VoltageRange == FLASH_VOLTAGE_RANGE_1)
  {
   tmp_psize = FLASH_PSIZE_BYTE;
  }
  else if(VoltageRange == FLASH_VOLTAGE_RANGE_2)
  {
tmp_psize = FLASH_PSIZE_HALF_WORD;
  }
  else if(VoltageRange == FLASH_VOLTAGE_RANGE_3)
  {
tmp_psize = FLASH_PSIZE_WORD;
  }
  else
  {
tmp_psize = FLASH_PSIZE_DOUBLE_WORD;
  }

FLASH_WaitForLastOperation(0xFFF);
  /* If the previous operation is completed, proceed to erase the sector */
  CLEAR_BIT(FLASH->CR, FLASH_CR_PSIZE);
  FLASH->CR |= tmp_psize;
  CLEAR_BIT(FLASH->CR, FLASH_CR_SNB);
  FLASH->CR |= FLASH_CR_SER | (Sector << FLASH_CR_SNB_Pos);
  FLASH->CR |= FLASH_CR_STRT;
}

其它修改，串口修改：
void SerialPutChar(uint8_t c)
{
  HAL_UART_Transmit_IT(&huart1, &c,1);
while(__HAL_UART_GET_FLAG(&huart1, UART_FLAG_TC) == RESET);
}

uint32_t SerialKeyPressed(uint8_t *key)
{

if(HAL_UART_Receive(&huart1,key,1,0xFF) == HAL_OK)
{
return 1;
}
else
{
return 0;
}

}

在修改完成确认没有错误了，就需要如下操作：
修改main函数：
int CmpStr(const char *data,const char *data1,int index1,int index2,int length);

#ifdef  __GNUC__

#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 0 */

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

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

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

  /* USER CODE BEGIN Init */
  uint8_t mychar[30] = "*****************\n\r";//上下交互的语句，请自定义
  /* 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();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {

Serial_PutString(mychar);

if(HAL_UART_Receive(&huart1,mychar,16,0xFF) == HAL_OK)
{
if(CmpStr((char *)mychar,"**************",0,0,strlen("***********")) == 0)//标红的需要自已定义
{
printf("正在等待数据文件下发......\r\n");

FLASH_If_Init();

//Main_Menu();
//FlashProtection = !FLASH_If_GetWriteProtectionStatus();
SerialDownload();
}
}

/* Test if user code is programmed starting from address "APPLICATION_ADDRESS" */
if (((*(__IO uint32_t*)APPLICATION_ADDRESS) & 0x2FFE0000 ) == 0x20000000)
{
Serial_PutString((uint8_t *)"start user Program!\r\n\n");
//HAL_Delay(100);;
/* Jump to user application */
   JumpAddress = *(__IO uint32_t*) (APPLICATION_ADDRESS + 4);
   Jump_To_Application = (pFunction) JumpAddress;
   /* Initialize user application's Stack Pointer */
   __set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS);
Serial_PutString((uint8_t *)"Start program execution......\r\n\n");
//HAL_Delay(100);
   Jump_To_Application();
}
else
{
Serial_PutString((uint8_t *)"no user Program\r\n\n");
}

/* USER CODE END WHILE */

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

int CmpStr(const char *data,const char *data1,int index1,int index2,int length)
{
   //int temp = 0;
   for(int i = 0; i< length;i++)
   {
   if(*(data+index1+i)- *(data1+index2+i) >0)
   {
   return 1;
   }
   if(*(data+index1+i)- *(data1+index2+i) <0)
   {
   return -1;
   }
   }
   return 0;
}

好了，基本就这些，有问题留言，我有时间就回复。。。
如果有好的提议，可以一起探讨一下！

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