STM32F103 USB OTA升级APP (二)

接上一篇STM32F103 USB OTA升级BootLoader (一)：跳转链接

修改程序启动地址和Flash大小

 修改main.c代码

#include "main.h"
#include "usart.h"
#include "usb_device.h"
#include "gpio.h"
#include "Update.h"

void SystemClock_Config(void);

int main(void)
{
    SCB->VTOR = FLASH_APP_ADDR;
	HAL_Init();
	SystemClock_Config();

	MX_GPIO_Init();
	MX_USART1_UART_Init();
	MX_USB_DEVICE_Init();
	printf("IAP Code V1.1\r\n");
	while (1)
	{
		

		Usart_Data_Handler();

	}
  /* 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_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  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_USB;
  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
  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 */

  /* 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,
     tex: 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****/

Update.c

#include "Update.h"

uint32_t PageError = 0;

void Write_Flash(uint8_t *data, uint16_t DataLen, uint32_t Addr)
{
	uint16_t i = 0;
	uint64_t Data = 0;
    uint64_t temp = 0;
    
	HAL_FLASH_Unlock();
	for(i = 0; i < DataLen; i += 8)
	{
        Data = 0;        
        for(uint8_t j = 0; j < 8; j++)
        {
            temp = data[i + j];
            Data |= temp << 8 * j;
        }
        
		if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, FLASH_APP_ADDR + Addr + i, Data) == HAL_OK)
		{
             
		}
        
       /* printf("0x%16llx   |", Data);
        if(i % 16 == 0 && i != 0)
        printf("\r\n");*/
	}
	HAL_FLASH_Lock();
}


void Write_Updata_Flag_Flash(void)
{
    HAL_FLASH_Unlock();
    HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, FLASH_Updata_Flag_ADDR, 0x55555555);
    HAL_FLASH_Lock();
}

void Erase_Updata_Flag_Flash(void)
{
	FLASH_EraseInitTypeDef EraseInitStruct;
	HAL_FLASH_Unlock();
	EraseInitStruct.TypeErase   = FLASH_TYPEERASE_PAGES;
	EraseInitStruct.PageAddress        = FLASH_Updata_Flag_ADDR;
	EraseInitStruct.NbPages     = 1;
	if (HAL_FLASHEx_Erase(&EraseInitStruct, &PageError) != HAL_OK)
	{

    }
    HAL_FLASH_Lock();
}

void Erase_APP_Flash(void)
{
	FLASH_EraseInitTypeDef EraseInitStruct;
	HAL_FLASH_Unlock();
	EraseInitStruct.TypeErase   = FLASH_TYPEERASE_PAGES;
	EraseInitStruct.PageAddress        = FLASH_APP_ADDR;
	EraseInitStruct.NbPages     = 20;
	if (HAL_FLASHEx_Erase(&EraseInitStruct, &PageError) != HAL_OK)
	{

    }
    HAL_FLASH_Lock();
}


void Read_Flash_Data(uint8_t* pBuffer, uint32_t NumToRead, uint32_t ReadAddr)
{
    uint32_t i;
    for (i = 0; i < NumToRead; i++)
    {
        *((uint8_t*)pBuffer + i) = *((uint8_t*)ReadAddr + i);
    }
}


#define RX_QUEUE_LENGTH 	2048		
static uint8_t RxQueue[RX_QUEUE_LENGTH];
uint8_t Update_Data[1024 + 10];
static uint16_t RxQueueHead = 0;
static uint16_t RxQueueTail = 0;

typedef enum
{
	RECEIVER_IDLE	= 0,
    RECEIVER_HEAD_H,
    RECEIVER_HEAD_L,
    RECEIVER_CMD,
    RECEIVER_LEN_H,
    RECEIVER_LEN_L,
    RECEIVER_DATA,
    RECEIVER_CHECK,
}RECEIVER_STATE;

typedef enum
{
    UPDATE_IDLE = 0,
	UPDATE_START,	
    UPDATE_STARTING,
    UPDATE_END,
}UPDATE_STATE;

RECEIVER_STATE Receiver_State = RECEIVER_HEAD_H;
UPDATE_STATE Update_State = UPDATE_IDLE;

void OnDataReceived(uint8_t val)
{
	if(((RxQueueTail + 1) % RX_QUEUE_LENGTH) != RxQueueHead)		//queue is not full
	{		
		RxQueue[RxQueueTail++] = val;			                        //save data into queue
		RxQueueTail %= RX_QUEUE_LENGTH;		                    //queue tail++
	}
}

void ClearRxQueue(void)
{
	RxQueueHead = 0;
	RxQueueTail = 0;
	memset(RxQueue, 0, sizeof(RxQueue));
}

static uint16_t GetRxQueueLen(void)
{
	return ((RxQueueTail + RX_QUEUE_LENGTH - RxQueueHead) % RX_QUEUE_LENGTH);
}

uint8_t GetRxQueueData(void)
{
	uint8_t val;
	val = RxQueue[RxQueueHead];
	RxQueueHead = ((RxQueueHead + 1) % RX_QUEUE_LENGTH);
	return val;
}

uint8_t Check_Sum(uint8_t *str, uint16_t len)
{
    uint8_t sum = 0;
    for(;len > 0; len--)
    {
        sum += *str++;
    }
    return sum;
}

bool Usart_Data_Handler(void)
{
	static uint8_t Data;
	static uint8_t Cmd;
	static uint16_t Receive_Data_Len;
	static uint16_t Receive_Data_Count;

    while(GetRxQueueLen() > 0)
    {	
        Data = GetRxQueueData();
        
        if(Receiver_State == RECEIVER_HEAD_H)
        {
            if(Data == 0x55)
            {
                Receiver_State++;
            }
        }
        else if(Receiver_State == RECEIVER_HEAD_L)
        {
            if(Data == 0x55)
            {
                Receiver_State++;
            }
        }
        else if(Receiver_State == RECEIVER_CMD)
        {
            Receiver_State++;
            Cmd = Data;
            if(Cmd == 0x00)
            {
                Erase_Updata_Flag_Flash();
                printf("Erase_Updata_Flag_Flash \r\n");
                NVIC_SystemReset();
            }    
        }
        else if(Receiver_State == RECEIVER_LEN_H)
        {
            Receiver_State++;

        }
        else if(Receiver_State == RECEIVER_LEN_L)
        {
            Receiver_State++;
        }
        else if(Receiver_State == RECEIVER_DATA)
        {
            if(Receive_Data_Count == Receive_Data_Len)
            {
                Receiver_State++;
            }
        }
        else if(Receiver_State == RECEIVER_CHECK)
        {
            Receiver_State = RECEIVER_HEAD_H;
        }
    }
}

void Usart_Get_Data_Handler(void)
{
	if(!Usart_Data_Handler())
	{
		return;
	}
}

Update.h

#ifndef __UPDATE_H
#define __UPDATE_H

#include "main.h"
#include 
#include 
#include 
#include "usbd_cdc_if.h"

#define FLASH_Page_Size		(2048)
#define FLASH_Updata_Flag_ADDR	(0x08000000 + 9 * FLASH_Page_Size)
#define FLASH_APP_ADDR	(0x08000000 + 10 * FLASH_Page_Size)


void Erase_APP_Flash(void);
void Erase_Updata_Flag_Flash(void);
void Write_Flash(uint8_t *data, uint16_t DataLen, uint32_t Addr);
void Read_Flash_Data(uint8_t* pBuffer, uint32_t NumToRead, uint32_t ReadAddr);


void ClearRxQueue(void);
void OnDataReceived(uint8_t val);
bool Usart_Data_Handler(void);

#endif

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