0904_BOOT/User/main.c

/**
  ******************************************************************************
  * @file    main.c 
  * @author  LI
  * @version V3.5.0
  * @date    08-April-2015
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "includes.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/



uint8_t run_led_state = LED_OFF;
uint32_t count = 0;
uint16_t read_data_dr2 = 0, write_data_dr2 = 0;
uint8_t updata_flag = 0;
uint32_t read_crc1,read_crc2,read_crc3;
uint32_t get_crc1,get_crc2,get_crc3;
uint32_t datalen1,datalen2,datalen3;
uint8_t app1_check_result,app2_check_result,app3_check_result;
uint8_t app1_check_num=0,app2_check_num=0,app3_check_num=0;
uint8_t jump_flag = 0;
uint32_t update_addr=0,update_len=0;
uint16_t read_data_dr=0;
uint8_t copy_addr=0,update_type;
int main(void)
{
//	SysTick_init();
	RCC_Configuration();
	LED_Init();
	uart_init(UART1_ID, 115200, USART_WL_8BIT, USART_PM_NONE);
	I2C_init();
	
	IWDG_Config();
	printf("bootloader begin\n");
	eeprom_init_handle();
	read_data_dr2 = bkp_data_read(BKP_DATA_1);
	printf("BKP_DR2=%04x\n",read_data_dr2);
	if(flag_not_cmp(read_data_dr2))
	{
		read_data_dr=bkp_data_read(BKP_DATA_6);//升级的固件类型
		if(read_data_dr == 0x02)//升级产测
		{
			update_addr = OTA_UPDATE_PT_FLASH_START_ADDR;
			update_len = OTA_UPDATE_PT_FLASH_SIZE;
			copy_addr = UPDATE_ENUM_PT;
			update_type = 2;
			printf("升级产测\n");
		}
		else if(read_data_dr == 0x03)//升级app
		{
			update_addr = OTA_UPDATE_APP1_FLASH_START_ADDR;
			update_len = OTA_UPDATE_APP1_FLASH_SIZE;
			copy_addr = UPDATE_ENUM_APP1;
			update_type = 3;
			printf("升级app\n");
		}
		
		if((read_data_dr2&0x00ff) == UPDATA_FLAG)//升级
		{
			printf("updata begin\n");
			//校验app1
			app1_check_result = app_check(update_addr,update_len,&get_crc1);
			app3_check_result = app_check(OTA_UPDATE_APP3_FLASH_START_ADDR,OTA_UPDATE_APP3_FLASH_SIZE,&get_crc3);
			move1:
			erase_app(UPDATE_ENUM_APP2);
			fwdgt_counter_reload(); 
//			printf("erase app2 end\n");
			copy_app(copy_addr, UPDATE_ENUM_APP2);
			fwdgt_counter_reload(); 
//			printf("copy app1 end\n");
			//校验app2
			app2_check_result = app_check(OTA_UPDATE_APP2_FLASH_START_ADDR,OTA_UPDATE_APP2_FLASH_SIZE,&get_crc2);
			if(get_crc1 != get_crc2)//校验错误，拷贝过程出错
			{
				if(app2_check_num == 0)//如果是第一次，则重新拷贝一次
				{
					app2_check_num++;
					goto move1;
				}
				else
				{
					printf("copy app1 to app2 error\n");
				}
			}
			
			move2:
			erase_app(copy_addr);
			fwdgt_counter_reload(); 
//			printf("erase app1 end\n");
			copy_app(UPDATE_ENUM_APP3, copy_addr);
			fwdgt_counter_reload(); 
//			printf("copy app3 end\n");
			app1_check_result = app_check(update_addr,update_len,&get_crc1);
			if(get_crc1 != get_crc3)//校验错误，拷贝过程出错
			{
				if(app1_check_num == 0)//如果是第一次，则重新拷贝一次
				{
					app1_check_num++;
					goto move2;
				}
				else
				{
					printf("copy app3 to app1 error\n");
					jump_flag = 1;
				}
			}
			
			write_data_dr2 = set_flag_not(BACKOFF_FLAG);
			bkp_data_write(BKP_DATA_1,write_data_dr2);
			
			if(update_type == 2)//产测
			{
				device_mcu_info.app2_ver = device_mcu_info.pt_ver;
				device_mcu_info.pt_ver = device_mcu_info.app3_ver;
				updata_flag = 1;
			}
			else if(update_type == 3)//app
			{
				device_mcu_info.app2_ver = device_mcu_info.app1_ver;
				device_mcu_info.app1_ver = device_mcu_info.app3_ver;
				updata_flag = 1;
			}
			
		}
		else if((read_data_dr2&0x00ff) == BACKOFF_FLAG)//回退
		{
			printf("back off begin\n");
			app2_check_result = app_check(OTA_UPDATE_APP2_FLASH_START_ADDR,OTA_UPDATE_APP2_FLASH_SIZE,&get_crc2);
			move3:
			erase_app(copy_addr);
			fwdgt_counter_reload();
			copy_app(UPDATE_ENUM_APP2, copy_addr);
			fwdgt_counter_reload();
			app1_check_result = app_check(update_addr,update_len,&get_crc1);
			if(get_crc1 != get_crc2)//校验错误，拷贝过程出错
			{
				if(app1_check_num == 0)//如果是第一次，则重新拷贝一次
				{
					app1_check_num++;
					goto move3;
				}
				else
				{
					printf("copy app2 to app1 error\n");
					jump_flag = 1;
				}
			}
			
			write_data_dr2 = set_flag_not(BACKOFF_OVER);
			bkp_data_write(BKP_DATA_1,write_data_dr2);
			
			if(update_type == 2)//产测
			{
				device_mcu_info.pt_ver = device_mcu_info.app2_ver;
				updata_flag = 1;
			}
			else if(update_type == 3)//app
			{
				device_mcu_info.app1_ver = device_mcu_info.app2_ver;
				updata_flag = 1;
			}
		}
		else if((read_data_dr2&0x00ff) == BACKOFF_OVER)//回退失败
		{
			bkp_data_write(BKP_DATA_1,0x0000);
		}
	}
	fwdgt_counter_reload();
	eeprom_info_updata();
	//打印信息
	printf("bootloader信息:\n");
	printf(" first init       = %04x\n",device_public_info.eeprom_first_flag);
	printf(" eeprom ver       = %02x\n",device_public_info.eeprom_ver);
	printf(" reset num        = %u\n",Reset_cnt);
	printf(" boot ver         = %08x\n",device_mcu_info.bootloader_ver);
	printf(" app1 ver         = %08x\n",device_mcu_info.app1_ver);
	printf(" app2 ver         = %08x\n",device_mcu_info.app2_ver);
	printf(" app3 ver         = %08x\n",device_mcu_info.app3_ver);
	
	fwdgt_counter_reload();
	run_app1();
	fwdgt_counter_reload();
	
	while(1)
	{
		if(run_led_state)
			LED_STATE_OFF();
		else
			LED_STATE_ON();
		run_led_state = !run_led_state;
		
		delay_ms(500);
		fwdgt_counter_reload();  //喂狗
		
		count++;
		if(count > 10)
		{
			count = 0;
			NVIC_SystemReset();
		}
	}
	
}