OTA功能代码

app中重要代码
.c

 //固件数据发送完成
			  User_Flash_Write(addr,(u8*)data,FLASH_PAGE_SIZE);
			  addr=APP_BACK_ADDR_START;
			  system_config.ota.have_new=1;
			  system_config.ota.newFirmware_crc=*(__IO uint32_t *)(APP_BACK_ADDR_START+position-4);
			  system_config.ota.newFirmware_size = position-4;
        reboot_s=2;     

SYSTEM_DEBUG("重启\r\nsystem_config=%x\r\nnewFirmware_crc=%x\r\nnewFirmware_size=%x\r\n",system_config.ota.have_new,system_config.ota.newFirmware_crc,system_config.ota.newFirmware_size);
                    HAL_NVIC_SystemReset();

.h

#define BOOT_SIZE	                	        (6*1024)                 //Boot区
#define APP_SIZE		                        (60*1024)			    //app备份区尺寸
#define APP_BACKUP_SIZE		                    (60*1024)			    //app备份区尺寸

#define APP_ENTRY_ADDRESS 			            (FLASH_BASE + BOOT_SIZE)		    //宏定义跳转app首地址
#define APP_BACK_ADDR_START 	                (FLASH_BASE + BOOT_SIZE + APP_SIZE)			//app备份区首地址

#define USER_FLASH_CONFIG_ADDR (FLASH_BASE+126*1024) // 最后2k作为参数保存区

引导区代码
.c

typedef  void (*pFunction)(void);
uint32_t JumpAddress;
pFunction JumpToApplication;

void JumpToApp(u32 address)
{
	if(((*(__IO uint32_t*)address) & 0x2FFE0000 ) == 0x20000000)
	{

        SYSTEM_DEBUG("start jump to app(0x%0x)....\r\n",address);
		/* Jump to user application */
		//debug("jump to application\r\n");
		JumpAddress = *(__IO uint32_t*) (address + 4);

		/* Initialize user application's Stack Pointer */
		__set_MSP(*(__IO uint32_t*) address);
		JumpToApplication = (pFunction) JumpAddress;
		JumpToApplication();
	}
}

.h

#define BOOT_SIZE	                	        (6*1024)                 //Boot区
#define APP_SIZE		                        (60*1024)			    //app备份区尺寸
#define APP_BACKUP_SIZE		                    (60*1024)			    //app备份区尺寸

#define APP_ENTRY_ADDRESS 			            (FLASH_BASE + BOOT_SIZE)		    //宏定义跳转app首地址
#define APP_BACK_ADDR_START 	                (FLASH_BASE + BOOT_SIZE + APP_SIZE)			//app备份区首地址

#define USER_FLASH_CONFIG_ADDR (FLASH_BASE+126*1024) // 最后2k作为参数保存区