【iCore4 雙核心板_ARM】例程三十二:UART_IAP_ARM實驗——更新升級STM32

XiaomaGee發表於2017-09-30

實驗現象及操作說明:

1、本例程共有兩個程式碼包,APP和IAP,IAP程式功能實現將APP程式升級至STM32中。

2、直接上電或燒寫程式將執行升級的APP應用程式。

BIN升級檔案產生方法:

1、編譯APP工程,產生.hex檔案。

2、將.hex檔案拖至HEX2BIN.EXE即可產生.bin檔案。

核心程式碼:

int main(void)
{

  /* USER CODE BEGIN 1 */
    int i = 0;
  /* 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_USART6_UART_Init();

  /* USER CODE BEGIN 2 */
    //³õʼ»¯´®¿Ú²¨ÌØÂÊ 115200
    usart6.initialize(115200);
    usart6.printf("\x0c");                                                                                              //ÇåÆÁ
    usart6.printf("\033[1;32;40m");                                       //ÉèÖÃÖÕ¶Ë×ÖÌåΪÂÌÉ«    
    
    LED_GREEN_ON;
    if(ARM_KEY_STATE == KEY_UP){                                                                                  //°´¼üËÉ¿ª×´Ì¬Ö±½ÓÌøÏòÓ¦ÓóÌÐò
        goto start;
    }
    while(1){                                                                                                                            //°´¼ü°´Ï£¬½øÈëÉý¼¶×´Ì¬
        if(i++ == 5000000){
            //´®¿Ú·¢ËÍ×Ö·ûC
            usart6.send_byte('C');
            i = 0;
        }        

        if(usart6.receive_buffer[0] == SOH){
            break;
        }
    }
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
  /* USER CODE END WHILE */
        if(usart6.receive_ok_flag == 1){
            usart6.receive_ok_flag = 0;
            LED_GREEN_OFF;
            xmodem.process();
                            
            if(usart6.receive_buffer[0] == EOT){
                usart6.send_byte(ACK);    
                
                //¶Á±£»¤
                for(i = 0; i < 100000; i ++);    
                HAL_FLASH_Lock();
                
                //·¢ËÍÎļþ³É¹¦£¬Â̵ÆÁÁ
                LED_BLUE_OFF;
                LED_RED_OFF;
                LED_GREEN_ON;
                
                while(1);
            }    
        }    
  /* USER CODE BEGIN 3 */

  }
    start:
        
    //²âÊÔÓû§´úÂëÊÇ·ñ´ÓAPPLICATION_ADDRESS±»±à³Ì
        if (((*(__IO uint32_t*)APPLICATION_ADDRESS) & 0x2FFE0000 ) == 0x20000000){ 
            
            //ÌøתÖÁÓû§³ÌÐò
            JumpAddress = *(__IO uint32_t*) (APPLICATION_ADDRESS + 4);
            Jump_To_Application = (pFunction) JumpAddress;
            
            //³õʼ»¯Óû§³ÌÐòµÄ¶ÑÕ»Ö¸Õë
            __set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS);
            
            //ÌøתÖÁÓ¦ÓóÌÐò
            Jump_To_Application();
        }else{                
            led_trade();
        }    
  /* USER CODE END 3 */

}

原始碼下載連結:

連結:http://pan.baidu.com/s/1kVLzFPP 密碼:37zh

iCore4連結:

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