int main(void)

{

  /* USER CODE BEGIN 1 */

    int i;

    int j;

    FIL file;

    FATFS fatfs;                                                             //Âß¼­Çý¶¯Æ÷µÄ¹¤×÷Çø

    static FRESULT res;                                                      //FRESULTº¯Êý¹«¹²½á¹û´úÂë

    unsigned char write_buffer[];                                         //дÎļþ»º³åÇø

    unsigned char read_buffer[];                                          //¶ÁÎļþ»º³åÇø

    unsigned int counter;

  /* USER CODE END 1 */

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

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */

  HAL_Init();

  /* Configure the system clock */

  SystemClock_Config();

  /* Initialize all configured peripherals */

  MX_GPIO_Init();

  MX_DMA_Init();

  MX_SDIO_SD_Init();

  MX_FATFS_Init();

  MX_USART1_UART_Init();

  SystemClock_Config();

  /* USER CODE BEGIN 2 */

    usart1.printf("\x0c");                                   //ÇåÆÁ

    usart1.printf("\033[1;32;40m");                          //½«×ÖÌåÉèÖóÉÂÌÉ«

    usart1.printf("\r\n\r\nhello! I am iCore1S!\r\n\r\n\r\n");

    HAL_Delay();

        res = f_mount(&fatfs,(TCHAR const*)SDPath,);          //¹ÒÔØSD¿¨

    if(res != RES_OK){

                usart1.printf("f_mount error!\r\n");

        while(){

            HAL_Delay();

            LED_RED_TOGGLE;

        }

    }

            else{

        usart1.printf("f_mount successful!\r\n");

    }

    res = f_open(&file,"0:/test.txt",FA_READ | FA_WRITE | FA_OPEN_ALWAYS); //´ò¿ªÇý¶¯Æ÷0ÉϵÄÔ´Îļþ

    if(res != RES_OK){

        usart1.printf("f_open error!\r\n");

        while(){

            HAL_Delay();

            LED_RED_TOGGLE;

        }

    }else{

        usart1.printf("f_open successful!\r\n");

    }

    res = f_lseek(&file,);                                                     //Òƶ¯Ð´Ö¸Õëµ½ÎļþÊ×

    if(res != RES_OK){

        usart1.printf("f_lseek error!\r\n");

        while(){

            HAL_Delay();

            LED_RED_TOGGLE;

        }

    }else{

        usart1.printf("f_lseek successful!\r\n");

    }

    for(i = ;i < ;i++){

        write_buffer[i] = i % ;

    }

    res = f_write(&file,write_buffer,sizeof(write_buffer),&counter); //½«»º³åÆ÷ÖеÄÄÚÈÝдÈëÔ´Îļþ

    if(res != RES_OK || counter != ){

        usart1.printf("f_write error!\r\n");

        while(){

            HAL_Delay();

            LED_RED_TOGGLE;

        }

    }else{

        usart1.printf("f_write successful!\r\n");

    }

    res = f_lseek(&file,);                                               //Òƶ¯¶ÁÖ¸Õëµ½ÎļþÊ×

    if(res != RES_OK){

        usart1.printf("f_lseek error!\r\n");

        while(){

            HAL_Delay();

            LED_RED_TOGGLE;

        }

    }else{

        usart1.printf("f_lseek successful!\r\n");

    }

    res = f_read(&file,read_buffer,sizeof(read_buffer),&counter);

    if(res != RES_OK || counter != ){

        usart1.printf("f_read error!\r\n");

        while(){

            HAL_Delay();

            LED_RED_TOGGLE;

        }

    }else{

        usart1.printf("f_read successful!\r\n");

    }

    f_close(&file);                                                 //¹Ø±ÕÔ´Îļþ

    usart1.printf("read data:\r\n");

    for(i = ;i < ;i++){

        for(j = ; j < ; j ++)

            usart1.printf(" %02X",read_buffer[i*+j]);

            usart1.printf("\r\n");

    }

  /* USER CODE END 2 */

  /* Infinite loop */

  /* USER CODE BEGIN WHILE */

  while ()

  {

  /* USER CODE END WHILE */

  /* USER CODE BEGIN 3 */

        HAL_Delay();

        LED_GREEN_TOGGLE;

  }

  /* USER CODE END 3 */

}