I build the whole program by the IDE.
Following is my code. I can read the CID of the card without select the fatfs middleware. The program report FR_DISK_ERR in f_open. The f_mount works fine.
int main(void)
{
/* USER CODE BEGIN 1 */
/* 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_DMA_Init();
MX_RTC_Init();
MX_USART1_UART_Init();
MX_ADC1_Init();
MX_SPI1_Init();
MX_SPI2_Init();
MX_USART2_UART_Init();
MX_SDIO_SD_Init();
MX_TIM1_Init();
MX_USB_DEVICE_Init();
MX_FATFS_Init();
/* USER CODE BEGIN 2 */
printf("\r\n ****** FatFs Example ****** \r\n\r\n");
/*##-1- Register the file system object to the FatFs module ##############*/
retSD = f_mount(&SDFatFS, "", 0);
if(retSD){
printf(" mount error : %d \r\n",retSD);
Error_Handler();
}
else
printf(" mount sucess!!! \r\n");
uint8_t a[1024];
printf("HAL_SD_InitCard %d\r\n",HAL_SD_InitCard(&hsd));
retSD = f_open(&SDFile, "C.txt", FA_CREATE_ALWAYS | FA_WRITE);
if(retSD){
printf(" open file error : %d\r\n",retSD);
}
else{
printf(" open file sucess!!! \r\n");
}
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
retSD = f_open(&SDFile, "C.txt", FA_CREATE_ALWAYS | FA_WRITE);
if(retSD){
printf(" open file error : %d\r\n",retSD);
}
else{
printf(" open file sucess!!! \r\n");
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
