STM32 Can't remount SD after replacing SD card
Dear community,
I'm still facing an issue with my SD card slot on my STM32F410RB Nucleo Board while using the CUBE IDE. After resetting the microcontroller, I'm able to mount the SD card successfully again, but as soon as I remove the card, I'm not able to mount it anymore.
When trying to mount the card after removing it, I'm getting an error message of FR_NOT_READY from the f_mount function. I've tried various things to fix the issue, such as testing the SD card in different slots and trying different pull-up and pull-down configurations, but unfortunately, nothing has worked so far.
Since I'm using the CUBE IDE, I was wondering if anyone in the community has had a similar experience or has any tips on how to fix this problem within the IDE. Any help would be greatly appreciated.
void process_SD_card( void )
{
if (SdCardConnected == 1)
{
printf("SD Card found\r\n");
FATFS FatFs; //Fatfs handle
FIL fil; //File handle
FRESULT fres; //Result after operations
char buf[100];
do
{
//Mount the SD Card
fres = f_mount(&FatFs, "", 1); //1=mount now
if (fres != FR_OK)
{
//MX_FATFS_DeInit();
printf("No SD Card found : (%i)\r\n", fres);
break;
}
printf("SD Card Mounted Successfully!!!\r\n");
//Read the SD Card Total size and Free Size
FATFS *pfs;
DWORD fre_clust;
uint32_t totalSpace, freeSpace;
f_getfree("", &fre_clust, &pfs);
totalSpace = (uint32_t)((pfs->n_fatent - 2) * pfs->csize * 0.5);
freeSpace = (uint32_t)(fre_clust * pfs->csize * 0.5);
printf("TotalSpace : %lu bytes, FreeSpace = %lu bytes\n", totalSpace, freeSpace);
//Open the file
fres = f_open(&fil, "EmbeTronicX.txt", FA_WRITE | FA_READ | FA_CREATE_ALWAYS);
if(fres != FR_OK)
{
printf("File creation/open Error : (%i)\r\n", fres);
break;
}
printf("Writing data!!!\r\n");
//write the data
f_puts("Welcome to EmbeTronicX", &fil);
//close your file
f_close(&fil);
//Open the file
fres = f_open(&fil, "EmbeTronicX.txt", FA_READ);
if(fres != FR_OK)
{
printf("File opening Error : (%i)\r\n", fres);
break;
}
//read the data
f_gets(buf, sizeof(buf), &fil);
printf("Read Data : %s\n", buf);
//close your file
f_close(&fil);
printf("Closing File!!!\r\n");
#if 0
//Delete the file.
fres = f_unlink(EmbeTronicX.txt);
if (fres != FR_OK)
{
printf("Cannot able to delete the file\n");
}
#endif
} while( false );
//We're done, so de-mount the drive
fres = f_mount(0, "", 0);
printf("SD Card Unmounted Successfully!!!\r\n");
}else printf("No SD Card found \r\n");
}
