STM32CubeMX clock config which fail on write/read but pass mount:
Config pass on write read but fail on mount:
The snippet code from ST sample for USB Host write read operation:
static void MSC_File_Operations(void)
{
uint16_t bytesread;
printf("INFO : FatFs Initialized \r\n");
if (f_open(&MyFile, "0:USBHost.txt", FA_CREATE_ALWAYS | FA_WRITE) != FR_OK)
{
printf("Cannot Open 'USBHost.txt' file \r\n");
}
else
{
printf("INFO : 'USBHost.txt' opened for write \r\n");
res = f_write(&MyFile, wtext, sizeof(wtext), (void *)&bytesWritten);
f_close(&MyFile);
if ((bytesWritten == 0) || (res != FR_OK)) /* EOF or Error */
{
printf("Cannot Write on the 'USBHost.txt' file \r\n");
}
else
{
if (f_open(&MyFile, "0:USBHost.txt", FA_READ) != FR_OK)
{
printf("Cannot Open 'USBHost.txt' file for read.\r\n");
}
else
{
printf("INFO : Text written on the 'USBHost.txt' file \r\n");
res = f_read(&MyFile, rtext, sizeof(rtext), (void *)&bytesread);
if ((bytesread == 0) || (res != FR_OK)) /* EOF or Error */
{
printf("Cannot Read from the 'USBHost.txt' file \r\n");
}
else
{
printf("Read Text : \r\n");
printf((char *)rtext);
printf("\r\n");
}
f_close(&MyFile);
}
/* Compare read data with the expected data */
if ((bytesread == bytesWritten))
{
printf("INFO : FatFs data compare SUCCES");
printf("\r\n");
}
else
{
printf("FatFs data compare ERROR");
printf("\r\n");
}
}
}
}