Hi all,
I´m trying to use a micro SD-Card with my Nucleo L433RC and have some Problems. The Code is generated by CubeMX 5. I added the following lines to it:
FRESULT res;
uint32_t byteswritten;
uint8_t wtext[] = "Test1";
if(retSD==0)
{
if(f_mount(&SDFatFS,(TCHAR const*)SDPath, 0)!= FR_OK)
{
Error_Handler();
}
else
{
if(f_open(&SDFile, "sd_test.txt",FA_CREATE_ALWAYS | FA_WRITE)!= FR_OK)
{
Error_Handler();
}
else
{
res = f_write(&SDFile, wtext, sizeof(wtext)-1,(void*)&byteswritten);
if((byteswritten == 0)||(res!= FR_OK))
{
Error_Handler();
}
else
{
f_close(&SDFile);
}
}
}
}
The Code can´t open the File. Debugging shows that the command:
res = find_volume(&path, &fs, mode);
Returns FR_NOT_READY
I´ve tested several SD-Cards but without succes. Pull-ups are the internal from the STM32.
The Clock is at 8 MHZ. Clock divide factor for SD is 4.
Do you have any Suggestions for me?That would be awesome :) I do not know how to continue.
Best regards
Stephan
