When running the SD card demo (mfs_sdcard) I can get up to the following place:
sdcard_handle = fopen("sdcard:", 0);
if ( sdcard_handle == NULL )
printf("Unable to open SD card device.\n");
Here it fails and I get the error message :Unable to open SD card device.
I configured user_config.h as required.
Are there any hw switches I have to change to access the card?
I can access the card from the PC w/o any problems.