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The disk_initialize() is the same as the example that is given here, and the SD_Init returns 0 as it should. Later I tried to send the command CLR_WRITE_PROT before the f_open, this as solved the problem... Now i have another one, again in auto_mount(). When it search for the FAT partition on the drive: fmt = check_fs(bootsect = 0); the check_fs returns 2 (fm=2) in the second condition:
if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature */ return 2;
With fm=2 the auto_mout returns :
if (fmt || LD_WORD(&fs->win[BPB_BytsPerSec]) != 512U) /* No valid FAT patition is found */ return FR_NO_FILESYSTEM;
Do you think that there is a problem with the SD card? I have formatted the card in FAT and later i tried with FAT32. the same error happens.
Thanks for the help.
I took some time to look over the functions, and the disk_initialize() function is written by you, right?
Within this function, there is a variable names Stat, which is not the same as the variable within the automount function.
When you initialized this variable, how did you do it?
In my diskio.c module, my declaration looks like this:
CODE:
staticvolatile DSTATUS Stat = STA_NOINIT;/* Disk status */
Not only does this declare the variable, but it initializes it to STA_NOINIT as well...
This is a global declaration, within the DISKIO.C module...
Make sure you do this...
-Dave "Basic research is what I am doing when I don't know what I am doing"
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