FR_NO_FILESYSTEM, (13) There is no valid FAT volume

[NOVAL_______BOBY]

res = disk_initialize(0);

printf("disk_initialize returned: %d\n", res);

if (res != RES_OK) {

printf("Disk initialization failed!\n");

v = 8;

} else {

fres = f_mount(&fs, "", 1);

printf("mount returned: %d\n", fres);

if (fres == FR_OK) {

printf("Filesystem mounted successfully!\n");

v = 5;

} else {

printf("Filesystem mount failed!\n");

v = 9;

}

}

got intiailization correct and i tryed f_mks and format the flash ic .

but still occur filemount issue. got no idea where the issue come from . no bug or error .
i see this on debug window

Thread #1 [main] 1 [core: 0] (Suspended : Signal : SIGINT:Interrupt)

main() at main.c:135 0x80003a4

i am using nucleo f302r8 board and w25q64 winbond flash ic

anyone have any idea?

[AScha.3 · Accepted solution]

Yes. Read here in forum -> search ... sd

& also my posts, how to begin and avoid basic errors/problems .

[NOVAL_______BOBY]

i dont get it .

[AScha.3]

see: your not the first, to have this problem. 

So look, what are the steps, to get it working: correct hardware setup, etc.

https://community.st.com/t5/forums/searchpage/tab/message?advanced=false&allow_punctuation=false&q=sd

-> 4,000 results !  a lot to read...

Its "normal" - in my sd-card tests it never worked instantly , just by connecting some wires and any sd-adapter.

So "standard" is not working, at start...