FATFS on SPI bus - FR_NOT_READY

[alessandro buccato]

Posted on March 22, 2018 at 09:24

hi to everyone

I'm trying to use the library 21 sd_card demo by

https://l.facebook.com/l.php?u=http%3A%2F%2Fstm32f4-discovery.net%2F&h=ATOUXBT8q6rvTUZYyodpiuulouhtO_tRdlKijHgKlwn4SBm-gCr7eZyZCTKuEFeoVBuX3WGl-hW51PLrn94WQAEzMBInlbYe1hA2fcvEur-cra-UdZ9RSxKE5-ddsGM

but I have a problem with the write/read file on sd card. f_mount is okay (set red led) but f_opens failed with code error 0x03 FR_NOT_READ. I tried to debug, but I didn't understand where is the problem. I increased HEAP and STACK from 0x200/0x400 to 0x2000/0x4000 but without any success.

where is the problem?

thanks in advance

[Tesla DeLorean]

Posted on March 22, 2018 at 09:43

Check if there is any code using a GPIO as a card detect pin 

[alessandro buccato]

Posted on March 22, 2018 at 10:26

it

seems to be the same...

I attach the code generated with cubemx (fatfs-> user definied) and edit by me.

https://pastebin.com/XS9qEQXw

 

https://pastebin.com/1GtTHA4D

 

the GPIO PB6 in debug is always 64 (value) u.u

the micro sd card module has only CS, MISO, MOSI, SCK, VCC and GND

[Tesla DeLorean]

Posted on March 22, 2018 at 12:51

Doesn't that suggest you shouldn't be using it then?

♯ define FATFS_USE_DETECT_PIN    0 /* If you don't have the pin wired and its always high - DON'T USE IT */

[alessandro buccato]

Posted on March 22, 2018 at 14:07

I'm sorry, it is a misprint.

I set it to 1 only for a test... it was always set to 0

[alessandro buccato]

Posted on March 23, 2018 at 11:43

this is the current project, made with cubemx v4.24.0

https://mega.nz/#!HR9UhK4T!pNHlQj_W0yfI4G7ggJVWmtyBUBgjb6ePaOJaYJ9HWFQ

https://www.virustotal.com/it/file/7ff7f84912e083433c5d4da7508fb8dea09d782ee4e712aab899869d4f22e9a6/analysis/1521801773/

 

[alessandro buccato]

Posted on April 04, 2018 at 13:26

hi clive,

after a few problems, I was able to work the sd card over sdio. unfortunatelly, I am obliget to use sd card over spi, but it can't work.

can you help me? I'm not very skilled

:(

Turvey.Clive.002

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