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demir
Senior
February 16, 2024
Solved

SD Card no file system error.

  • February 16, 2024
  • 4 replies
  • 6782 views

Hi,

I would like to make an application to access micro sd card via SPI from STM32F407VG-DISC1 board. I have configured the pins as seen in table below.

Main file is also attached. 

However, when I run the application I get FR_NO_FILESYSTEM error. My card is formatted as FAT32. It is class4 2GB micro SD card. 

When I remove the SD card then I received another error that is FR_NOT_READY. So, this got me thinking that, I have made proper connections, but there is problem with the code.

Could you please point me to the right direction ?

 

STM32F407VG-DISC1HW125 SD CARD MODULE
PC2 MISO PIN
PC3MOSI PIN
PB10 SCK PIN
PB12 GPIO_OUTPUT
GNDGND
5VVCC



 

Best answer by demir

Hi @Andrew Neil 

I came to know that SD Card needs some to settle. So, the only I have done is that, I added some delay before mountin the SD card as below. Hope it helps.

demir_0-1708351527727.png

 

 

4 replies

AScha.3
AScha.3
Super User
February 16, 2024

Hi,

Just a question: F407 has SDIO for sd-card access -- why you dont use it ?

 

AScha3_0-1708084970675.png

+

Keep wires to sd-card short , < 50mm is ok; long wires will make problems....

"If you feel a post has answered your question, please click ""Accept as Solution""."
D
demirAuthor
Senior
February 16, 2024

Thanks Ascha.3.

This is the task actually.

Andrew Neil
Andrew Neil
Super User
February 16, 2024
@demir wrote:

When I remove the SD card then I received another error that is FR_NOT_READY. So, this got me thinking that, I have made proper connections,

Not necessarily.

The card present/not-present might just be detected on a switch ...

Have you tried tracing back to where the error is actually raised?

 

@demir wrote:

HW125 SD CARD MODULE

Do you mean one of these?

AndrewNeil_0-1708086235076.png

Do you have a link to its datasheet?


 

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
D
demirAuthor
Senior
February 16, 2024

Thanks Andrew.

Yes, I use one of those. I searched but cant find the datasheet.

I ve debugged the code, please see the attachment. This is where code returns no file system.

Andrew Neil
Andrew Neil
Super User
February 16, 2024

If you can't find a datasheet, how can you be sure you have the correct connections?

:flushed_face:

 

@demir wrote:

This is where code returns no file system.

So step into find_volume() to find what causes it to return that error

AndrewNeil_0-1708090561676.png

 

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
D
demirAuthor
Senior
February 19, 2024

Cant mark it as the solution, there is no option to select.

Andrew Neil
Andrew Neil
Super User
February 19, 2024

You have to un-mark one before you can mark a different one

Clikck on the AndrewNeil_3-1708356226886.pngin the top-right of the post:

AndrewNeil_1-1708356181338.png

Then choose 'Not the solution':

AndrewNeil_0-1708356121086.png

#UnmarkSolution

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    HDaji.1
    HDaji.1
    Senior
    April 10, 2025

    Hi @demir 

    Did you figure it out this solution yourself or you follow some examples?
    I only find a kind-of-official tutorial by STM staff, which, however, uses SDIO, not SPI.

     

    Best

     

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