How to use SDIO interface for SD Card in STM32F4 ?

[kadir ustun1]

Hello, I use SDIO interface to SD Card. I use FATs library. But I want to use SDIO interface. How do I do ?

[Tesla DeLorean]

Interface to what?

You should perhaps look at the SDIO library code, and associated reference manual documentation, and familiarize yourself with the command/response model, and data transfer phases.

[kadir ustun1]

I see thank you. I am try it.

[Tesla DeLorean]

What are you trying to actually do? Interface to a WiFi modules or some not-card device?

There might be some other examples of that.

The sector reading level is exposed in the FatFs DISKIO layers, and the F4 should also have SDIO examples, again reading/writing sectors directly to the media.

[kadir ustun1]

now I use FatFs library to write/read SD card. I did not find SDIO examples

[Tesla DeLorean]

STM32Cube_FW_F4_V1.21.0\Projects\STM324xG_EVAL\Examples\SDIO

[kadir ustun1]

Thank you for answered. I found this example now.

[kadir ustun1]

Hello, How to read certain line in the text ?

[Tesla DeLorean]

Not sure I understand the question.

If you want to understand how file data is stored in the blocks, and managed at a file/cluster level, you should read some documentation on the FAT File System, probably some MSDOS era manuals and the like which cover the mechanics.

[kadir ustun1]

Thank you for your answered. I willl read