Example code for stm32f4 SD card read via SPI

Param sivan · ‎2018-02-20

Posted on February 20, 2018 at 11:27

Hi,

Kindly help me to find out the example code for read/write the SD card via SPI. I am trying to write or copy the files both USB disk and/or SD card. Please advice.

https://community.st.com/tags♯/?tags=stm32f4%20debug%20systemworkbench

4spi &sharpstm32f4 hal driver

https://community.st.com/tags♯/?tags=iar%20embedded%20workbench

â€Œ

#stm32f4-debug-systemworkbench #sd-card-mmc-stm32cubemx #iar-embedded-workbench #sd-spi-sdio

Andrew Neil · ‎2018-02-20

Posted on February 20, 2018 at 11:29

http://www.lmgtfy.com?q=SD+Card+SPI+STM32

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.

Tesla DeLorean · ‎2018-02-20

Posted on February 20, 2018 at 12:28

There should be the AdaFruit shield code under the HAL BSP directories, and some FatFs code in the Application directories.

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Andrew Neil · ‎2018-02-20

Posted on February 20, 2018 at 12:38

http://elm-chan.org/fsw/ff/00index_e.html

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.

Tesla DeLorean · ‎2018-02-20

Posted on February 20, 2018 at 15:38

Command level SPI SD routine

STM32Cube_FW_F4_V1.16.0\Drivers\BSP\Adafruit_Shield\stm32_adafruit_sd.c

Board level SPI SD support routines

STM32Cube_FW_F4_V1.16.0\Drivers\BSP\STM32F4xx-Nucleo\stm32f4xx_nucleo.c

Relatively portable across a number of STM32 platforms/families.

Pretty low performance, I recommend 4-bit SDIO to deliver any sort of usable speed.

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Param sivan · ‎2018-02-28

Posted on February 28, 2018 at 15:58

Thanks for the link. I had ported the code, but Icouldn't put the SD in the idle state (SD_GoIdleState). I am using SanDisk16 GBmicro sd card. I have tested the data signals of command bytes, it is sending perfectly. The response of sendSD_ANSWER_R1_EXPECTED is 224 not 0x Kindly help to troubleshoot this bug.

Please confirm,

SD_IO_CSState(1) means just HIGH the CS line , Is it? Since most of the data are written to the SD while the CS line is HIGH.

Thanks.

#stm32 spi

#sd%20card%20mmc%20stm32cubemx

‌

#sd%20spi%20sdio

‌

Tesla DeLorean · ‎2018-02-28

Posted on February 28, 2018 at 17:15

I'm afraid I can't provide resources to debug this, I can however confirm that the software, other than the multi-sector issue highlighted in another thread, does work properly for SDHC/XC cards.

SD_IO_CSState(1) drives the CS line High, while

SD_IO_CSState(0) drives it low. The commands and responses are sent while the pin is low. Some 0xFF sequences are sent with it high the clear the interface.

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Param sivan · ‎2018-03-07

Posted on March 07, 2018 at 14:57

Hi Clive,

I am getting FR_NOT_READY error after disk_initialize() function. I am testing on the Sandisk uSdHC- 16 GB card .

nico michiels · ‎2018-04-10

Posted on April 10, 2018 at 13:28

Hey Param,

I want to do the same thing as you! Now I also run into problems when interacting to the SD card with the FatFs.

Did you achieve to get it working? I did achieve to compile the project as described above but opening the SD card gives me an error.

Kind regards

Nico

Daniel Koster · ‎2018-05-09

Posted on May 09, 2018 at 19:07

I wrote this program (Atollic Studio) for an STM32L4 and it worked for me (tested on 4GB and 16GB cards only).

Hope it helps!

https://embdev.net/topic/451203#5417501