Below, is the SD card reader I would like to use. It's using SPI.

On an Arduino I got it to work (using SPI).

However, I want to test it on a STM32F103C8T6, and later use it in STM32F407VET6. However, I see both the F1 and F4 can use the FATFS file system, which I need, but only the F4 has the SDIO peripheral (the F1 has not).

But since it is an SPI SD reader, I don't think I will need SDIO anyway. However, still I wonder how to control it. Should I find out myself what SPI commands I should sent or are there better ways? Or should I get an SD card reader without SPI?

For my project, the requirements regarding SD are pretty low. I want to read one file from it, from max. 128 KB, and I don't care much about the speed (within one second is good enough). Maybe later I want to write to it too (also no fast time restrictions).

What would be the easiest way to read from this type of SD card reader?

I would rather use CubeMX and System Workbench (Eclipse).

SD card reader

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    \$\begingroup\$ This is not a SD-Card reader with SPI Interface, but a breakout board from SD-Card to a pin header. SD-Cards have a SDIO and SPI interface as standard. \$\endgroup\$ – Arsenal Sep 1 '17 at 8:07
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    \$\begingroup\$ @Arsenal ... Thanks Arsenal, in this case I think SPI is good enough, especially if I can combine it with FATFS (I already asked for an example to filo) \$\endgroup\$ – Michel Keijzers Sep 1 '17 at 9:37

The easiest way if of course SPI. I am not sure if SPI protocol is the only one publicly available.

Software side - use FATFS, there is an STM32F100 demo code already.

  • \$\begingroup\$ Thanks ... I was unaware the SD card in itself uses already SPI. And FATFS seems indeed logical to use. Where can I find the demo code (STM32F100)? \$\endgroup\$ – Michel Keijzers Sep 1 '17 at 9:36
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    \$\begingroup\$ In the stm32 directory of FatFS zipfile ;) \$\endgroup\$ – filo Sep 1 '17 at 11:53
  • \$\begingroup\$ And where can I find the STM32F100 demo code? I don't see that, thus also no stm32 directory. \$\endgroup\$ – Michel Keijzers Sep 1 '17 at 12:40
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    \$\begingroup\$ elm-chan.org/fsw/ff/ffsample.zip \$\endgroup\$ – filo Sep 1 '17 at 13:14

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