stm32f4discovery connection with sd/mmc card

armindavatgaran · ‎2014-03-16

Posted on March 16, 2014 at 22:17

Hello

I want to connect a SDcard to stm32f4discovery .

A typical sdcard has CMD , CLK , DAT[0:3] , GND & VDD pins .

how should this pins be assigned to SDIO related pins( D0...D6 , cmd & ck ) in stm32f407vgt6?

Can sdcard's power be supplied from stm32f4discovery? how ?

Thanks .

Tesla DeLorean · ‎2014-03-16

Posted on March 16, 2014 at 23:35

Suggest you review some schematics, say the STM3240G-EVAL, and STM32F4-DIS-BB

Based on the code I ported to the STM32F4-Discovery

''The Micro SD Slot/Socket is expected to be wired as follows

CARDDETECT = PB15 (Retargetable)

CLK = PC12

CMD = PD2

D0 = PC8

D1 = PC9

D2 = PC10

D3 = PC11

VDD = 3V

VSS = GND

PC10 (SCLK) and PC12 (SDIN) potentially conflict with the CS43L22''

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