STM32 SD

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Name	Pin on SD	F411	F405	Description
DAT3	1	PA8		Serial Data 3
CMD	2	PA6		Command
GND	3	N/C		Not connected/used on micro-SD
VCC	4	3.3V		Power supply
CLK	5	PB15		Clock
GND	6	GND		Ground
DAT0	7	PB4		Serial Data 0
DAT1	8	PA8		Serial Data 1
DAT2	9	PA9		Serial Data 2

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