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SD card card-detect on DAT3 pin

ratheesh reddy46123
Prodigy 60 points
Other Parts Discussed in Thread: AM3517

Hi,

    We are working on a AM3517 based custom board with Micro SD card connector without a separate card-detect pin connected to GPIO of host processor(as in Craneboard).

According to SD card spec, DAT3 pin can be used for card detection purpose. 

Has anyone tested this functionality? Can you point me a sample code to implement the same?

 

Thanks in advance,

Ratheesh