CODEWITHSUNDEEP
raspberry-pisd-cardspimmc
John
John

Reputation: 77

How to write a SD/mmc program with Raspberry Pi

I bought a SD module like this. I'd like to learn SD protocol with Raspberry Pi. I tried to write a example code with SPI mode. This is my example code.

I sent CMD0(0x40 0x00 0x00 0x00 0x00 0x95) to SD module, and I expect I can receive 0x01(in idle state). My example code received 0xff. How to modify my code to do? Where can I find SD/MMC sample programs with SPI mode?

Upvotes: 0

Views: 342

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