hi, I'm in need of using mmc or sd memmory card in my project but unfortunatly i don't have any idea how they works? i know they need 3.3 v for working. should this voltage be percise? I want to read and also write on it in spi mode using an avr. I've used the programm suggested in some relevant sites but it seems there is a bug in those programmes or mey be i can't used them properly.could anyone introduce me a reliable source on this issue? meny thanks
MMC cards and AVR Microcontroller
Aug 25, 2006
1 Replies
Loads of good info at:
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And lots of card details from:
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Regards,
Adrian Jansen adrianjansen at internode dot on dot net
Design Engineer J & K Micro Systems
Microcomputer solutions for industrial control
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