Taoufik El Boubkari

SPI Interface with the MMC (Multimedia Card)

Discussion created by Taoufik El Boubkari on Sep 27, 2007
Latest reply on Oct 20, 2007 by Jim Donelson
I want to communicate with a Mutimedia Card using the SPI interface of my processor MC9S12E64.
When i send a CMD0 for setting the MMC to the SPI mode, i get the correct answer (0x01) from the MMC. But when i send the CMD1 to the MMC for startting the initialisation of the MMC, i get also 0x01 us answer, it must be a zero.
Is there any application note by Freescale talking about the MMC?
Has anybody an example code for this aplication?
Think you for your fats reaction.
T. El Boubkari
Message Edited by t.dowe on 2009-10-20 11:45 PM