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(This message was transferred over from our old forum)
Posted August 19, 2015
By Todd DeBoer
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On 03/24/2010, aschoonen asked, “If I’m not mistaken, the SD card interface is currently implemented in SPI mode. This is ok for SD Card and miniSD, where SPI mode is mandatory, but for microSD, SPI mode is optional.In Source\\Devices\\MassStorage\\MCI\\ are the files mci.c and mci.h, which seem to be a native implementation for MMC/SDSC and SDHC. However, these files are not included in the project file (uEZ.hzp).
We have not yet looked at the mci source files, but could you please tell us if the mci source is functional, and if so, why it is not included in the project? Is it not useful for the current LPC2478 development kit? Is there a licensing problem?”
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(Follow up post)Answered:
The hw lines are only connected in SPI mode and not able to do MCI. The old MCI code should really be removed (or at least noted as dead code) and is not actively developed.
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