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Lpc2000

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Message

spi bus interfacing mmc cards

2004-06-15 by douglasbolton

Hi all

has anybody had any problems interfacing MMC cards to an LPCxx using 
the SPI interface.

I've previously interfaced to HC11 and AVR without any problems. I 
can get some cards to initialise, however some will consistently not 
initialise with the LPC. I seem to be missing the LSB in the response 
byte.

The cards which won't work with the LPCxx will work fine in my HC11 
and AVR systems.

I've tried various bus speeds without success.

Doug

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