I am working on interfacing a SanDisk MultiMedia Card flash to a
PIC.

So far, I am powering it up and sending what looks to me and my
logic analyzer to be a correct command.  However, the MMC is not
answering.

Anyone out there have any experience with these MMCs?  I need a
sanity check.  One of the things I'm not sure about is whether I've
got the CRC right.  Anyone have working code?

Thanks,

Barry.
------------
Barry King, KA1NLH
Engineering Manager
NRG Systems "Measuring the Wind's Energy"
Hinesburg, Vermont, USA
www.nrgsystems.com