Thanks Bob, where would I find details of the MMC communications protocol? Thanks Graham Bob Axtell wrote: I'm doing MMC presently; boards not done yet. Looks easier than the rest, which have lots of pins and a complex interface. MMC can be R/W-accessed with a 512-byte buffer and the SPI channel. It has 7 pins and its sister, the SD Card (Secure Data) card has just 9 pins. We think that the SD card can also be read with the MMC interface, but we weren't going to use it. Molex, Amphenol, and ITT-Cannon all make MMC sockets. --Bob At 02:52 PM 7/21/2003 +0100, you wrote: >Has any one had any success interfacing one of the large storage size >flash cards (cf, smartmedia etc) to a PIC? We have been trying to >interface a Compact Flash card to a prototype we are building without >success, and are thinking of changing to a different type of media. Any >recommendations? > >Thanks > >Graham > > >--------------------------------- >Want to chat instantly with your online friends? Get the FREE Yahoo!Messenger > >-- >http://www.piclist.com hint: PICList Posts must start with ONE topic: >[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads --------------- NOTICE 1. This account can accept email & attachments up to 10M in size. 2. Federal Monitors: At request of client, some attachments are encrypted. Please DO NOT delay traffic; please reply with credentials for password. -------------- -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads --------------------------------- Want to chat instantly with your online friends? Get the FREE Yahoo!Messenger -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads