Harold M Hallikainen wrote: > Anyone done any interface between a PIC and Smart Media? Kieren Johnstone wrote: > http://www.chipcenter.com/circuitcellar/february01/c0201ms1.htm Andrew Warren wrote: > ... and it's all about interfacing to CompactFlash cards, which > are VERY different from SmartMedia cards. and later followed up with: > If so, I would STRONGLY recommend against attempting this with a PIC; > the RAM requirements (16K for a logical-to-physical lookup table, > plus another 2K or so for buffer/variable storage) will make it sorta > difficult. Even more recently, Jeff Bachiochi has been addressing that very topic (PIC + SmartMedia) in his column in Circuit Cellar issues #143 (June 2002) thru #146 (September 2002). See my index at http://www.dtweed.com/circuitcellar/index.htm You can follow links from there to order back issues if you need them. It actually isn't all that bad on the PIC. Yes, you need some external RAM (or EEPROM, in Jeff's case), but very little else. He's using an 18F452. Actually, he uses a *serial* EEPROM for the logical-to-physical map, which struck me as kind of pointless. In the amount of time it takes to crank through the serial protocol to do a lookup in the EEPROM, you could have done a brute-force search for the block in the SM card itself. -- Dave Tweed -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.