In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote: Here is a great source for info on cards tachnology [url=http://www.epanorama.net/links/smartcards.html]http://www.epanorama.net/links/smartcards.html[/url] Here is a document describing the clock and data protocol [url=http://www.epanorama.net/pdf_redirect.php?url=http://www.hidcorp.com/espanol/pdfs/appnote_2.pdf]http://www.epanorama.net/pdf_redirect.php?url=http://www.hidcorp.com/espanol/pdfs/appnote_2.pdf[/url] regards peter ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=153698#m153794 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)