In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: I think you have your read and write codes swapped. Read is %1010001 and write is %10100000 Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=172860#m172914 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)