In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: I'd say the PC is reading the data when it shouldn't. That's the only way I could see the problem happening. When the PC reads is should make sure ra.1 is set before and AFTER it reads it. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89898#m89913 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)