In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Steel wrote: The SX will accept the data...but unfortunately, the internal oscillator is not completely stable...so serial communications is iffy. An external resonator is required for serial transmissions. I just finished a project which very clearly demonstrated that... :S ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=167039#m167320 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)