In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: Once again... You cannot use the internal oscillator for serial communications. Change OSC4MHZ to OSCXT1 and use a 4MHz resonator. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=142883#m142904 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)