In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote: Read 'understanding serial I/O' in the sxwiz help. Scroll down to Using Interrupt Driven SIO Routines You need to set TIMEBASE 10.417 ' 9600 baud bit-time' change the timebase value for other baudrates. For non-interrupt use, I think the sxwiz compiler automatically adjusts for the given clock frequency. 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#m153701 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)