In SX Microcontrollers, SX/B Compiler and SX-Key Tool, stef wrote: Hi peter I read the section on serial I/O but wen I use timebase 10.417 and try to compile the compiler is generating an error. "timebase is out of range. Use higher frequency clock". Des that maen that At 4Mhz I can't use 9600 baute??? If i step over to 50 Mhz I need to use an external cristal?? stef ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=153698#m153703 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)