In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: It has to do with the rise time of the power supply. Without a BOR setting the processors tries to run at very low voltages and gets "hung-up" for some reason. Some power supplies work without the BOR setting, but I always use it to be safe. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=117785#m119058 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)