In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: If you have a solid +5V, a bypass cap 0.1uF from Vss to Vdd, and a 10K from Vdd to MCLR then it should run. I'm not sure what you doing with +12 to 14 through a resistor to Vdd ??? P.S. You might also try adding BOR26 to the device line. This will help if you have a supply that doesn't rise quickly. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=243374#m243410 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)