In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: What are you plugging the blitz into ? Make sure you have 5.0 volts at the programming header. Make sure the SX has the MCLR pin pulled high. Make sure the SX chip is not defective. Try another chip. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=229999#m230003 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)