In SX Microcontrollers, SX/B Compiler and SX-Key Tool, _BPM_ wrote: Provide a schematic of your entire circuit. Chances are very good your overlooking a connection. The sx shouldn't even get warm. I leave my sx-key disconnected from my sx chip all the time, with no crystal, it doesn't heat up. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=159465#m159528 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)