In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: What frequency are you clocking the SX ? If you use a frequency that the key cannot generate, that is what happens. Try 20MHz, I know that works. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=318676#m318729 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2009 (http://www.dotNetBB.com)