In SX Microcontrollers, SX/B Compiler and SX-Key Tool, nige66 wrote: You are fast, thankyou. I tried removing the sx key, and cycle power, no change. Then tried witha resonator in socket and after power cycled o.k. Seems to operate the backlite on first cycle of power switch, but no RPM(freq display), then on second cycle of power works fine display reads RPM freq o.k, change freq changes display, any lines of code that standout that would cause that? I some how thought it could operate on an internal resonator, so looks like thats where I made an error. looks o.k nige ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=189836#m189841 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)