In SX Microcontrollers, SX/B Compiler and SX-Key Tool, PJMonty wrote: Sailorman, You still never mentioned what you are using to run the SX chip when the SX-Key is not attached. You say the program works when you have the OSC4MHZ directive, and not when you have the OSCHS3 directive. This implies that you don't have a clock source running when the key is not attached. The OSC4MHZ directive uses the internal oscillator built into the chip itself. Also, are you clear about the difference between programming a chip using "program" (Ctrl-P) versus "debug" (Ctrl-D) ? This is something that trips up a lot of people when they first use the SX chip and the SX-Key. [list]Thanks, PeterM[/list] ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=147202#m147243 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)