In SX Microcontrollers, SX/B Compiler and SX-Key Tool, robotworkshop wrote: An important point to remember when using the TTL oscillator is that you should have it in a socket. It has to be removed for re-programming the SX28 chip unlike a resonator which can often be left in during programming. For debugging only the key should be connected to the OSC pins. Robert ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=263075#m263198 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)