In SX Microcontrollers, SX/B Compiler and SX-Key Tool, GG24_DCX wrote: Thanks for the reply You would be correct in that the pull up resistors are external. And you are correct regarding the examples shown in 4.4. I have used those examples and they work. The problem is the example only does a "High to Low" and not a "Low to High" and if you only look a single bit that you are toggling, you will think everything is great, however if you look at the truth table in my 1st message, no matter which wake up I toggle, all of the L2H lines (RB2-6) show up as if they have been toggled (I physically monitored RB0-6 with a Yokogawa DL7480.. They are not toggling!). As far as the wakeup time, that is not a problem, I only need to know what woke the unit up so that I can record that. Timing is not that critical there(with in reason). Just as a reference I did a simple circuit on the SX proto board with simple pullups on RB0-1 and pulldowns on RB2-6. No other components to possibly influence in any other way and I still get the same truth table from the WK_PND_B I may be programming it wrong but I have tried every way and every example that I can find with no luck all though I tend to be a Harware guy, not software. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=106511#m107084 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)