In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote: Are you initializing WKPND_B to 0 before you enable the MIWU the first time (ie before the execution of the ISR)? A side issue, are you also running the RTCC interrupt in this program as well, and if so are you aware of the potential of a missed event if you don't properly test for it? I don't remember the docs clearly explaining this potential pitfall. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=78775#m79665 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)