In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Chris Savage wrote: Oh wow Howard! I didn't even see that! So it seems the code is not returning properly at all. In fact it would/should hit the other OPTION command, but I'm not sure the effect of never returning from the interrupt.the shadow registers would not be restored nor would the PC be popped from the interrupt stack. Oh this is going to get messy. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=363831#m366463 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2009 (http://www.dotNetBB.com)