In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote: At the start of the interrupt code you have interrupt bank isrMultiplex inc isrmulti mov w,isrmulti jmp pc+w jmp isrthread1 jmp isrthread2 You must alter the value in w to be either 0 or 1 (or jmp pc+w goes beyond jumptable) interrupt bank isrMultiplex inc isrmulti mov w,isrmulti and w,#1 jmp pc+w jmp isrthread1 jmp isrthread2 regards peter ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=120259#m120262 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)