In SX Microcontrollers, SX/B Compiler and SX-Key Tool, PJMonty wrote: James, No, just do a: [code] mov w, #-136 retiw[/code] and the SX will generate an interrupt every 136 prescaled cycles every time. If it didn't, every software project that depended on a fixed interrupt rate and used a prescaler other 1:1 wouldn't work. [list]Thanks, PeterM[/list] ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84910#m84928 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)