On Mon, May 09, 2005 at 08:11:03PM +1200, Jinx wrote: > > > incrementing untouched by s/w and you're reloading the upper > > > byte at a time when it can't be incrementing, then that contention > > > corruption shouldn't (can't ?) cause any problems > > > > Not quite. Think what happens if TMR1L is at about 0xff when > > Well, er, I did say when TMR1H can't be incrementing. That implies > that you make sure the reload is not during a time when there's the > possibility of a TMR1L rollover. Which, as you say, would probably > be early in an ISR or whatever Sorry, you're right - I read it too quickly. Cheers, Chris -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist