On Tuesday 23 Sep 2003 4:17 pm, you wrote: > All right, so using "ISR" and "non-ISR" and skip > this "fore-/background" thing altogether is > better then, right ? > > Never mind, it was just a thought :-) :-) > Might be just more confusing? Either way, it is an important concept that seems to be glossed over most of the time. At the 'top' end of things people may use an off the shelf RTOS where the question becomes somewhat moot. At the very simple end of things it is not an issue. but in the HUGE space in between that represent very many time critical event driven micro based projects/products it is a crucial concept and one that deserves better coverage in the literature. ian -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu