> One method that I have used involves the use of three flag bits.
> One flag bit is called main_wants_new, one is called isr_wants_new,
> one is called allow_data_in_isr, and the last is called data_ready.

That's pretty clever, saving 4 flags in 3 bits ;-)


*****************************************************************
Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, olin@cognivis.com, http://www.cognivis.com

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu