> Forgive me if I have missed something in the earlier thread, but I have
> an entire product line that uses multiple interrupt priorities on
> PIC18's. (see http://www.auto-serv.com/products/index.php3 )
> We here are in doubt that this ever was a real bug and have been using
> this feature for 2+ years w/o any problems. This has been our
> experience with 18C & F 2's & 4's.
> I have an excess of C442's in PLCC44 if that's of any help. I might even
> have a few F452's in TQFP, but these can be had just about anywhere - I
> buy from a myriad of vendors and have never had a problem, although I
> have limited experience with 18F/C2's. I do seem to recall these also
> running the same priority interrupts well also though.......

I don't know how likely the bug is to occur, but if Microchip admits to a
problem I take it seriously.  Note that multiple priority interrupts
aren't completely broken, just high priority asynchronous interrupts when
low priority interrupts are also used.


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