>
>
> The PC tells the reel controller (PIC) what the safe positions are when
> the game starts.
>
> So it isn't hard coded cause the reel strips are not the same in all
> games.



I see.  And you were able to pull up that data from the PICs you got, and
it's correct, which tells us that the PC-Pic communication is working, at
least on these samples.

So, we need something that will hose up an EE read (xtal problem could do
that, or code timing problem)  or something later in that will hose the data
after it was succesfully read, which looks like a more generic code problem,
though an xtal problem could do that too..
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist