> I expect that Michael has already thought about the error-propogation
> problems that the round-robin scheme presents.  Since _I_ can't
> think of a way (absent concentrators, hubs, and really good
> error-correction coding) to make it work reliably, I can only assume
> that:
>
> Maybe he can give us a few more details.
>

I will discuss the project in more detail - quietly... email will work.

Your guess at the design model is quite a long way off the mark, and the
PICs merely have to take the data, look at what they want from it, delay by
a known period then send it out to the next PIC.

The reason for the use of low-cost devices across the board is the need for
some 3-million pieces... these aint going to be PC/104 cards !