AVR-Chat

> For bit banged ASM stuff look at AVR300 and AVR302, I have used the
> master and it works very well. Some people think that there may be
> some merits on using the bit banged TWI as they suspect some hardware
> issue with the hardware TWI. I have some more bits if you get stuck,
> I have partially translated the C code for AVR315 (Master) into ASM but
> it is not pretty yet.

I'd prefer to use the TWI hardware.  I need this fast, and I'm in a
very limited environment, one master, and exactly four slaves.
I already implemented a "broken comms" timer, so that it will restart
if the comms hangs.  Only a truly hung hardware (broken) would stop
me.