AVR-Chat

David Collier wrote:

> The Lin-bus does look like a good candidate - very frustrating that my 
> vehicle supply is 24V, but I can live with that.

Some LIN bus transceivers come with voltage regulators. I believe the 
Atmel one does; Freescale (the Semiconductor Company Formerly Known As 
Motorola) also tend to put beefy regulators on their automotive parts, 
though I don't know about their LIN devices. (For instance, their 
(first, larger) efield sensor chip has both a supply regulator and a 
self-monitoring lamp driver).

> question is - can I do it on a micro which doesn't have a UART... could 
> be fun and games. I feel a 2313 coming on.

The USI is pretty easy to use, along with the timer and/or edge 
triggers. Atmel have sample code for this.


Thanks,
-- 
Ned Konz
ned@bike-nomad.com
http://bike-nomad.com