On Tue, 13 Apr 2010 11:36:35 -0400, Paul Alfille wrote:

> Is that Family code 42? Or the last few digits of the unique ID portion?

The latter. Plus command code 42, with a few to-be-determined sub-
functions like "send feature bits" or "send exception log" or whatever.

My basic thinking is that I want to do devices which behave almost like
standard Dallas devices, except for certain interesting differences
(if I re-implement the DS2423 counter, why limit myself to just two
inputs -- an ATtiny84 has ten free pins (eleven if you disable /RESET)?)
which don't really warrant allocating a new device ID; there aren't
_that_ many free.

Thus I'd rather distinguish my software devices by (ab)using the ID space
and implementing a special command to figure out implementation details,
if necessary.

> Hobbyboards uses EE and EF for the ultraviolt meter and a planned
> series of slaves.

*hint* these are missing from http://owfs.sourceforge.net/family.html

-- 
Matthias Urlichs


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