Jan Kandziora wrote:
Am Donnerstag, 9. Juni 2005 11:39 schrieb Paul Alfille:
You are addressing a more general problem, aggregates of 1-wire devices.
There are a few known sensors, like the pressure sensor, that use more than
one device to make a larger circuit.
I think there are two ways to handle aggregates. The first involves a DS2409
Hi. I've been pretty quiet on this list so far, so I feel a bit awkward
jumping in right here. Anyways, I have another suggestion for
identifying aggregates. You can put an EPROM device such as the DS2505
into each aggregate device and place information on that EPROM
describing the components on that device. The device could contain a
magic code to indicate it belongs to your system, then a device
identifier to indicate which type of aggregate device it is (assuming
you have more than one type) and finally a list of addresses of the
individual devices that make up the aggregate device. The address of
the DS2505 could be used to uniquely identify each aggregate device.
In fact, if this became a frequent request, it might be possible to add
a pluggable architecture into OWFS to handle these aggregates
automagically when a DS2505 is detected with the magic word -- but I'm
probably getting way ahead on this now.
ttyl
srw
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