The new DS28EA00 is a temperature chip that has a special "chain" mode to
tell location. Specifically there are in/out pins that tell which chip is
connected to which.
The description of chaining is at
http://pdfserv.maxim-ic.com/en/an/AN4037.pdf
and the DS28EA00 is at http://datasheets.maxim-ic.com/en/ds/DS28EA00.pdf
OWFS supports the temperature mode of the DS28EA00 (trivial) but the chain
function needs some thought.
Currently there is no way to tell the order of chips on the wire. You can
address individual 1-wire adapters, or channels of the i2c adapter, or
branches on the DS2809 or use ibuttonlink's link-locator. Within each
segment, however, the chips are pooled together.
The chain would be unique to each segment.
We could:
1. have a directory entry "chain" that would have a list (comma separated)
of the chained ID numbers
2. Have each DS28EA00 have entries for "next" and "previous"
3. Put the "chain" file under "simultaneous -- already a per-segment
directory entry.
Any thoughts?
Paul Alfille
-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems? Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
Owfs-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/owfs-developers
