Am 09.09.2016 um 11:15 schrieb Uwe Bonnes:
>
> In article <[email protected]> you wrote:
>> Hello all,
>
>> I have a Datanab TC to 1Wire that uses a MAX31850:
>
>> http://www.datanab.com/sensors/1wire-%20thermocouple-sensor-thrmcpl_k.php
>
>> The device reads fine using a DS9490R on Windows using a package I have
>> written to read the device as in the datasheet (OneWire Viewer does not
>> read temperature on the 31850).
>
>> Using a DS2483 on owfs, I get some weird stuff. According to the man
>> page here (http://owfs.org/uploads/DS1825.html), the temperature should
>> give CJC, and thermocouple should give CJC-compensated temperature.
>> These values are as follows (owfs is mounted in Celsius):
>
> Hello,
>
> this is the third attempt for a reponse:
> - First direct to the asker and Jan
> - Reply via gmane after successfull subscription.
> - and now via my normal mailer
>
> The manual page tells that the internal chip temperature is the content of
> the */temperatur* files and the cold junction compensated thermocouple
> temperature is the content of */thermocouple.
>
> The Chip has the thermocouple temperature at data[0] and the internal
> temperature at data[2]. However all other similar chips have the temperature
> at data[0].
>
> Current code only mixes up data and interpretation. Appended patch fixes the
> readings.
>
Uwe, I am not sure how we should handle this. IIRC, in the past, the
temperature values had been the way you suggest. But for some reason I
not aware anymore, this had been switched.
We have to find the reason why it's bogus as it is now.
Kind regards
Jan
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