On Sun, 6 Aug 2017 22:10:11 +0200
Jan Kandziora <j...@gmx.de> wrote:

> Am 06.08.2017 um 18:52 schrieb Michael Hughes:
> > 
> > I am using the ow C API to read all of my Dallas 1-Wire devices.
> > I do a OW_init("/dev/cuao0").  I then go in to a loop and use
> > OW_get to read each device.  I use the following line to read the 
> > voltages:
> > 
> > OW_get( "/uncached/1F.49D100000000/main/20.EDCD00000000/volt.all", 
> > &buf, &s );
> >   
> Please give me some time to prepare such a setup of a DS2450 behind a
> DS2409 myself.
> 
> Could you test if you had the same problem when the DS2450 is directly
> connected to the host adaptor?
> 
> Kind regards
> 
>       Jan
> 
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Jan,
Sorry it has taken me so long to get back to you on this, I had a
lightening hit and it took out my RS-232 to 1-Wire interface and didn't
have a spare.

With the DS2450 connected straight to the interface, it still comes up
with strange voltages after unplugging the DS2450 from the 1-Wire
network and plugging it back in.

Here are the values before:
 owread /uncached/20.078914000000/volt.ALL;echo
     4.61507,     4.63577,     4.65366,     2.37816

and after:

 owread /uncached/20.078914000000/volt.ALL;echo
           0,           0,           0,     4.78007


-- 
Michael D Hughes

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