we still cannot rule out the difference is in hardware.
when you say use an additional power supply, what do you mean by that? did
you connect a dc5v power supply to the gnd an +5v pins of the lcd unit?
Vajk
On Thu, Dec 12, 2013 at 6:26 PM, Bernd Lamparter <bernd.lampar...@web.de>wrote:
> Hi Jan,
>
> let me describe what I'm doing and what is happening:
> 1. Connect DS9490R to the LCD controller with a RJ12. (Before I checked
> that all wires are connected through)
>
> 2. Put this into the windows laptop, start oneWireViewer and see both
> devices listed. I can't do anything more with this software, it just shows
> both devices, the 81.xxx and the FF.yyy
>
> 3. Pull out the combination and put it into the Linux-PC (or the
> raspberryPi) instead. Start owserver -u and see only the 81.xxx when
> performing owdir /uncached.
>
> Because I heard that power supply of the LCD controller might be
> problematic. So I performed the same 3 steps with additional power supply
> with the exact same result.
>
> Conclusion:
> Both devices work with OneWireViewer, only te 81.xxx is recognized by
> owserver.
> Could there be a timiing problem? I'm trying to debug, but it is very
> difficult to find out on which function I have to look. It must be
> somewhere in ow_dir.c
>
> Ciao,
> Bernd
>
>
> *Gesendet:* Donnerstag, 12. Dezember 2013 um 15:35 Uhr
> *Von:* "Jan Kandziora" <j...@gmx.de>
> *An:* "OWFS (One-wire file system) discussion and help" <
> owfs-developers@lists.sourceforge.net>
> *Betreff:* Re: [Owfs-developers] LCD-Display controller from Louis Swart
> does not show up
> Am 12.12.2013 00:02, schrieb Bernd Lamparter:
> > It shows the adapter:81.D7BB30000000. Currently I don't have other 1-wire
> > devices connected.
> >
> That tells nothing. To check what's wrong, it's important to connect the
> LCD controller, then read /uncached. When the 81.xxxx in the DS9490R
> magically disappears when connecting the LCD controller, you have a
> power or cabling problem.
>
> Kind regards
>
> Jan
>
>
>
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