Hi Paul,
You're probably right about the powered slave thing; never occurred to me,
but this is indeed the only powered slave on the bus at the moment. But
then on seconds thought this one does not run off its own power supply, but
relies on the HobbyBoards 8p hub's unregulated (pin 7) instead, and uses an
onboard 7805, so I guess its not the ground level difference.
br,
Ors
On Wed, Apr 30, 2014 at 2:13 AM, Paul Alfille <paul.alfi...@gmail.com>wrote:
> Hi Ors,
>
> After extensive testing I have mixed news.
>
> I can replicate your findings -- the branches don't update and look
> confused, but only with powered slaves. in this case I'm using the
> Hobbyboards UVI sensor.
>
> Using any number of passive devices works wonderfully. In fact I tested an
> extensive network of over 100 passive devices.
>
> Thus, I think the problem is hardware, but I can't tell you why. It could
> be anything including ground loops or different ground levels.
>
> Paul Alfille
>
>
>
>
>
> On Fri, Apr 18, 2014 at 4:16 AM, Ors Tiszay <listaku...@gmail.com> wrote:
>
>> Hi Paul,
>>
>> Yes, it's been sitting on my desk for a few days now. And still:
>>
>>
>> # ls -al /mnt/owfs/1F.F96B08000000/aux/
>>
>> total 0
>> drwxr-xr-x 1 root root 8 Apr 16 09:34 .
>> drwxrwxrwx 1 root root 8 Apr 18 10:10 ..
>>
>> # ls -la /mnt/owfs/1F.F96B08000000/aux/30.4CF9B8120000/
>> total 0
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 .
>>
>> drwxr-xr-x 1 root root 8 Apr 16 09:34 ..
>> --w--w--w- 1 root root 1 Apr 18 10:11 PIO
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 WS603
>>
>> -r--r--r-- 1 root root 16 Apr 16 09:34 address
>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 alias
>> -rw-rw-rw- 1 root root 12 Apr 18 10:11 amphours
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 cc
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 ce
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 coc
>>
>> -r--r--r-- 1 root root 2 Apr 16 09:34 crc8
>> -r--r--r-- 1 root root 12 Apr 16 09:34 current
>> -rw-rw-rw- 1 root root 12 Apr 16 09:34 currentbias
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 dc
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 de
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 defaultpmod
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 defaultswen
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 doc
>>
>> -r--r--r-- 1 root root 2 Apr 16 09:34 family
>> -r--r--r-- 1 root root 12 Apr 16 09:34 id
>> -r--r--r-- 1 root root 16 Apr 16 09:34 locator
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 lock.0
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 lock.1
>> -rw-rw-rw- 1 root root 3 Apr 18 10:11 lock.ALL
>>
>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 memory
>> -r--r--r-- 1 root root 1 Apr 18 10:11 mstr
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 ov
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 pages
>> -r--r--r-- 1 root root 1 Apr 18 10:11 pmod
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 ps
>>
>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_address
>> -r--r--r-- 1 root root 12 Apr 16 09:34 r_id
>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_locator
>> -r--r--r-- 1 root root 1 Apr 18 10:11 sensed
>> -r--r--r-- 1 root root 1 Apr 18 10:11 swen
>> -r--r--r-- 1 root root 12 Apr 18 10:11 temperature
>>
>> -r--r--r-- 1 root root 32 Apr 16 09:34 type
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeB
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeE
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeJ
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeK
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeN
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeR
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeS
>> drwxrwxrwx 1 root root 8 Apr 18 10:11 typeT
>> -rw-rw-rw- 1 root root 1 Apr 18 10:11 uv
>> -rw-rw-rw- 1 root root 12 Apr 18 10:11 vbias
>> -r--r--r-- 1 root root 12 Apr 18 10:11 vis
>> -r--r--r-- 1 root root 12 Apr 18 10:11 volt
>> -rw-rw-rw- 1 root root 12 Apr 18 10:11 volthours
>>
>> # cat /mnt/owfs/1F.F96B08000000/aux/30.4CF9B8120000/volt
>> 0
>>
>> # cat /mnt/owfs/1F.F96B08000000/aux/30.4CF9B8120000/type
>> DS2760
>>
>> br,
>> Ors
>>
>>
>> On Thu, Apr 17, 2014 at 3:25 AM, Paul Alfille <paul.alfi...@gmail.com>wrote:
>>
>>> Let me confirm that you physically disconnected the DS2762 rather than
>>> just external power?
>>> On Apr 16, 2014 4:05 AM, "Ors Tiszay" <listaku...@gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> I have owfs running on a Gumstix Overo Earth, with a DS9490 bus master,
>>>> which in turn is connected to a Hobby-Boards DS2409-based 8 channel hub
>>>> (bought years ago when the DS2409 was still around, wish they still were).
>>>> The bus then branches out to several directions, carrying a total of ~10
>>>> sensors, mostly DS18.20 with the odd DS18S20/HIH3610 combo thrown in, so
>>>> far using ch1 main and the aux of the hub.
>>>>
>>>> On ch2 aux I have a DS2762 based moisture meter board. Board was
>>>> working fine for a few days in test, but when I disconnected it to be moved
>>>> to its final location, I noticed that the script taking the readings every
>>>> 30 seconds kept returning values even after the board was disconnected.
>>>> More precisely, the values read are either 0 or very close to 0
>>>> (-7.8125E-05 for current), but the surprising thing is that the whole file
>>>> structure remains in place even days after the board is disconnected:
>>>>
>>>> This is what it looks like 3 days after disconnecting the moisture
>>>> meter board:
>>>>
>>>>
>>>> # ls -al /mnt/owfs/1F.F96B08000000/aux # <- this is ch2 of the hub
>>>> total 0
>>>> drwxr-xr-x 1 root root 8 Apr 16 09:34 .
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:41 ..
>>>>
>>>>
>>>> But reading the DS2762 as if it was still connected:
>>>>
>>>> # ls -al /mnt/owfs/1F.F96B08000000/aux/30.4CF9B8120000
>>>> total 0
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 .
>>>> drwxr-xr-x 1 root root 8 Apr 16 09:34 ..
>>>> --w--w--w- 1 root root 1 Apr 16 09:49 PIO
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 WS603
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 address
>>>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 alias
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:49 amphours
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 cc
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 ce
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 coc
>>>> -r--r--r-- 1 root root 2 Apr 16 09:34 crc8
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 current
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:34 currentbias
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 dc
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 de
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 defaultpmod
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 defaultswen
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 doc
>>>> -r--r--r-- 1 root root 2 Apr 16 09:34 family
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 id
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 locator
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 lock.0
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 lock.1
>>>> -rw-rw-rw- 1 root root 3 Apr 16 09:49 lock.ALL
>>>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 memory
>>>> -r--r--r-- 1 root root 1 Apr 16 09:49 mstr
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 ov
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 pages
>>>> -r--r--r-- 1 root root 1 Apr 16 09:49 pmod
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 ps
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_address
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 r_id
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_locator
>>>> -r--r--r-- 1 root root 1 Apr 16 09:49 sensed
>>>> -r--r--r-- 1 root root 1 Apr 16 09:49 swen
>>>> -r--r--r-- 1 root root 12 Apr 16 09:49 temperature
>>>> -r--r--r-- 1 root root 32 Apr 16 09:34 type
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeB
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeE
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeJ
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeK
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeN
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeR
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeS
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:49 typeT
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:49 uv
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:49 vbias
>>>> -r--r--r-- 1 root root 12 Apr 16 09:49 vis
>>>> -r--r--r-- 1 root root 12 Apr 16 09:49 volt
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:49 volthours
>>>>
>>>>
>>>> # cat /mnt/owfs/1F.F96B08000000/aux/30.4CF9B8120000/type
>>>> DS2760
>>>>
>>>> # cat /mnt/owfs/1F.F96B08000000/aux/30.4CF9B8120000/volt
>>>> 0
>>>>
>>>> # cat /mnt/owfs/1F.F96B08000000/aux/30.4CF9B8120000/current
>>>> -7.8125E-05
>>>>
>>>>
>>>> Trying the same thing (ie.reading them after they're disconnected) with
>>>> any other sensor returns file not found, as expected.
>>>>
>>>> Just out of curiosity I took this a bit further and tried reading from
>>>> 30.4CF9B8120000
>>>> via a port it was never connected to:
>>>>
>>>> # ls -al /mnt/owfs/1F.B06808000000/main/30.4CF9B8120000/
>>>> total 0
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 .
>>>> drwxr-xr-x 1 root root 8 Apr 16 09:34 ..
>>>> --w--w--w- 1 root root 1 Apr 16 09:59 PIO
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 WS603
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 address
>>>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 alias
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:59 amphours
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 cc
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 ce
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 coc
>>>> -r--r--r-- 1 root root 2 Apr 16 09:34 crc8
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 current
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:34 currentbias
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 dc
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 de
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 defaultpmod
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 defaultswen
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 doc
>>>> -r--r--r-- 1 root root 2 Apr 16 09:34 family
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 id
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 locator
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 lock.0
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 lock.1
>>>> -rw-rw-rw- 1 root root 3 Apr 16 09:59 lock.ALL
>>>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 memory
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 mstr
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 ov
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 pages
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 pmod
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 ps
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_address
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 r_id
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_locator
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 sensed
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 swen
>>>> -r--r--r-- 1 root root 12 Apr 16 09:59 temperature
>>>> -r--r--r-- 1 root root 32 Apr 16 09:34 type
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeB
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeE
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeJ
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeK
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeN
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeR
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeS
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeT
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 uv
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:59 vbias
>>>> -r--r--r-- 1 root root 12 Apr 16 09:59 vis
>>>> -r--r--r-- 1 root root 12 Apr 16 09:59 volt
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:59 volthours
>>>>
>>>>
>>>> And yet another one:
>>>>
>>>> # ls -al /mnt/owfs/1F.B06808000000/aux/30.4CF9B8120000/
>>>> total 0
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 .
>>>> drwxr-xr-x 1 root root 8 Apr 16 09:34 ..
>>>> --w--w--w- 1 root root 1 Apr 16 09:59 PIO
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 WS603
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 address
>>>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 alias
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:59 amphours
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 cc
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 ce
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 coc
>>>> -r--r--r-- 1 root root 2 Apr 16 09:34 crc8
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 current
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:34 currentbias
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 dc
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 de
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 defaultpmod
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 defaultswen
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 doc
>>>> -r--r--r-- 1 root root 2 Apr 16 09:34 family
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 id
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 locator
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 lock.0
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 lock.1
>>>> -rw-rw-rw- 1 root root 3 Apr 16 09:59 lock.ALL
>>>> -rw-rw-rw- 1 root root 256 Apr 16 09:34 memory
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 mstr
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 ov
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 pages
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 pmod
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 ps
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_address
>>>> -r--r--r-- 1 root root 12 Apr 16 09:34 r_id
>>>> -r--r--r-- 1 root root 16 Apr 16 09:34 r_locator
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 sensed
>>>> -r--r--r-- 1 root root 1 Apr 16 09:59 swen
>>>> -r--r--r-- 1 root root 12 Apr 16 09:59 temperature
>>>> -r--r--r-- 1 root root 32 Apr 16 09:34 type
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeB
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeE
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeJ
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeK
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeN
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeR
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeS
>>>> drwxrwxrwx 1 root root 8 Apr 16 09:59 typeT
>>>> -rw-rw-rw- 1 root root 1 Apr 16 09:59 uv
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:59 vbias
>>>> -r--r--r-- 1 root root 12 Apr 16 09:59 vis
>>>> -r--r--r-- 1 root root 12 Apr 16 09:59 volt
>>>> -rw-rw-rw- 1 root root 12 Apr 16 09:59 volthours
>>>>
>>>> Found this originally on 2.7p28, then quickly compiled a fresh one, all
>>>> the prints above taken with:
>>>>
>>>> # owfs --version
>>>> owfs version:
>>>> 2.9p3
>>>> libow version:
>>>> 2.9p3
>>>>
>>>> I've also tried rebooting the gum of course, no change.
>>>>
>>>> Any ideas?
>>>>
>>>> cheers,
>>>> Ors
>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Learn Graph Databases - Download FREE O'Reilly Book
>>>> "Graph Databases" is the definitive new guide to graph databases and
>>>> their
>>>> applications. Written by three acclaimed leaders in the field,
>>>> this first edition is now available. Download your free book today!
>>>> http://p.sf.net/sfu/NeoTech
>>>> _______________________________________________
>>>> Owfs-developers mailing list
>>>> Owfs-developers@lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers
>>>>
>>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Learn Graph Databases - Download FREE O'Reilly Book
>>> "Graph Databases" is the definitive new guide to graph databases and
>>> their
>>> applications. Written by three acclaimed leaders in the field,
>>> this first edition is now available. Download your free book today!
>>> http://p.sf.net/sfu/NeoTech
>>> _______________________________________________
>>> Owfs-developers mailing list
>>> Owfs-developers@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers
>>>
>>>
>>
>>
>> ------------------------------------------------------------------------------
>> Learn Graph Databases - Download FREE O'Reilly Book
>> "Graph Databases" is the definitive new guide to graph databases and their
>> applications. Written by three acclaimed leaders in the field,
>> this first edition is now available. Download your free book today!
>> http://p.sf.net/sfu/NeoTech
>> _______________________________________________
>> Owfs-developers mailing list
>> Owfs-developers@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/owfs-developers
>>
>>
>
>
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