FWIW, I've had the same problem since going to owfs 2.6p1-3. I hate to
just chime in with a 'me too', but at least Thomas knows he isnt
alone :) I have a similar setup - going through a DS2409 coupler, all
DS18S20-PAR read 85C. digitemp reads everything fine. This didn't seem
to occur in 2.5p10.
It sounds like the software. Let me do some experimenting. Basically I'll
try to see if there are any other commands being sent to the bus between
initiation of conversion and reading the data.
OWFS is more complex than digitemp -- it multiplexes multiple clients
accessing the 1-wire bus and allo
try changing ds1820 sleep times
it's on top of ds1820.c file
times on ds1820 manual are smaller than owfs
Thomas Berg escreveu:
> Power is supplied, 12V 1500mA. I dont have any other versions of DS18x20
> but I have 4 of theese DS18S20-PAR and all of them returns the same
> result using OWFS. Usin
Well, I know for a fact that its not 85C outside right now and not
inside either, and I know that the DS18S20-PAR is fault free as they
work with other software.
/Thomas
Roberto Spadim skrev:
> i have some problems with pic16f877a reading 85 degree, what i do?
> read again, if it's 85 degree ok (m
Power is supplied, 12V 1500mA. I dont have any other versions of DS18x20
but I have 4 of theese DS18S20-PAR and all of them returns the same
result using OWFS. Using digitemp I get correct reading everytime. I
have some relays using DS2405 and they works gret in OWFS and they are
connected thru the
i have some problems with pic16f877a reading 85 degree, what i do? read
again, if it's 85 degree ok (maybe ds1820 are burning) if i'm sure that
it isn't at 85 degree i change the ds1820 and every thing go ok
Thomas Berg escreveu:
> Mostle hardware related tips, as other software works without an
Mostle hardware related tips, as other software works without any prblem
redaing temperatures from the same hardware-setup I strongly beleave
that this 85C problem is related to owfs somehow.
Well, here is the schematics of the 1-wire master hub
http://www.hobby-boards.com/catalog/links/6cmh1-r1/6
Ds18S20 is connected between pin 1 and pin 3.
I have moved it to the main port.
Since I´m using DS18S20-PAR I don´t think it so good ide to supply pover
to pin 3 since its internally connected to pin 1.
I´m using the 6-channel master hub from hobby-boards
(http://www.hobby-boards.com/catalog/prod
Hi all,
As I have done fairly extensive testing of various 1-wire issues I can
maybe help shed some light on possible hardware causes of seeing 85.0C
errors for those new to these issues.
In general a 85.0C reading indicates that a POR has occurred in the
chip:
The following issues are common,
die: C2
I belive too that owfs is doing this properly, but somthing goes wrong
when there is an hub connected between master and slave.
/Thomas
Mark Richards skrev:
> Thomas Berg wrote:
>> Hi again,
>>
>> Yes I can both read and set temp hi and low. I´ve read somwhere on the
>> internet that 85C
I just mentioned digitemp so that we know it´s not a hardware failure
otherwise that can be pretty anoying we you put down days of work and at
last finds out, crap its a bad soldering.
/Thomas
Tim Sailer skrev:
> On Wed, February 21, 2007 10:13, Thomas Berg said:
>
>> Well, the 1820 works with
On Wed, February 21, 2007 10:13, Thomas Berg said:
> Well, the 1820 works with the hub and digitemp. So both the hub and
> ds1820 is working.
Yes, but I never said that one or the other wasn't operational. I was
stating that it could be the way the hub is being handled. digitemp !=
owfs
Tim
--
Hi again,
Yes I can both read and set temp hi and low. I´ve read somwhere on the
internet that 85C is an error you get if you do the reading too fast
from the 1820 after you have sent the request. If I understood ow_1820.c
correct owfs is checking every 50 ms if ther is an value to fetch an if
so
Well, the 1820 works with the hub and digitemp. So both the hub and
ds1820 is working.
/Thomas
Tim Sailer skrev:
> On Wed, February 21, 2007 9:06, Thomas Berg said:
>
>> I´ve just orderd a standalone master to try the sensors with. I´m using
>> a six-channel master hu from hobbyboards today
>>
Yes. Can you read and set temphigh and templow? (i.e. is the problem only in the
temperature conversion?)
Paul Alfille
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Chris
Sent: Wednesday, February 21, 2007 8:57 AM
To: owfs-developers@lists.sourceforge.
Hi,
same Problem here, 85° means there was an error. I think Paul Alfille
was working on that?
Thomas Berg wrote:
> This seems to been handled earlier but I cant read that it has been solved.
>
> I´m using DS2409 with DS18S20-PAR. and gett constantly temperature
> reading of 85C. I´ve compiled l
On Wed, February 21, 2007 9:06, Thomas Berg said:
> I´ve just orderd a standalone master to try the sensors with. I´m using
> a six-channel master hu from hobbyboards today
> (http://www.hobby-boards.com/catalog/product_info.php?cPath=23&products_id=1511),
> so I can't use it wothout the hub funct
I´ve just orderd a standalone master to try the sensors with. I´m using
a six-channel master hu from hobbyboards today
(http://www.hobby-boards.com/catalog/product_info.php?cPath=23&products_id=1511),
so I can't use it wothout the hub functionality today. But as i
mentioned earlier the senors works
On Wed, February 21, 2007 5:08, Thomas Berg said:
> ./owread -s localhost:3000 1F.14D40400/aux/10.B4E838010800/temperature
> Returns
> 85
OK, looks like you have it on a hub. Have you plugged it right in without
the hub to see if it works there?
Tim
--
Tim Sailer
Coastal Internet, Inc.
www.
./owread -s localhost:3000 1F.14D40400/aux/10.B4E838010800/temperature
Returns
85
/Thomas
-
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
This seems to been handled earlier but I cant read that it has been solved.
I´m using DS2409 with DS18S20-PAR. and gett constantly temperature
reading of 85C. I´ve compiled latest version from cvs and it didn´t make
any different. When using digitemp i get correct readings all the time.
/Thomas
21 matches
Mail list logo
