Hello,
I think about the following scenario:
[owfs] +- /dev/i2c-1 --I2C-bus--+-- DS248x --w1-bus-- 1-wire devices
||
other software-++-- other I2C device
Is it possible to have "other software" communication with "other I2C
d
Dnia 17.04.2012 o 18:24 Jerry Scharf
Jerry Scharf napisał(a):
> Patryk,
>
> very cool. I need to ponder how to solve the need for greater +5 power
> in a reasonable mechanical configuration. The rest could fit nicely
> inside the connector shell of the VGA connector.
>
> One question. Does the
Patryk,
very cool. I need to ponder how to solve the need for greater +5 power
in a reasonable mechanical configuration. The rest could fit nicely
inside the connector shell of the VGA connector.
One question. Does the 2482-800 look like 8 different buses or one bus
plus a switch? If I send a
Dnia 08.04.2012 o 16:56 Patryk Patryk
napisał(a):
There was a bug when using --i2c=ALL:ALL which Paul corrected. Now it
works and enumerates all /dev/i2c in search for suitable 1-wire master.
However the problem in my case was that I mistakenly used 60 Ohm resistors
too pull up SDA and SCL
Dnia 08.04.2012 o 14:55 Paul Alfille Paul Alfille
napisał(a):
> Well, there certainly shouldn't be a seg fault in the detection code!
>
> I see that the debug message actually is the culprit. The CVS version is
> now corrected. Can you pull from that or should I send you version to
> test?
Well, there certainly shouldn't be a seg fault in the detection code!
I see that the debug message actually is the culprit. The CVS version is
now corrected. Can you pull from that or should I send you version to test?
Paul Alfille
On Sun, Apr 8, 2012 at 7:06 AM, Patryk wrote:
> I'm trying to
I'm trying to get DS2482-800(i2c-1wire) co runnings. The easiest way to
test it seemed to be using VGA connector i2c. I connected it all on a
breadboard but when I start owfs I get errors.
modprobe i2c-dev
owfs --debug --i2c=ALL:ALL /mnt/owfs
I get no valid devices found
If I run it with debug I g
Am Montag 25 April 2011, 03:28:27 schrieb Paul Alfille:
>
> I2C is a little different. It isn't enumerated by the kernel, and I'm
> not what needs to be "reconnected". Do you think just closing and
> reopening the device would do the trick? What kind of errors do you
> see that indicate the i2c co
Hmm...
I2C is a little different. It isn't enumerated by the kernel, and I'm
not what needs to be "reconnected". Do you think just closing and
reopening the device would do the trick? What kind of errors do you
see that indicate the i2c connection was lost?
Paul Alfille
On Sun, Apr 24, 2011 at 4
Hello Paul (and anyone interested),
sorry for being so silent the last year -- my focus in developing drifted a
little away from onewire.
I vaguely remember a long time ago you have implemented reconnecting OWFS to
the USB hostadapter when USB failed. I had a setup where I could trigger it
eas
Wow Jan,
It sounds like a simple VGA / DS2482-x00 or DVI / DS2482-x00 adapter
would be easy to build, and would be supported under OWFS.
Each could have 8 1-wire ports.
Paul Alfille
On Fri, Jun 26, 2009 at 5:36 AM, Jan Kandziora wrote:
> If your mainboard doesn't have a pin header for I2C, you
Am Freitag, 26. Juni 2009 schrieb Gregg C Levine:
> That is as I remembered it, regarding the motherboard and its attachment.
> But of course not the reasoning behind it. I, myself personally, haven't
> chosen an appropriate motherboard for this project.
>
If your mainboard doesn't have a pin heade
@lists.sourceforge.net
> Subject: Re: [Owfs-developers] I2C and One-Wire and OWFS
>
> Am Donnerstag, 25. Juni 2009 schrieb Gregg C Levine:
> >
> > Now my question, how did one of us make use of the features on the
DS2482
> > on or around a motherboard to control the
Am Donnerstag, 25. Juni 2009 schrieb Gregg C Levine:
>
> Now my question, how did one of us make use of the features on the DS2482
> on or around a motherboard to control the One-Wire access methods?
>
I use the Kontron KEEX-4000 motherboard as the base for my cash register. This
board has the int
Hello!
In a book I have here on Linux and Robotics, the author proposes using
One-Wire sensors to do something specific. He accesses them then using the
DS2482 via the SMB bus which besides being a subset or even a superset of
the I2C bus resides on the DIMM connectors.
I believe he's using the dr
I confirm that p15 solved also the issue about channel selection. !=)
thanks
2009/2/18 Paul Alfille :
> Very nice!
>
> You can share the info as you've done here, or
> 1. create a diff patch
> or
> 2, become an owfs developer and get CVS access to add your changes directly.
>
> It mostly depends
Very nice!
You can share the info as you've done here, or
1. create a diff patch
or
2, become an owfs developer and get CVS access to add your changes directly.
It mostly depends on how actively you plan to add to the program.
By the way, you change in in 2.7p15 !
Paul
On Tue, Feb 17, 2009 at
Hi Paul,
I already identified and corrected the first enumeration prob.
see attached file...
by the way, what is the best way to share such info?
Pascal
2009/2/17 Paul Alfille :
> Thanks for the feedback (It's ha4rd to test without an i2c device). I'll fix
> it for the next release (soon).
>
>
Thanks for the feedback (It's ha4rd to test without an i2c device). I'll fix
it for the next release (soon).
Paul
On Tue, Feb 17, 2009 at 4:16 AM, Pascal Baerten wrote:
> Hi,
>
> I was very happy to see the p14 release that added the APU feature.
> However, I should reports some problems.
>
> My
Hi,
I was very happy to see the p14 release that added the APU feature.
However, I should reports some problems.
My configuration is a Debian 2.6.26-1-ixp4xx NSLU2
with i²C connection to two DS2482-800 chips (/dev/i2c-0 at adress 0 and 1 )
i2cdetect 0
0 1 2 3 4 5 6 7 8 9 a b c d
Jan Kandziora's design is now placed at
http://www.owfs.org/index.php?page=i2c-parallel-port-design
Paul Alfille
On 2/6/07, Jan Kandziora <[EMAIL PROTECTED]> wrote:
Am Dienstag, 6. Februar 2007 08:30 schrieb Stuart Poulton:
> Dear All,
>
> Does anyone have experience of working i2c interfaces
Am Dienstag, 6. Februar 2007 08:30 schrieb Stuart Poulton:
> Dear All,
>
> Does anyone have experience of working i2c interfaces for either
>
> DS2482-100 , DS2482-800, initially something parallel port based would
> be ideal.
>
I posted a schematic a while ago. To avoid cluttering the list, I mail
Dear All,
Does anyone have experience of working i2c interfaces for either
DS2482-100 , DS2482-800, initially something parallel port based would
be ideal.
Cheers
Stuart
-
Using Tomcat but need to
Am Donnerstag, 21. September 2006 20:20 schrieb Roberto Spadim:
> have any PCI card?
>
Any i2c adapter the linux kernel has drivers for will work. To build an
interface card, the Philips PCF8584 chip is your choice. You could hook up a
PCF8584 chip to an EPP parallel port, too.
Maybe there are
have any PCI card?
-
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Am Donnerstag, 21. September 2006 18:40 schrieb Jan Kandziora:
> Am Donnerstag, 21. September 2006 15:19 schrieb Roberto Spadim:
> > from where can i get i2c form smbus?? where can i find it in my
> > computer?? thanks ;)
>
> It's somewhere on the mainboard. Usually, one will hook it up to the RAM
Am Donnerstag, 21. September 2006 15:19 schrieb Roberto Spadim:
> from where can i get i2c form smbus?? where can i find it in my computer??
> thanks ;)
>
It's somewhere on the mainboard. Usually, one will hook it up to the RAM
sockets, where an i2c is put onto for the SPD EEPROM.
from where can i get i2c form smbus?? where can i find it in my computer??
thanks ;)
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Am Donnerstag, 21. September 2006 05:10 schrieb Roberto Spadim:
> hello guys have any i2c adapter to pc?? that work with linux
> i'm using today 2480, but i want use DS2482-800 or DS2482-800
> can i use then??
>
You can make a bit-banging adapter yourself. See
/usr/src/linux/Documentation/
1. DS2481-x00 is supported, fully.2. The PIC (or other microprocessors) have been brought up a few times.I have a proposed serial communication scheme (very light-weight) that we could implement. You have think about how much of the smarts in in your microprocessor, and how much is in the host.
3.
can i use pic to make rs232- i2c converter??? does ds2482 allow always
400khz? or we need to change speed??? i don't need we can use pic to
make rs232 to i2c
but what should we use with owfs? serial or i2c??? anyone want build an
pic i2c to usart with me?? i'm very good on pic and have many comp
hello guys have any i2c adapter to pc?? that work with linux
i'm using today 2480, but i want use DS2482-800 or DS2482-800
can i use then??
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The DS2482-100 and DS2482-800 1-wire adapters are now supported.
The DS2482-100 is an i2c adapter with 1 channel of 1-wire support.
http://www.owfs.org/index.php?page=ds2482-100_i2c_adapter
The DS2482-800 is an i2c adapter with 8 channels of 1-wire support.
http://www.owfs.org/index.php?page=d
That is good news. I was getting suspicious when we failed in the 27th call to triplet
One thing I didn't include was the test of SM_BUS capabilities. All that would do, if failed,
is formally tell us that the i2c adapter isn't documented to support the needed calls.
Do you know what i2c chip is
Good news: current version operates without any problem on a x86-machine with
a self-made i2c-parallel-port-adapter (see
linux/Documentation/i2c/busses/i2c-parport). Tested with a DS2482-100 and a
DS2890 digital potentiometer. Reading from and writing to this 1-wire device
works fine. Even two
Added more debugging info. It looks like there was a problem reading
from the DS2482 status register. This may show why.
Paul
On 5/23/06, Paul Alfille <[EMAIL PROTECTED]> wrote:
Ok, fixed the directory caching problem.
Paul
On 5/23/06, Paul Alfille <[EMAIL PROTECTED]> wrote:
> Thank you, Dani
Ok, fixed the directory caching problem.
Paul
On 5/23/06, Paul Alfille <[EMAIL PROTECTED]> wrote:
Thank you, Daniel!
1. Detection seems to work
2. 1-wire search fails after 27 of 64 steps, Not sure why.
3. Clearly a failed directory listing is getting cached -- unrelated error.
I'll make some
Thank you, Daniel!
1. Detection seems to work
2. 1-wire search fails after 27 of 64 steps, Not sure why.
3. Clearly a failed directory listing is getting cached -- unrelated error.
I'll make some changes to see if we can figure out why the search is
failing. It seems like a timing, hardware or d
Hello Paul,
this is the debug output from owserver:
~ $ /usr/bin/owserver --foreground --error_level 9 -p 2000 /dev/i2c-1
CONNECT: Found an i2c device at /dev/i2c-1 address 24
CONNECT: i2c device at /dev/i2c-1 address 24 cannot be reset
CONNECT: Found an i2c device at /dev/i2c-1 address 25
CONNEC
Daniel,
This is better than I expected.
With your modifications, it sounds like:
1. The chip is detected
2. Reset and the start of a device search works.
I'm uploading a more heavily "instrumented" version -- more debugging
information -- which might help us figure out the problem.
Paul
On 5/2
My first attempt with the current CVS version failed, owserver did not print
anything on the console. I cannot find where DS2482_detect() is called, thus
I added the following code to the switch() statement in LibStart():
...
case bus_i2c:
ret = DS2482_detect(in);
break;
...
(Is th
The version in the CVS should be a first step. Run with --foreground
--error_level=9 and look at the initial detection. We'll work through
it sequentially.
Paul
On 5/18/06, Jan Kandziora <[EMAIL PROTECTED]> wrote:
Am Mittwoch, 17. Mai 2006 22:41 schrieb Paul Alfille:
> No Jan,
>
> I've been squ
Am Mittwoch, 17. Mai 2006 22:41 schrieb Paul Alfille:
> No Jan,
>
> I've been squashing other bugs.
> Let me review --smbus is no good? Must use i2c?
>
I'm not really sure. Christoph Scheurer mused about this (in message
<[EMAIL PROTECTED]>) a couple of weeks ago:
> > I see your problem, but on t
No Jan,
I've been squashing other bugs.
Let me review --smbus is no good? Must use i2c?
I have the high-level things in place, but haven't trasfered in al the
actual i2c calls.
Since you have a test platform, I'll get it done this week.
Paul
On 5/17/06, Jan Kandziora <[EMAIL PROTECTED]> wrote:
Hello,
I had time to test out OWFS i2c support with latest version (the release of
today). The result: It doesn't work.
Now my question: Should it work? After the various problems (mostly with
sf.net) and fixes in the last weeks, I must admit I'm not really up-to-date
with owfs i2c issues.
I
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