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Paul Alfille | 1 Jan 2009 16:53
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Re: OWFS & Squidge

I notice that the squidge has a GPIO pin with kernel support for 1-wire on it (w1 driver). The w1 support for owfs is under rapid development (waiting on some kernel patches that are in the pipeline). Soon it should be possible to use owfs with the internal GPIO pin as the bus master. You'll still need to compile owfs for the squidge.

Paul Alfille

On Wed, Dec 31, 2008 at 11:33 AM, Stuart Poulton <Stuart.Poulton <at> astro.le.ac.uk> wrote:
> Hello!
> **Said humorously**
> Have you?
>
> **Serious mode back.**
> All kidding aside, I believe these platforms target the European
> market (and maybe Asia.) so they may not be imported to this country.
>
> The one selling point for me is that the developer chose to use
> Slackware-12.1 (now Slackware-12.2 is out.) for his work.
>
> And as with nearly all routers this looks like an excellent example of
> an embedded platform.

Well, I'm able to test, I've got one of the routers (being in the UK
so target market) .

I guess I should download the devel environment and give ti a go.

Cheers

Stuart

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Gregg Levine | 1 Jan 2009 17:15
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Hack a Day is considering One-Wire devices (again)

Hello!
At this location http://tinyurl.com/8ng8af the Hack A Day site is
considering the best way to talk to the DS2431 parts, and as usual
getting it wrong.

They're using a Rube Goldberg contraption of theirs to do the
interface. It had completely zoomed past their minds that Maxim and
seven or eight others make excellent interfaces to communicate with
the One-Wire parts.

(I include those of us I know who've bought the USB one, and kits
which came with the serial ones, and those of use who're building
their one wire interfaces.)

Naturally their software is properly configuring the device, but it's
a worse kludge then any first program has a right to be, so I noted
that on LInux there is the OWFS project for managing it properly.

And of course their comments indicate several missed points, and one
other right one.
--

-- 
-----
Gregg C Levine gregg.drwho8 <at> gmail.com
"This signature was once found posting rude
 messages in English in the Moscow subway."

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Jaap Struyk | 2 Jan 2009 09:57
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Re: max owfs polling time

njh schreef:

>> That sounds quite good, I will give that a try later this year when I
> 
> Hehe, better hurry up!

:-) bet I am too late now?

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Matthias Urlichs | 2 Jan 2009 10:13
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Re: max owfs polling time

Hi,

Jaap Struyk:
> One thing remaining do, is there a way to reset the counters after every
> reading?

No. Why? Just remember the old value and subtract.

--

-- 
Matthias Urlichs   |   {M:U} IT Design  <at>  m-u-it.de   |  smurf <at> smurf.noris.de
Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de
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Jaap Struyk | 2 Jan 2009 10:55
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Re: max owfs polling time

Matthias Urlichs schreef:

>> One thing remaining do, is there a way to reset the counters after every
>> reading?
> 
> No. Why? Just remember the old value and subtract.

Yes, but the engine gives 2 counts every rotation so at idle it's 30 per
second and at full throttle it's 300 per second.
At a race  we have about 1 hour idle time (warming up, driving to the
track) and 1 minute full throttle (3 runs) so that is 30*60*60 + 300*60
= 126000 counts for each race, 15 races a year not counting various test
at our own yard, will the counter end one day? or will it start again at
zero then?

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Matthias Urlichs | 2 Jan 2009 11:24
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Re: max owfs polling time

Hi,

Jaap Struyk:
> = 126000 counts for each race, 15 races a year not counting various test
> at our own yard, will the counter end one day? or will it start again at
> zero then?
> 
It'll start at zero when you remove power. Don't tell me you'll never
power the thing down.

It'll also wrap (i.e., start at zero) after 32bits or whatever.

--

-- 
Matthias Urlichs   |   {M:U} IT Design  <at>  m-u-it.de   |  smurf <at> smurf.noris.de
Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de
v4sw7$Yhw6+8ln7ma7u7L!wl7DUi2e6t3TMWb8HAGen6g3a4s6Mr1p-3/-6 hackerkey.com
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I am a computer. I am dumber than any human and smarter than any administrator.

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do | 2 Jan 2009 14:51
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1-wire LCD isn't visible on OWFS

 

Hi  Everyone,

 I'm using OWFS for aquaristic and egg breeding projects and I'd like to use an LCD to make easier

the environment monitoring for incubators and aquariums. Generally an openwrt whiterussian was used with

an USB host adapter DS9490  for OWFS with no problem. I've purchased a 1-wire LCD from Mr. Swart and I was

able to see it with Maxim's OneWireViewer among my other units but the device disappears as I try it with OWFS

either on a PC or openwrt. In the logs I found the ID of the LCD but I wasn't able to send any message to it using

ow tools.

 Since I saw that this device may be supported by OWFS I'd like to ask that has anyone succeeded to attach it 

to her/his 1-wire net and see it with OWFS directly, please?  I powered it with USB's +5V, connect its OW pin and use 1 GND for OW_GND and GND - they are common on the unit. 

 

Thanks in advance for responses

Best Regards 

-- Peter Kerese 

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Paul Alfille | 2 Jan 2009 16:24
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Re: 1-wire LCD isn't visible on OWFS

Use --usb_regulartime on the command line and tell us if it works. I think the LCD timing is a little more stringent.

Paul Alfille

On Fri, Jan 2, 2009 at 8:51 AM, do <do <at> ww55.hu> wrote:

 

Hi  Everyone,

 I'm using OWFS for aquaristic and egg breeding projects and I'd like to use an LCD to make easier

the environment monitoring for incubators and aquariums. Generally an openwrt whiterussian was used with

an USB host adapter DS9490  for OWFS with no problem. I've purchased a 1-wire LCD from Mr. Swart and I was

able to see it with Maxim's OneWireViewer among my other units but the device disappears as I try it with OWFS

either on a PC or openwrt. In the logs I found the ID of the LCD but I wasn't able to send any message to it using

ow tools.

 Since I saw that this device may be supported by OWFS I'd like to ask that has anyone succeeded to attach it 

to her/his 1-wire net and see it with OWFS directly, please?  I powered it with USB's +5V, connect its OW pin and use 1 GND for OW_GND and GND - they are common on the unit. 

 

Thanks in advance for responses

Best Regards 

-- Peter Kerese


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Jaap Struyk | 2 Jan 2009 16:28
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Re: max owfs polling time

Matthias Urlichs schreef:

> It'll start at zero when you remove power. Don't tell me you'll never
> power the thing down.

There is a small battery soldered on it... ;-)

> It'll also wrap (i.e., start at zero) after 32bits or whatever.

I suppose that is not done via owfs? (if it doesn't crash when max
number size reached there is no need for a reset anyway))

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Paul Alfille | 2 Jan 2009 16:36
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Re: max owfs polling time


if you want a "delta" counter, it's not hard to add it to owfs.

Paul Alfille

On Fri, Jan 2, 2009 at 10:28 AM, Jaap Struyk <japie <at> minimumrisk.nl> wrote:
Matthias Urlichs schreef:

> It'll start at zero when you remove power. Don't tell me you'll never
> power the thing down.

There is a small battery soldered on it... ;-)

> It'll also wrap (i.e., start at zero) after 32bits or whatever.

I suppose that is not done via owfs? (if it doesn't crash when max
number size reached there is no need for a reset anyway))


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Gmane