>But of course the PCA9306DQE on that board I use for interfacing the
>1.8V I?C touch controller of the display have been mounted in the wrong
>direction. On all the prototypes. Hell, I can see the pin 1 dot even
>without a magnifying glass. (Of course, had first checked if it was
>wrong in the layout: no.)
...actually what happens if you just send the boards back and refuse to pay? As
they do not deliver what you requested for, right?
>Please, let us stop now.
Don't want to make you feel bad. I liked this share of experience, but we don't
have to continue.
>> 2. I am interested in having/getting/creating and releasing a generic
>1wire slave
>> library - best for Arduino/AVR (if possible) or else - and the
>BAE are a nice example
>> I asked him for 2. (I can understand if he does not agree - but let's
>see). As for
>> point 1. the main reason why I did not order yet is - his conditions
>are 10 chips
>> min. and I would have to solder the eval boards myself.
>>
>Oh, the BAE0911 is SOIC, so soldering wires to it isn't a problem at
>all.
Of course, my point was about time and need.
-------------------------------
>The MoaT code does have that. It can be used to implement almost
>anything, you're not limited to the MoaT protocol.
I know and I like this fact - thanks for your nice work! My reasoning here was
to have more than 1 source since all other codes I tested worked BUT with
issues and I cannot judge from here how reliable MoaT is. And MoaT was not
implemented into owfs 6 months ago.
>The only problem is that you can't do anything timing-critical and run
>1wire at the same time. The interrupt handling speed of an ATmega
>simply
>isn't fast enough; I'm even using some assembly code to speed that up.
;)))) Yes ... Good comment! Even while the AVR is idle and you code in ASM it
has a hard time to be fast enough; I tried to measure the delays between edges
with the maximum internal resolution of less than 1us (don't remember whether
it was 125 or 62.5 ns). More or less random numbers (noise) was comming out...
;)))
I am aware that AVR are not optimal but I did not check on other chips yet. May
be a Teensy does the job.
Ursin Soler
Am 11. Januar 2016 13:11:34 MEZ, schrieb
owfs-developers-requ...@lists.sourceforge.net:
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>Today's Topics:
>
> 1. Introduce support for DS28E17 (Sol?r Ursin)
> 2. Re: Introduce support for DS28E17 (Jan Kandziora)
> 3. Re: Introduce support for DS28E17 (Matthias Urlichs)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Sun, 10 Jan 2016 13:06:38 +0000
>From: Sol?r Ursin <uso...@ethz.ch>
>Subject: [Owfs-developers] Introduce support for DS28E17
>To: "owfs-developers@lists.sourceforge.net"
> <owfs-developers@lists.sourceforge.net>
>Message-ID:
> <9fde1d2c9374cb4496dc3c4b9f0ab79032102...@mbx212.d.ethz.ch>
>Content-Type: text/plain; charset="iso-8859-1"
>
>> > What happens e.g. if I want to add a totally new fancy roadrunner
>detector
>> > by ACME from which nobody else ever heard or my own sensor I
>invented
>> > myself?
>>
>> You add a "roadrunner" node to OWFS. ;-)
>>
>> Seriously, I do plan to add some generic/tutorial-ish code which one
>can
>> adapt to personal needs (and which might conceivably work without
>> modifying the OWFS daemon), but right now my priority is to get the
>use
>> cases I actually need it for up&running first.
>
>:)) Perfect, that sounds great! Important to me is it must work without
>modifying the OWFS daemon, that makes it easy to use for everybody.
>
>Thanks a lot!
>
>------------------------------
>
>> >> Sure. I think it's not possible to half-solder a chip without
>using an
>> >> oven. I've tried half-a-dozen companies which labelled themselves
>as
>> >> "professional" but they don't even get to place chips on
>prototypes all
>> >> in the right direction. What do you learn about that: You need to
>do all
>> >
>> > Ok, but I would call such a company pseudo professional at most.
>That's
>> > a pitty.
>> >
>> How do I tell apart professionals from pseudo-professionals without
>> trying out first what they can do? By checking if they own a whip to
>> teach their employees to work flawlessly? I think the big problem is,
>> prototyping is tedious work done by hand, and there are many
>companies
>> in the market who outsource this. And only this. So even if you check
>> their equipment, it's likely they don't use it to do your prototypes.
>
>Then if you walk down this road further you end up choosing a local
>company
>such that you can go and have a look a the first batches before the
>finalize
>them. And then the next step is to have a good buddy of you start such
>a
>company and place your orders there... ;)
>May I ask - out of curiosity - where those companies you talk of are
>located?
>Asia? Europe? US?
>To be honest I did placements always myself as I am a Laboratory
>Guy/Physicist.
>The last time we ordered assembled boards was from a company run by a
>good friend of our Technician. As PCB design is still bit more complex
>as Lego
>this might be the way one has to go.
>I'm always a bit puzzled by such facts. I myself am in this business
>for about
>20 years now. One/I would guess that should have been some progress
>made
>in this field... ;)) (aahh - yes I know; one can load the PCB design
>files onto
>a RFID chip included into the PCB now - what a nice toy... ;))
>
>> > Ok, I'm fine with this if you are!
>> >
>> It has already been ordered from Mouser. Will arrive next week. Have
>to
>> see when I can start.
>
>Very cool! Thanks a lot!
>
>> By the way: Pascal Baerten has told me he updated his brain4home.eu
>> page. Have you asked him for a sample of his chip? I say that because
>in
>> contrary to the DS28E17, the BAE0911 has more intelligence built-in,
>so
>> it can interface to a connected I?C chip right now from a user
>program
>> put into it, and return the result through one of its general purpose
>> data properties in OWFS. And it's working right now.
>
>I wrote him a mail and as he put up the page again, I had a look at his
>pricing.
>I am interested in the BAE in 2 ways;
>1. they are cool and useful AND supported by owfs, so I need some eval
>boards
>2. I am interested in having/getting/creating and releasing a generic
>1wire slave
>library - best for Arduino/AVR (if possible) or else - and the BAE are
>a nice example
>I asked him for 2. (I can understand if he does not agree - but let's
>see). As for
>point 1. the main reason why I did not order yet is - his conditions
>are 10 chips
>min. and I would have to solder the eval boards myself. As I don't see
>me having
>the time and needing the chips in near future I am a bit hesitant to
>order right now.
>He told me I can order 5+5 chips which is a good thing - it does not
>need to be
>10 of each kind but in total.
>
>If somebody else wants/needs small amounts of BAE0910 or BAE0911 chips
>and we order together that would be perfect. So please let me know it
>you want
>some.
>
>Otherwise I think I'll step back until I have a real need for them.
>What is a pity
>since they look very nice and interesting to me!
>
>Thanks and Greetings
>
>
>
>------------------------------
>
>Message: 2
>Date: Sun, 10 Jan 2016 14:39:35 +0100
>From: Jan Kandziora <j...@gmx.de>
>Subject: Re: [Owfs-developers] Introduce support for DS28E17
>To: "OWFS (One-wire file system) discussion and help"
> <owfs-developers@lists.sourceforge.net>
>Message-ID: <56925f17.3090...@gmx.de>
>Content-Type: text/plain; charset=windows-1252
>
>Am 10.01.2016 um 14:06 schrieb Sol?r Ursin:
>>
>> May I ask - out of curiosity - where those companies you talk of are
>located?
>> Asia? Europe? US?
>>
>Bavaria.
>
>
>> To be honest I did placements always myself as I am a Laboratory
>Guy/Physicist.
>>
>Nah, don't like to do this. There's enough stuff being showed on my big
>lab desk, don't need any more.
>
>
>> The last time we ordered assembled boards was from a company run by a
>> good friend of our Technician. As PCB design is still bit more
>complex as Lego
>> this might be the way one has to go.
>>
>Yes, sure. My latest project is a HDMI->TTL converter for a 5" display
>I
>like to use with a Raspberry Pi in my machines. Sure, there are
>existing
>converters, but they are ugly and need too much cabling. Funny enough,
>but the HDMI and the TTL works like a charm. Seems I did the layout
>just
>right on first try.
>
>But of course the PCA9306DQE on that board I use for interfacing the
>1.8V I?C touch controller of the display have been mounted in the wrong
>direction. On all the prototypes. Hell, I can see the pin 1 dot even
>without a magnifying glass. (Of course, had first checked if it was
>wrong in the layout: no.)
>
>Please, let us stop now.
>
>
>> 2. I am interested in having/getting/creating and releasing a generic
>1wire slave
>> library - best for Arduino/AVR (if possible) or else - and the
>BAE are a nice example
>> I asked him for 2. (I can understand if he does not agree - but let's
>see). As for
>> point 1. the main reason why I did not order yet is - his conditions
>are 10 chips
>> min. and I would have to solder the eval boards myself.
>>
>Oh, the BAE0911 is SOIC, so soldering wires to it isn't a problem at
>all.
>
>
>Kind regards
>
> Jan
>
>
>
>------------------------------
>
>Message: 3
>Date: Sun, 10 Jan 2016 15:44:24 +0100
>From: Matthias Urlichs <matth...@urlichs.de>
>Subject: Re: [Owfs-developers] Introduce support for DS28E17
>To: owfs-developers@lists.sourceforge.net
>Message-ID: <n6tqo9$jor$1...@ger.gmane.org>
>Content-Type: text/plain; charset=windows-1252
>
>On 10.01.2016 14:06, Sol?r Ursin wrote:
>> I am interested in having/getting/creating and releasing a generic
>1wire slave
>> library - best for Arduino/AVR (if possible)
>
>The MoaT code does have that. It can be used to implement almost
>anything, you're not limited to the MoaT protocol.
>
>The only problem is that you can't do anything timing-critical and run
>1wire at the same time. The interrupt handling speed of an ATmega
>simply
>isn't fast enough; I'm even using some assembly code to speed that up.
>
>
>-- Matthias Urlichs
>
>
>
>
>------------------------------
>
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