1-wire waveforms and details

[Fred]

There is a multitude of stuff on the Dallas website on this but I can't find
any waveform diagrams which include basic things like is the LSbit sent
first etc.

Can anyone point me in the right direction?

 

[Payman Habibelahi]

"Fred" <Fred@nospam.com> wrote in message
news:418a4072$0$1158$db0fefd9@news.zen.co.uk...

There is a multitude of stuff on the Dallas website on this but I can't
find
any waveform diagrams which include basic things like is the LSbit sent
first etc.

Can anyone point me in the right direction?

LSbit is sent 1st
App notes 159 & 187 are worth studying

Application Note 187 1-Wire Search Algorithm

Application Note 159 Ultra-Reliable 1-Wire Communications

 

[Fred]

"Payman Habibelahi" <spam@payman.com> wrote in message
news:2uv593F2fhot9U1@uni-berlin.de...

"Fred" <Fred@nospam.com> wrote in message
news:418a4072$0$1158$db0fefd9@news.zen.co.uk...
There is a multitude of stuff on the Dallas website on this but I can't
find
any waveform diagrams which include basic things like is the LSbit sent
first etc.

Can anyone point me in the right direction?



LSbit is sent 1st
App notes 159 & 187 are worth studying

Application Note 187 1-Wire Search Algorithm

Application Note 159 Ultra-Reliable 1-Wire Communications



Many thanks - you've just beaten me to finding:

Book of iButton Standards

on the Maxim website. I will have a look at the apps notes you mentioned.

Many thanks again.

 

[Michael]

Payman Habibelahi wrote:
SNIP

Application Note 187 1-Wire Search Algorithm

It's cool. Do have a look. I thought it so cool that I just *had* to
try it. Haven't implemented it in any of my designs but it does work.

 

[Robert Baer]

Fred wrote:

There is a multitude of stuff on the Dallas website on this but I can't find
any waveform diagrams which include basic things like is the LSbit sent
first etc.

Can anyone point me in the right direction?

I strongly suggest that you (or anyone else) forget that Maxim/Dallas
exists, because many of the "products" they advertise is vaporware.
It is a fact that many distributors now refuse to carry any of their
stuff due to that very problem.