r.hannema@castel.nl wrote:
>
> Mostly I hate Novices but this time, I am one.....
>
> Does anyone know something about the Dallas Touch Memory parts.
> It's a kind of battery-like 64-bit memory cell, with a 1-wire protocol.
>
> YES, only one wire to read the contents of this unique-serial number memory.
>
> The only problem is that the TIMING is very difficult.
>
> Can anybody help me ?
> Is te DS2404 interface chip something to use ???
> Is PIC-BASIC to slow to programm in ??
>
> NB a very interessting site: http://www.iButton.com/iButtons/index.html
> really great and the parts are very cheap, only the software......
>
> Remko

Gday Remko,
I have done a lot of work with the dallas chips on pic and hc11.
The timing is straight forward and works well.
You will need to do some setting and checking at 8uS intervals so basic
may not be the way to go.
Get hold of the "Touch Memory Standards" book from dallas, it explains
is well.
Regards
--
Lee McLaren                          lmclaren@trumpet.com.au
Comstra pty. ltd.                    lmclaren@comstra.com.au
2 Kirksway place                     phone       03 62244488
Hobart Tasmania                      fax         03 62244601
Australia 7000                       mobil       018 138682

'It was five hours of Boggs's "channelling". After three hours
I asked him to summon up the soul of Jimi Hendrix and requested
All Along the Watchtower. You know, the guy's been dead
twenty years but he still hasn't lost his edge'
Mulder