On Fri, 7 Mar 1997, Antti Lukats wrote:

> >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.
>
> Nop once you have the low lever functions there are no problems,
> in the matter of fact its very easy for PIC and not so easy for PC :)

  I used to think so too, until I read App note #74 from Dallas.  OneWire
protocol can be done using the PC's serial port at 115.2k for
communications and ~10k for the reset signal. See my webpage for more
info.

  Brian

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