> At 11:55 03.04.97 +0930, Mike Smith wrote:
> >Where  did you find the info on how to get the PC motherboard to work with
> >it?  My *bios* has support, but I can find no data on h/w support for it.
> >
> >MikeS
> >
>
> Some mainboards (at least ASUS) have a connector, where you can attach a
> little
> daughter board (2 x 1 inch) with the IrDA transceiver.
> It's described in the board manual, but one seems not able to buy it.
> It contains almost only the Hewlett Packard IR modul, therefor you can
> build it
> yourself.

You can also build an adapter from the
standard RS232 to IRDA. For sending
data it has to generate shorter impulses
and for recieving it expands the pulse
length, so the RS232 can recognize 0 or 1.

There is a special HP chip for this.
The only problem is, the time values depend
on the baud rate, and a standatd RS232 has
no bit takt avaible.

So you have to use a trick and first tell
the converter chip the baud rate. This
means you need special software...



St.