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PICList Thread
'IrDA on PC (was :Re: IrDA on PIC)'
1997\04\03@020236 by Wolfram Liebchen

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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.

regards,

Wolfram



+-----------------------------------------------------+
| Wolfram Liebchen                                    |
| Forschungsinstitut fŸr Optik, TŸbingen, Deutschland |
| spam_OUTliebchenTakeThisOuTspamffo.fgan.de                         |
+-----------------------------------------------------+

1997\04\03@041753 by tefan Ranguelov

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> 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.

1997\04\03@092613 by Tom Handley

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  re: IRDA

  Stefan, I have the HP evaluation boards. The problem with adding it to the
pc's serial port is that you need to generate a 16X baud rate. You can get
a Windows IRDA driver from Microsoft for free. Most of the newer I/O chip
sets support IRDA. I have'nt tried to interface the HP boards to Windows
yet. When I get the time, I intend to interface them to a PIC 16C73. When/if
I do, I'll be glad to share the info.

  - Tom

At 11:15 AM 4/3/97 +0200, you wrote:
{Quote hidden}

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