On the Palm side, you need to go to their developer website.  PalmOS has a
"IR Library" if I recall the name correctly, which allows you to perform
low-level IR communications.

The IRDA protocol is at least as complex as TCP/IP, and would be difficult
to fit into a PIC.   The IRObex protocol that Palm uses to exchange data is
yet another complex protocol run on top of the basic IRDA stuff, and is even
less attractive for PIC implementation.

I would recommend using your own simple protocol, and doing no more than
needed for your application, unless you want to try to tackle something
really difficult in the hopes of sharing or selling it.

> -----Original Message-----
> From: Stephen B Webb [mailto:sbwebb0@SAC.UKY.EDU]
> Sent: Thursday, August 17, 2000 12:05 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [OT:] Pic / IrCOMM, PalmOS, etc
>
>
> I've been playing around with a Palm V, a Pic 16F84, and some
> Ir modules,
> trying to get simple communication between the devices.
>
> 1.  I tried to open the serial port on the Palm with the
> address spec of
> $8001  (the programming docs indicate that this will open the
> Ir port),
> but no luck.
>
> 2.  I have been digging through the IrDA specs on the IrCOMM
> protocol (3
> wire raw, in particular) and it seems like a whole lot of work to
> implement on the pic side.
>
> Really all I want is to be able to treat the IR port like a
> normal serial
> port and be done with it (on the Palm side and on the Pic
> side) but so far
> I haven't been able to get too far.
>
> SO...Does anyone have any hints or  clues on how to get the
> Palm to talk
> plain serial over the IR port? (I have seen a utility program for the
> palm that evidently lets you "trick" the OS / application
> into thinking
> it is dealing with the serial port when it is really talking
> over the IR
> port).
>
> -OR-
>
> Does anyone have any tips or info on implementing IrCOMM on a Pic?
>
> Thanks
>
> -Steve
>
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