[wellylug] HotSyncing USB Palms

[Eugene Van Wyk]

Hi Colin

I have just recently been banging my head against IRDA1.0 and all
subsequent flavours.  Searching for IRDA standards on the internets
results in a host of different higher level protocols.  I have not
investigated any, but from using my development system and trying to
talk to PDA's around the place, they were all running 19200baud, 8 bit,
no parity and 1 stop bit.  All the data patterns I had a look at seemed
to be about the same.

Regarding the DSE interface - I have not had a close look, but I think
it is the basic encoder/decoder including the transceiver chip.
Electrically it means your RS232 data stream is converted to IR pulses
and back.  What you need to find is the right protocol handling
software, and that may be a mission.

Does anybody out there have summary of all the different protocols, and
where they are actually used.  I would not mind getting my hands on some
source code for such, as I need to develop some stuff for embedded 8 bit
micro's.


Eugene van Wyk
Test Development Engineer
4RF Communications Ltd
26 Glover St
Ngauranga
Wellington
New  Zealand
 

-----Original Message-----
From: Colin & Josephine Lewis [mailto:cjlewis at amcom.co.nz] 
Sent: Tuesday, 6 April 2004 8:51 p.m.
To: wellylug at lists.naos.co.nz
Subject: Re: [wellylug] HotSyncing USB Palms

On Sun, 28 Mar 2004 12:54 am, Robin Hinde wrote:
Thanks for the suggestion Robin.  I tried this but still no luck.  I
guess I 
should either try upgrading to Mdk 9.2 or wait for a stable version of
v10 to 
come out.  In the meantime I noe have syncing ability through work so
all is 
not lost completely.

As an alternative I tried geting a serial based infrared unit to work,
but 
sofar without any success either.  Has anybody had any experience with 
getting one of these to run under Linux?  I bought it from DSE.  It says
it 
meets IrDA 1.0  physical specifications.

Colin

> This is actually for Colin, but other members might find this useful.
>
> Quite some time was spent trying to get an Acer s60 talking to Linux
at the
> Hutt meeting last Thursday. The problem was finding what the Palm
device
> actually appears on the system as. That's hard without any
documentation.
>
> Turns out that the answer (on my system, Mandrake 10) is: /dev/ttyUSB1
>
> If you point K or J Pilot to that device, HotSyncing works fine. You
have
> to press the cradle HotSync button before clicking the Sync button in
the
> software, as /dev/ttyUSB1 doesn't exist until the cradle button is
pressed.
>
> I suppose the correct way is to create a link /dev/pilot that points
to
> /dev/ttyUSB1
>
> http://www.tldp.org/HOWTO/PalmOS-HOWTO/pc-connect.html has some quite
> relevant information.
>
> HTH
>
>   -=rjh=-


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