Re: [openpsion] Connecting 5mx to PC

[Brian D. <du...@ap...>]

Connecting to the desktop over the serial line is described in the HOWTO for
the 5MX:
http://linux-7110.sourceforge.net/howtos/series5mx/5MXHOWTO/5MX_howto_9.htm

Also the netBook, which will be no different, except for the name of the 
serial port:
http://linux-7110.sourceforge.net/howtos/netbook_new/x566.htm

And yes, you have to make and use the ttyAM1 device.  And the Psion cable is
already a null modem device, so you don't need a null modem adapter.

Before messing with PPP, your best bet is to use minicom on the psion and
desktop to ensure that the connection is working - these dumb terminal emulators
will just dump what you type to the other machine, so they ensure the baud
rate, etc are set right.  If you are going from Psion to a Windoze machine...
I am at a loss, although I think there is a hyperterminal thing in Windoze 
that is meant to work.  Such terminal emulators have the capability of sending 
files back and forth (Send File, Receive File, etc.)

There is also good ole Kermit - start kermit up on either end and you can
send files back and forth, etc.  But the PPP connection is the most slick,
since it gives you networking.

Part of the problem with serial connections is that they are as old as
Moses, so there are a bizzilion ways to set up a serial connection.  I think
Moses set up a serial connection across the Red Sea before he was finally
able to part it (and it was good).

B.D.

On Sun, 30 Oct 2005, Colin Sauze wrote:

> David Sumbler wrote:
> 
> > Colin Sauze <col...@gm...> writes:
> > 
> > 
> > 
> > > David Sumbler wrote:
> > > 
> > > 
> > > 
> > > > I've just spent a frustrating couple of hours trying to work out
> > > > how
> > > > to connect my Psion 5mx, running Brian's modified Debian Woody, to
> > > > my
> > > > PC - I couldn't seem to find anything quite relevant in the list
> > > > archives, or maybe I just didn't understand some of it.  Anyway, I
> > > > seem to have got just about nowhere.
> > > > 
> > > > I want to use the serial lead from the Psion connected to what in
> > > > other circles would be called COM1, which I think is /dev/ttyS0 -
> > > > is
> > > > that right?  I'm afraid I need some pretty basic advice, as I've
> > > > never
> > > > done this kind of thing before.  The main reason for connecting
> > > > would
> > > > be to upload packages from the PC to the Psion, and to exchange
> > > > user
> > > > files between the two machines.
> > > > 
> > > > 
> > > > 
> > > > 
> > > I think you have to create a /dev entry for the com port and this is
> > > missing from the image. See
> > > http://staff.washington.edu/dushaw/psion/ReleaseNotes.txt (scroll down
> > > to point number 5). Typically the device is called /dev/ttyAM1 rather
> > > than ttyS0 on the Psion, but this name is totally arbitary, its the
> > > major and minor numbers which you give to mknod which matter.
> > > 
> > > 
> > 
> > OK, done that - sorry to sound thick, but how do I actually set up a
> > connection between the two machines?  I could redirect output from one
> > to the relevant device, but how do I get the other machine to listen
> > and handle the data?
> > 
> > David
> > 
> > 
> > 
> You can either use PPP which will create a TCP/IP connection and you can run
> any TCP based system (ftp, rcp, http, scp, smb, nfs etc) over it. The other
> way is to use a terminal program like minicom (and on the host PC you can also
> use minicom or if running windows hyperterminal) and copy the files using the
> x,y or zmodem protocols.
> 
> Setting up the PPP stuff is not at all Psion specific and there are plenty of
> instructions on how to do this, see
> http://handhelds.org/moin/moin.cgi/PPPhowto for a good tutorial on this.
> 
> 
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