Re: [ts-7000] serial port woes

[Onur T <>]

Hi Mike,

I remember somewhere in the manual that the COM2( dev/ttyAM1 ) does not have all the Serial lines. COM1(dev/ttyAM0) has. Maybe if you disable Hardware flow control on your Handspring it might work.

Also make sure you PS and check if there is any other process connected to /dev/ttyAM1


m g <> wrote:

On Thu, Jan 12, 2006 at 01:25:00PM -0700, Eddie Dawydiuk wrote:
>
> I was unable to reproduce these problems.
>
> Note: I didn't reconfigure ttyAM1 with setserial, I left the default
> settings.
>
> In order to use the echo command to write to COM2 I commented out the
> following line int /etc/inittab.
>
>     lgn1:12345:respawn:/sbin/getty -L 115200 ttyAM1
>
> I then rebooted to let the changes take effect. Next I telneted into
> the TS-7xxx, connected a null modem cable to COM2 of the TS-7xxx and
> my PC running a terminal emulator. Next I set the baud rate of my
> terminal emulator to 9600 baud, 8N1, No Flow Control. I then ran
> the following command.
>
>     $ echo "1234567890987654321" > /dev/ttyAM1
>
> I immediately see the string "1234567890987654321" appear in my terminal
> emulator. This verifies that I can use the echo command to write to the
> serial port.
>
> I'm not able to reproduce the issue of cat returning, when I run cat
> /dev/ttyAM1 it doesn't return until I end the process. Try repeating
> the steps above with out running the setserial command. Let me know
> if you still see any problems...
>

If you'll re-read my ori! ginal post, I did not have problems using a
null modem cable to communicate between my desktop PC and the TS. Where
I have problems is using my Handspring Visor to communicate with the TS.
The Visor will work when connected to my PC using an identical serial
port setup and application.

What could be different about the serial port on the TS compared to a
PC?

Thanks,
Mike

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