OESF Portables Forum

Model Specific Forums => Sharp Zaurus => Zaurus - pdaXrom => Topic started by: donk0yote on April 26, 2006, 10:30:52 am

Title: Dumb Terminal Via Ttys0?
Post by: donk0yote on April 26, 2006, 10:30:52 am

is there any way to get a dumb terminal set-up on serial port ttyS0??
i have been reading all the serial posts about gps devices and such but
i still don't have a clue what may be wrong......
i have tried all the run levels thinking it may be pppd .....but running "setserial" reports no UART associated with /dev/ttyS0 at each runlevel

i noticed that there is a usb control app in pdaxrom, but in the current rom i'm using, (1.1.0beta1), it seems to kill the keyboard input, (is the app writen for external keyboard use?)
 i CAN bring up the pickboard
and type setserial in an aterm window, and setserial then reports a UART:16550A, Port: 0x0000, IRQ:14, but then it doesn't exit to a prompt and control-c does not kill the program....
i think i am just a little ignorant on how it is supposed to work, can anyone teach me?

i need to run minicom or something like it to talk to a piece of hardware like a router via a 9600baud,8,N,1 serial connection....

Title: Dumb Terminal Via Ttys0?
Post by: trichmon on April 26, 2006, 05:33:43 pm

I have been after much the same thing.  I went out and bought a zserial cable for my 6000 and im only having partial success.  Any success stories would be very welcome.

Todd

Title: Dumb Terminal Via Ttys0?
Post by: iczer3 on April 26, 2006, 11:19:35 pm

Dear donk0yote and trichmon,

It is possible to use the serial port ttyS0 in pdaxrom with minicom.
Actually you need no special config at all.
I have a 860 so your mileage may vary.  

You do need a speical cable because the signals in the serial port
is inverted. If you don't it works sometimes and sometimes it doesn't.

I found out the hard way using a oscilloscope.

If you need detailed information I can post a schematic.

BR,

Felix.

Title: Dumb Terminal Via Ttys0?
Post by: trichmon on April 26, 2006, 11:53:17 pm

iczer3  thats been my luck.  With my current serial cable (Zthin cable from SerialIO) it works sometimes and not at other times.  If you could post a schematic to make an adaptor that would be killer.

Todd

Title: Dumb Terminal Via Ttys0?
Post by: iczer3 on April 27, 2006, 05:38:25 am

Dear trichmon,

Enclosed are the schematics.  

BR,

Felix.

Title: Dumb Terminal Via Ttys0?
Post by: donk0yote on April 27, 2006, 08:53:47 am

@iczer3:
THANKS!!!
is the Sharp_1 schematic the original CE-170TS Sharp cable, or the docking station
for the SL-5xxx?
and is the Sharp_2 scematic your replacement?

so the only reliable way to connect via serial is to have power to the cable?
i notice the max3241 also has vcc connected.

Title: Dumb Terminal Via Ttys0?
Post by: iczer3 on April 27, 2006, 10:30:12 am

Dear donk0yote,

The first page is a variation of the sharp connection cable for connecting
the sharp zaurus to their phs handsets. (Japan use phs handsets).

The second page is for connecting the connection cable to a RS232 serial
port.

The ten pin connectors are connected together to form a complete circuit.

BR,

Felix.