[Bug 256] GSM Modem doesn't seem to work on some devices

bugzilla-daemon at bugzilla.openmoko.org bugzilla-daemon at bugzilla.openmoko.org
Fri Mar 16 12:39:00 CET 2007


http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=256





------- Additional Comments From philipp.zabel at gmail.com  2007-03-16 12:38 -------
I tried to run cu several times after issuing stty -F /dev/ttySAC0 crtscts, and
now I get garbled output from the modem. After several lines it still hangs.
Examples:

root at fic-gta01:~$ echo 1 > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on
root at fic-gta01:~$ cu -l /dev/ttySAC0
Connected.
d Interpreter re

root at fic-gta01:~$ echo 1 > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on
root at fic-gta01:~$ cu -l /dev/ttySAC0
Connected.

OK

OK

OK

root at fic-gta01:~$ echo 1 > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on
root at fic-gta01:~$ cu -l /dev/ttySAC0   
Connected.

OK
AT[6~
EAT-Command Interpreter ready

root at fic-gta01:~$ echo 1 > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on
root at fic-gta01:~$ cu -l /dev/ttySAC0 
Connected.
d Interpreter ready

I also tried picocom, which didn't react after "Terminal ready", until I pressed
a key:

root at fic-gta01:~$ echo 1 > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on
root at fic-gta01:~$ picocom -b 115200 -f h -p o -d 8 -i -r -l /dev/ttySAC0
picocom v1.4

port is        : /dev/ttySAC0
flowcontrol    : RTS/CTS
baudrate is    : 115200
parity is      : odd
databits are   : 8
escape is      : C-a
noinit is      : yes
noreset is     : yes
nolock is      : yes
send_cmd is    : ascii_xfr -s -v -l10
receive_cmd is : rz -vv

Terminal ready
AT-Command
Interateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterateraterater


                                                                            ERROR



 OK



   OK



     OK

... and so forth until C-a C-x. Any suggestions?



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