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gm47 tcp atdt
/home/chat1:
ABORT "BUSY"
ABORT "NO CARRIER"
ABORT "NO DIALTONE"
ABORT "ERROR"
'' AT
OK AT+CGDCONT=1,"IP","CMNET"
OK ATD*99***1#
CONNECT ""
/etc/ppp/option:
lock
nocrtscts
noauth
local
defaultroute
i execute the following command in shell
#pppd /dev/ttyS0 9600...
gm47 ppp
i use china mobile communication.
i have excute the AT command as follows in the minicom:
AT+CGDCONT=1,"IP","CMNET"
OK
ATD*99***1#
CONNECT
~ }#?}!}#} }9}"}&} }*} } }'}"}(}"}%}&}>_}#}%?}%骡~~ }#?}!}#} }9}"}&} }*} }
}'}"}(}"}%}&}>_}#}%?}%骡~~ }#?}!}#} }9}"}&} }*} }...
couldnt get channel number: input/output error
i try to connect MC35i to GPRS , i login as root in linuxOS,then excute the following command in shell:
# pppd /dev/ttyS0 debug 9600 connect 'chat -v -f /home/chat1'&
# cat /var/log/message
Aug 3 16:36:04 localhost pppd[3069]: pppd 2.4.1 started...
+pppd +atd +3g +china mobile
i try to connect MC35i to GPRS , i login as root in linuxOS,then excute the following command in shell:
# pppd /dev/ttyS0 debug 9600 connect 'chat -v -f /home/chat1'&
# cat /var/log/message
Aug 3 16:36:04 localhost pppd[3069]: pppd 2.4.1 started by root, uid 0...
logic analyzer software multiple
i once operate the Agilent logic analyzer, but i forget the part no. you can go to it's website, and there is a lot of materials you need. good luck
dial-up in uClinux
dose anyone have experience in dialing up GPRS or GSM network with GPRS modem under Linux or uClinux through serial port RS232, could you give me some tips? which software should i have? ppp tcp/ip rs232 driver, anything else?
siemens mc35i driver
i wannna connect the MC35i to my Embedded application platform in which there is already uClinux,RS232 driver,TCP/IP protocol etc. than i want to add PPP to uClinux, but i don't know if i need the MC35i driver ? is there any source codes ?
sim card pin assignment
i'm drawing the SIM card holder (part no. is Molex 91236, 6pins) PCB component libs, but there's no pins assignment, where can i get them? please help me. thank you
use of open drain
if i use the BSS138, shoud i use the pull-up resistence on the drain pin? and the VOpenmax=2.3v means the high level that ipnut to the module could not be higher than this, right?
drain collector
I'm designing the application platform of the GPRS module MC35i, now I have some problem on the the design of the pin IGH, the electronical description of this pin are as follows:
signal form and level:
RI ≈ 100k, CI ≈ 1nF
VILmax = 0.5V at Imax = -20µA
VOpenmax = 2.3V
ON...
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