Telit GL868-DUAL does not respond after AT#SD command

[war4one]

Telit GL868-DUAL does not respond after AT#SD command.

printf("AT#SIMDET=1\r");
printf("AT#SELINT=2\r");
printf("AT+CGDCONT=1,\"IP\",\"internet.mts.ru\"\r");
printf("AT#USERID=\"mts\"\r");
printf("AT#PASSW=\"mts\"\r");
printf("AT#SCFG=1,1,300,90,600,50\r");
printf("AT#GPRS=1\r");
printf("AT#SD=1,0,80,\"www.google.com\",0,0,0\r");

Module does not respond...

 

[ckshivaram]

hi,

Did you check with connecting your modem with hyperterminal to see if you get the response before checking it with the program...

 

[war4one]

I see all responses from modem in the JTAG Watch window. For all responses, he says "OK" and show me IP address after AT#GPRS

 

[renudsalab]

I also have same problem. I am working with telit GL865 modem. When i tried to connect with Server using AT#SD=3,0,80,"www.telit.com",0,0 ..... There is no response from the Modem. Please somebody help me to know, actually what is the problem so that i can resolve it.
Thanking you

 

[renudsalab]

I got the solution
you just needs to disable hardware flow control see AT&K0

 

[Ar Saurabh]

I have the similar issue, my modem freezes after i issue
AT#SKTD=0,80,"www.google.com"
CONNECT

Now it freezes, you cannot write any GET request , it totally stops responding.
I have tried disabling the flow control using
AT&K=0 or AT+FLO=0 but this didn't work for me.

Please suggest any other command.. I am totally stuck.

 

[somnath678@gmail.com]

hi
I had same issue.
Remember to put AT&K=0 at starting of program and don't invoke home page.
You can try with below URL and it will definitely work

//Check registration status
AT+CREG?

//Get the configuration of the sockets
AT&K=0
AT#SCFG?

//Check if any socket has been activated
AT#SGACT?

//Activate the socket 1
AT#SGACT=1,1

//Wait for socket activation
WAIT=4

//Dial the socket. Port 80 is TCP connection.
AT#SD=1,0,80,"www.openweathermap.org"

//Wait for the CONNECT message
WAIT=4

//Send the HTTP formatted data
<cr><lf>GET /data/2.5/weather?q=London,uk HTTP/1.1<cr><lf>Host: www.openweathermap.org<cr><lf>Connection:keep-alive<cr><lf>
<cr><lf>