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Connection to Internet with MC56 Siemens

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FSio

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mc65 siemens gprs connection

Hi,
I´m work with MC56 Siemens (with GPRS) and I have any problems with comunication between MC56 and a SERVER HTTP.

Anyone can help me? Anyone had worked with module Siemens ?

Best Regard
 

techie

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%20http/1.0%0asendto%0a

Can you be more specific about your problem. I have worked with other siemens modules, not MC65. But I guess they must be similar.
 

FSio

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Hi techie,

My problem is very enclosed.
Once connected to the server (apn), the MC56 answer me "^SISW:0, 1".
Then I inscribe
"SISW=0,87", where 87 are data's amount.
the MC56 send me :
"AT^SISW:0,87"
now I send to MC56:
"HEAD[20]/abcdefghijk.htm[20]HTTP/1.0[0D][0A]
User-agent:[20]12345[0D][0A]
ABC:[20]A[0D][0A]
Session:[20][20][20][20][20][20][20][20][20][20][20][20][20][20][20][20][0D] [0A][0D[0A]"
this is first frame of my protocol over HTTP.

Now the MC56 answer me:
"SISW: 0, 1"

then some seconds I receive:
"^SIS: 0, 0, 47"
this is a bad condition. In fact, the my server HTTP had closed your ports

And I should close the connection doing:
"AT^SISC=0"

What is the matter?
Why the Server HTTP had closed connection?
Could be problems with operator GPRS?
 

techie

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I am not sure about the C65 but in my opinion you should first try to get the data on the HTTP server using your PC and a socket terminal. You can use hyperterminal in TCP/IP mode also. Then you should manually enter the HTTP commands and see if the server responds with a similar data or not. That way, you can be sure whether there is a problem at the server, or in your commands, or in the C65 module itself.
 

FSio

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OK,
You have reason.
I made (at past), a applicacion similar with TCP/IP via ADSL.
I had tested this application and work it correctly.

I believe that el GPRS network is "the guilty". Stil I have that verify this.

Best Regard

FSio
 

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