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modem communication

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puneetnepsam

New Member
hi all,

i want to test whether my modem is responding to the AT commands or not?

suppose if i send the command "at+crsm=?"
it will send me the response "OK"

my modem is connected to the PIC24F through UART interface..

can anyone tell me how to proceed further...

should i have to send AT command from the code

if i write
buf[] = " at + cmgs=?"

and send it
sendUART(buf);

and if i do
buf1[] = receiveUART();

will i get the response in buf1[] buffer

Thanks
Puneet
 

puneetnepsam

New Member
i am asking code wise...

can i send the AT command through my code or i have to send the AT command by some other means?
 

ericgibbs

Well-Known Member
Most Helpful Member
i am asking code wise...

can i send the AT command through my code or i have to send the AT command by some other means?
hi,
I write in assembler not 'C'.

You do have to send the Modem Command codes to the modem in order to initialise it.
Use the 'AT'-tention command prior to a command and if your PIC program can handle it, switch on the modems 'Echo'.
 
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