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[i]);

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

will i get the response in buf1[] buffer

Thanks
Puneet

 

hi
Maybe this link will help:
Basic Hayes AT Command Set

__________________
Eric " Good enough is Perfect "
I will NOT answer PM's requesting technical help, please use the Forum
PIC tutorials: Nigel's www.winpicprog.co.uk/ Bill's: www.blueroomelectronics.com/

 

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'.

__________________
Eric " Good enough is Perfect "
I will NOT answer PM's requesting technical help, please use the Forum
PIC tutorials: Nigel's www.winpicprog.co.uk/ Bill's: www.blueroomelectronics.com/

 

I have some sample C code on my site sending and parsing AT commands. It's for Xbee, but it's similar enough to get an idea.

__________________
/felis

http://www.circuitsathome.com

 

hi felis,

can u please send me the link so that i can have a look on the sample code....

 

Circuits@Home Playing Xbee. Part 2 - Command mode.

__________________
/felis

http://www.circuitsathome.com