Method of coding the AT commands for transferring digital signal

[Nassar]

hello every1,

I want to send (digital signal) In the form of "data call" over "GSM network" from pic18f4550 to gsm modem ( kind of: GE865 Evaluation Board )

then the first gsm modem (sender) will send the data to another gsm modem (of the same type) .

now ::

I want to ask about the method of coding the AT commands which used to transfer the digital signal :

char *COMMAND[] = {"AT","AT+CGDCONT=1,\"IP\",\"static\",\"0.0.0.0\"","AT#CGACT=1,1","AT#sd=1,0,1080,10.16.2.8"};
char *RESPONSES[] = {"OK","OK","OK","CONNECT"};

Is this correct?

 

[atuntripathy]

Re: AT commands question

no , this wont work with serial data transmission,u must understand the only method of data transmission from micro-controller to modem is through serial by using the USART registers. initialise the USART , and send 1 character at a time, its damn easy,,just google about usart code for AT commands ,u will get a lot of help

 

[Nassar]

Re: AT commands question

ok, i configure the USART as :

OpenUSART(USART_TX_INT_OFF & USART_RX_INT_OFF & USART_SYNCH_MODE & USART_EIGHT_BIT & USART_CONT_RX & USART_BRGH_LOW,624);

what is the correct method to coding at commands in C ?!