INTERFACING GSM MODULE

[Parth]

Hi, I m interfacing GSM Module with 89v51rd2 controller.

I want to work on this command “AT+CCLK?”. When I m sending this command from PC using hyperterminal by I am getting an error when I send this command from microcontroller. Please help, its urgent….

 

#include <REG51F.H>

#include “lcd.h”

 

char a[25];

int i;

 

void serial_init() 

{

    SCON=0x50;   //setup for 8-bit data

    TMOD=0x20;    //setup timer 1 for auto-reload

    TH1=0xfd; //Baud Rate 9600

    TR1=1;       //turn on timer 1

    TI=0;         //indicate ready to transmit

}

//This function displays a null-terminated string on the RS232 port

void send_serial(unsigned char *s)

{

    while(*s!=0x00)

    {

        SBUF=*s;

        while(!TI);

        TI=0;

        s++;

    }

}

 

void rec()

{

    i=0;

    while(SBUF!=’’ && i<16)

    {

         while(!RI);

         a= SBUF;

         ++i;

         RI=0;

    }

}

 

void main()

{

    serial_init();

    lcd(“receiving”);

    send_serial(“ATr”);

    delay(100);

    send_serial(“AT+CCLK?”);

    delay(10);

    send_serial(“r”);

    rec();

    delay(100);

    lcd(a);

    delay(1000);

}

 

[AJISH ALFRED]

Hi Parth,

Next time please make sure that you are not posting the same query again.

[Author]

Posts