Please help me, i want to

[ahmed qureshi]

Please help me, i want to send msg via gsm sim900D. I am unable to send txt using this code

 

 

#define F_CPU 11059200UL

 

#include <avr/io.h>

#include <avr/interrupt.h>

#include <stdio.h>

#include <stdlib.h>

#include “lcd.h”

 

#include <util/delay.h>

#include <inttypes.h>

#include <string.h>

 

void send_msg();

void init_USART();

void usart_send_string(char *str );

void usart_send(char data);

void gsm_cmd(char *cmd);

 

void init_USART()

{

 

unsigned int baud=71; //(UBRR= (Fos/ (16*baudrate) )-1  )

   UBRRH =(unsigned char)(baud>>;

   UBRRL=(unsigned char)baud;

   UCSRC|=(1<<URSEL)|(3<<UCSZ0);

  //Enable The receiver and transmitter

   UCSRB |= (1<<RXCIE) | (1 << RXEN) | (1 << TXEN);   // Turn on the transmission reception .

 

sei();

}

ISR (USART_RXC_vect)

{

 

unsigned char value;

value = UDR; // Fetch the received byte value into the variable “value”

len_recieved++;

    recieved_msg[len_recieved]=value;

if(data_flag==-1)

data_flag=0;

}

 

}

void usart_send_string(char *str )

{

while((*str)!=’’)

{

if(*str==0x5C)

str++;

usart_send(*str);

str++;

}

}

 

void usart_send(char data)

{

while(!(UCSRA & (1<<UDRE)));

UDR=data;

}

 

void gsm_cmd(char *cmd)

{

usart_send_string(cmd);

usart_send(0x0D);

_delay_ms(500);

}

 

 

 

 

 

void send_msg()

{

 

 char cmd1[]=”AT+CMGF=1″;

 char cmd2[]=”AT+CMGS “+923017698646″”;

 char msg[]=”msg sent from gsm”;

 

 

gsm_cmd(cmd1);

_delay_ms(3000);

 

 

gsm_cmd(cmd2);

_delay_ms(1000);

 

gsm_cmd(msg);

_delay_ms(100);

usart_send(0x1A);

 

LCD_write(‘S’);

LCD_write(‘E’);

LCD_write(‘N’);

LCD_write(‘T’);

 

}

int main(void)

{

DDRA=0xff; // making LCD_DATA port as output port

DDRB=0x07; // making signal as out pute

 

init_LCD(); // initialization of LCD

_delay_ms(50); // delay of 50 milli seconds

 

init_USART();

    

send_msg();

          

  while(1);  

}