AT commands over hyperterminal

[fouwad]

hi all im doing a project for which i need to send AT commands to SIM300z from my atmega32 microcontroller,
i tested my code on hyperterminal by sending "atd03335566962;\r"
atd and the number goes fine but ';' and '\r' r not displayed on hyperterminal
plz tel me what could be the problem
regards

 

[selvan0201]

I think u'r code doesn't the exact array size.. U just post the coding lines it will be better..

 

[fouwad]

// ***********************************************************
// Project: SMS Controller
//
// ***********************************************************
#include <avr\io.h> // Most basic include files
#include <avr\interrupt.h> // Add the necessary ones
#include <avr\signal.h> // here
#define F_CPU 1000000UL
#include<util\delay.h>
#include <math.h>

//*******************************LCD FUNCTIONS******************
//display 4-bit data






// ********************************URAT***************************
void USART_Init( unsigned int); //prototype for Intialization function
void USART_Transmit( unsigned char); //prototype for data Transmitting
// function with one input argument
// unsigned char USART_Receive( void ); //prototype for data Recieving function
// with one output argument


// ***********************************************************
int main(void) //calling main function
{
int baud=12; //loading 12 in UBBR i.e baudrate=9600
//intializing variables
// unsigned char device;
int j=0;
// unsigned char ok[20];
//unsigned char M;
//AT Instruction


unsigned char Einst1[3]={'A','T','\r'};
unsigned char Einst2[6]={'A','T','E','0','\r'};
unsigned char Einst3[16]={'A','T','D','0','3','3','3','5','5','6','6','9','6','2',';','\r'};


USART_Init(baud); //calling Intialization function



//************************************
DDRA=0xFF; //Setting Data Direction






//while(1) // Infinite loop;
//{
//}

_delay_ms(3000);

for (j=0; j<=2; j++) //sending AT
{
USART_Transmit(Einst1[j]);
// _delay_ms(10);


}
_delay_ms(500);

for (j=0; j<=3; j++) //SENDING ECHO 0
{
USART_Transmit(Einst2[j]);
_delay_ms(100);
}

_delay_ms(500);

for (j=0; j<=15; j++) //DIALING COMMANDS
{
USART_Transmit(Einst3[j]);
// _delay_ms(10);
}

PORTA=0XFF;



}

// ***********************************************************

void USART_Init( unsigned int baud ) //defining intialization function
{
UBRRL = baud; //sending value in UBRRL i.e
UCSRA |= (1<<U2X); // Setting baud rate=9600
UCSRB |= (1<<RXEN)|(1<<TXEN); // Enabling receiver and transmitter bits
UCSRC |= (1<<URSEL)|(0<<USBS)|(3<<UCSZ0)|(0<<UPM0);
//Setting frame format
//8data bits, 1stop bits, no parity

}
// ***********************************************************
void USART_Transmit( unsigned char data ) //defining data transmitting function
{
while (( UCSRA & (1<<UDRE))==0 ) ;//Wait until the transmitter buffer gets
//empty
UDR = data; //Putting data into buffer, sending the
// data
}
// *******************************************

Added after 58 seconds:

this is my code but its not working properly
plz help me with any idea how to make it right

 

[fouwad]

any1 plzzz?

 

[armecos]

use this tool to debug:

http://www.armecos.com/en/comtrace.html

 

[pranali pandit]

so is dis code working properly now.....