gsmtuan.c

Visuabaic interface with com connect to computer

#include <avr/io.h> 	// avr header file for IO ports 
#include <avr/boot.h> 
#include <avr/pgmspace.h>

// This file has been prepared for Doxygen automatic documentation generation.
/*! \file ********************************************************************
*
* Atmel Corporation
*
* - File              : main.c
* - Compiler          : IAR EWAAVR 4.11a
*
* - Support mail      : [e-mail]
*
* - Supported devices : All devices with a UART/USART can be used.
*                       The example is written for ATmega128
*
* - AppNote           : AVR323 - Interfacing GSM modems
*
* - Description       : Example of how to use AT-Commands to control a GSM modem
*
* $Revision: 1.1 $
* $Date: Tuesday, November 08, 2005 12:26:20 UTC $
*****************************************************************************/


/*! \mainpage
* \section Intro Introduction
* This documents data structures, functions, variables, defines, enums, and
* typedefs in the software for application note AVR323.\n
*
* \section CI Compilation Info
* This software was written for the IAR Embedded Workbench, 4.11A, but can
* also be built using ###### (see note futher down).\n
* To make project:\n
* Add the .c files to project (main.c, AVRSMS_api.c, AVRSMS_com.c,\n
* AVRSMS_header.h, AVRSMS_tools.c and AVRSMS_zip.c). Use device
* --cpu=m128, enable bit definitions in I/O include files, optimization low
* for debug target and high for release, output format: ubrof8 for Debug and
* intel_extended for Release \n
*
* \section DI Device Info
* Devices with a UART/USART can be used. The example is
* written for ATmega128.\n
*
* \section TDL ToDo List
* Add suport for GPRS.\n
*/


//Used for SPLINT
#ifdef S_SPLINT_S
  #include"splint.h"
#endif


//Includes
#include <avr/io.h> 	// avr header file for IO ports 
#include <avr/boot.h> 
#include <avr/interrupt.h>
#include	"UART.h"
#include	"API.h"
#include	"TOOLS.h"

//! Flag imported from AVRSMS_com.c
extern int rx_ack;

//! Storage for new message index, see main loop
volatile int read_index;


//! Function prototype
void MAIN_init( void );


/*! \brief Sytem initialization
 *
 *  This function will set:
 *  -Correct baud rate
 *  -Modem init
 *  -Wait message
 *  -Receiver on
 *
 *  \param void
 *  \retval void
 */
void MAIN_init( void )
{
    COM_init(12);                 //Find corret baud rate in data sheet, must run @ 9600bps
   	COM_rx_on( );					//Enable interrupt
	//COM_putchar('v');
    API_phoneinit( );               //Initialize phone for textual messaging
    COM_rx_reset( );                //Reset receive buffer after API_phoneinit()
    COM_setSearchString( CMTI_ );   //Wait for "+CMTI: ,Storage,index\r\n"
//	COM_putchar( 'T' );
    COM_rx_on( );                   //Ready to receive
}


/*! \brief Main loop
 *
 *  This function is a simple main loop.
 *  Whenever a new message arrives, rx_ack  = 1, it is read and decoded.
 *  Toggle Breakpoint after API_readmsg, and view the result in msgbuff
 *  found in AVRSMS_api.c
 *
 *  \param void
 *  \retval void
 */
int main( void )
{

	// Crystal Oscillator division factor: 1
	#pragma optsize-
	CLKPR=0x80;
	CLKPR=0x00;
	#ifdef _OPTIMIZE_SIZE_
	#pragma optsize+
	#endif	

	sei();

    MAIN_init( );                               //Setup USART and modem

    read_index = 0;                             //Init variable


    for(;;)                                     //Forever
    {

        if( rx_ack == 1 )                       //New Message has arrived
        {
            read_index = TOOLS_decodeCMTI( );   //Find index
            API_readmsg( read_index );          //Read new message, and decode

            COM_setSearchString( 1 );           //PLACE BREAKPOINT AT THIS LINE. Set searchstring to "+CMTI: " again, wait for new message.
            COM_rx_reset( );                    //Reset buffer and interrupt routine
            COM_rx_on( );                       //Ready to receive
        }
    }
}