B&B Electronics Asynchronous to Synchronous Converter 2010 Bedienungsanleitung PDF herunterladen (Seite 35)

Department of Computer Science and Electronics

8. Appendix

Appendix A. C code

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

// Author: Miren Itsaso Martinez & David Calvo

// Last update: 10

May 2007

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

#include <mega16.h>

#include <avr/io.h>

#include <avr/eeprom.h>

#include <avr/wdt.h>

#include <util/delay.h>

#define EEMEN __atributte__((section(".eeprom")))

#define ENABLE 2

#define EN_TRANSISTOR 3

//Function declaration

void init_function(void);

unsigned int read_data(unsigned int);

void calibrar(void);

void result_calibration_eeprom(void);

void send_sensors_state(void);

static unsigned int val[8] __attribute__((section(".eeprom")));

unsigned char my_address,address,function,add_one,dades=0x00,my_UDR;

unsigned int data_sensor[8],result_c[8],i;

void init_function(void)

{

WDTCR=0x0F;

my_address=0x01;

for(i=0;i<=7;i++)

{

result_c[i]= eeprom_read_word((unsigned int*) &val[i]);

wdt_reset ();

}

//Port Initialization

PORTD=0X00;

DDRD=0X0C;//POTD.2 output(enable) and PORTD.3 also activates

external transistor

//Initialization UART

UCSRA|=0x00;

UCSRB|=(1<<RXEN)|(1<<TXEN);

UCSRC|=(1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0);

UBRRH|=0x00;

UBRRL=0X67;//16MHz,9600baud

//Initialization ADC but no START yet

ADMUX=0X00;

ADCSRA=0X87; //division factor 128./125kHz

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