ユニバーサル基板工作練習回路 KAIMU-UA1

#include <avr/io.h>

static inline void wait(volatile unsigned long i)

{

    while (i-- > 0);

}

static inline void ledOnOff(void)

// LED light ON / OFF

{

    PORTD ^= (1<<PD0);

}

static inline void ledOn(void)

// LED light ON

{

    PORTD |= (1<<PD0);

}

static inline void ledOff(void)

// LED light OFF

{

    PORTD &= ~(1<<PD0);

}

static inline void buzOn(void)

// Buzzer ON / OFF

{

    PORTB ^= (1<<PB0);

}

static inline void initIo(void)

// initialize I/O ports.

{

    PORTD |= (1<<PD2); // PD2 weak pull up enable

    DDRD = 0b11111011; // PD2 as Input, others Output

    DDRB = 0b11111111; // PORTB as Output

}

static inline int isSwitchOn(void)

// if Switch-ON -> return TRUE, else return False

{

    return ( !( PIND & (1<<PD2) ) );

}

/*

 *  Main

 */

int main(void)

{

    volatile int i;

    initIo();

    // Buzzer

    for (i = 0; i < 2000; i++) {

        ledOnOff();

        buzOn(); wait(10);

    }

    while (1) {

        if ( isSwitchOn() ) {

            ledOn();

        } else {

            ledOff();

        }

    }

    return 0;

}

# AVR-GCC Makefile

PROJECT=kaimu-ua1

SOURCES=$(PROJECT).c

CC=avr-gcc

OBJCOPY=avr-objcopy

MMCU=atmega168

TARGETDEV=m168p

CFLAGS=-g -O2 -mmcu=$(MMCU) -Wall

$(PROJECT).hex: $(PROJECT).out

$(PROJECT).out: $(SOURCES)

program: $(PROJECT).hex

(PROJECT).hex

clean: