switch control

#include <avr/io.h>

#include <util/delay.h>

#define LED_DIR DDRF  // 레지스터를 바꿀 때 유용

#define LED_DATA PORTF

#define SW_INDATA PINC

int main(void)

{

//1번

/*

        LED_DIR = 0xff;

        LED_DATA = 0x00;

        while(1)

        {

        

                LED_DATA = ~(SW_INDATA);

        }

*/

//2번

        LED_DIR = 0xff;

        LED_DATA = 0xff;

        while(1)

        {

        

                LED_DATA = (LED_DATA&SW_INDATA);

                if(LED_DATA==0x00)

                {

                        LED_DATA=0Xff;

                        _delay_ms(1000);

                }

        }

        return 0;

}