LED点灯

attiny13a_led_switch.c

/*
 * GccApplication1.c
 *
 * Created: 2020/04/24 19:51:08
 * Author : dev001hajipro
 
 8-PDIP
    PB5 1| tiny13 8|VCC
 A3 PB3 2|         |PB2 (SCK A1
 A2 PB4 3|         |PB1 (MISO
    GND 4|         |PB0 (MOSI
 */ 

//#define    F_CPU    128000UL // 128kHz
#include <avr/io.h>
#include <util/delay.h>

int main(void)
{
	// 初期化
	DDRB  = 0b00010001; // 0:入力(デフォルト) 1:出力
	PORTB = 0b00001000;
	uint8_t state;
	
	while(1) {
		_delay_ms(10);
		state = PINB & (1 << PINB3);
		if (state == 0)
		{
			PORTB |= (1 << PORTB0);
		}
		else
		{
			PORTB &= ~(1 << PORTB0);
		}
	}
	return 0;
}