34 lines
587 B
C
34 lines
587 B
C
#include "delay.h"
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#include <avr/interrupt.h>
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volatile uint8_t flag=0;
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int main(void){
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timer1_init();
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DDRC |= (1<<PC0); // PB1 (D9)
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// prescaler 8
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DDRD &= ~(1 << PD2);
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PORTD |= (1 << PD2);
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EICRA &= ~((1 << ISC01) | (1 << ISC00));
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EIMSK |= (1<<INT0);
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sei();
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while(1){
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if(flag){
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flag=0;
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PORTC |=(1<<PC0);
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delay_ms(500);
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PORTC &=~(1<<PC0);
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delay_ms(500);
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}
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else{
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PORTC |=(1<<PC0);
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delay_ms(50);
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PORTC &=~(1<<PC0);
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delay_ms(50);
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} // 75%
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}
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}
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ISR(INT0_vect){
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flag=1;
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} |