/*
 * timerinterrupt.c
 *
 * Created: 17/05/2021 12:58:50
 *  Author: yboujon1
 */ 

#include "main.h"
#include "timerinterrupt.h"
volatile unsigned char etat = 0;

void start_timer0(void){
	DDRB |= (1<<PB3);
	TCCR0 |= (3<<CS00)|(1<<WGM01)|(1<<COM00);
	OCR0 = 65;
}

void stop_timer0(void){
	TCCR0 &= ~(3<<CS00);
}

void init_interruption(void){
	DDRD &= ~(1<<PD2);			//on met int sur pd2
	MCUCR |= (3<<ISC00);
	GICR |= (1<<INT0);
	sei();
}

ISR (INT0_vect){
	etat = 1 - etat;
}

void start_timer1(unsigned short int ocr1a){
	OCR1A=ocr1a;
	TCCR1A |= (1<<COM1A0);		//toggle
	TCCR1B |= (1<<WGM12)|(1<<CS12);		//compare + div 64
}

void stop_timer1(void){
	TCCR1B &= ~(1<<CS12);
	OCR1A=0;				//règle le soucis du premier mot oublié
}

void resume_timer1(void){
	TCCR1B |= (1<<CS12);
}

void wait_ocf1a_timer1(void){
	do{
		status=TIFR;
	}while((status & (1<<OCF1A))==0);
	TIFR = TIFR | (1<<OCF1A);		//on remet OCF1A a 0
}