3-Phase-Controller/TimerTimeout.cpp at master · rickyfajar93/3-Phase-Controller · GitHub

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/*
 * File:   TimerTimeout.cpp
 * Author: Cameron
 *
 * Created on April 1, 2016, 3:47 PM
 */

#include <avr/io.h>
#include <util/atomic.h>

#include "TimerTimeout.h"

void TimerTimeout::init() {
	static bool initted = false;
	if (initted) return;
	initted = true;

	TCCR0B = 0;
	TIMSK0 = 0;
	TIFR0 = 0xff;

	// Setup TIMER0
	TCCR0A = 0;
	TCCR0B = timerClockSelect;
}

void TimerTimeout::startA(u1 period) {
	ATOMIC_BLOCK(ATOMIC_FORCEON) {
		startAISR(period);
	}
}

void TimerTimeout::startB(u1 period) {
	ATOMIC_BLOCK(ATOMIC_FORCEON) {
		startBISR(period);
	}
}

void TimerTimeout::startAISR(u1 period) {
	OCR0A = TCNT0 + period;
	TIFR0 = 1 << OCF0A;
	TIMSK0 |= 1 << OCIE0A;
}

void TimerTimeout::startBISR(u1 period) {
	OCR0B = TCNT0 + period;
	TIFR0 = 1 << OCF0B;
	TIMSK0 |= 1 << OCIE0B;
}

void TimerTimeout::stopA() {
	ATOMIC_BLOCK(ATOMIC_FORCEON) {
		stopBISR();
	}
}

void TimerTimeout::stopB() {
	ATOMIC_BLOCK(ATOMIC_FORCEON) {
		stopBISR();
	}
}

void TimerTimeout::stopAISR() {
	TIMSK0 &= ~(1 << OCIE0A);
}

void TimerTimeout::stopBISR() {
	TIMSK0 &= ~(1 << OCIE0A);
}