45 lines
682 B
C
45 lines
682 B
C
#include <avr/io.h>
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#include <avr/interrupt.h>
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#include "include/timer.h"
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void initCtcTimer0(void)
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{
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/* Initialize counter 0 */
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TCNT0 = 0;
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/* Enable Counter0 Compare Match A Interrupt */
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TIMSK0 |= (1 << OCIE0A);
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/* Select clock. Prescaler of 8 */
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TCCR0B |= (1 << CS02) | (1 << CS00);
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/* Use CTC Mode */
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TCCR0A |= (1 << WGM01);
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/*
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* OCR0A contains TOP value for counter:
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*/
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OCR0A = 100;
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}
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void initOverflowTimer0(void)
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{
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/* Prescaler = 0 */
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TCCR0B |= (1<<CS00);
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/* Enable Timer Overflow Interrupt */
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TIMSK0 |= (1<<TOIE0);
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}
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void initOverflowTimer1(void)
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{
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TCCR1B |= (1<<CS11);
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TIMSK1 |= (1<<TOIE1);
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}
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ISR(TIMER0_COMPA_vect)
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{
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PORTB |= (1 << PB2);
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}
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