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avr_demo/button_debounce/timer.h

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2011-10-10 23:18:21 +02:00
#ifndef TIMER_H
#define TIMER_H
#include <avr/io.h>
#include <avr/interrupt.h>
/*
* Initializes the timer, and resets the timer count to 0. Sets up the ISRs
* linked with timer1.
*/
void timer_init();
/*
* Returns the number of milliseconds which have elapsed since the
* last time timer_init() was called. Overflows after about 49 days.
*/
uint64_t timer_millis();
/*
* Returns the number of microseconds which have elapsed since the
* last time timer_init() was called. Overflows after about 71 minutes.
*/
uint64_t timer_micros();
#endif