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/*
*/
#include "common.h"
//#include <avr/power.h>
//#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <util/atomic.h>
//#include <stdio.h>
#include "timer.h"
/* timer interrupt/overflow counter */
volatile uint32_t timestamp;
/*---------------------------------------------------------*/
/* 1000Hz timer interrupt generated by OC3A */
/*---------------------------------------------------------*/
ISR(TIMER3_COMPA_vect)
{
static int_fast8_t tick_10ms;
int_fast8_t i;
timestamp++;
i = tick_10ms + 1;
if (i == 10) {
i = 0;
Stat |= S_10MS_TO;
/* Drive timer procedure of low level disk I/O module */
//disk_timerproc();
}
tick_10ms = i;
}
/*--------------------------------------------------------------------------*/
#if 0
void do_10ms(void)
{
if (to_counter)
to_counter--;
}
#endif
/*--------------------------------------------------------------------------*/
#if 0
void timer_setup(void)
{
/* Clock */
CLKPR = _BV(CLKPCE);
CLKPR = 0;
/* Timer */
OCR1A = F_CPU / 1000 - 1; // Timer1: 1000Hz interval (OC1A)
TCCR1B = 0b00001001;
TIMSK1 = _BV(OCIE1A); // Enable TC1.oca interrupt
}
#endif
uint32_t get_timer(uint32_t base)
{
uint32_t ret;
ATOMIC_BLOCK(ATOMIC_FORCEON)
{
ret = timestamp;
}
return ret - base;
}
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