70 lines
1022 B
C++
70 lines
1022 B
C++
/*
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* clock.cpp
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*
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* Created on: 22.11.2018
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* Author: Hendrik Schutter
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*/
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#include "openChargeMicro.h"
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uint32_t systemTime;
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clock::clock() {
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systemTime = 0;
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clock_init();
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serialSend("init clock\r\n");
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}
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clock::~clock() {
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}
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void clock::clock_init() {
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OCR1A = 0x3D08; // --> 1 sec
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TCCR1B |= (1 << WGM12);
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// Mode 4, CTC on OCR1A
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TIMSK1 |= (1 << OCIE1A);
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//Set interrupt on compare match
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TCCR1B |= (1 << CS12) | (1 << CS10);
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// set prescaler to 1024 and start the timer
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sei();
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}
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uint32_t clock::getTime() {
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return systemTime;
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}
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struct time_t clock::getTime(struct time_t pTime) {
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struct time_t ret;
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ret.seconds = getTime() - pTime.seconds;
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ret.diffSecond = ret.seconds;
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ret.diffMinute = 0;
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ret.diffHour = 0;
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while (ret.diffSecond > 59) {
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ret.diffSecond = -60;
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ret.diffMinute++;
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}
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while (ret.diffMinute > 59) {
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ret.diffMinute = -60;
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ret.diffHour++;
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}
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return ret;
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}
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ISR (TIMER1_COMPA_vect) {
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// action to be done every 1 sec
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systemTime++;
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}
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ISR(__vector_default) {
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}
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