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58 lines
2.6 KiB
C
58 lines
2.6 KiB
C
/***********************************************************************/
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/* */
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/* Heptagon */
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/* */
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/* Gwenael Delaval, LIG/INRIA, UJF */
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/* Leonard Gerard, Parkas, ENS */
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/* Adrien Guatto, Parkas, ENS */
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/* Cedric Pasteur, Parkas, ENS */
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/* Marc Pouzet, Parkas, ENS */
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/* */
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/* Copyright 2012 ENS, INRIA, UJF */
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/* */
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/* This file is part of the Heptagon compiler. */
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/* */
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/* Heptagon is free software: you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by */
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/* the Free Software Foundation, either version 3 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* Heptagon is distributed in the hope that it will be useful, */
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/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
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/* GNU General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public License */
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/* along with Heptagon. If not, see <http://www.gnu.org/licenses/> */
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/* */
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/***********************************************************************/
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#include <util/atomic.h>
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#include <avr/interrupt.h>
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#include <avr/io.h>
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#include "avr.h"
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ISR(TIMER1_COMPA_vect) {
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run_timers();
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}
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static inline void set_ocr1a(uint16_t value) {
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OCR1AH = value >> 8;
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OCR1AL = value;
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}
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/* Source: https://adnbr.co.uk/articles/counting-milliseconds */
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void init_timer1() {
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TCCR1B |= _BV(WGM12) | _BV(CS11);
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set_ocr1a((F_CPU / 1000) / 8);
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TIMSK1 |= _BV(OCIE1A);
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sei();
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}
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void atomic_memcpy(void *dest, const void *src, size_t size) {
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ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
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memcpy(dest, src, size);
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}
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}
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