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executable file 45 lines (36 sloc) 1.327 kb
// Copyright 2009 Olivier Gillet.
//
// Author: Olivier Gillet (ol.gillet@gmail.com)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// -----------------------------------------------------------------------------
//
// Real time clock.
#ifndef AVRLIB_WATCHDOG_TIMER_H_
#define AVRLIB_WATCHDOG_TIMER_H_
#include <avr/wdt.h>
#include "avrlib/base.h"
namespace avrlib {
// Note: this requires the bootloader to clear the Watchdog timer flags just
// after start-up.
inline void SystemReset(uint8_t interval) {
wdt_enable(interval);
}
inline void ResetWatchdog() {
uint8_t watchdog_status = MCUSR;
MCUSR = 0;
WDTCSR |= _BV(WDCE) | _BV(WDE);
WDTCSR = 0;
}
} // namespace avrlib
#endif // AVRLIB_WATCHDOG_TIMER_H_
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