63 lines
2.8 KiB
C++
63 lines
2.8 KiB
C++
/***************************************************************************
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* Copyright (C) 2017 by Matteo Michele Piazzolla *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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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* As a special exception, if other files instantiate templates or use *
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* macros or inline functions from this file, or you compile this file *
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* and link it with other works to produce a work based on this file, *
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* this file does not by itself cause the resulting work to be covered *
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* by the GNU General Public License. However the source code for this *
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* file must still be made available in accordance with the GNU General *
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* Public License. This exception does not invalidate any other reasons *
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* why a work based on this file might be covered by the GNU General *
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* Public License. *
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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 this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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namespace miosix {
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/**
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* Driver for the STM32 independent watchdog
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*/
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class IWatchDog
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{
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public:
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/**
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* \return an instance of this class (singleton)
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*/
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static IWatchDog& instance();
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/**
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* Enable the watchdog
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* \param ms reload period, from 1 (1 millisecond) to 4096 (4.096 seconds)
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*/
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void enable(int ms);
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/**
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* If the watchdog is not periodically reloaded at least within the
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* period selected by enable, the microcontroller is reset.
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* The datsheet says that the oscillator clocking the watchdog can be
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* up to twice as fast, so it is recomended to reload the watchdog three
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* to four times faster to prevent spurious resets.
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*/
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void refresh();
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private:
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IWatchDog(const IWatchDog&)=delete;
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IWatchDog& operator=(const IWatchDog&)=delete;
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IWatchDog() {}
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};
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} //namespace miosix
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