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DiscretTimer.h
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DiscretTimer.h
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/*
DiscretTimer.h -- simple discretization timer
Copyright (c) 2017 Alex Shavlovsky. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DISCRETTIMER_H_
#define DISCRETTIMER_H_
class DiscretTimer {
uint32_t MinSamplePeriod; // min sampling interval
uint32_t TimeNow; // corrent time stamp
uint32_t TimeLast; // previous time stamp
public:
DiscretTimer(uint32_t SetMinSamplePeriod):MinSamplePeriod(SetMinSamplePeriod){
TimeLast=millis();
}
void setPeriod(uint32_t SetMinSamplePeriod){
MinSamplePeriod=SetMinSamplePeriod;
}
bool onSample() {
TimeNow=millis();
if(TimeNow - TimeLast >= MinSamplePeriod) {
TimeLast = TimeNow;
return true;
}
return false;
}
};
#endif //DISCRETTIMER_H_