Jean-Michel Ambroise / JMAPwmOut

Une version perso de PwmOut

Une version à peine modifié de la librairie PwmOut

JMAPwmOut.hpp@0:b2ab9e77dd7e, 2017-05-26 (annotated)

Committer:
jmambroi
Date:
Fri May 26 14:15:14 2017 +0000
Revision:
0:b2ab9e77dd7e
Ok

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jmambroi 0:b2ab9e77dd7e 1 #ifndef _JMAPWMOUT_HPP_
jmambroi 0:b2ab9e77dd7e 2 #define _JMAPWMOUT_HPP_
jmambroi 0:b2ab9e77dd7e 3
jmambroi 0:b2ab9e77dd7e 4 #define POSITIVE true
jmambroi 0:b2ab9e77dd7e 5 #define NEGATIVE false
jmambroi 0:b2ab9e77dd7e 6
jmambroi 0:b2ab9e77dd7e 7 #include "mbed.h"
jmambroi 0:b2ab9e77dd7e 8
jmambroi 0:b2ab9e77dd7e 9 class JMAPwmOut {
jmambroi 0:b2ab9e77dd7e 10 public :
jmambroi 0:b2ab9e77dd7e 11 JMAPwmOut(PinName);
jmambroi 0:b2ab9e77dd7e 12 // void attach_us(int);
jmambroi 0:b2ab9e77dd7e 13 void start();
jmambroi 0:b2ab9e77dd7e 14 void write(float);
jmambroi 0:b2ab9e77dd7e 15 float read();
jmambroi 0:b2ab9e77dd7e 16 void pulsewidth(float);
jmambroi 0:b2ab9e77dd7e 17 void pulsewidth_ms(int);
jmambroi 0:b2ab9e77dd7e 18 void pulsewidth_us(int);
jmambroi 0:b2ab9e77dd7e 19 void period(float);
jmambroi 0:b2ab9e77dd7e 20 void period_ms(int);
jmambroi 0:b2ab9e77dd7e 21 void period_us(int);
jmambroi 0:b2ab9e77dd7e 22 void stop();
jmambroi 0:b2ab9e77dd7e 23 operator float() {
jmambroi 0:b2ab9e77dd7e 24 if ( _width <= 0 ) return 0.0;
jmambroi 0:b2ab9e77dd7e 25 if ( _width > 1 ) return 1.0;
jmambroi 0:b2ab9e77dd7e 26 return _width / _interval;
jmambroi 0:b2ab9e77dd7e 27 }
jmambroi 0:b2ab9e77dd7e 28 JMAPwmOut& operator=(float duty) {
jmambroi 0:b2ab9e77dd7e 29 _width = _interval * duty;
jmambroi 0:b2ab9e77dd7e 30 if ( duty <= 0 ) _width = 0.0;
jmambroi 0:b2ab9e77dd7e 31 if ( duty > 1 ) _width = _interval;
jmambroi 0:b2ab9e77dd7e 32 return *this;
jmambroi 0:b2ab9e77dd7e 33 }
jmambroi 0:b2ab9e77dd7e 34
jmambroi 0:b2ab9e77dd7e 35 private :
jmambroi 0:b2ab9e77dd7e 36 Timeout _timeout;
jmambroi 0:b2ab9e77dd7e 37 Ticker _ticker;
jmambroi 0:b2ab9e77dd7e 38 void TickerInterrupt();
jmambroi 0:b2ab9e77dd7e 39 void end();
jmambroi 0:b2ab9e77dd7e 40 DigitalOut _outPin;
jmambroi 0:b2ab9e77dd7e 41 float _width;
jmambroi 0:b2ab9e77dd7e 42 float _interval;
jmambroi 0:b2ab9e77dd7e 43
jmambroi 0:b2ab9e77dd7e 44 };
jmambroi 0:b2ab9e77dd7e 45 #endif