kazushiro tanimoto / Mbed 2 deprecated sagawa_lpc1114

Sagawa Electronics,inc.

Dependencies:   mbed

Fork of sagawa_lpc1114 by kazushiro tanimoto

SoftPWM/SoftPWM.h@2:de000dc1b277, 2016-11-26 (annotated)

Committer:
zero515
Date:
Sat Nov 26 19:25:42 2016 +0000
Revision:
2:de000dc1b277
Parent:
0:d90f3421aaef 
Sagawa Electronics,inc.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
zero515 0:d90f3421aaef 1 #ifndef SoftPWM_H
zero515 0:d90f3421aaef 2 #define SoftPWM_H
zero515 0:d90f3421aaef 3 #define POSITIVE true
zero515 0:d90f3421aaef 4 #define NEGATIVE false
zero515 0:d90f3421aaef 5
zero515 0:d90f3421aaef 6 #include "mbed.h"
zero515 0:d90f3421aaef 7
zero515 0:d90f3421aaef 8 class SoftPWM
zero515 0:d90f3421aaef 9 {
zero515 0:d90f3421aaef 10 private:
zero515 0:d90f3421aaef 11 Timeout _timeout;
zero515 0:d90f3421aaef 12 Ticker _ticker;
zero515 0:d90f3421aaef 13 void end();
zero515 0:d90f3421aaef 14 DigitalOut pulse;
zero515 0:d90f3421aaef 15 bool positive;
zero515 0:d90f3421aaef 16 void TickerInterrapt();
zero515 0:d90f3421aaef 17 float width;
zero515 0:d90f3421aaef 18 float interval;
zero515 0:d90f3421aaef 19 public:
zero515 0:d90f3421aaef 20 SoftPWM(PinName,bool mode=true);
zero515 0:d90f3421aaef 21 // void attach_us(int);
zero515 0:d90f3421aaef 22 void start();
zero515 0:d90f3421aaef 23 void write(float);
zero515 0:d90f3421aaef 24 float read();
zero515 0:d90f3421aaef 25 void pulsewidth(float);
zero515 0:d90f3421aaef 26 void pulsewidth_ms(int);
zero515 0:d90f3421aaef 27 void pulsewidth_us(int);
zero515 0:d90f3421aaef 28 void period(float);
zero515 0:d90f3421aaef 29 void period_ms(int);
zero515 0:d90f3421aaef 30 void period_us(int);
zero515 0:d90f3421aaef 31 void stop();
zero515 0:d90f3421aaef 32 operator float() {
zero515 0:d90f3421aaef 33 if ( width <= 0.0 ) return 0.0;
zero515 0:d90f3421aaef 34 if ( width > 1.0 ) return 1.0;
zero515 0:d90f3421aaef 35 return width / interval;
zero515 0:d90f3421aaef 36 }
zero515 0:d90f3421aaef 37 SoftPWM& operator=(float duty) {
zero515 0:d90f3421aaef 38 width = interval * duty;
zero515 0:d90f3421aaef 39 if ( duty <= 0.0 ) width = 0.0;
zero515 0:d90f3421aaef 40 if ( duty > 1.0 ) width = interval;
zero515 0:d90f3421aaef 41 return *this;
zero515 0:d90f3421aaef 42 }
zero515 0:d90f3421aaef 43
zero515 0:d90f3421aaef 44 };
zero515 0:d90f3421aaef 45 #endif