File content as of revision 0:813ee8141cdd:

#ifndef SoftPWM_H
#define SoftPWM_H
#define POSITIVE true
#define NEGATIVE false

#include "mbed.h"

class SoftPwmOut  
{
public:
    SoftPwmOut(PinName); 
//    void attach_us(int);
    void start();
    void write(float);
    float read();
    void pulsewidth(float);
    void pulsewidth_ms(int);
    void pulsewidth_us(int);
    void period(float);
    void period_ms(int);
    void period_us(int);
    void stop();
    operator float()  { 
        if ( _width <= 0.0 ) return 0.0;
        if ( _width > 1.0 )  return 1.0;
        return _width / _interval;
    }
    SoftPwmOut& operator=(float duty)  {
        _width = _interval * duty;
        if ( duty <= 0.0 ) _width =  0.0;
        if ( duty > 1.0 )  _width =  _interval;
        return *this;
    }
    
private:
    Timeout _timeout;
    Ticker _ticker;
    void TickerInterrupt();
    void end();
    DigitalOut _outPin;
    float _width;
    float _interval;
                
};
#endif