Bob Merrison-Hort / Mbed 2 deprecated elec350

elec350

Dependencies:   mbed

Fork of elec350 by Bob Merrison-Hort

soft_pwm.cpp

Committer:
rmerrisonhort
Date:
2015-10-21
Revision:
10:021f19a9861f
Child:
11:4685f33a2468

File content as of revision 10:021f19a9861f:

#include "soft_pwm.h"

SoftPwm::SoftPwm(float initialPeriod, float initialDutyCycle)
{
    this->period = initialPeriod;
    this->dutyCycle = initialDutyCycle;
    this->timer.start();
}

void SoftPwm::setPeriod(float newPeriod)
{
    this->period = newPeriod;
}

void SoftPwm::setDutyCycle(float newDutyCycle)
{
    this->dutyCycle = newDutyCycle;
}

bool SoftPwm::isOn()
{
    float phase = this->timer.read() / this->period;
    if (phase > 1) {
        this->timer.reset();
    }
    if (phase < this->dutyCycle) {
        return true;
    } else { 
        return false;
    }
}