|
public GetPwmPinForChannel ( |
||
| channel | ||
| Результат | Cpu.Pin | |
/// <summary>
/// Build an instance of the PWM type
/// </summary>
/// <param name="channel">The channel</param>
/// <param name="period">The period of the pulse</param>
/// <param name="duration">The duration of the pulse. The value should be a fraction of the period</param>
/// <param name="scale">The scale factor for the period/duration (nS, uS, mS)</param>
/// <param name="invert">Whether the output should be inverted or not</param>
public PWM(Cpu.PWMChannel channel, uint period, uint duration, ScaleFactor scale, bool invert)
{
HardwareProvider hwProvider = HardwareProvider.HwProvider;
if (hwProvider == null)
{
throw new InvalidOperationException();
}
m_pin = hwProvider.GetPwmPinForChannel(channel);
m_channel = channel;
//--//
m_period = period;
m_duration = duration;
m_scale = scale;
m_invert = invert;
//--//
try
{
Init();
Commit();
Port.ReservePin(m_pin, true);
}
catch
{
Dispose(false);
}
}
//--//
/// <summary>
/// Build an instance of the PWM type
/// </summary>
/// <param name="channel">The channel to use</param>
/// <param name="frequency_Hz">The frequency of the pulse in Hz</param>
/// <param name="dutyCycle">The duty cycle of the pulse as a fraction of unity. Value should be between 0.0 and 1.0</param>
/// <param name="invert">Whether the output should be inverted or not</param>
public PWM(Cpu.PWMChannel channel, double frequency_Hz, double dutyCycle, bool invert)
{
HardwareProvider hwProvider = HardwareProvider.HwProvider;
if (hwProvider == null)
{
throw new InvalidOperationException();
}
m_pin = hwProvider.GetPwmPinForChannel(channel);
m_channel = channel;
//--//
m_period = PeriodFromFrequency(frequency_Hz, out m_scale);
m_duration = DurationFromDutyCycleAndPeriod(dutyCycle, m_period);
m_invert = invert;
//--//
try
{
Init();
Commit();
Port.ReservePin(m_pin, true);
}
catch
{
Dispose(false);
}
}
