/// <summary>
/// Construct a dual half bridge with PWM speed control
/// </summary>
/// <param name="A">The "A" channel half-bridge input</param>
/// <param name="B">The "B" channel half-bridge input</param>
/// <param name="Enable">The PWM input used to control the output enable</param>
public DualHalfBridge(DigitalOut A, DigitalOut B, Pwm Enable)
{
Enable.EnablePwmAsync();
Enable.DutyCycle = 0;
Enable.EnablePwmAsync();
A.MakeDigitalPushPullOutAsync();
B.MakeDigitalPushPullOutAsync();
enablePwm = Enable;
this.A = A;
this.B = B;
}
private void Start(LedChannelCount channelCount)
{
channels = (int)channelCount;
currentValue = new BitArray(channels);
for (var i = 0; i < channels; i++)
{
Leds.Add(new Led(this, i));
}
if (oe != null)
{
oe.MakeDigitalPushPullOutAsync();
oe.DigitalValue = false;
HasGlobalBrightnessControl = false;
}
else if (oePwm != null)
{
oePwm.EnablePwmAsync();
oePwm.PulseWidth = 0;
HasGlobalBrightnessControl = true;
}
else
{
HasGlobalBrightnessControl = false;
}
HasIndividualBrightnessControl = false;
Brightness = 1.0; // turn on the display
}