public Windows10PwmDriverChannel(WinPwm.PwmController winController, int channelIndex)
{
_winPin = winController.OpenPin(channelIndex);
if (_winPin == null)
{
throw new ArgumentOutOfRangeException($"The PWM chip is unable to open a channel at index {channelIndex}.", nameof(channelIndex));
}
}
static void LedInit(PwmController controller)
{
Red = controller.OpenPin(LedPinRed);
Green = controller.OpenPin(LedPinGreen);
Blue = controller.OpenPin(LedPinBlue);
Red.Start();
Green.Start();
Blue.Start();
}
public async void Run(IBackgroundTaskInstance taskInstance)
{
deferral = taskInstance.GetDeferral();
// pwmController = (await PwmController.GetControllersAsync(PwmPCA9685.PwmProviderPCA9685.GetPwmProvider()))[0];
pwmController = (await PwmController.GetControllersAsync(PwmSoftware.PwmProviderSoftware.GetPwmProvider()))[0];
pwmController.SetDesiredFrequency(50);
motorPin = pwmController.OpenPin(13);
motorPin.SetActiveDutyCyclePercentage(RestingPulseLegnth);
motorPin.Start();
secondMotorPin = pwmController.OpenPin(6);
secondMotorPin.SetActiveDutyCyclePercentage(RestingPulseLegnth);
secondMotorPin.Start();
timer = ThreadPoolTimer.CreatePeriodicTimer(Timer_Tick, TimeSpan.FromSeconds(2));
}
/// <summary>
/// Initializes a new instance of the <see cref="Windows10PwmChannel"/> class.
/// </summary>
/// <param name="chip">The PWM chip number.</param>
/// <param name="channel">The PWM channel number.</param>
/// <param name="frequency">The frequency in hertz.</param>
/// <param name="dutyCycle">The duty cycle percentage represented as a value between 0.0 and 1.0.</param>
public Windows10PwmChannel(
int chip,
int channel,
int frequency = 400,
double dutyCycle = 0.5)
{
// When running on Hummingboard we require to use the default chip.
var deviceInfo = new EasClientDeviceInformation();
bool useDefaultChip = false;
if (deviceInfo.SystemProductName.IndexOf("Hummingboard", StringComparison.OrdinalIgnoreCase) >= 0)
{
useDefaultChip = true;
}
// Open the Windows PWM controller for the specified PWM chip.
string deviceSelector = useDefaultChip ? WinPwm.PwmController.GetDeviceSelector() : WinPwm.PwmController.GetDeviceSelector($"PWM{chip}");
DeviceInformationCollection?deviceInformationCollection = DeviceInformation.FindAllAsync(deviceSelector).WaitForCompletion();
if (deviceInformationCollection is null || deviceInformationCollection.Count == 0)
{
throw new ArgumentException($"No PWM device exists for PWM chip at index {chip}.", nameof(chip));
}
string deviceId = deviceInformationCollection[0].Id;
WinPwm.PwmController?winController = WinPwm.PwmController.FromIdAsync(deviceId).WaitForCompletion();
if (winController is null)
{
throw new Exception("A PWM device could not be found.");
}
WinPwm.PwmPin?winPin = winController.OpenPin(channel);
if (winPin is null)
{
throw new ArgumentOutOfRangeException(nameof(channel), $"The PWM chip is unable to open a channel at index {channel}.");
}
_winController = winController;
_winPin = winPin;
Frequency = frequency;
DutyCycle = dutyCycle;
}
public void Dispose()
{
this.Stop();
_winPin?.Dispose();
_winPin = null;
}
/// <inheritdoc/>
public void Dispose()
{
if (bluePin != null)
{
if (bluePin.IsStarted) { bluePin.Stop(); }
bluePin.Dispose();
bluePin = null;
}
if (greenPin != null)
{
if (greenPin.IsStarted) { greenPin.Stop(); }
greenPin.Dispose();
greenPin = null;
}
if (redPin != null)
{
if (redPin.IsStarted) { redPin.Stop(); }
redPin.Dispose();
redPin = null;
}
}