async Task IPortExpanderParent.OutputValueChanged(IPortExpanderPin portExpanderPin)
{
olat.Set(portExpanderPin.PinNumber, portExpanderPin.DigitalValue);
if (AutoFlush)
{
await FlushAsync().ConfigureAwait(false);
}
}
/// <summary>
/// Called when the output value of any pin has changed and should be written to the port
/// </summary>
/// <param name="portExpanderPin">The pin whose value changed</param>
protected override Task outputValueChanged(IPortExpanderPin portExpanderPin)
{
if (AutoFlush)
{
return(FlushAsync());
}
return(Task.CompletedTask);
}
/// <summary>
/// Called when any pin's mode changes
/// </summary>
/// <param name="portExpanderPin">The pin whose mode has changed</param>
protected override Task outputModeChanged(IPortExpanderPin portExpanderPin)
{
// we set the I/O mode by writing a 1 or 0 to the output port, so just
// flush out the data
if (AutoFlush)
{
return(FlushAsync());
}
return(Task.CompletedTask);
}
async Task IPortExpanderParent.OutputModeChanged(IPortExpanderPin portExpanderPin)
{
var pinNumber = portExpanderPin.PinNumber;
iodir.Set(pinNumber, portExpanderPin.Mode == PortExpanderPinMode.DigitalInput);
await dev.WriteByteDataAsync((byte)Registers.IoDirection, iodir.GetBytes()[0]).ConfigureAwait(false);
var pin = Pins[pinNumber];
gppu.Set(pinNumber, pin.PullUpEnabled);
await dev.WriteByteDataAsync((byte)Registers.GpPullUp, gppu.GetBytes()[0]).ConfigureAwait(false);
}
/// <summary> /// Called whenever the mode of a pin changes /// </summary> /// <param name="portExpanderPin">The pin who has a new mode</param> protected abstract Task outputModeChanged(IPortExpanderPin portExpanderPin);
Task IPortExpanderParent.OutputModeChanged(IPortExpanderPin portExpanderPin)
{
return(outputModeChanged(portExpanderPin));
}
