/// <summary>
/// Asynchronous function that initializes DATAQ device and starts data acquisition
/// </summary>
protected async void initialize()
{
// Get device, preferably by serial number
IDevice device;
try
{
device = await Discovery.BySerial((string)Program.Settings.json["cycle counter"]["serial"]);
}
catch (Exception ex)
{
IReadOnlyList <IDevice> devices = await Discovery.AllDevices();
if (devices.Count > 0)
{
device = devices[0];
}
else
{
device = null;
}
}
if (device == null)
{
MessageBox.Show("DATAQ device not found.");
return;
}
this.di_1100 = (Dataq.Devices.DI1100.Device)device;
// Re-configure device
await this.di_1100.AcquisitionStopAsync();
this.di_1100.Channels.Clear();
this.pressureChannel = (Dataq.Devices.DI1100.AnalogVoltageIn) this.di_1100.ChannelFactory(DataqCycleCounter.IN_PRESSURE, typeof(AnalogVoltageIn));
this.cycleChannel = (Dataq.Devices.DI1100.AnalogVoltageIn) this.di_1100.ChannelFactory(DataqCycleCounter.IN_CYCLE, typeof(AnalogVoltageIn));
this.di_1100.SampleRate = 2 * this.di_1100.SupportedSampleRateRange.Minimum;
// Start device
await this.di_1100.InitializeAsync();
await this.di_1100.AcquisitionStartAsync();
// Start background task for reading data
this.readDataTask = new Task(new Action(this.readDataLoop));
this.readDataTask.Start();
}