public DTControl(double frequency, int[] analogChannels, Logger log, DoneSignalHandler callback)
{
try
{
m_deviceMgr = DeviceMgr.Get();
if (!m_deviceMgr.HardwareAvailable())
{
throw new Exception("No Devices Available.");
}
// Get first available device
m_device = m_deviceMgr.GetDevice(m_deviceMgr.GetDeviceNames()[0]);
// Get subsystems
m_ainSS = m_device.AnalogInputSubsystem(0);
m_dinSS = m_device.DigitalInputSubsystem(0);
m_doutSS = m_device.DigitalOutputSubsystem(0);
/*
* ANALOG SETUP
*/
//Add event handlers
m_ainSS.DriverRunTimeErrorEvent += HandleDriverRunTimeErrorEvent;
m_ainSS.BufferDoneEvent += HandleBufferDone;
m_ainSS.QueueDoneEvent += HandleQueueDone;
m_ainSS.QueueStoppedEvent += HandleQueueStopped;
// Set frequency
m_frequency = (m_ainSS.Clock.MaxFrequency < frequency) ? m_ainSS.Clock.MaxFrequency : frequency;
m_ainSS.Clock.Frequency = m_frequency;
m_ainSS.VoltageRange = new Range(-10, 10);
// Setup buffers
m_ainSS.BufferQueue.FreeAllQueuedBuffers(); //just in case some are in the queue
m_daqBuffers = new OlBuffer[MaxBuffers];
for (int i = 0; i < MaxBuffers; i++)
{
// Allocate and place each buffer in queue
m_daqBuffers[i] = new OlBuffer(SampleSize, m_ainSS);
m_ainSS.BufferQueue.QueueBuffer(m_daqBuffers[i]);
}
// Set for continuous operation
m_ainSS.DataFlow = DataFlow.Continuous;
// Set channel list
m_ainSS.ChannelList.Clear();
m_physicalChannels = new List <int>();
foreach (int channel in analogChannels)
{
ChannelListEntry channelListEntry = new ChannelListEntry(m_ainSS.SupportedChannels.GetChannelInfo(SubsystemType.AnalogInput, channel));
channelListEntry.Gain = 1.0;
m_ainSS.ChannelList.Add(channelListEntry);
m_physicalChannels.Add(channel);
}
// Save configuration
m_ainSS.Config();
/*
* DIGITAL SETUP
*/
m_dinSS.DataFlow = DataFlow.SingleValue;
m_doutSS.DataFlow = DataFlow.SingleValue;
m_dinSS.Config();
m_doutSS.Config();
doneSignalHandler += callback;
Log = log;
Log("DT9816 and all subsystems initialized.");
// Display actual hardware frequency set
Log(String.Format("Actual Hardware Frequency = {0:0.000}", m_ainSS.Clock.Frequency));
}
catch (Exception ex)
{
throw ex;
}
}
