public bool StartWaveform()
{
if (DAQTask == null)
{
return(false);
}
lastStateIdx = 0;
running = true;
if (!periodicWaveform)
{
if (rnd == null)
{
rnd = new Random();
}
if (waveform[lastStateIdx].state == true)
{
waveform[lastStateIdx].durationMilliSec = rnd.Next(onMinDuration, onMaxDuration);
}
else
{
waveform[lastStateIdx].durationMilliSec = rnd.Next(offMinDuration, offMaxDuration);
}
}
bool signalLevel = GetSignalLevel(waveform[lastStateIdx].state);
if (signalLevel == true)
{
transitionevent.Transition = DigitalLineTransition.ToHigh;
}
else
{
transitionevent.Transition = DigitalLineTransition.ToLow;
}
OnWaveformTransition(transitionevent);
try
{
writer.BeginWriteSingleSampleSingleLine(true, signalLevel, new AsyncCallback(OnDataWritten), DAQTask);
}
catch (DaqException ex)
{
MessageBox.Show(ex.Message);
running = false;
}
stopped = !running;
return(running);
}
public void setLine(uint line, bool value)
{
Task task = new Task();
string devFullname = string.Format("{0}/port0/line{1}", name, line);
DOChannel dochannel = task.DOChannels.CreateChannel(devFullname, "", ChannelLineGrouping.OneChannelForEachLine);
task.Start();
DigitalSingleChannelWriter writer = new DigitalSingleChannelWriter(task.Stream);
writer.BeginWriteSingleSampleSingleLine(true, value, null, null);
task.Stop();
}
private void StartGenerating()
{
if (!stopimmediate)
{
lastStateIdx = 0;
}
stopimmediate = false;
running = true;
waitDurationStopwatch = new Stopwatch();
delaystopwatch = new Stopwatch();
microsec2ticks = Convert.ToDouble(Stopwatch.Frequency) / 1000000.0;
if (!periodicWaveform)
{
if (rnd == null)
{
rnd = new Random();
}
if (waveform[lastStateIdx].state == true)
{
waveform[lastStateIdx].durationMicroSec = rnd.Next(onMinDuration, onMaxDuration);
}
else
{
waveform[lastStateIdx].durationMicroSec = rnd.Next(offMinDuration, offMaxDuration);
}
}
else
{
//startstopTransitionTime
if (smoothStartStop)
{
smoothtransitionStep = 0;
smoothstarting = true;
double multiplier = GetSmoothStart_StepMultiplier(smoothtransitionStep);
waveform[0].durationMicroSec = Convert.ToInt32(onDuration * multiplier);
waveform[1].durationMicroSec = Convert.ToInt32(offDuration * multiplier);
smoothtransitionTimer = new System.Timers.Timer();
smoothtransitionTimer.Interval = startstopTransitionTime / 4;
smoothtransitionTimer.Elapsed += OnSmoothTransitionTimedEvent;
smoothtransitionTimer.AutoReset = false;
smoothtransitionTimer.Enabled = true;
smoothtransition_inprogress = true;
}
else
{
waveform[0].durationMicroSec = onDuration;
waveform[1].durationMicroSec = offDuration;
}
}
bool signalLevel = GetSignalLevel(waveform[lastStateIdx].state);
if (signalLevel == true)
{
activeTransitionCounter++;
transitionevent.Transition = DigitalLineTransition.ToHigh;
}
else
{
transitionevent.Transition = DigitalLineTransition.ToLow;
}
OnWaveformTransition(transitionevent);
if (waveformType == WaveformType.DigitalIO)
{
if (DAQTask == null)
{
return;
}
try
{
writer.BeginWriteSingleSampleSingleLine(true, signalLevel, new AsyncCallback(OnDataWritten), DAQTask);
}
catch (DaqException ex)
{
MessageBox.Show(ex.Message);
running = false;
}
}
if (waveformType == WaveformType.TCP)
{
if (tcpClientGeneratorThread == null)
{
tcpClientGeneratorThread = new Thread(new ThreadStart(DoTCPConnection));
}
if (tcpClientGeneratorThread.ThreadState == System.Threading.ThreadState.Unstarted)
{
tcpClientGeneratorThread.Start();
}
running = true;
}
startCounter++;
stopped = !running;
if (running)
{
stateevent.State = WaveformState.Running;
}
else
{
stateevent.State = WaveformState.Stopped;
}
OnWaveformStateChange(stateevent);
}
