/****************************************************************************
* SetTrigger
* this function sets all the required trigger parameters, and calls the
* triggering functions
****************************************************************************/
short SetTrigger(Imports.TriggerChannelProperties[] channelProperties, short nChannelProperties, Imports.TriggerConditions[] triggerConditions, short nTriggerConditions, Imports.ThresholdDirection[] directions, Pwq pwq, uint delay, short auxOutputEnabled, int autoTriggerMs)
{
short status;
if (
(status =
Imports.SetTriggerChannelProperties(_handle, channelProperties, nChannelProperties, auxOutputEnabled,
autoTriggerMs)) != 0)
{
return status;
}
if ((status = Imports.SetTriggerChannelConditions(_handle, triggerConditions, nTriggerConditions)) != 0)
{
return status;
}
if (directions == null) directions = new Imports.ThresholdDirection[] { Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None, Imports.ThresholdDirection.None, Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None, Imports.ThresholdDirection.None};
if ((status = Imports.SetTriggerChannelDirections(_handle,
directions[(int)Imports.Channel.ChannelA],
directions[(int)Imports.Channel.ChannelB],
directions[(int)Imports.Channel.ChannelC],
directions[(int)Imports.Channel.ChannelD],
directions[(int)Imports.Channel.External],
directions[(int)Imports.Channel.Aux])) != 0)
{
return status;
}
if ((status = Imports.SetTriggerDelay(_handle, delay)) != 0)
{
return status;
}
if (pwq == null) pwq = new Pwq(null, 0, Imports.ThresholdDirection.None, 0, 0, Imports.PulseWidthType.None);
status = Imports.SetPulseWidthQualifier(_handle, pwq.conditions,
pwq.nConditions, pwq.direction,
pwq.lower, pwq.upper, pwq.type);
return status;
}
/****************************************************************************
* CollectBlockTriggered
* this function demonstrates how to collect a single block of data from the
* unit, when a trigger event occurs.
****************************************************************************/
void CollectBlockTriggered()
{
short triggerVoltage = mv_to_adc(1000, (short)_channelSettings[(int)Imports.Channel.ChannelA].range); // ChannelInfo stores ADC counts
Imports.TriggerChannelProperties[] sourceDetails = new Imports.TriggerChannelProperties[] {
new Imports.TriggerChannelProperties(triggerVoltage,
256*10,
triggerVoltage,
256*10,
Imports.Channel.ChannelA,
Imports.ThresholdMode.Level)};
Imports.TriggerConditions[] conditions = new Imports.TriggerConditions[] {
new Imports.TriggerConditions(Imports.TriggerState.True,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare)};
Imports.ThresholdDirection[] directions = new Imports.ThresholdDirection[]
{ Imports.ThresholdDirection.Rising,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None };
Console.WriteLine("Collect block triggered...");
Console.Write("Collects when value rises past {0}", (_scaleVoltages) ?
adc_to_mv(sourceDetails[0].ThresholdMajor,
(int)_channelSettings[(int)Imports.Channel.ChannelA].range)
: sourceDetails[0].ThresholdMajor);
Console.WriteLine("{0}", (_scaleVoltages) ? ("mV") : ("ADC Counts"));
Console.WriteLine("Press a key to start...");
WaitForKey();
SetDefaults();
/* Trigger enabled
* Rising edge
* Threshold = 1000mV */
SetTrigger(sourceDetails, 1, conditions, 1, directions, null, 0, 0, 0);
BlockDataHandler("Ten readings after trigger", 0);
}
/****************************************************************************
* CollectStreamingTriggered
* this function demonstrates how to collect a stream of data
* from the unit (start collecting on trigger)
***************************************************************************/
void CollectStreamingTriggered()
{
short triggerVoltage = mv_to_adc(1000, (short)_channelSettings[(int)Imports.Channel.ChannelA].range); // ChannelInfo stores ADC counts
Imports.TriggerChannelProperties[] sourceDetails = new Imports.TriggerChannelProperties[] {
new Imports.TriggerChannelProperties( triggerVoltage,
256 * 10,
triggerVoltage,
256 * 10,
Imports.Channel.ChannelA,
Imports.ThresholdMode.Level )};
Imports.TriggerConditions[] conditions = new Imports.TriggerConditions[] {
new Imports.TriggerConditions(Imports.TriggerState.True,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare,
Imports.TriggerState.DontCare)};
Imports.ThresholdDirection[] directions = new Imports.ThresholdDirection[]
{ Imports.ThresholdDirection.Rising,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None,
Imports.ThresholdDirection.None };
Console.WriteLine("Collect streaming triggered...");
Console.WriteLine("Data is written to disk file (stream.txt)");
Console.WriteLine("Press a key to start");
WaitForKey();
SetDefaults();
/* Trigger enabled
* Rising edge
* Threshold = 1000mV */
SetTrigger(sourceDetails, 1, conditions, 1, directions, null, 0, 0, 0);
StreamDataHandler(100000);
}
public Pwq(Imports.PwqConditions[] conditions,
short nConditions,
Imports.ThresholdDirection direction,
uint lower, uint upper,
Imports.PulseWidthType type)
{
this.conditions = conditions;
this.nConditions = nConditions;
this.direction = direction;
this.lower = lower;
this.upper = upper;
this.type = type;
}
