GtWaveSetTriggerSource

Supported By

GX1110, GX1120

Applies To

Function Generator and Arbitrary Waveform Generator modes.

Purpose

Sets the trigger source.

Syntax

GtWaveSetTriggerSource (nHandle, nChannel, nSource, pnStatus)

Parameters

Name
Type
Comments
nHandle
SHORT
Handle to a GX11X0 board.
nChannel
SHORT
Specified Channel number.
GX1120:
0 = GTWAVE_CHANNEL_A: Channel A.
GX1120:
0 = GTWAVE_CHANNEL_A: Channel A.
1 = GTWAVE_CHANNEL_B: Channel B.
nSource
SHORT
Trigger source are as follows:
0.      GTWAVE_TRIGGER_SOURCE_SOFTWARE: Trigger source is software (immediate).
1.      GTWAVE_TRIGGER_SOURCE_INTERNAL: Trigger source is the internal programmable trigger generator.
2.      GTWAVE_TRIGGER_SOURCE_EXTERNAL: Trigger source is an external input.
3.      GTWAVE_TRIGGER_SOURCE_PXI_STAR_TRIG: Trigger source is the star trigger.
4.   GTWAVE_TRIGGER_ALTERNATE_CHANNEL: Trigger source is the alternate channel.
pnStatus
PSHORT
Returned status: 0 on success, negative number on failure.

Comments

The trigger source can be set to one of the four sources and also to one of the PXI trigger lines. See the GtWaveSetPxiTriggerBusLine function for details.

The function calls GtWaveSynchronizePhases API before returning.

Example

The following example sets the trigger source to software:

 

GtWaveSetTriggerSource (nHandle, GTWAVE_CHANNEL_A, GTWAVE_TRIGGER_SOURCE_SOFTWARE, &nStatus);

 

See Also

GtWaveSetMarkerToPxiTriggerBusLine, GtWaveSetPxiTriggerBusLine, GtWaveSetTriggerBurstCount, GtWaveSetTriggerEdge, GtWaveSetTriggerInternalFrequency, GtWaveSetTriggerMode, GtWaveGetTriggerSource, GtWaveSetTriggerToPxiTriggerBusLine, GtWaveGetErrorString