GtWaveGetTriggerSource

Supported By

GX110, GX1120

Applies To

Function Generator and Arbitrary Waveform Generator modes.

Purpose

Returns the trigger source.

Syntax

GtWaveGetTriggerSource (nHandle, nChannel, pnSource, 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.
pnSource
PSHORT
Trigger sources 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 external input.
3.        GTWAVE_TRIGGER_SOURCE_PXI_STAR_TRIG: Trigger source is the PXI star trigger.
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.

Example

The following example returns the trigger source:

 

SHORT nSource;

GtWaveGetTriggerSource (nHandle, GTWAVE_CHANNEL_A, &nSource, &nStatus);

 

See Also

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