IviSpecAn_ConfigureTriggerSource
IviSpecAnTrigger Capability Group
C Function Prototype
ViStatus IviSpecAn_ConfigureTriggerSource (ViSession vi, ViInt32 triggerSource);
Purpose
This function specifies the trigger source that causes the spectrum analyzer to leave the Wait-for-Trigger state.
Parameters
| Name | Type | Description |
|---|---|---|
| vi | ViSession | The ViSession handle that you obtain from the IviSpecAn_init or IviSpecAn_InitWithOptions function. The handle identifies a particular instrument session. Default Value: None |
| triggerSource | ViInt32 | Specifies the source of the trigger signal that causes the analyzer to leave the Wait-For-Trigger state. The driver uses this value to set the IVISPECAN_ATTR_TRIGGER_SOURCE attribute. Valid Values: - IVISPECAN_VAL_TRIGGER_SOURCE_EXTERNAL - The spectrum analyzer waits until it receives a trigger on the external trigger connector. - IVISPECAN_VAL_TRIGGER_SOURCE_IMMEDIATE - The spectrum analyzer does not wait for a trigger of any kind. - IVISPECAN_VAL_TRIGGER_SOURCE_SOFTWARE - The spectrum analyzer waits until the Send Software Trigger function executes. - IVISPECAN_VAL_TRIGGER_SOURCE_AC_LINE - The spectrum analyzer waits until it receives a trigger on the AC line. - IVISPECAN_VAL_TRIGGER_SOURCE_VIDEO - The spectrum analyzer waits until it receives a video level. Default value: IVISPECAN_VAL_TRIGGER_SOURCE_EXTERNAL |