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WaveForms™ SDK Reference Manual
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Page 29 of 85
FDwfAnalogInTriggerChannelGet(HDWF hdwf, int *pidxChannel)
Parameters:
- hdwf – Interface handle.
- pidxChannel – Variable to receive the current trigger channel index.
The function above is used to retrieve the current trigger channel index.
FDwfAnalogInTriggerFilterInfo(HDWF hdwf, int *pfsfilter)
Parameters:
- hdwf – Interface handle.
- pfsFilter – Variable to receive the supported trigger filters.
The function above returns the supported trigger filters. They are returned (by reference) as a bit field. This bit
field can be parsed using the IsBitSet Macro. Individual bits are defined using the FILTER constants in DWF.h.
Select trigger detector sample source, FILTER:
 filterDecimate: Looks for trigger in each ADC conversion, can detect glitches.
 filterAverage: Looks for trigger only in average of N samples, given by FDwfAnalogInFrequencySet.
FDwfAnalogInTriggerFilterSet(HDWF hdwf, FILTER filter)
Parameters:
- hdwf – Interface handle.
- filter – Trigger filter to set.
The function above is used to set the trigger filter.
FDwfAnalogInTriggerFilterGet(HDWF hdwf, FILTER *pfilter)
Parameters:
- hdwf – Interface handle.
- pfilter – Variable to receive the current trigger filter.
The function above is used to get the trigger filter.