Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 61)

daqAdcCalcTrig
Also See: daqSetTriggerEvent, daqAdcSetTrig
Format
daqAdcSetTrig(handle, bipolar, gainVal, voltageLevel, triggerLevel)
Purpose
daqAdcSetTrig configures the device for enhanced triggering.
Parameter Summary
Parameter Type Description
handle DaqHandleT Handle to the device for which the trigger level will be
calculated
bipolar BOOL Boolean that, when true, sets trigger to bipolar, and when
false
, sets trigger to unipolar
gainVal FLOAT Gain value of the trigger channel
voltageLevel FLOAT Voltage level to trigger at
triggerLevel PWORD A pointer to the returned count which is used to program the
trigger with the daqAdcSetTrig function
Parameter Values
handle: obtianed from the daqOpen function
bipolar: valid values are either true (
≠ 0) or false ( = 0)
gainVal: valid values range from 1, 2, 4, 8, 16, 32, 64
voltageLevel: valid values range from –10 to +10 Volts
triggerLevel: pointer to a value from 0 to 65,535
Returns
DaqError See Daq Error Table
For more details on error messages, please refer to the Daq Error Table.
Function Usage
This function has been obsoleted by the daqSetTriggerEvent function, and is
presented here only as a reference. See daqSetTriggerEvent for more details.
The daqAdcCalcTrig function calculates the trigger level and source for an analog trigger. The result of
daqAdcCalcTrig
is stored in the triggerLevel parameter. The value of this parameter can then be
passed to the daqAdcSetTrig function to configure the analog trigger. All of this can be accomplished
using the daqSetTriggerEvent function.
Programmer’s Manual 908594 Daq API Command Reference 4.2-5