Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 194)

daqDacWaveArm
Also See: daqDacWaveDisarm
Format
daqDacWaveArm(handle, deviceType)
Purpose
daqDacWaveArm arms a waveform/pattern output for all channels configured for waveform/pattern output
modes for the specified device.
Parameter Summary
Parameter Type Description
handle DaqHandleT Handle to the device for which a DAC waveform output will
be armed
deviceType DaqDacDeviceType Specifies the DAC type
Parameter Values
handle: obtained from the daqOpen function
deviceType: see table below
Parameter Type Definitions
deviceType-(DaqDacDeviceType)
Definition Description
DddtLocal DAC output from P1 for ISA type DaqBoards;
DAC output from P3.
DddtLocalDigital DAC output from the 16-bit P3 digital port.
Returns
DerrNoError No error
Function Usage
The term waveform/pattern output is used extensively throughout the entries for the
functions of the form daqDac…. This refers to an analog waveform output modes and/or
digital pattern output modes. These terms describe output to digital-to-analog converter
(DAC) channels and/or digital input/output (DIO) channels that are synchronously updated
by a clock source defined by the application.
The daqDacWaveArm function enables a waveform/pattern output based upon the current waveform/pattern
output channel configuration. Channels configured for waveform/pattern output need to be set either
DdomStaticWave
or DdomDynamicWave output mode to be included in the waveform/pattern output
operation
(see daqDacSetOutputMode for more details on configuration channel output modes).
4.4-12 Daq API Command Reference 908494 Programmer’s Manual