Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 198)

daqDacWaveGetFreq
Also See: daqDacWaveArm,
daqDacWaveDisarm, daqDacWaveSetFreq
Format
daqDacWaveGetFreq(handle, deviceType, chan, freq)
Purpose
daqDacWaveGetFreq retrieves the current setting for the waveform/pattern output update frequency (in
Hz) for the specified device (selected by daqDacWaveSetClockSource).
Parameter Summary
Parameter Type Description
handle DaqHandleT Handle to the device from which to retrieve the current
waveform output frequency
deviceType DaqDacDeviceType Specifies the DAC type
chan DWORD Specifies the DAC channel
freq PFLOAT Returns the current DAC waveform output frequency
setting
Parameter Values
handle: obtained from the daqOpen function
deviceType: see table below
chan: valid values depend on the values chosen for the deviceType parameter; see the deviceType
table below
freq:
pointer to a single precision floating point value (4 bytes) that will store the update frequency update
upon return from this function.
Parameter Type Definitions
DeviceType–(DaqDacDeviceType)
Definition chan Value Description
0 Start the transfer of waveform/pattern output data where DAC0 is one of the
channels being output.
1 Start the transfer of waveform/pattern output data where DAC1 is one of the
channels being output.
2 Start the transfer of waveform/pattern output data where DAC2 is one of the
channels being output.
DddtLocal
3 Start the transfer of waveform/pattern output data where DAC3 is one of the
channels being output.
DddtLocalDigital 0 Start the transfer waveform/pattern output data where the 16-bit P3 Digital port is
one of the channels being output.
4.4-16 Daq API Command Reference 908494 Programmer’s Manual