Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 216)

daqDacWaveSetMode
Also See: daqDacWaveSetTrig, daqDacWaveSetFreq
Format
daqDacWaveSetMode(handle, deviceType, chan, mode, updateCount)
Purpose
daqDacWaveSetMode sets the waveform/pattern update mode for the output operation.
Parameter Summary
Parameter Type Description
handle DaqHandleT Handle to the device for which the DAC waveform
output mode will be set
deviceType DaqDacDeviceType Specifies the DAC type
chan DWORD Specifies the DAC channel
mode DaqDacWaveformMode Specifies the desired DAC waveform output mode
updateCount DWORD Sets the total sample update count
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
mode: see table below
updateCount: the total number update samples per channel to output can range from 1 to 4,294,967,295;
however, memory limitations may apply
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.
mode–(DaqDacWaveformMode)
Definition Description
DdwmNShot Write the specified number of DAC points, then disarm
DdwmNFileIterations Write the specified number of file iterations, then stop (file mode only)?
DdwmInfinite Cycle through the buffer until the daqDacWaveDisarm function is executed
Returns
DerrNoError No error
4.4-34 Daq API Command Reference 908494 Programmer’s Manual