Configures when the DAQ device transfers data to a peripheral device, using an imported sample clock to control burst handshaking timing.
Parameters
Input
Name
Type
Description
taskHandle
TaskHandle
The task used in this function.
sampleMode
int32
Specifies whether the task acquires or generates samples continuously or if it acquires or generates a finite number of samples.
Value
Description
DAQmx_Val_FiniteSamps
Acquire or generate a finite number of samples.
DAQmx_Val_ContSamps
Acquire or generate samples until you stop the task.
DAQmx_Val_HWTimedSinglePoint
Acquire or generate samples continuously using hardware timing without a buffer. Hardware timed single point sample mode is supported only for the sample clock and change detection timing types.
sampsPerChan
uInt64
The number of samples to acquire from each channel if sampleMode is DAQmx_Val_FiniteSamps. If sampleMode is DAQmx_Val_ContSamps, NI-DAQmx uses this value to determine the buffer size.
sampleClkRate
float64
Specifies the sampling rate in samples per channel per second. If you use an external source for the Sample Clock, set this input to the maximum expected rate of that clock.
sampleClkSrc
const char []
Specifies the terminal of the signal to use as the Sample Clock.
sampleClkActiveEdge
int32
Specifies on which edge of a clock pulse sampling takes place. This property is useful primarily when the signal you use as the Sample Clock is not a periodic clock.
Value
Description
DAQmx_Val_Rising
Acquire or generate samples on the rising edges of the Sample Clock.
DAQmx_Val_Falling
Acquire or generate samples on the falling edges of the Sample Clock.
pauseWhen
int32
Specifies whether the task pauses while the signal is high or low.
readyEventActiveLevel
int32
Specifies the polarity for the Ready for Transfer event.
Return Value
Name
Type
Description
status
int32
The error code returned by the function in the event of an error or warning. A value of 0 indicates success. A positive value indicates a warning. A negative value indicates an error.
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