DAQmxWriteBinaryU16

int32 DAQmxWriteBinaryU16 (TaskHandle taskHandle, int32 numSampsPerChan, bool32 autoStart, float64 timeout, bool32 dataLayout, uInt16 writeArray[], int32 *sampsPerChanWritten, bool32 *reserved);

Purpose

Writes unscaled, unsigned 16-bit integer samples to the task.

Note If you configured timing for your task, your write is considered a buffered write. Buffered writes require a minimum buffer size of 2 samples. If you do not configure the buffer size using DAQmxCfgOutputBuffer, NI-DAQmx automatically configures the buffer when you configure sample timing. If you attempt to write one sample for a buffered write without configuring the buffer, you will receive an error.

Parameters

Input
Name	Type	Description
taskHandle	TaskHandle	The task to write samples to.
numSampsPerChan	int32	The number of samples, per channel, to write. You must pass in a value of 0 or more in order for the sample to write. If you pass a negative number, this function returns an error.
autoStart	bool32	Specifies whether or not this function automatically starts the task if you do not start it.
timeout	float64	The amount of time, in seconds, to wait for this function to write all the samples. The default value is 10.0 seconds. To specify an infinite wait, pass -1 (DAQmx_Val_WaitInfinitely). This function returns an error if the timeout elapses. A value of 0 indicates to try once to write the submitted samples. If this function successfully writes all submitted samples, it does not return an error. Otherwise, the function returns a timeout error and returns the number of samples actually written.
dataLayout	bool32	Specifies how the samples are arranged, either interleaved or noninterleaved. Value Description DAQmx_Val_GroupByChannel Group by channel (noninterleaved) DAQmx_Val_GroupByScanNumber Group by sample (interleaved)
writeArray	uInt16 []	The array of 16-bit samples to write to the task.
reserved	bool32 *	Reserved for future use. Pass NULL to this parameter.
Output
Name	Type	Description
sampsPerChanWritten	int32 *	The actual number of samples per channel successfully written to the buffer.

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.