niHSDIO Configure Data Position VI

NI Digital Waveform Generator/Analyzer Help

Edition Date: June 2013

Part Number: 370520P-01

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Installed With: NI-HSDIO

Configures the various ways the data is clocked relative to the Sample clock.

Refer to the Data Position Delay property for more information about multibank data delay.

Refer to the Acquisition and Generation books for your device for timing diagrams that illustrate the effects of data position changes.

Related Topics

niHSDIO Configure Data Position

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instrument handle identifies your instrument session. instrument handle is obtained from the niHSDIO Init Acquisition Session VI, the niHSDIO Init Generation Session VI, or the niHSDIO Init Ext Cal VI.

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channel list specifies which channels to apply settings to.

Leave channel list blank to apply to all channels.

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position specifies which edge of the Sample clock signal is used to time the operation. You can also configure the device to generate data at a configurable delay past each rising edge of the Sample clock.

Note  Delay from Sample Clock Rising Edge has more jitter than the rising or falling edge values.

Certain devices have sample clock frequency limitations when a custom delay is used. Refer to the device documentation for more information about these limitations.

To configure a delay on NI 656X devices,you must delay all channels on the device. NI-HSDIO returns an error if you apply a delay to only a partial channel list.

Sample Clock Rising Edge (18)

The device samples or generates data on the rising edge of the Sample clock.

Sample Clock Falling Edge (19)

The device samples or generates data on the falling edge of the Sample clock.

Delay from Sample Clock Rising Edge (20)

The device samples or generates data with a delay from the rising edge of the Sample clock.

Specify the delay using the delay parameter of the niHSDIO Configure Data Position Delay VI.

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error in (no error) describes error conditions that occur before this node runs. This input provides standard error in functionality.

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status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.

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code is the error or warning code. The default is 0. If status is TRUE, code is a negative error code. If status is FALSE, code is 0 or a warning code.

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source identifies where an error occurred. The source string includes the name of the VI that produced the error, what inputs are in error, and how to eliminate the error.

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instrument handle out passes a reference to your instrument session to the next VI. instrument handle is obtained from the niHSDIO Init Acquisition Session VI or the niHSDIO Init Generation Session VI.

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error out contains error information. This output provides standard error out functionality.

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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.

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code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.

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source identifies where and why an error occurred. The source string includes the name of the VI that produced the error, what inputs are in error, and how to eliminate the error.

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