Measurement-computing ADLIB WIN Bedienungsanleitung PDF herunterladen (Seite 143)

Chapter 41 Data Formatting Functions

28-1

28. DATA FORMATTING FUNCTIONS:

The Data Formatting functions provide conversions of RAW data into Voltage. The two functions provide

the means to convert specific range of a given buffer or the entire buffer into engineering units. The driver

uses the current configuration of a device, such as it’s gain and data offset values in the calculation.

28.1 AL_DemuxData

Prototype C\C++

(16 Bit) ERRNUM AL_DemuxData(LHLD lhld, LPBUFFSTRUCT lpbuffstruct,

float _far * DestBuffer, long lLength);

(32 Bit) ERRNUM AL_DemuxData(LHLD lhld, LPBUFFSTRUCT lpbuffstruct,

float * DestBuffer, long lLength);

Visual Basic for Windows

Not supported

LHLD lhld handle of the LDSD

LPBUFFSTRUCT lpbuffstruct input address to the ADLIB buffer

float _far * DestBuffer destination address to the user buffer

long lLength length of the destination buffer in samples

The AL_DemuxData function converts the selected ADLIB buffer pointed to by lpbuffstruct to

Engineering voltage units, placing each samples voltage into the destination buffer pointed to by

fpfDestBuffer.

Parameter Description

lhld Identifies the instance of the logical device subsystem.

lpbuffstruct points to the ADLIB buffer to demux.

fpfDestBuffer points to the destination buffer.

lLength specifies the length in samples of the destination buffer.

Returns:

On success ERRNUM is set to 1, otherwise ERRNUM contains the last error code that occurred during the

call.

Related Functions:

NONE

Supported Logical Device Subsystems:

Pci55xx Series: ADC0

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Measurement-computing ADLIB WIN Bedienungsanleitung Seite 143