Measurement-computing ADLIB WIN Manuel d'utilisateur télécharger pdf (Page 92)

Chapter 23 Burst Modes

22-2

22.2 AL_SetBurstLength

Prototype C\C++

ERRNUM AL_SetBurstLength(LHLD lhld, long lBurstSamples);

Visual Basic for Windows

Function AL_SetBurstLength(ByVal lhld As Long,

ByVal lBurstSamples As Long) As Long

LHLD lhld handle of the LDSD

long lBurstSamples specifies the number of burst samples

The AL_SetBurstLength function sets the number of samples obtained during a burst in the LDSD. This

function is made available for hardware devices that provide burst length mechanism. When the hardware

device starts a burst, it provides (n) more samples, and then stops. The Burst samples specify the number of

data samples to be obtained after a valid hardware burst trigger.

Parameter Description

lhld Identifies the instance of the logical device subsystem.

lBurstSamples Sets the number of samples to be obtained after a Burst has been received. The

available range is device independent and is verified by ADLIB against the

min./max. burst length specified in the device's capabilities file.

Returns:

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

call.

Related Functions:

AL_SetBurstMode

AL_SetBurstRate

AL_GetBurstStruct

Supported Logical Device Subsystems:

Pci55xx Series: ADC0, Options: valid values are from 1 to 65535 where the actual Burst Length is set to

(65536 - lBurstSamples).

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Measurement-computing ADLIB WIN Manuel d'utilisateur Page 92