Measurement-computing ADLIB WIN Uživatelský manuál stáhnout pdf (Strana 73)

Chapter 20 Triggering Modes

19-5

19.4 AL_SetPostSampleCount

Prototype C\C++

ERRNUM AL_SetPostSampleCount(LHLD lhld, long lCount);

Visual Basic for Windows

Function AL_SetPostSampleCount(ByVal lhld As Long,

ByVal lCount As Long) As Long

LHLD lhld handle of the LDSD

long lCount specifies the number of sample counts

The AL_SetPostSampleCount function sets the post trigger samples in the LDSD. This function is made

available for hardware devices that provide a post trigger counting mechanism. When the hardware device

receives a trigger, it provides (n) more samples, then stops. The post trigger samples specifies the number

of data samples to be obtained after a valid hardware trigger has been received.

Parameter Description

lhld Identifies the instance of the logical device subsystem.

lCount Sets the number of samples to be obtained after a trigger has been received. The available

ranges are device dependent and are verified by ADLIB against the min/max range

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_SetTriggerMode

AL_SetTriggerSource

AL_SetTrigSourceSignal

AL_GetTriggerStruct

AL_SetTriggerOutput

AL_GetTriggerOutput

Supported Logical Device Subsystems:

Pci55xx Series: ADC0, Options: 0 to 65535 “ABOUT_TRIG” Triggermode

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Measurement-computing ADLIB WIN Uživatelský manuál Strana 73