User manual

Programming with the PicoScope 6000 Series88

3.10.4

LabVIEW

The SDK contains a library of VIs that can be used to control the PicoScope 6000 and

some simple examples of using these VIs in streaming mode, block mode and rapid

block mode.

The LabVIEW library (PicoScope6000.llb) can be placed in the user.lib sub-

directory to make the VIs available on the ‘User Libraries’ palette. You must also copy

ps6000.dll and ps6000wrap.dll to the folder containing your LabView project.

The library contains the following VIs:

PicoErrorHandler.vi - takes an error cluster and, if an error has occurred,

displays a message box indicating the source of the error and the status code

returned by the driver

PicoScope6000AdvancedTriggerSettings.vi - an interface for the advanced

trigger features of the oscilloscope

This VI is not required for setting up simple triggers, which are configured using

PicoScope6000Settings.vi.

For further information on these trigger settings, see descriptions of the trigger

functions:

ps6000SetTriggerChannelConditions

ps6000SetTriggerChannelDirections

ps6000SetTriggerChannelProperties

ps6000SetPulseWidthQualifier

ps6000SetTriggerDelay

PicoScope6000AWG.vi - controls the arbitrary waveform generator

Standard waveforms or an arbitrary waveform can be selected under ‘Wave Type’.

There are three settings clusters: general settings that apply to both arbitrary and

standard waveforms, settings that apply only to standard waveforms and settings

that apply only to arbitrary waveforms. It is not necessary to connect all of these

clusters if only using arbitrary waveforms or only using standard waveforms.

When selecting an arbitrary waveform, it is necessary to specify a text file

containing the waveform. This text file should have a single value on each line in

the range -1 to 1. For further information on the settings, see descriptions of

ps6000SetSigGenBuiltIn and ps6000SetSigGenArbitrary.

PicoScope6000Close.vi - closes the oscilloscope

Should be called before exiting an application.

PicoScope6000GetBlock.vi - collects a block of data from the oscilloscope

This can be called in a loop in order to continually collect blocks of data. The

oscilloscope should first be set up by using PicoScope6000Settings.vi. The VI

outputs data arrays in two clusters (max and min). If not using aggregation, ‘Min

Buffers’ is not used.