User Manual

Programming with the PicoScope 4000 Series56

Applicability

Streaming mode only

Arguments

handle, the handle of the required device.

sampleInterval, a pointer to the requested time interval

between data points on entry and the actual time interval assigned

on exit.

sampleIntervalTimeUnits, the unit of time that the

sampleInterval is set to. Use one of these values: -

PS4000_FS

PS4000_PS

PS4000_NS

PS4000_US

PS4000_MS

PS4000_S

maxPreTriggerSamples, the maximum number of raw samples

before a trigger condition for each enabled channel. If no trigger

condition is set this argument is ignored.

maxPostTriggerSamples, the maximum number of raw samples

after a trigger condition for each enabled channel. If no trigger

condition is set this argument states the maximum number of

samples to be stored.

autoStop, a flag to specify if the streaming should stop when all

of maxSamples have been taken.

downSampleRatio, the number of raw values to each aggregated

value.

overviewBufferSize, the size of the overview buffers. These are

temporary buffers used for storing the data before returning it to the

application. The size is the same as the bufferLth value passed

to ps4000SetDataBuffer.

Returns

PICO_OK

PICO_INVALID_HANDLE

PICO_USER_CALLBACK

PICO_NULL_PARAMETER

PICO_INVALID_PARAMETER

PICO_STREAMING_FAILED

PICO_NOT_RESPONDING

PICO_TRIGGER_ERROR

PICO_INVALID_SAMPLE_INTERVAL

PICO_INVALID_BUFFER