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PicoScope 4000 Series (A API) Programmer's Guide 57

Applicability

Streaming mode only

Arguments

handle, the handle of the required device.

* sampleInterval, on entry, the requested time interval between

data points on entry; on exit, the actual time interval assigned.

sampleIntervalTimeUnits, the unit of time that the

sampleInterval is set to. See ps4000aGetTriggerTimeOffset

for values.

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

downsampled value.

downSampleRatioMode, the type of data reduction to use. See

ps4000aGetValues for details.

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

ps4000aSetDataBuffer.

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

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