User manual

Programming with the PicoScope 6000 Series38

Returns

PICO_OK

PICO_INVALID_HANDLE

PICO_NO_SAMPLES_AVAILABLE

PICO_DEVICE_SAMPLING

PICO_NULL_PARAMETER

PICO_SEGMENT_OUT_OF_RANGE

PICO_INVALID_PARAMETER

PICO_TOO_MANY_SAMPLES

PICO_DATA_NOT_AVAILABLE

PICO_STARTINDEX_INVALID

PICO_INVALID_SAMPLERATIO

PICO_INVALID_CALL

PICO_NOT_RESPONDING

PICO_MEMORY

PICO_RATIO_MODE_NOT_SUPPORTED

PICO_DRIVER_FUNCTION

3.9.15.1

Downsampling modes

Various methods of data reduction, or downsampling, are possible with the

PicoScope 6000 Series oscilloscopes. The downsampling is done at high speed by

dedicated hardware inside the scope, making your application faster and more

responsive than if you had to do all the data processing in software.

You specify the downsampling mode when you call one of the data collection functions

such as ps6000GetValues. The following modes are available:

PS6000_RATIO_MODE_AGGREGATE

Reduces every block of n values to just two

values: a minimum and a maximum. The

minimum and maximum values are

returned in two separate buffers.

PS6000_RATIO_MODE_AVERAGE

Reduces every block of n values to a single

value representing the average (arithmetic

mean) of all the values.

PS6000_RATIO_MODE_DECIMATE

Reduces every block of n values to just the

first value in the block, discarding all the

other values.

PS6000_RATIO_MODE_DISTRIBUTION

Not implemented.