User Manual

Programming with the PicoScope 4000 Series74

dwellCount, the time, in 50 ns steps, between successive

additions of deltaPhaseIncrement to the delta phase counter.

This determines the rate at which the generator sweeps the output

frequency.

arbitraryWaveform, a pointer to a buffer that holds the

waveform pattern as a set of samples equally spaced in time.

Sample value ranges are as follows:

PicoScope 4226 and 4227:

[0, 4095]

PicoScope 4262:

[-32768, 32767]

arbitraryWaveformSize, the size of the arbitrary waveform

buffer, in samples:

PicoScope 4226 and 4227:

up to 8192

PicoScope 4262:

up to 4096

sweepType, determines whether the startDeltaPhase is swept

up to the stopDeltaPhase, or down to it, or repeatedly swept up

and down. Use one of the following values:

DOWN

UPDOWN

DOWNUP

whiteNoise, If TRUE, the signal generator produces white noise

and ignores all settings except pkToPk and offsetVoltage. If

FALSE, the generator produces the arbitrary waveform.

indexMode, specifies how the signal will be formed from the

arbitrary waveform data. Single, dual and quad index modes are

possible. Use one of these constants:

SINGLE

DUAL

QUAD

shots, see ps4000SigGenBuiltIn

sweeps, see ps4000SigGenBuiltIn

triggerType, see ps4000SigGenBuiltIn

triggerSource, see ps4000SigGenBuiltIn

extInThreshold, see ps4000SigGenBuiltIn

Returns

0: if successful.

Error code: if failed