User manual

USB DrDAQ Programmer's Guide 27

3.5.18

UsbDrDaqSetSigGenArbitrary

PICO_STATUS UsbDrDaqSetSigGenArbitrary(

short handle,

long offsetVoltage,

unsigned long pkToPk,

short * arbitraryWaveform,

short arbitraryWaveformSize,

long updateRate

)

This function allows full control of the arbitrary waveform generator by allowing an

arbitrary waveform to be passed to the driver.

Arguments:

handle: handle returned from UsbDrDaqOpenUnit or

UsbDrDaqOpenUnitProgress

offsetVoltage: The offset voltage in microvolts. The offset voltage

must be in the range -1.5 V to 1.5 V.

pkToPk: The peak-to-peak voltage in microvolts. The maximum

allowed is 3 V.

arbitraryWaveform: A pointer to an array containing the

waveform. The waveform values must be in the range -1000 to 1000.

arbitraryWaveformSize: The number of points in the waveform.

updateRate: This is the rate at which the AWG steps through the

points in the waveform. This value must be in the range 1 to 2000000

points per second.

Returns:

PICO_OK

PICO_NOT_FOUND

PICO_NOT_RESPONDING

PICO_INVALID_PARAMETER