User manual

Writing your own software26

3.5.17

UsbDrDaqSetSigGenBuiltIn

PICO_STATUS UsbDrDaqSetSigGenBuiltIn(

short handle,

long offsetVoltage,

unsigned long pkToPk,

short frequency,

USB_DRDAQ_WAVE waveType

)

This function sets the arbitrary waveform generator using standard waveform types.

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.

frequency: Frequency in hertz. The maximum allowed frequency is

20 kHz.

waveType: An enumerated data type that has the following values,

corresponding to standard waveforms:

USB_DRDAQ_SINE,

USB_DRDAQ_SQUARE,

USB_DRDAQ_TRIANGLE,

USB_DRDAQ_RAMP_UP,

USB_DRDAQ_RAMP_DOWN,

USB_DRDAQ_DC

Returns:

PICO_OK

PICO_NOT_FOUND

PICO_NOT_RESPONDING

PICO_INVALID_PARAMETER