User manual

Writing your own software30

3.5.21

UsbDrDaqSetPWM

PICO_STATUS UsbDrDaqSetPWM(

short handle,

USB_DRDAQ_GPIO IOChannel,

unsigned short period,

unsigned char cycle

)

This function is used to configure the general-purpose I/Os as pulse-width modulation

outputs.

Arguments:

handle: handle returned from UsbDrDaqOpenUnit or

UsbDrDaqOpenUnitProgress

IOChannel: GPIOs 1 and 2 can be used as PWM outputs.

period: The period of the waveform in microseconds.

cycle: Duty cycle as a percentage

Returns:

PICO_OK

PICO_NOT_FOUND

PICO_NOT_RESPONDING

PICO_INVALID_PARAMETER