Generate a Standard Waveform Using Function Waveform Generator Channels

This example shows how to use the function generator channel in a DataAcquisition to generate a sine function waveform at a frequency of 100 kHz. The signal output voltage range is specified as -5.0 to +5.0 volts.

Discover available Digilent^® devices.

dev = daqlist("digilent")

dev =

  1×4 table

    DeviceID                     Description                            Model                  DeviceInfo       
    ________    _____________________________________________    ____________________    _______________________

     "AD1"      "Digilent Inc. Analog Discovery 2 Kit Rev. C"    "Analog Discovery 2"    [1×1 daq.di.DeviceInfo]

Create a DataAcquisition object for Digilent devices.

d = daq("digilent")

d = 

DataAcquisition using Digilent Inc. hardware:

                     Running: 0
                        Rate: 10000
           NumScansAvailable: 0
            NumScansAcquired: 0
              NumScansQueued: 0
    NumScansOutputByHardware: 0
                   RateLimit: []

Add a waveform function generator channel for device AD1 with a Sine waveform type.

fgenCh = addoutput(d,"AD1",1,"Sine")

fgenCh = 

    Index     Type     Device    Channel    Measurement Type           Range                Name    
    _____    ______    ______    _______    ________________    ____________________    ____________

      1      "fgen"    "AD1"       "1"           "Sine"         "-5.0 to +5.0 Volts"    "AD1_1_fgen"

Set the channel amplitude to 5 v using the Gain property and the channel frequency to 100 kHz.

fgenCh.Gain = 5;
fgenCh.Frequency = 100e3;

Specify the output duration to run for 5 seconds and start the generation.

write(d,seconds(5))