specialspax.blogg.se - Creating a sine wave in mplab xc8

The onboard push button (SW0) is used to switch between the Constant voltage and various waveforms. The Signal Generator example is implemented using Curiosity Nano board with PIC18F47Q10, and oscilloscope is used to monitor the generated signals.

Frequency of the signal – 100Hz (DAC register update frequency can be modified by changing timer period to change the frequency of the generated signal.)įigure 1 shows an overview of the Signal Generator Example.

The LUT is generated by considering following parameters. The digital Look Up Table (LUT) is created and fed into DAC input to generate the corresponding signal. The signals generated in this example are “Sine wave, Triangular wave, Square wave, Sawtooth wave, and constant (reference) voltage signals”. Reference Voltage and Waveform Generation Using DAC

TB3238 - 5-Bit Digital-to-Analog Converter.

This demo example discusses how DAC peripheral from PIC18F Q10 family of microcontrollers, can be used to generate reference voltage and different signals. The DAC module offers flexible input source selection, provision to route output to other peripherals such as analog comparator and Analog to Digital converter, and configurable registers set.ĭAC has a flexible option to choose both positive as well as negative reference voltage sources, depending on application requirement.

The Digital-to-Analog Converter (DAC) converts a digital value to an analog voltage. Waveform generation using DAC Introduction