PWM Output

Generate square wave on the specified output pin

• Library:

• Simulink Coder Support Package for BBC micro:bit/Basic

  Simulink Coder Support Package for STMicroelectronics Nucleo Boards/ Common

  Simulink Coder Support Package for STMicroelectronics Discovery Boards/ STM32F746G-Discovery

  Simulink Coder Support Package for STMicroelectronics Discovery Boards/ STM32F769I-Discovery

• 

Description

The PWM Output block outputs the pulse width modulated (PWM) signal at the specified pin on the board. The block accepts duty cycle as the input. You can provide a value between 0–100 as the block input. An input value of 0 produces a 0% duty cycle and an input value of 100 produces a 100% duty cycle.

Ports

Input

Port_1 — Duty cycle value

scalar

The range of valid input values is 0–100. The input controls the duty cycle (width of the square wave) of the square waveform.

An input value of 0 produces a 0% duty cycle and an input value of 100 produces a 100% duty cycle. Any out-of-range values, such as 500 or -500, at the block input port has the same effect as the maximum or minimum input values.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32

Parameters

Pin — Pin at which the block generates the PWM signal

To view the pin mapping on the board, click View pin map.

Make sure to assign different pin numbers to the different blocks of your model.

Initial frequency (Hz) — Initial frequency of the PWM waveform

2000 (default)

Specify the initial frequency of the PWM waveform.

Initial duty cycle (0 - 100) — Initial width of the square wave on PWM pin

50 (default) | integer between 0 and 100

Specify the initial duty cycle between 0–100.