PWM Output

Generate square wave on the specified output pin

Libraries:
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32F2xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32F3xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32F4xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32F7xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32G4xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32H7xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32L4xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32L5xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32U5xx Based Boards
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32F746G-Discovery
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32L475VG-Discovery (B-L475E-IOT01A)
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32F769I-Discovery
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32WBxx Based Boards

Description

The PWM Output block generates square waveform on the specified output pin. The block input controls the duty cycle of the square waveform. You can provide a value between 0–100 as the block input. An input value of 0 produces a 0 percent duty cycle and an input value of 100 produces a 100 percent duty cycle

Ports

Input

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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.

Parameters

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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 name to the different blocks of your model.

Apart from the pins names mentioned in the pin mapping table, there are other alternate pin names (Px_y_ALTz) that can be used to access other hardware peripheral devices connected to the same pin. To know more, refer to Usage of Alternate Pin Names.

The alternate pin names are only applicable for Simulink^® Coder™ Support Package for STMicroelectronics^® Nucleo Boards and Discovery boards.

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.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2018a