GPIO Read

Read GPIO pin status

Add-On Required: This feature requires the Embedded Coder Support Package for STMicroelectronics STM32 Processors add-on.

Libraries:
Embedded Coder Support Package for STMicroelectronics STM32 Processors / STM32F4-Discovery

Description

Read the logical value of a digital pin of the STM32F4 –Discovery™ board.

Examples

Push Button and LED

Use the GPIO blocks in the STMicroelectronics® STM32F4-Discovery library to control the push-button and the LED's on the STMicroelectronics® STM32F4-Discovery board.

Open Model

Ports

Output

expand all

Port_1 — Output port containing the logical value
scalar

Output port containing the logical value of a digital pin.

Parameters

expand all

GPIO port — GPIO port to read the GPIO pin status
GPIOA (default) | GPIOA | GPIOB | GPIOC | GPIOD | GPIOE | GPIOF | GPIOG | GPIOH | GPIOI

Select one of GPIOA to GPIOI ports to get a GPIO pin status.

Pin number — GPIO pin to read the logical status
0 (default) | scalar

Select a GPIO pin to read the logical status.

Sample time — Time frequency at which the read the pin value
-1 (default) | scalar

Specify how often this block reads the pin value, in seconds. Enter a value greater than zero.

Extended Capabilities

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

Version History

Introduced in R2013b