1.10 GPIO Interrupt

This example application demonstrate how to generate GPIO interrupt on switch press and release, and indicate the switch status using the LED.

Description

This application uses the GPIO Peripheral library to generate callback on switch press and release, and drives the GPIO pin connected to the LED to indicate the switch status. The LED is turned ON when the switch is pressed and turned OFF when the switch is released.

Downloading and Building the Application

To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.

Path of the application within the repository is apps/gpio/gpio_led_on_off_interrupt/firmware.

To build the application, refer to the following table and open the project using its IDE.

Project NameDescription
pic32mz_w1_curiosity.XMPLABX project for PIC32MZ W1 Curiosity Board

Setting Up the Hardware

The following table shows the target hardware for the application projects.

Project NameDescription
pic32mz_w1_curiosity.XPIC32MZ W1 Curiosity Board

Setting Up PIC32MZ W1 Curiosity Board

  • Connect the Debug USB port on the board to the computer using a micro USB cable

Running the Application

  1. Build and program the application project using its IDE
  2. The LED is turned ON when the switch is pressed and turned OFF when the switch is released
The following table provides the Switch and the LED name:s
BoardSwitch NameLED Name
PIC32MZ W1 Curiosity BoardSW1RED LED (D202)