1.21 PIT Periodic Interrupt

This example application shows how to use PIT counter in interrupt mode.

Description

This example application configures the PIT Peripheral Library in interrupt mode to generate periodic ticks and LED toggles in blue color at every 1 second.

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/pit/led_toggle_interrupt/firmware.

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

Project NameDescription
sam_a5d29_curiosity.XMPLABX project for SAMA5D29 Curiosity Development Board Kit

Setting Up AT91Bootstrap Loader

To load the application binary onto the target device, we need to use at91bootstrap loader. Refer to the at91bootstrap loader documentation for details on how to configure, build and run bootstrap loader project and use it to bootstrap the application binaries.

Setting Up the Hardware

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

Project NameDescription
sam_a5d29_curiosity.XSAMA5D29 Curiosity Development Board Kit

Setting Up SAMA5D29 Curiosity Development Board

SETTING UP THE BOARD
  • Connect the Debug USB port on the board to the computer using a Type-C USB cable

Running the Application

  1. Build the application using its IDE
  2. LED toggles every 1 second
Refer to the following table for LED name:
BoardLED Name
SAMA5D29 Curiosity Development BoardRGB_LED (Blue)