Jump to main content

##

# 1.7 CORETIMER Periodic Interrupt

This example application shows how to use the CoreTimer to generate periodic interrupts.

## Description

This example application configures the CoreTimer Peripheral Library to generate periodic interrupts. The application registers a periodic timeout callback. It toggles an LED every time the callback is triggered.

## 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/coretimer/coretimer_periodic_timeout/firmware.

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

Project Name | Description
--- | ---
pic32mx470_curiosity.X | MPLABX project for Curiosity PIC32MX470 Development Board
pic32mx_eth_sk2.X | MPLABX project for PIC32 Ethernet Starter Kit
pic32mx_xlp_sk.X | MPLABX project for PIC32MX274 XLP Starter Kit
pic32mx_sk.X | MPLABX project for PIC32MX Starter Kit

## Setting Up the Hardware

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

Project Name | Description
--- | ---
pic32mx470_curiosity.X | Curiosity PIC32MX470 Development Board
pic32mx_eth_sk2.X | PIC32 Ethernet Starter Kit
pic32mx_xlp_sk.X | PIC32MX274 XLP Starter Kit
pic32mx_sk.X | PIC32MX Starter Kit

### Setting Up Curiosity PIC32MX470 Development Board

- Connect mini USB cable to the ‘Debug USB’ connector(J3) on the board to the computer

### Setting Up PIC32 Ethernet Starter Kit

- Connect mini USB cable to the ‘Debug USB’ connector(J7) on the board to the computer

### Setting Up PIC32MX274 XLP Starter Kit

- Connect micro USB cable to the ‘Debug USB’ connector(J9) on the board to the computer

### Setting Up PIC32MX Starter Kit

- Connect mini USB cable to the ‘Debug USB’ connector(J1) on the board to the computer

## Running the Application

1. Build and program the application project using its IDE
2. LED Blinks continuously

The following table provides the details of LED:

Board | LED Name
--- | ---
Curiosity PIC32MX470 Development Board | LED1
PIC32 Ethernet Starter Kit | LED1
PIC32MX274 XLP Starter Kit | LED1 (RED)
PIC32MX Starter Kit | LED3 (GREEN)