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# 1.8 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
--- | ---
pic32mm_usb_curiosity.X | MPLABX project for PIC32MM USB Curiosity board

## Setting up the hardware

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

Project Name | Description
--- | ---
pic32mm_usb_curiosity.X | PIC32MM USB Curiosity board

### Setting up PIC32MM USB Curiosity Board

- Connect micro USB cable to the 'USB1 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
--- | ---
PIC32MM USB Curiosity board | LED1