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# 1.21 OCMP Compare Mode

This example application shows how to use the OCMP peripheral to generate an active low, active high, and toggle output on compare match.

## Description

In this application, three OCMP modules are used to generate waveforms.

Active Low Output: By default output is set as high and it is set as low on the compare match

Active High Output: By default output is set as low and it is set as high on the compare match

Toggled Output: Compare match toggles the output

## 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/ocmp/ocmp_compare_mode/firmware.

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

Project Name | Description
--- | ---
pic32mz_ef_sk.X | MPLABX project for PIC32MZ Embedded Connectivity with FPU (EF) Starter Kit

## Setting Up the Hardware

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

Project Name | Description
--- | ---
pic32mz_ef_sk.X | PIC32MZ Embedded Connectivity with FPU (EF) Starter Kit

### Setting Up PIC32MZ Embedded Connectivity with FPU (EF) Starter Kit

- Connect the Debug USB port on the board to the computer using a mini USB cable

## Running the Application

1. Build and program the application project using its IDE
2. Observe active low, active high and toggle output on the oscilloscope
3. Refer the following table for pin details:

   OCMP Output | PIC32MZ Embedded Connectivity with FPU (EF) Starter Kit Pins
   --- | ---
   OC1 output | RD0 (Pin 11 of J12)
   OC2 output | RD1 (Pin 23 of J12)
   OC3 output | RD10 (Pin 37 of J12)