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# 1.14 NVM Flash Read Write

This example application demonstrates how to use the NVM to erase and program the internal Flash memory.

## Description

This example uses the NVM peripheral library to erase a page and write an array of values to the internal Flash memory. It verifies the value written by reading the values back and comparing it to the value written.

## 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/nvm/flash_read_write/firmware.

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

Project Name | Description
--- | ---
pic32mz_dag_sk.X | MPLABX project for PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit
pic32mz_das_sk.X | MPLABX project for PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit (Crypto)

## Setting Up the Hardware

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

Project Name | Description
--- | ---
pic32mz_dag_sk.X | PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit
pic32mz_das_sk.X | PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit (Crypto)

### Setting Up PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit

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

### Setting Up PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit (Crypto)

- 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 respective IDE
2. LED indicates the success or failure:
   - LED is turned ON when the value read from the Flash matched with the written value

Following table provides the LED name:

Board | LED Name
--- | ---
PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit | LED1
PIC32MZ Embedded Graphics with Stacked DRAM (DA) Starter Kit (Crypto) | LED1