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EEPROM Emulator library read write

This application example demonstrates how to read and write to the Emulated EEPROM memory space using the EEPROM Emulator library.

Description

This example uses EEPROM Emulator library to read and write to the RWWEE Emulated EEPROM memory space. The application first checks if the library was initialized successfully or not. When running the application for the first time, the EEPROM Emulator memory space will be formatted by the application. The application then writes data to EEPROM memory space using the APIs provided by the EEPROM Emulator library and then reads the data back and compares it with the written data.

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/library/eeprom_emulator/eeprom_emulator_read_write/firmware

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

Project Name Description
sam_c21n_xpro.X MPLABX project for SAM C21N Xplained Pro Evaluation Kit
   

Setting up the hardware

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

Project Name Board
sam_c21n_xpro.X SAM C21N Xplained Pro Evaluation Kit
   

Setting up SAM C21N Xplained Pro Evaluation Kit

  • No additional hardware is required to run this demo
  • 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 using its IDE
  2. LED indicates success or failure:
    • The LED is turned ON when the value read from the Emulated EEPROM memory region matches with the written value

Refer to the following table for LED name:

Board LED Name
SAM C21N Xplained Pro Evaluation Kit LED0
   


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