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# 1.10 I2C Driver Synchronous - I2C EEPROM

This example application shows how to use the I2C driver in synchronous mode to perform operations on the EEPROM.

## Description

This example uses the I2C driver in synchronous mode to communicate with the EEPROM to perform write and read operations in RTOS environment. This application uses I2C driver to read and write data from an AT24CM02 EEPROM device.

## 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/driver/i2c/sync/i2c_eeprom/firmware.

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

Project Name | Description
--- | ---
sam_c21n_xpro_freertos.X | MPLABX project for SAMC21N Xplained Pro Evaluation Kit

## Setting Up the Hardware

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

Project Name | Description
--- | ---
sam_c21n_xpro_freertos.X | SAMC21N Xplained Pro Evaluation Kit

### Setting Up SAMC21N Xplained Pro Evaluation Kit

- To run the demo, the following additional hardware are required:
  - One EEPROM 3 Click board
  - One mikroBUS Xplained Pro boards
- Connect mikroBUS Xplained Pro board to EXT2 header
- Plug the EEPROM 3 click Board into the mikroBUS socket of the mikroBUS Xplained Pro board
- 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 EEPROM matched with the written value

Refer to the following table for LED name:

Board | LED Name
--- | ---
SAMC21N Xplained Pro Evaluation Kit | LED0