1.14 I2C EEPROM Read Write

This example application demonstrates how to use the I2C peripheral to write and read from the I2C serial EEPROM memory.

Description

This example uses the I2C peripheral library to write an array of values to the I2C Serial EEPROM and verify 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/i2c/master/i2c_eeprom/firmware.

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

Project NameDescription
pic32mx470_curiosity.XMPLABX project for Curiosity PIC32MX470 Development Board
pic32mx_xlp_sk.XMPLABX project for PIC32MX274 XLP Starter Kit

Setting Up the Hardware

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

Project NameDescription
pic32mx470_curiosity.XCuriosity PIC32MX470 Development Board
pic32mx_xlp_sk.XPIC32MX274 XLP Starter Kit

Setting Up Curiosity PIC32MX470 Development Board

  • To run the application, following additional hardware are required:
  • Connect mini USB cable to the ‘Debug USB’ connector(J3) on the board to the computer
  • Plug the EEPROM 3 Click board into the mikroBUS socket J5 of the development board
    Note: Ensure that the series resistors on the mikroBUS headers are of value 0 Ohms.

Setting Up PIC32MX274 XLP Starter Kit

  • To run the application, following additional hardware are required:
  • Connect micro USB cable to the ‘Debug USB’ connector(J7) on the board to the computer
  • Plug the EEPROM 3 Click board into the mikroBUS socket J5 of the development board

Running the Application

  • Build and program the application using its IDE -LED indicates the success or failure:
    • LED is turned ON when the value read from the EEPROM matched with the written value
    • LED is turned OFF when the value read from the EEPROM did not match with the written value
Following table provides LED names:
BoardLED Name
Curiosity PIC32MX470 Development BoardLED1
PIC32MX274 XLP Starter KitLED1 (RED)