1.9 I2C EEPROM AT24 Driver - EEPROM Read Write
This example application shows how to use the AT24 driver to perform read and write operations on AT24 series of EEPROM.
Description
This example uses the AT24 driver to communicate with I2C based External AT24CM0 series EEPROMs to perform write and read operations in Bare-Metal/ RTOS environment.
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_eeprom/at24/at24_eeprom_read_write/firmware.
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| sam_9x60_curiosity.X | MPLABX project for SAM9X60-Curiosity board |
| sam_9x60_curiosity_freertos.X | MPLABX project for SAM9X60-Curiosity board |
Setting Up AT91Bootstrap loader
To load the application binary onto the target device, we need to use at91bootstrap loader. Refer to the at91bootstrap loader documentation for details on how to use it to bootstrap the application binaries.
Setting Up the Hardware
The following table shows the target hardware for the application projects.
| Project Name | Description |
|---|---|
| sam_9x60_curiosity.X sam_9x60_curiosity_freertos.X | SAM9X60-Curiosity board |
Setting Up SAM9X60-Curiosity Board
- Insert EEPROM 3 Click board into MIKROBUS Connector J8
- Connect the USB port J1 on board to the computer using a micro USB cable (to power the board)
- Connect the JTAG J12 on board to the computer using a JTAG based debugger
Running the Application
- Build and program the application using its IDE
- LED is turned ON when the data read from EEPROM matches with the written data
| Board | LED Name |
|---|---|
| SAM9X60-Curiosity board | RGB_LED (Green) |