1.7 SPI EEPROM AT25 Driver - EEPROM Read Write
This example application demonstrates how to use the AT25 driver to perform read and write operations on AT25 series of EEPROM.
Description
This example uses the AT25 driver to communicate with the SPI based AT25 series of external EEPROMs to perform read and write operations.
The application communicates with the EEPROM 4 click board that has AT25M02 EEPROM on it.
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/spi_eeprom/at25/at25_eeprom_read_write/firmware.
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| sam_d20_xpro.X | MPLABX project for SAM D20 Xplained Pro Evaluation Kit |
Setting Up the Hardware
The following table shows the target hardware for the application projects.
| Project Name | Description |
|---|---|
| sam_d20_xpro.X | SAM D20 Xplained Pro Evaluation Kit |
Setting Up SAM D20 Xplained Pro Evaluation Kit
- To run the demo, the following additional hardware are required:
- Install EEPROM 4 click board on the mikroBUS Xplained Pro board
- Connect the mikroBUS Xplained Pro boards on EXT2 header of the SAM D20 Xplained Pro Evaluation Kit
- Connect the Debug USB port on the board to the computer using a micro USB cable
Running the Application
- Build and program the application using its IDE.
- The LED indicates success or failure.
- The LED is turned ON when the value read from EEPROM matches with the written data
| Board | LED Name |
|---|---|
| SAM D20 Xplained Pro Evaluation Kit | LED0 |