.. zephyr:code-sample:: eeprom :name: EEPROM :relevant-api: eeprom_interface Store a boot count value in EEPROM. Overview ******** This sample demonstrates the :ref:`EEPROM driver API ` in a simple boot counter application. Building and Running ******************** In case the target board has defined an EEPROM with alias ``eeprom-0`` the sample can be built without further ado. This applies for example to the :ref:`native_sim` board: .. zephyr-app-commands:: :zephyr-app: samples/drivers/eeprom :host-os: unix :board: native_sim :goals: run :compact: Otherwise either a board specific overlay needs to be defined, or a shield must be activated. Any board with Arduino headers can for example build the sample as follows: .. zephyr-app-commands:: :zephyr-app: samples/drivers/eeprom :board: nrf52840dk_nrf52840 :goals: build :shield: x_nucleo_eeprma2 :compact: For :ref:`gd32f450i_eval` board. First bridge the JP5 to USART with the jumper cap, Then the sample can be built and executed for the as follows: .. zephyr-app-commands:: :zephyr-app: samples/drivers/eeprom :board: gd32f450i_eval :goals: build flash :compact: Sample Output ============= .. code-block:: console Found EEPROM device "EEPROM_M24C02" Using eeprom with size of: 256. Device booted 7 times. Reset the MCU to see the increasing boot counter.