zephyr

History

Kumar Gala 9e8fb08c0f eeprom: remove defconfig/proj setting of eeprom drivers Now that eeprom drivers are enabled based on devicetree we can remove any cases of them getting enabled by proj.conf files. Signed-off-by: Kumar Gala <galak@kernel.org>		2022-08-12 11:34:16 +02:00
..
boards	eeprom: remove defconfig/proj setting of eeprom drivers	2022-08-12 11:34:16 +02:00
src	…
CMakeLists.txt	…
README.rst	…
overlay-shell.conf	…
prj.conf	…
sample.yaml	…

README.rst

.. _samples_eeprom:

EEPROM Sample
#############

Overview
********

This sample demonstrates the 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_posix` board:

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/eeprom
   :host-os: unix
   :board: native_posix
   :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.