zephyr

History

Andrzej Puzdrowski c5cc990cb3 samples/tree-wide: remove flash_write_protection_set() usage This patch removes scenario which was testing deprecated API behaviors. Needed as As flash_write_protection_set() was deprecated and became no-operation. Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>		2021-03-29 13:43:55 -04:00
..
boards	…
src	samples/tree-wide: remove flash_write_protection_set() usage	2021-03-29 13:43:55 -04:00
CMakeLists.txt	…
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _spi-nor-sample:

JEDEC SPI-NOR Sample
####################

Overview
********

This sample demonstrates using the flash API on a SPI NOR serial flash
memory device.  While trivial it is an example of direct access and
allows confirmation that the flash is working and that automatic power
savings is correctly implemented.

Building and Running
********************

The application will build only for a target that has a :ref:`devicetree
<dt-guide>` entry with ``jedec,spi-nor`` as a compatible.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/spi_flash
   :board: nrf52840dk_nrf52840
   :goals: build flash
   :compact:

Sample Output
=============

.. code-block:: console

   *** Booting Zephyr OS build zephyr-v2.3.0-2142-gca01d2e1d748  ***

   JEDEC QSPI-NOR SPI flash testing
   ==========================

   Test 1: Flash erase
   Flash erase succeeded!

   Test 2: Flash write
   Attempting to write 4 bytes
   Data read matches data written. Good!