zephyr

History

Francois Ramu 9a29f182c3 samples: drivers: spi_flash rename definitions This commits prefixes all the definitions with 'SPI_' to be used by the sample application. This will avoid compilation conflict especially on FLASH_SECTOR_SIZE. Signed-off-by: Francois Ramu <francois.ramu@st.com>		2022-06-29 10:25:16 +02:00
..
boards	samples: spi_flash: add gd32f450i_eval and gd32vf103v_eval boards	2022-03-29 10:21:15 -05:00
src	samples: drivers: spi_flash rename definitions	2022-06-29 10:25:16 +02:00
CMakeLists.txt	cmake: increase minimal required version to 3.20.0	2021-08-20 09:47:34 +02:00
README.rst	…
prj.conf	…
sample.yaml	samples: drivers flash add a test case for stm32 octospi	2022-05-12 14:56:25 -05:00

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!