zephyr

History

Alex Tsamakos 0b7e661a92 samples: add actinius_icarus_bee config in spi_flash and fs Add configuration for the Actinius Icarus Bee in the spi_flash and fs samples. Signed-off-by: Alex Tsamakos <alex@actinius.com>		2021-05-06 15:03:32 +02:00
..
boards	samples: add actinius_icarus_bee config in spi_flash and fs	2021-05-06 15:03:32 +02:00
src	samples/tree-wide: remove flash_write_protection_set() usage	2021-03-29 13:43:55 -04:00
CMakeLists.txt	samples: make find_package(Zephyr...) REQUIRED	2020-05-29 10:47:25 +02:00
prj.conf	samples: spi_flash: remove an unnecessary config symbol	2017-02-04 19:45:44 +00:00
README.rst	samples: spi_flash: add README	2020-08-27 12:39:43 -04:00
sample.yaml	samples: spi_flash: Add compatibility with st,stm32-qspi-nor	2021-01-15 10:29:30 -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!