zephyr

History

Francois Ramu e216dcfc3d samples: drivers: quadspi flash of the stm32 boards This enables the samples/drivers/spi_flash on quad-spi flash to run on any stm32 target with external NOR quad flash. The SPI_FLASH_MULTI_SECTOR_TEST test case is possible with quadspi too. Signed-off-by: Francois Ramu <francois.ramu@st.com>		2023-06-23 10:51:06 +00:00
..
boards	boards: arm: stm32h7b3 disco kit has external octo NOR flash controller	2023-05-10 19:13:45 +02:00
src	samples: drivers: quadspi flash of the stm32 boards	2023-06-23 10:51:06 +00:00
CMakeLists.txt	cmake: increase minimal required version to 3.20.0	2021-08-20 09:47:34 +02:00
README.rst	samples: spi_flash: add README	2020-08-27 12:39:43 -04:00
prj.conf	…
sample.yaml	samples, tests: convert string-based twister lists to YAML lists	2023-05-10 09:52:37 +02:00

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!