zephyr

History

Rob Cornall e40a11ec32 samples: drivers: spi_flash: Add MAX32655 support Enable spi_flash sample for MAX32655FTHR and MAX32655EVKIT which have an external Winbond W25Q128jv external flash. Signed-off-by: Tahsin Mutlugun <Tahsin.Mutlugun@analog.com> Signed-off-by: Rob Cornall <Rob.Cornall@analog.com> Signed-off-by: Yasin Ustuner <Yasin.Ustuner@analog.com>		2025-02-12 02:27:12 +01:00
..
boards	samples: drivers: spi_flash: Add MAX32655 support	2025-02-12 02:27:12 +01:00
src
CMakeLists.txt
prj.conf	samples: drivers: spi_flash: Remove unnecessary Kconfig option changes	2024-12-09 15:10:47 +01:00
README.rst
sample.yaml	samples, tests: remove usage of space-separated lists	2024-12-04 14:14:53 -05:00

README.rst

.. zephyr:code-sample:: spi-nor
   :name: JEDEC SPI-NOR flash
   :relevant-api: flash_interface

   Use the flash API to interact with an SPI NOR serial flash memory device.

Overview
********

This sample demonstrates using the :ref:`flash API <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 devicetree node with one of the
following bindings as a compatible:

* :dtcompatible:`jedec,spi-nor`,
* :dtcompatible:`st,stm32-qspi-nor`,
* :dtcompatible:`st,stm32-ospi-nor`,
* :dtcompatible:`nordic,qspi-nor`.

.. 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!