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Khoa Nguyen
a3868c967c
|
1 month ago | |
|---|---|---|
| .. | ||
| boards | 3 months ago | |
| src | 1 month ago | |
| CMakeLists.txt | ||
| README.rst | 1 year ago | |
| prj.conf | 7 months ago | |
| sample.yaml | 4 months ago | |
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!