| .. _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! |
