JEDEC SPI-NOR flash¶
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 devicetree entry with
jedec,spi-nor as a compatible.
west build -b nrf52840dk_nrf52840 samples/drivers/spi_flash west flash
*** 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!