zephyr

History

Andrei Gansari 19975af460 samples: flash_shell: unaligned and pattern write Adds unaligned and pattern write functionality. The reason this was added is chips with large pages, e.g. 256 can't be normaly writen via shell, thus the need to write a pattern with any length to a memory area. The unaligned write command allows writing a data frament in any place in memory, the data backup, protection, erasing and writing is automaticaly handled. This makes it easier to test all flash controller functionality in one command, also write any persistent data to any flash address. Signed-off-by: Andrei Gansari <andrei.gansari@nxp.com>		2020-08-05 15:30:20 -04:00
..
src	samples: flash_shell: unaligned and pattern write	2020-08-05 15:30:20 -04:00
CMakeLists.txt	samples: make find_package(Zephyr...) REQUIRED	2020-05-29 10:47:25 +02:00
Kconfig	samples: flash_shell: Enable on all platforms with a flash driver	2020-02-06 19:18:51 -05:00
prj.conf	samples: flash_shell: unaligned and pattern write	2020-08-05 15:30:20 -04:00
README.rst	samples: driver: flash_shell: Add readme	2020-05-15 17:18:56 +02:00
sample.yaml	samples: flash_shell: Enable on all platforms with a flash driver	2020-02-06 19:18:51 -05:00

README.rst

.. _samples_flash_shell:

Flash Shell Sample
##################

Overview
********
This is a simple shell module that allows arbitrary boards with flash
driver support to explore the flash device.

Building and Running
********************

This project can be built and executed on as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/flash_shell
   :host-os: unix
   :board: qemu_x86
   :goals: run
   :compact:

Sample Output
=============

.. code-block:: console

    uart:~$ flash page_count
    Flash device contains 1024 pages.
    uart:~$ flash page_erase 1023
    Erasing page 1023 (start offset 0xffc00, size 0x400)
    uart:~$ flash page_write 1023 8 17 19 28 39
    Reading back written bytes:
    11 13 1c 27
    uart:~$ flash page_write 1023 4 77 9 1 2
    Reading back written bytes:
    4d 09 01 02
    uart:~$ flash page_read 1023 4 12
    4d 09 01 02 | 11 13 1c 27
    ff ff ff ff
    uart:~$ flash page_read 1023 0 16
    ff ff ff ff | 4d 09 01 02
    11 13 1c 27 | ff ff ff ff