This is the documentation for the latest (master) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

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:

west build -b qemu_x86 samples/drivers/flash_shell
west build -t run

Sample Output

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