.. zephyr:code-sample:: jesd216
:name: JESD216 flash
:relevant-api: flash_interface
Use the JESD216 flash API to extract information from a compatible serial memory device.
Overview
********
This sample demonstrates how to use the JESD216 flash API to extract
information from a compatible serial device, and serves as utility to
generate ``jedec,spi-nor`` devicetree property values for the device.
Building and Running
********************
The application will build only for a target that has a devicetree entry
with ``jedec,spi-nor`` as a compatible, and for which the driver
supports :kconfig:option:`CONFIG_FLASH_JESD216_API`.
.. zephyr-app-commands::
:zephyr-app: samples/drivers/jesd216
:board: sltb004a
:goals: build flash
:compact:
Sample Output
=============
.. code-block:: console
MX25R8035F: SFDP v 1.6 AP ff with 3 PH
PH0: ff00 rev 1.6: 16 DW @ 30
Summary of BFP content:
DTR Clocking not supported
Addressing: 3-Byte only
4-KiBy erase: uniform
Support QSPI XIP
Support 1-1-1
Support 1-1-2: instr 3Bh, 0 mode clocks, 8 waits
Support 1-1-4: instr 6Bh, 0 mode clocks, 8 waits
Support 1-2-2: instr BBh, 0 mode clocks, 4 waits
Support 1-4-4: instr EBh, 2 mode clocks, 4 waits
Flash density: 1048576 bytes
ET1: instr 20h for 4096 By; typ 48 ms, max 384 ms
ET2: instr 52h for 32768 By; typ 240 ms, max 1920 ms
ET3: instr D8h for 65536 By; typ 480 ms, max 3840 ms
Chip erase: typ 6144 ms, max 36864 ms
Byte program: type 32 + 1 * B us, max 192 + 6 * B us
Page program: typ 896 us, max 5376 us
Page size: 256 By
Suspend: B0h ; Resume: 30h
DPD: Enter B9h, exit ABh ; delay 40000 ns ; poll 0x3d
size = <8388608>;
sfdp-bfp = [
e5 20 f1 ff ff ff 7f 00 44 eb 08 6b 08 3b 04 bb
ee ff ff ff ff ff 00 ff ff ff 00 ff 0c 20 0f 52
10 d8 00 ff 23 72 f5 00 82 ed 04 b7 44 83 38 44
30 b0 30 b0 f7 c4 d5 5c 00 be 29 ff f0 d0 ff ff
];
PH1: ffc2 rev 1.0: 4 DW @ 110
sfdp-ffc2 = [
00 36 50 16 9d f9 c0 64 fe cf ff ff ff ff ff ff
];
PH2: ff84 rev 1.0: 2 DW @ c0
sfdp-ff84 = [
00 00 f0 ff ff ff ff ff
];
jedec-id = [c2 28 14];
e9fef2a29b