The latest development version of this page may be more current than this released 3.7.0 version.

JESD216 flash

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 CONFIG_FLASH_JESD216_API.

west build -b sltb004a samples/drivers/jesd216
west flash

Sample Output

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];