FAL外部FLASH使用注意事项

发布于 2021-11-24 21:49:05 浏览：1756 订阅该版

[链接](http://packages.rt-thread.org/detail.html?package=fal)

看上面说明： 外部的flash 名字是norflash0  怎么能实现这个呢？在哪里体现呢？
分区表中的名字如何 和 块设备名字 关联起来呢？
```
[D/FAL] (fal_flash_init:61) Flash device |                 GD25Q16B | addr: 0x00000000 | len: 0x00800000 | blk_size: 0x00001000 |initialized finish.
[D/FAL] (fal_partition_init:272) Warning: Do NOT found the flash device(norflash0).
[I/FAL] ==================== FAL partition table ====================
[I/FAL] | name  | flash_dev |   offset   |    length  |
[I/FAL] -------------------------------------------------------------
[I/FAL] | param | norflash0 | 0x00000000 | 0x00200000 |
[I/FAL] =============================================================
[I/FAL] RT-Thread Flash Abstraction Layer (V0.5.0) initialize success.
```
flash device 改成GD25Q16B,就正常了。在想教程里为什么是norflash0?
```
[D/FAL] (fal_flash_init:61) Flash device |                 GD25Q16B | addr: 0x00000000 | len: 0x00200000 | blk_size: 0x00000100 |initialized finish.
[32;22m[I/FAL] ==================== FAL partition table ====================[0m
[32;22m[I/FAL] | name  | flash_dev |   offset   |    length  |[0m
[32;22m[I/FAL] -------------------------------------------------------------[0m
[32;22m[I/FAL] | param | GD25Q16B  | 0x00000000 | 0x00200000 |[0m
[32;22m[I/FAL] =============================================================[0m
[32;22m[I/FAL] RT-Thread Flash Abstraction Layer (V0.5.0) initialize success.[0m
[I/STORAGE] Flash device : GD25Q16B   Flash size : 2048K   Partition : param   Partition size: 2048K
```
```c
fal_init(); //先初始化。
msh >fal probe GD25Q16B
```

启用 FAL 针对 SFUD 的移植文件（默认关闭）；
应输入调用 rt_sfud_flash_probe 函数时传入的 FLASH 设备名称（也可以通过 list_device 命令查看 Block Device 的名字获取）。
该名称与分区表中的 Flash 名称对应，只有正确设置设备名字，才能完成对 FLASH 的读写操作。

2 个回答

sync 2021-11-25

这家伙很懒，什么也没写！

小住住 2021-11-25

这家伙很懒，什么也没写！

sync 2021-11-26

这家伙很懒，什么也没写！

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追加回复

小住住 认证专家 2021-11-25

这家伙很懒，什么也没写！

```
 \ | /
- RT -     Thread Operating System
 / | \     3.1.1 build Nov  7 2021
 2006 - 2018 Copyright by rt-thread team
lwIP-2.0.2 initialized!
[SFUD] Find a Winbond flash chip. Size is 16777216 bytes.
[SFUD] w25qxx flash device is initialize success.

[21:41:16.888]收←◆codec initialization done!
PersimUI M3 SDK Version 1.5.0_1212 build a266716, Feb 22 2021
[32m[I/SAL_SOC] Socket Abstraction Layer initialize success.[0m
[D/FAL] (fal_flash_init:63) Flash device |                norflash0 | addr: 0x00000000 | len: 0x01000000 | blk_size: 0x00001000 |initialized finish.
[D/FAL] (fal_partition_init:187) Find the partition table on 'norflash0' offset @0x0003f1c0.
[32;22m[I/FAL] ==================== FAL partition table ====================[0m
[32;22m[I/FAL] | name     | flash_dev |   offset   |    length  |[0m
[32;22m[I/FAL] -------------------------------------------------------------[0m
[32;22m[I/FAL] | bl       | norflash0 | 0x00000000 | 0x00050000 |[0m
[32;22m[I/FAL] | env      | norflash0 | 0x00050000 | 0x00008000 |[0m
[32;22m[I/FAL] | app      | norflash0 | 0x00058000 | 0x00280000 |[0m
[32;22m[I/FAL] | download | norflash0 | 0x002d8000 | 0x00280000 |[0m
[32;22m[I/FAL] | safe     | norflash0 | 0x00558000 | 0x00100000 |[0m
[32;22m[I/FAL] | sy       | norflash0 | 0x00658000 | 0x00080000 |[0m
[32;22m[I/FAL] | fs       | norflash0 | 0x006d8000 | 0x00920000 |[0m
[32;22m[I/FAL] | mnt      | norflash0 | 0x00ff8000 | 0x00008000 |[0m
[32;22m[I/FAL] =============================================================[0m
[32;22m[I/FAL] RT-Thread Flash Abstraction Layer (V0.4.99) initialize success.[0m
[36;22m[I/OTA] RT-Thread OTA package(V0.2.2) initialize success.[0m
[32;22m[I/FAL] The FAL mtd device (safe) created successfully[0m
```
```
[21:48:17.282]收←◆llist_device
device         type         ref count
------ -------------------- ----------
MQTT0  Pipe                 2       
uart0  Character Device     1       
w0     Network Interface    0       
wlan0  Network Interface    1       
wlan1  Network Interface    0       
sd0    Block Device         1       
lcd    Graphic Device       2       
mnt    MTD Device           1       
sy     MTD Device           1       
fs     MTD Device           1       
safe   MTD Device           1       
rtc    RTC                  0       
wdog   Miscellaneous Device 1       
gpio   Miscellaneous Device 0       
sound0 Sound Device         1       
winusb Miscellaneous Device 1       
usbd   USB Slave Device     0       
tp     I2C Bus              4       
w25qxx Block Device         0       
spi10  SPI Device           0       
spi1   SPI Bus              0       
spi00  SPI Device           0       
spi0   SPI Bus              0       
uart2  Character Device     2     
```
发现柿饼派上是norflash0。