Littlefs / FAL / SFUD / QSPI 组合报错

发布于 2021-10-14 05:25:05 浏览：1474 订阅该版

调试的时候频繁断电，导致norflash上的FAT文件系统很容易挂掉。然后我先试试littlefs

因为教程比较老，弄了好一会儿。[教程](https://www.rt-thread.org/document/site/#/rt-thread-version/rt-thread-standard/application-note/components/dfs/an0027-littlefs?id=littlefs-%e7%9a%84%e7%a7%bb%e6%a4%8d)

由于RTT对STM32H7的QSPI/OSPI驱动支持不多，我是自己改的QSPI驱动。不过跑FAT很稳定，怎么写、读都没问题。换成Littlefs + FAL就出事了。

SFUD初始化正常
```
initialize norflash_sfud_init[85] D/drv.qspi main: qspi init success!
[89] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud.c:862) The flash device manufacturer ID is 0xEF, memory type ID is 0x40, capacity ID is 0x17.
[103] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:132) Check SFDP header is OK. The reversion is V1.5, NPN is 0.
[116] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:175) Check JEDEC basic flash parameter header is OK. The table id is 0, reversion is V1.5, length is 16, parameter table pointer is 0x000080.
[136] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:203) JEDEC basic flash parameter table info:
[147] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:204) MSB-LSB  3    2    1    0
[157] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0001] 0xFF 0xF9 0x20 0xE5
[167] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0002] 0x03 0xFF 0xFF 0xFF
[177] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0003] 0x6B 0x08 0xEB 0x44
[187] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0004] 0xBB 0x42 0x3B 0x08
[197] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0005] 0xFF 0xFF 0xFF 0xFE
[207] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0006] 0x00 0x00 0xFF 0xFF
[218] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0007] 0xEB 0x40 0xFF 0xFF
[228] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0008] 0x52 0x0F 0x20 0x0C
[238] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:207) [0009] 0x00 0x00 0xD8 0x10
[248] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:215) 4 KB Erase is supported throughout the device. Command is 0x20.
[261] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:234) Write granularity is 64 bytes or larger.
[272] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:245) Target flash status register is non-volatile.
[284] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:271) 3-Byte only addressing.
[293] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:305) Capacity is 8388608 Bytes.
[303] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:312) Flash device supports 4KB block erase. Command is 0x20.
[316] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:312) Flash device supports 32KB block erase. Command is 0x52.
[329] D/SFUD main: (../rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:312) Flash device supports 64KB block erase. Command is 0xD8.

```

```

写大量数据的时候就会出现底层 state machine error的情况。
![image.png](https://oss-club.rt-thread.org/uploads/20211014/378a82eddd061ababc0ae03d00aa0b5c.png)
出错后文件大小显示为0

我的lfs配置都试了一遍，包括64~4096的读写大小等。如果我设置得大一点，通过的几率会大一些。
搞了很久都没有头绪。