使用开发板工程使能sd卡组件后，掉电报错

发布于 2023-11-30 21:31:44 浏览：490 订阅该版

使用开发板工程使能sd卡组件后，下载进芯片后，复位程序正常运行，

但掉电后再复位程序卡死，然后一直复位后也没用，
这时候再下载一次程序也没用。

只能关了sd卡，然后下载才正常，神奇的是，再次开启sd卡功能下进去又没问题了，然后掉电又和上面现象一样。

编了几年程，第一次遇到这么离谱的bug，求助

```
 \ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Nov 30 2023 20:50:25
 2006 - 2022 Copyright by RT-Thread team
[D/drv.qspi] qspi init success!
[I/SFUD] Warning: Read SFDP parameter header information failed. The W25Q256 is not support JEDEC SFDP.
[I/SFUD] Find a Winbond W25Q256FV flash chip. Size is 33554432 bytes.
[I/SFUD] W25Q256 flash device is initialize success.
[D/drv.qspi] qspi init success!
[I/SFUD] Probe SPI flash W25Q256 by SPI device qspi10 success.
[I/sal.skt] Socket Abstraction Layer initialize success.
[I/at.clnt] AT client(V1.3.1) on device uart3 initialize success.
msh />
[I/at.dev.esp] esp0 device wifi is disconnect.
[I/SDIO] SD card capacity 30253056 KB.
psr: 0x21000000
r00: 0x240544dc
r01: 0xe000ed00
r02: 0x00000000
r03: 0x00000001
r04: 0xdeadbeef
r05: 0xdeadbeef
r06: 0xdeadbeef
r07: 0x24001bf0
r08: 0xdeadbeef
r09: 0xdeadbeef
r10: 0xdeadbeef
r11: 0xdeadbeef
r12: 0x00000000
 lr: 0x08076693
 pc: 0x08076464
hard fault on thread: mmcsd_de?

thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
at_clnt    9  suspend 0x000000fc 0x00000600    16%   0x00000003 OK
tshell    20  suspend 0x000000d0 0x00001000    07%   0x0000000a OK
LVGL      20  suspend 0x00000104 0x00001000    11%   0xfffffffd OK
sys work  23  suspend 0x00000088 0x00000800    06%   0x0000000a OK
mmcsd_de  22  running 0x0000026c 0x00000400    61%   0x00000010 OK
tidle0    31  ready   0x00000090 0x00000400    14%   0x00000003 OK
main      10  suspend 0x00000208 0x00000800    39%   0x00000002 OK
bus fault:
SCB_CFSR_BFSR:0x04 IMPRECISERR 
[D/drv.sdram] sdram init success, mapped at 0xC0000000, size is 33554432 bytes, data width is 16
```