EMMC Filesystem

eMMC挂载过程log出现error是否正常

发布于 2025-10-19 08:15:15 浏览：139 订阅该版

处理器采用的STM32H743，rt-thread版本为4.1.1，使用sdio接口的eMMC，log信息中打印了多次send command error，但文件系统可以正常挂在，文件也可以正常创建，由于对eMMC驱动不是太了解，请熟悉的兄弟简单分析一下日志中错误的信息是什么原因导致。

```c

\ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Oct 18 2025 07:54:04
 2006 - 2022 Copyright by RT-Thread team
lwIP-2.1.2 initialized!
[I/sal.skt] Socket Abstraction Layer initialize success.
msh />[D/drv.sdio] sdio:24012828 clk:0K width:1 power:UP
[D/drv.sdio] sdio:24012828 clk:400K width:1 power:ON
[D/drv.sdio] sdio:24012828 clk:400K width:1 power:ON
[D/drv.sdio] sdio:24012828 CMD:0 ARG:0x00000000 RES:NONE rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000080 [00000000 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 clk:400K width:1 power:ON
[D/drv.sdio] sdio:24012828 CMD:8 ARG:0x000001aa RES:R7 rw:- len:0 blksize:0

[E/drv.sdio] sdio:24012828 send command error = -1
[D/drv.sdio] sdio:24012828 CMD:5 ARG:0x00000000 RES:R4 rw:- len:0 blksize:0

[E/drv.sdio] sdio:24012828 send command error = -1
[D/drv.sdio] sdio:24012828 CMD:55 ARG:0x00000000 RES:R1 rw:- len:0 blksize:0

[E/drv.sdio] sdio:24012828 send command error = -1
[D/drv.sdio] sdio:24012828 CMD:1 ARG:0x00000000 RES:R3 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000001 [00FF8080 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 clk:400K width:1 power:ON
[D/drv.sdio] sdio:24012828 clk:400K width:1 power:ON
[D/drv.sdio] sdio:24012828 CMD:0 ARG:0x00000000 RES:NONE rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000080 [00FF8080 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 clk:400K width:1 power:ON
[D/drv.sdio] sdio:24012828 CMD:1 ARG:0x40300000 RES:R3 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000001 [00FF8080 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 CMD:1 ARG:0x40300000 RES:R3 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000001 [C0FF8080 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 CMD:2 ARG:0x00000000 RES:R2 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000040 [F201FF4D 4B303038 44FF5692 9A0B5ADC]
[D/drv.sdio] sdio:24012828 CMD:3 ARG:0x00010000 RES:R1 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000040 [00000500 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 clk:400K width:1 power:ON
[D/drv.sdio] sdio:24012828 CMD:9 ARG:0x00010000 RES:R2 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000040 [D02F012A 9F5903FF F6DBFFFF 86400010]
[D/drv.sdio] sdio:24012828 CMD:7 ARG:0x00010000 RES:R1 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00000040 [00000700 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 CMD:8 ARG:0x00000000 RES:R1 rw:r len:512 blksize:512

[D/drv.sdio] sdio:24012828 sta:0x00000140 [00000900 00000000 00000000 00000000]
[I/SDIO] emmc card capacity 7864320 KB.
[D/drv.sdio] sdio:24012828 clk:52000K width:1 power:ON
[D/drv.sdio] sdio:24012828 CMD:6 ARG:0x03b70101 RES:R1 rw:- len:0 blksize:0

[D/drv.sdio] sdio:24012828 sta:0x00101040 [00000800 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 clk:52000K width:4 power:ON
[D/drv.sdio] sdio:24012828 CMD:8 ARG:0x00000000 RES:R1 rw:r len:512 blksize:512

[D/drv.sdio] sdio:24012828 sta:0x00200140 [00000900 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 CMD:17 ARG:0x00000000 RES:R1 rw:r len:512 blksize:512

[D/drv.sdio] sdio:24012828 sta:0x00000140 [00000900 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 CMD:17 ARG:0x00000000 RES:R1 rw:r len:512 blksize:512

[D/drv.sdio] sdio:24012828 sta:0x00000140 [00000900 00000000 00000000 00000000]
[D/drv.sdio] sdio:24012828 CMD:17 ARG:0x00000001 RES:R1 rw:r len:512 blksize:512

[D/drv.sdio] sdio:24012828 sta:0x00000140 [00000900 00000000 00000000 00000000]
SD mount to / success
[I/drv.emac] link up

```