2024年4月13日发(作者:)
常用 U-boot命令详解(z)
2010-09-30 15:05:52| 分类: 学习心得体会|字号 订阅
U-boot发展到现在,他的命令行模式已经非常接近Linux下的shell了,在我编译的
U-boot-2009.11中的命令行模式模式下支持“Tab”键的命令补全和命令的历史记录功能。而
且如果你输入的命令的前几个字符和别的命令不重复,那么你就只需要打这几个字符即可,
比如我想看这个U-boot的版本号,命令就是“ version”,但是在所有的命令中没有其他任何
一个的命令是由“v”开头的,所以只需要输入“v”即可。
[u-boot@MINI2440]# version
U-Boot 2009.11 ( 4月 04 2010 - 12:09:25)
[u-boot@MINI2440]# v
U-Boot 2009.11 ( 4月 04 2010 - 12:09:25)
[u-boot@MINI2440]# base
Base Address: 0x00000000
[u-boot@MINI2440]# ba
Base Address: 0x00000000
由于U-boot支持的命令实在太多,一个一个细讲不现实,也没有必要。所以下面我挑
一些烧写和引导常用命令介绍一下,其他的命令大家就举一反三,或者“help”吧!
(1)获取帮助
命令:help 或 ?
功能:查看当前U-boot版本中支持的所有命令。
[u-boot@MINI2440]# help
? - alias for 'help'
askenv - get environment variables from stdin
base - print or set address offset
bdinfo - print Board Info structure
bmp - manipulate BMP image data
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
bootvx - Boot vxWorks from an ELF image
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
date - get/set/reset date & time
dcache - enable or disable data cache
dhcp - boot image via network using DHCP/TFTP protocol
echo - echo args to console
editenv - edit environment variable
eeprom - EEPROM sub-system
erase - erase FLASH memory
exit - exit script
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory (default /)
flinfo - print FLASH memory information
fsinfo - print information about filesystems
fsload - load binary file from a filesystem image
go - start application at address 'addr'
help - print online help
i2c - I2C sub-system
icache - enable or disable instruction cache
iminfo - print header information for application image
imls - list all images found in flash
imxtract- extract a part of a multi-image
itest - return true/false on integer compare
loadb - load binary file over serial line (kermit mode)
loads - load S-Record file over serial line
loadx - load binary file over serial line (xmodem mode)
loady - load binary file over serial line (ymodem mode)
loop - infinite loop on address range
ls - list files in a directory (default /)
md - memory display
mm - memory modify (auto-incrementing address)
mmc - MMC sub-system
mtest - simple RAM read/write test
mw - memory write (fill)
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