DENX U-Boot及Linux使用手册

mw      - memory write (fill)

nm      - memory modify (constant address)

printenv- print environment variables

protect - enable or disable FLASH write protection

rarpboot- boot image via network using RARP/TFTP protocol

reset   - Perform RESET of the CPU

run     - run commands in an environment variable

saveenv - save environment variables to persistent storage

setenv  - set environment variables

sleep   - delay execution for some time

tftpboot- boot image via network using TFTP protocol

               and env variables ipaddr and serverip

version - print monitor version

?       - alias for 'help'

=>

使用help <command>你可以得到更多的命令信息：

=> help tftpboot

tftpboot [loadAddress] [bootfilename]

 => help setenv printenv

setenv name value ...

    - set environment variable 'name' to 'value ...'

setenv name

    - delete environment variable 'name'

 printenv

    - print values of all environment variables

printenv name ...

    - print value of environment variable 'name'

 =>

大多数命令可以缩写，只要字符串的内容仍然可以被确定：

=> help fli tftp

flinfo

    - print information for all FLASH memory banks