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我是740n V5的路由器，闪存是2m，内存我换了32m，可以正常使用。我用ttl进入到uboot以后，无法使用printenv等教程上说的那些命令，通过"help"命令，提示需要使用tftp -get，flash -erase，flash -write命令，我换了新8m闪存之后，想在新闪存里面写入uboot。头两个命令可以执行，write命令就是无法执行，总是提示闪存只有2m，提示命令有误，这到底是什么原因呢？是不是不同的uboot下面对应的命令名称是不同的？我输入的命令有误？
我输入的命令是：
1、# tftp -get 192.168.1.100 uboot.bin 80001000
Download file uboot.bin(size=0x20000) from tftp server(192.168.1.100) to local m
emory 0x80001000
2、# flash -erase off 0x20000
=====>erase sector 0x00000000
=====>erase sector 0x00010000
=====>erase sector 0x00020000
输入“# flash -erase 0x00000000（或0x9f000000） 0x20000 ”命令无法运行
3、# flash -write 0x00000000 0x20000 0x80001000
Invalid offset and length, Max total falsh is 2048(K)
Usage error, please try flash -help
# flash -write 0x9f000000 0x20000 0x80001000
Invalid offset and length, Max total falsh is 2048(K)
Usage error, please try flash -help
# flash -write off 0x80001000 0x20000 0x9f000000
Invalid offset and length, Max total falsh is 2048(K)
Usage error, please try flash -help“write”这个命令我反复试验了都不行！
uboot的命令提示如下：
# flash
# flash -layout
# flash -erase off len
# flash -read off len buffer
# flash -write off len buffer
#
# -layout Show falsh layout.
# -erase Erase specify falsh segment.
# -read Read specify flash segment to buffer.
# -write write specify flash segment from buffer.
#
# off Offset of flash.
# len Length of specify flash segment.
# buffer Buffer write from or read to.
# printenv
Unknown cmd 'printenv', please try 'help'
# tftp 0x80000000 mw150.bin
# tftp -get svrIpAddr fileName fileBufAddr [fileSize]
# tftp -put svrIpAddr fileName fileBufAddr fileSize
#
# -get Download files from tftp server.
# -put Upload files to tftp server.
#
# svrIpAdd Ip address of tftp server.
# fileName File name that wille send to or get from tftp server.
# fileBufAddr File buffer.
# fileSize Size of file will be send to tftpserver.
#
# Example:
# tftp -get 192.168.1.100 wr740nv5-cn.bin 80001000 ....
# Download file wr740nv5-cn.bin from tftp server(192.168.1.100) to
# local memory address 0x80001000.
#
# tftp -put 192.168.1.100 profile.bin 00C50000 1000 ....
# Send file profile.bin from local memory address 0x00C50000 to
# tftp server(192.168.1.100)
认为：我感觉命令“# tftp -get svrIpAddr fileName fileBufAddr [fileSize]
# tftp -put svrIpAddr fileName fileBufAddr fileSize”中的“fileBufAddr fileSize”和命令“# flash -erase off len
# flash -read off len buffer
# flash -write off len buffer”中的“off len buffer”是不一样的！fileBufAddr≠buffer，fileSize≠len。只是不知道有什么不同？ |
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发表于 2014-1-3 17:52
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