请教 为什么我连接TTL到路由出现下面的东西就不动了 (更新问题)

nylondon

U-Boot 1.1.3 (Aug  5 2008 - 14:33:13)

Board: Ralink APSoC DRAM:  32 MB
relocate_code Pointer at: 81fa8000
flash_protect ON: from 0xBF000000 to 0xBF024A67
protect on 0
protect on 1
protect on 2
protect on 3
protect on 4
protect on 5
protect on 6
protect on 7
protect on 8
protect on 9
flash_protect ON: from 0xBF030000 to 0xBF03FFFF
protect on 10
*** Warning - bad CRC, using default environment

============================================
Ralink UBoot Version: 3.1
--------------------------------------------
ASIC 3052_MP2 (MAC to GigaMAC Mode)
DRAM COMPONENT: 128Mbits
DRAM BUS: 32BIT
Total memory: 32 MBytes
Date:Aug  5 2008  Time:14:33:13
============================================
icache: sets:256, ways:4, linesz:32 ,total:32768
dcache: sets:128, ways:4, linesz:32 ,total:16384

##### The CPU freq = 384 MHZ ####

SDRAM bus set to 32 bit
SDRAM size =32 Mbytes

Please choose the operation:
   1: Load system code to SDRAM via TFTP.
   2: Load system code then write to Flash via TFTP.
   3: Boot system code via Flash (default).
   4: Entr boot command line interface.
   9: Load Boot Loader code then write to Flash via TFTP.

You choosed 3

0
   
3: System Boot system code via Flash.
## Booting image at bf050000 ...
Bad Magic Number,27051967




原来输入线接错了
现在进入引导命令.不知道怎么传固件上去

RT3052 # ?
?       - alias for 'help'
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootm   - boot application image from memory
bootp   - boot image via network using BootP/TFTP protocol
cp      - memory copy
echo    - echo args to console
erase   - erase FLASH memory
help    - print online help
loopback   - Ralink eth loopback test !!
md      - memory display
mdio   - Ralink PHY register R/W command !!
mm      - memory modify (auto-incrementing)
mw      - memory write (fill)
nm      - memory modify (constant address)
printenv- print environment variables
protect - enable or disable FLASH write protection
run     - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv  - set environment variables
spicmd  - read/write data from/to eeprom or vtss
tftpboot- boot image via network using TFTP protocol
version - print monitor version
RT3052 #

怎么发送固件上去呢?
ping不通  本机windows7 开tftp服务器不太清楚怎么搞