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开发板可以ping通主机:- [JJ2440]# ping 10.21.15.25
- dm9000 i/o: 0x20000300, id: 0x90000a46
- MAC: 0a:00:1b:00:2c:00
- host 10.21.15.25 is alive
复制代码 但是tftp内核时:- [JJ2440]# tftp 0x30000000 zImage_2.6.30.4_W35_256MB
- dm9000 i/o: 0x20000300, id: 0x90000a46
- MAC: 0a:00:1b:00:2c:00
- TFTP from server 10.15.21.25; our IP address is 10.21.15.110; sending through ga
- teway 10.21.15.254
- Filename 'zImage_2.6.30.4_W35_256MB'.
- Load address: 0x30000000
- Loading: T checksum bad
- checksum bad
- T T T T T
复制代码 我的环境变量:- [JJ2440]# print
- bootdelay=3
- baudrate=115200
- ethaddr=0a:1b:2c:3d:4e:5f
- serverip=10.15.21.25
- netmask=255.255.255.0
- ipaddr=10.21.15.110
- gatewayip=10.21.15.254
- stdin=serial
- stdout=serial
- stderr=serial
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