今天用MYS-6ULX-IOT开发板尝试TFTP，NFS 启动，设置后不能正常启动。
最后检查网络，居然ping不同，而且不能保持 ip .


Environment size: 931/131068 bytes
=> pint 192.168.1.1
Unknown command 'pint' - try 'help'
=> ping 192.168.1.1
*** ERROR: `ipaddr' not set
ping failed; host 192.168.1.1 is not alive
=> setenv ipaddr 192.168.1.177
=> saveenv
Saving Environment to NAND...
Erasing NAND...
Erasing at 0x3c00000 -- 100% complete.
Writing to NAND... OK
=> ping 192.168.1.177
*** ERROR: `ethaddr' not set
ping failed; host 192.168.1.177 is not alive
=> setenv ethaddr 4a:20:28:8a:93:40  
=> saveenv
Saving Environment to NAND...
Erasing NAND...
Erasing at 0x3c00000 -- 100% complete.
Writing to NAND... OK
=>
=>
=> ping 192.168.1.177               
Using FEC0 device

ARP Retry count exceeded; starting again
ping failed; host 192.168.1.177 is not alive
=>



有谁做好了，能分享下么？谢谢！QQ1831033907