pin timeout

发布于 2019-03-02 00:30:55 浏览：2212 订阅该版

经过link_up。开发板能够ping通回环。以及本身的IP地址了。但是在ping局域网中的IP地址的时候总是timeout。防火墙这些都是关闭了的。
msh />ping 192.168.1.100
lwip_socket(PF_INET, SOCK_RAW, 1) = 0
lwip_sendto(0, data=3007c0f4, short_size=40, flags=0x0 to=192.168.1.100 port=560
netconn_send: sending 40 bytes
lwip_recvfrom(0, 3007d890, 64, 0x0, ..)
lwip_recvfrom: top while sock->lastdata=00000000
lwip_recvfrom: netconn_recv err=-3, netbuf=00000000
lwip_recvfrom(0): buf == NULL, error is "Timeout."!
From 192.168.1.100 icmp_seq=0 timeout
lwip_sendto(0, data=3007c0f4, short_size=40, flags=0x0 to=192.168.1.100 port=1840
netconn_send: sending 40 bytes
lwip_recvfrom(0, 3007d890, 64, 0x0, ..)
lwip_recvfrom: top while sock->lastdata=00000000
lwip_recvfrom: netconn_recv err=-3, netbuf=00000000
lwip_recvfrom(0): buf == NULL, error is "Timeout."!
From 192.168.1.100 icmp_seq=1 timeout
lwip_sendto(0, data=3007c0f4, short_size=40, flags=0x0 to=192.168.1.100 port=1840
netconn_send: sending 40 bytes
lwip_recvfrom(0, 3007d890, 64, 0x0, ..)
lwip_recvfrom: top while sock->lastdata=00000000
lwip_recvfrom: netconn_recv err=-3, netbuf=00000000
lwip_recvfrom(0): buf == NULL, error is "Timeout."!
From 192.168.1.100 icmp_seq=2 timeout
lwip_sendto(0, data=3007c0f4, short_size=40, flags=0x0 to=192.168.1.100 port=1840
netconn_send: sending 40 bytes
lwip_recvfrom(0, 3007d890, 64, 0x0, ..)
lwip_recvfrom: top while sock->lastdata=00000000
lwip_recvfrom: netconn_recv err=-3, netbuf=00000000
lwip_recvfrom(0): buf == NULL, error is "Timeout."!
From 192.168.1.100 icmp_seq=3 timeout
lwip_close(0)

请问一下应该从哪里入手解决。如果说是设置寄存器的话。应该从哪里开始排查