[问答]

stm32f7+rt-thread移植lwip 的问题

2798

问答对人有帮助，内容完整，我也想知道答案 0 各位网友你们好，用STM32f7搭载了rt-thread操作系统，移植lwip1.4.1版本的，网卡用的是Lan8720, 网卡可以初始化程序，但是dhcp一直失败，打印信息如下，请问这个是什么问题呢？？？ netif->output()dhcp_discover: deleting()ing dhcp_discover: SELECTING dhcp_discover(): set request timeout 4000 msecs dhcp_fine_tmr(): request timeout dhcp_timeout() dhcp_timeout(): restarting discovery dhcp_discover() transaction id xid(718021cb) dhcp_discover: making request dhcp_discover: realloc()ing dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, DHCP_SERVER_PORT) udp_send: added header in given pbuf 20033584 udp_send: sending datagram of length 316 udp_send: UDP packet length 316 udp_send: UDP checksum 0x0000 udp_send: ip_output_if (,,,,IP_PROTO_UDP,) ip_output_if: hg0 IP header: +-------------------------------+ \| 4 \| 5 \| 0x00 \| 336 \| (v, hl, tos, len) +-------------------------------+ \| 3 \|000\| 0 \| (id, flags, offset) +-------------------------------+ \| 255 \| 17 \| 0x0000 \| (ttl, proto, chksum) +-------------------------------+ \| 0 \| 0 \| 0 \| 0 \| (src) +-------------------------------+ \| 255 \| 255 \| 255 \| 255 \| (dest) +-------------------------------+ netif->output()dhcp_discover: deleting()ing dhcp_discover: SELECTING dhcp_discover(): set request timeout 8000 msecs dhcp_fine_tmr(): request timeout dhcp_timeout() dhcp_timeout(): restarting discovery dhcp_discover() transaction id xid(718021cb) dhcp_discover: making request dhcp_discover: realloc()ing dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, DHCP_SERVER_PORT) udp_send: added header in given pbuf 20033584 udp_send: sending datagram of length 316 udp_send: UDP packet length 316 udp_send: UDP checksum 0x0000 udp_send: ip_output_if (,,,,IP_PROTO_UDP,) ip_output_if: hg0 IP header: +-------------------------------+ \| 4 \| 5 \| 0x00 \| 336 \| (v, hl, tos, len) +-------------------------------+ \| 4 \|000\| 0 \| (id, flags, offset) +-------------------------------+ \| 255 \| 17 \| 0x0000 \| (ttl, proto, chksum) +-------------------------------+ \| 0 \| 0 \| 0 \| 0 \| (src) +-------------------------------+ \| 255 \| 255 \| 255 \| 255 \| (dest) +-------------------------------+ netif->output()dhcp_discover: deleting()ing dhcp_discover: SELECTING dhcp_discover(): set request timeout 16000 msecs dhcp_fine_tmr(): request timeout dhcp_timeout() dhcp_timeout(): restarting discovery dhcp_discover() transaction id xid(718021cb) dhcp_discover: making request dhcp_discover: realloc()ing dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, DHCP_SERVER_PORT) udp_send: added header in given pbuf 20033584 udp_send: sending datagram of length 316 udp_send: UDP packet length 316 udp_send: UDP checksum 0x0000 udp_send: ip_output_if (,,,,IP_PROTO_UDP,) ip_output_if: hg0 IP header: 0
2020-11-3 17:02:31　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × richthoffen 该类别下有 182 个回答。邀请回答 7vyydyfwef 该类别下有 57 个回答。邀请回答我是卖报的小男孩该类别下有 32 个回答，其中被选为最佳答案 1 次。邀请回答 chenbingjy 该类别下有 31 个回答。邀请回答谦谦三君子该类别下有 27 个回答。邀请回答短短该类别下有 25 个回答。邀请回答 YY599566 该类别下有 22 个回答。邀请回答 dingyang598 该类别下有 22 个回答，其中被选为最佳答案 1 次。邀请回答 nvuuweew 该类别下有 22 个回答。邀请回答 h1654155957.9572 该类别下有 19 个回答。邀请回答 hapyy 该类别下有 19 个回答。邀请回答 60user16 该类别下有 19 个回答。邀请回答 HEHELA 该类别下有 18 个回答。邀请回答 DerSohn 该类别下有 18 个回答。邀请回答 huhu12 该类别下有 18 个回答。邀请回答 dull20112011 该类别下有 15 个回答。邀请回答天地直方该类别下有 15 个回答。邀请回答 csz9981 该类别下有 15 个回答。邀请回答陈军该类别下有 15 个回答。邀请回答 sfafa 该类别下有 14 个回答。邀请回答举报 pjf123 相关推荐 • RT_Thread加LWIP PING不通 3257 • STM32F429是怎样移植TouchGFX到RT-Thread系统上的 1954 • 怎样去移植基于STM32F767的RT-Thread操作系统呢 2166 • STM32F0是如何移植RT_Thread_Nano包的 2455 • 从μCOS-Ⅱ到RT-Threadの移植方法是什么 1641 • 如何对基于正点原子精英版stm32f103zet6进行rt_thread进行移植？ 1583 • 如何基于CubeMX移植RT-Thread Nano？ 2718 • 如何在RT-Thread Studio移植LAN8720A驱动的基础上打开lwIP和SA呢 1859 • 基于STM32F103C8T6的RT-Thread操作系统该如何去移植呢 2480 • 如何移植RT-Thread？ 1712