void
eth_mac_irq（）
{
??/*?Service?MAC?IRQ?here?*/

??/*?Allocate?pbuf?from?pool?（avoid?using?heap?in?interrupts）?*/
??struct?pbuf*?p?=?pbuf_alloc（PBUF_RAW?eth_data_count?PBUF_POOL）;

??if（p?!=?NULL）?{
????/*?Copy?ethernet?frame?into?pbuf?*/
????pbuf_take（p?eth_data?eth_data_count）;

????/*?Put?in?a?queue?which?is?processed?in?main?loop?*/
????if（!queue_try_put（&queue?p））?{
??????/*?queue?is?full?->?packet?loss?*/
??????pbuf_free（p）;
????}
??}
}

static?err_t?
netif_output（struct?netif?*netif?struct?pbuf?*p）
{
??link_STATS_INC（link.xmit）;

??/*?Update?SNMP?stats?（only?if?you?use?SNMP）?*/
??MIB2_STATS_NETIF_ADD（netif?ifoutoctets?p->tot_len）;
??int?unicast?=?（（p->payload[0]?&?0x01）?==?0）;
??if?（unicast）?{
????MIB2_STATS_NETIF_INC（netif?ifoutucastpkts）;
??}?else?{
????MIB2_STATS_NETIF_INC（netif?ifoutnucastpkts）;
??}

??lock_interrupts（）;
??pbuf_copy_partial（p?mac_send_buffer?p->tot_len?0）;
??/*?Start?MAC?transmit?here?*/
??unlock_interrupts（）;

??return?ERR_OK;
}

static?void?
netif_status_callback（struct?netif?*netif）
{
??printf（“netif?status?changed?%s\n“?ip4addr_ntoa（netif_ip4_addr（netif）））;
}

static?err_t?
netif_init（struct?netif?*netif）
{
??netif->linkoutput?=?netif_output;
??netif->output?????=?etharp_output;
??netif->output_ip6?=?ethip6_output;
??netif->mtu????????=?ETHERNET_MTU;
??netif->flags??????=?NETIF_FLAG_BROADCAST?|?NETIF_FLAG_ETHARP?|?NETIF_FLAG_ETHERNET?|?NETIF_FLAG_IGMP?|?NETIF_FLAG_MLD6;
??MIB2_INIT_NETIF（netif?snmp_ifType_ethernet_csmacd?100000000）;

??SMEMCPY（netif->hwaddr?your_mac_address_goes_here?ETH_HWADDR_LEN）;
??netif->hwaddr_len?=?ETH_HWADDR_LEN;

??return?ERR_OK;
}

void?
main（void）
{
??struct?netif?netif;

??lwip_init（）;

??netif_add（&netif?IP4_ADDR_ANY?IP4_ADDR_ANY?IP4_ADDR_ANY?NULL?netif_init?netif_input）;
??netif.name[0]?=?‘e‘;
??netif.name[1]?=?‘0‘;
??netif_create_ip6_linklocal_address（&netif?1）;
??netif.ip6_autoconfig_enabled?=?1;
??netif_set_status_callback（&netif?netif_status_callback）;
??netif_set_default（&netif）;
??netif_set_up（&netif）;
??
??/*?Start?DHCP?and?HTTPD?*/
??dhcp_start（&netif?）;
??httpd_init（）;

??while（1）?{
????/*?Check?link?state?e.g.?via?MDIO?communication?with?PHY?*/
????if（link_state_changed（））?{
??????if（link_is_up（））?{
????????netif_set_link_up（&netif）;
??????}?else?{
????????netif_set_link_down（&netif）;
??????}
????}

????/*?Check?for?received?frames?feed?them?to?lwIP?*/
????lock_interrupts（）;
????struct?pbuf*?p?=?queue_try_get（&queue）;
????unlock_interrupts（）;

????if（p?!=?NULL）?{
??????link_STATS_INC（link.recv）;
?
??????/*?Update?SNMP?stats?（only?if?you?use?SNMP）?*/
??????MIB2_STATS_NETIF_ADD（netif?ifinoctets?p->tot_len）;
??????int?unicast?=?（（p->payload[0]?&?0x01）?==?0）;
??????if?（unicast）?{
????????MIB2_STATS_NETIF_INC（netif?ifinucastpkts）;
??????}?else?{
????????MIB2_STATS_NETIF_INC（netif?ifinnucastpkts）;
??????}

??????if（netif.input（p?&netif）?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-08-14?10:30??lwip-2.1.2\
?????文件??????????11??2020-08-14?10:30??readme.txt
?????文件??????189696??2018-11-22?19:55??lwip-2.1.2\CHANGELOG
?????文件?????????783??2018-10-24?18:32??lwip-2.1.2\CMakeLists.txt
?????文件????????1644??2017-01-12?19:17??lwip-2.1.2\COPYING
?????目錄???????????0??2018-11-22?19:57??lwip-2.1.2\doc\
?????文件????????3051??2018-10-24?18:32??lwip-2.1.2\doc\contrib.txt
?????目錄???????????0??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\
?????文件??????????23??2017-01-12?19:17??lwip-2.1.2\doc\doxygen\generate.bat
?????文件??????????36??2017-01-12?19:17??lwip-2.1.2\doc\doxygen\generate.sh
?????文件??????113082??2018-11-22?19:47??lwip-2.1.2\doc\doxygen\lwip.Doxyfile
?????文件??????113114??2018-07-03?18:30??lwip-2.1.2\doc\doxygen\lwip.Doxyfile.cmake.in
?????文件???????17480??2018-10-24?18:32??lwip-2.1.2\doc\doxygen\main_page.h
?????目錄???????????0??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\
?????目錄???????????0??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\
?????文件???????17302??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp_8c.html
?????文件????????2082??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp_8c.js
?????文件???????17472??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp_8h.html
?????文件????????2100??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp_8h.js
?????文件????????6104??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__alloc_8c.html
?????文件?????????211??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__alloc_8c.js
?????文件????????7151??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__priv_8h.html
?????文件?????????195??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__priv_8h.js
?????文件???????14384??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__proxyconnect_8c.html
?????文件?????????578??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__proxyconnect_8c.js
?????文件???????12551??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__proxyconnect_8h.html
?????文件?????????464??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__proxyconnect_8h.js
?????文件????????6772??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__tcp_8c.html
?????文件?????????112??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__tcp_8c.js
?????文件????????6449??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__tcp_8h.html
?????文件?????????112??2018-11-22?19:57??lwip-2.1.2\doc\doxygen\output\html\altcp__tcp_8h.js
............此處省略1845個文件信息