{"id":27442,"date":"2025-04-19T19:41:25","date_gmt":"2025-04-19T11:41:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/27442.html"},"modified":"2025-04-19T19:41:25","modified_gmt":"2025-04-19T11:41:25","slug":"stm32w5500%e4%bb%a5%e5%a4%aa%e7%bd%91%e5%ba%94%e7%94%a8%e5%bc%80%e5%8f%91003_tcp%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%b7%bb%e5%8a%a0oled%ef%bc%88u8g2%ef%bc%89%e6%98%be%e7%a4%ba%e7%8a%b6%e6%80%81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/27442.html","title":{"rendered":"STM32+W5500+\u4ee5\u592a\u7f51\u5e94\u7528\u5f00\u53d1+003_TCP\u670d\u52a1\u5668\u6dfb\u52a0OLED\uff08u8g2\uff09\u663e\u793a\u72b6\u6001"},"content":{"rendered":"<\/p>\n<h4>STM32&#043;W5500&#043;\u4ee5\u592a\u7f51\u5e94\u7528\u5f00\u53d1&#043;003_TCP\u670d\u52a1\u5668\u6dfb\u52a0OLED&#xff08;u8g2&#xff09;\u663e\u793a\u72b6\u6001<\/h4>\n<ul>\n<li>\u5b9e\u9a8c\u6548\u679c3-TCP\u670d\u52a1\u5668&#043;OLED<\/li>\n<li>1 \u62f7\u8d1d\u663e\u793a\u9a71\u52a8\u4ee3\u7801<\/li>\n<li>\n<ul>\n<li>1.1 \u62f7\u8d1d\u6e90\u4ee3\u7801<\/li>\n<li>1.2 \u5c06\u6e90\u4ee3\u7801\u6dfb\u52a0\u5230\u5de5\u7a0b<\/li>\n<li>1.3 \u4fee\u6539\u4ee3\u7801\u4f18\u5316\u7b49\u7ea7<\/li>\n<li>1.4 \u6dfb\u52a0\u5934\u6587\u4ef6\u8def\u5f84<\/li>\n<li>1.5 \u4fee\u6539STM32CubeMX\u5de5\u7a0b<\/li>\n<\/ul>\n<\/li>\n<li>2 \u4fee\u6539\u6e90\u4ee3\u7801<\/li>\n<li>\n<ul>\n<li>2.1 \u6dfb\u52a0\u5934\u6587\u4ef6<\/li>\n<li>2.2 main\u51fd\u6570\u4fee\u6539<\/li>\n<\/ul>\n<\/li>\n<li>3 \u5b9e\u9a8c\u6d4b\u8bd5\u6548\u679c<\/li>\n<\/ul>\n<h2>\u5b9e\u9a8c\u6548\u679c3-TCP\u670d\u52a1\u5668&#043;OLED<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419114120-68038be0c97cd.png\" alt=\"\u5ba2\u6237\u7aef\u5df2\u8fde\u63a5\u7b49\u5f85\u6570\u636e\" \/><\/p>\n<h2>1 \u62f7\u8d1d\u663e\u793a\u9a71\u52a8\u4ee3\u7801<\/h2>\n<h3>1.1 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\u4fee\u6539\u4ee3\u7801\u4f18\u5316\u7b49\u7ea7<\/h3>\n<p>\u8fd9\u91cc\u6dfb\u52a0\u7684\u597d\u591a\u6587\u4ef6\u7528\u4e0d\u5230&#xff0c;\u9700\u8981\u628a\u4ee3\u7801\u4f18\u5316\u7b49\u7ea7\u8c03\u6574\u5230Level 1 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419114122-68038be21aeae.png\" alt=\"\u4fee\u6539\u4ee3\u7801\u4f18\u5316\u7b49\u7ea7\" \/><\/p>\n<h3>1.4 \u6dfb\u52a0\u5934\u6587\u4ef6\u8def\u5f84<\/h3>\n<p><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\\\\HARDWARE\\\\oled<br \/>\n<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\\\\HARDWARE\\\\U8g2csrc<\/p>\n<h3>1.5 \u4fee\u6539STM32CubeMX\u5de5\u7a0b<\/h3>\n<p>\u53ea\u9700\u8981\u6dfb\u52a03\u4e2a\u63a7\u5236\u5f15\u811a&#xff0c;SPI\u548cW5500\u662f\u5171\u7528\u7684 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419114122-68038be238d9e.png\" alt=\"\u6dfb\u52a0OLED\u63a7\u5236\u5f15\u811a\" \/><\/p>\n<h2>2 \u4fee\u6539\u6e90\u4ee3\u7801<\/h2>\n<p>\u6e90\u4ee3\u7801\u5168\u90e8\u5728main.c\u91cc\u9762\u4fee\u6539<\/p>\n<h3>2.1 \u6dfb\u52a0\u5934\u6587\u4ef6<\/h3>\n<p><span class=\"token comment\">\/* USER CODE BEGIN Includes *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;w5500_spi.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;wizchip_conf.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;socket.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;OLED.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;u8g2_app.h&#034;<\/span><\/span><br \/>\n<span class=\"token comment\">\/* USER CODE END Includes *\/<\/span><\/p>\n<h3>2.2 main\u51fd\u6570\u4fee\u6539<\/h3>\n<p>\u5c40\u90e8\u53d8\u91cf<\/p>\n<p><span class=\"token comment\">\/* USER CODE BEGIN 1 *\/<\/span><br \/>\n  <span class=\"token class-name\">u8g2_t<\/span> u8g2<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">char<\/span> draw_buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/* USER CODE END 1 *\/<\/span><\/p>\n<p>\u663e\u793a\u521d\u59cb\u5316<\/p>\n<p>  <span class=\"token comment\">\/* USER CODE BEGIN 2 *\/<\/span><br \/>\n  <span class=\"token function\">OLED_RST_Set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/OLED\u521d\u59cb\u5316<\/span><br \/>\n  <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_RST_Clr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">HAL_Delay<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_RST_Set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">OLED_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token function\">u8g2Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/U8G2\u521d\u59cb\u5316<\/span><br \/>\n  <span class=\"token function\">u8g2_FirstPage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;A simple TCP Server Application using W5500!\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">W5500Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                                     <span class=\"token comment\">\/\/W5500\u521d\u59cb\u5316<\/span><br \/>\n  <span class=\"token function\">ctlnetwork<\/span><span class=\"token punctuation\">(<\/span>CN_SET_NETINFO<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>gWIZNETINFO<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u914d\u7f6e\u7f51\u7edc\u53c2\u6570<\/span><\/p>\n<p>  wiz_PhyConf phyconf<span class=\"token punctuation\">;<\/span><br \/>\n  phyconf<span class=\"token punctuation\">.<\/span>by <span class=\"token operator\">&#061;<\/span> PHY_CONFBY_SW<span class=\"token punctuation\">;<\/span><br \/>\n  phyconf<span class=\"token punctuation\">.<\/span>duplex <span class=\"token operator\">&#061;<\/span> PHY_DUPLEX_FULL<span class=\"token punctuation\">;<\/span><br \/>\n  phyconf<span class=\"token punctuation\">.<\/span>speed <span class=\"token operator\">&#061;<\/span> PHY_SPEED_10<span class=\"token punctuation\">;<\/span><br \/>\n  phyconf<span class=\"token punctuation\">.<\/span>mode <span class=\"token operator\">&#061;<\/span> PHY_MODE_AUTONEGO<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">ctlwizchip<\/span><span class=\"token punctuation\">(<\/span>CW_SET_PHYCONF<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>phyconf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/\u914d\u7f6ePHY\u53c2\u6570<\/span><\/p>\n<p>  <span class=\"token function\">draw_waitcable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/OLED\u63d0\u793a&#xff1a;\u7b49\u5f85\u7f51\u7ebf\u8fde\u63a5<\/span><\/p>\n<p>  <span class=\"token function\">PHYStatusCheck<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                                <span class=\"token comment\">\/\/\u68c0\u67e5\u7f51\u7edc\u8fde\u63a5\u72b6\u6001<\/span><br \/>\n  <span class=\"token function\">PrintPHYConf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                                  <span class=\"token comment\">\/\/\u6253\u5370PHY\u914d\u7f6e\u4fe1\u606f<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Simple TCP Server Application\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">draw_waitclient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/OLED\u63d0\u793a&#xff1a;\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n  <span class=\"token comment\">\/* USER CODE END 2 *\/<\/span><\/p>\n<p>\u4e3b\u5faa\u73af \u6dfb\u52a0\u7684\u4ee3\u7801\u90e8\u5206\u6709\u201cOLED\u63d0\u793a&#xff1a;\u201d\u6ce8\u91ca<\/p>\n<p><span class=\"token comment\">\/* Infinite loop *\/<\/span><br \/>\n  <span class=\"token comment\">\/* USER CODE BEGIN WHILE *\/<\/span><br \/>\n  <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/* USER CODE END WHILE *\/<\/span><\/p>\n<p>    <span class=\"token comment\">\/* USER CODE BEGIN 3 *\/<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\r\\\\nInitializing server socket\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/Parameters in order socket_id, protocol TCP or UDP, Port number, Flags&#061;0<\/span><br \/>\n  <span class=\"token comment\">\/\/Return value is socket ID on success<\/span><br \/>\n  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span>Sn_MR_TCP<span class=\"token punctuation\">,<\/span>LISTEN_PORT<span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">!&#061;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u521b\u5efa\u4e00\u4e2asocket&#xff1a;Socket\u53f7&#xff0c;TCP\/UDP\u7c7b\u578b&#xff0c;\u7aef\u53e3\u53f7<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/error<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Cannot create Socket!\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/halt here<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/success<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Socket Created Successfully ! \\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token class-name\">uint8_t<\/span> socket_io_mode<span class=\"token operator\">&#061;<\/span>SOCK_IO_BLOCK<span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token function\">ctlsocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> CS_SET_IOMODE <span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>socket_io_mode<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/set blocking IO mode<\/span><\/p>\n<p>    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;IP Address is %d.%d.%d.%d\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Start listening on port %d ! \\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span>LISTEN_PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Waiting for a client connection. \\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>draw_buf<span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">snprintf<\/span><span class=\"token punctuation\">(<\/span>draw_buf<span class=\"token punctuation\">,<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#034;%d.%d.%d.%d:%d&#034;<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>LISTEN_PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">draw_server<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">,<\/span>draw_buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/OLED\u63d0\u793a&#xff1a;\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n  <span class=\"token comment\">\/\/Make it a passive socket (i.e. listen for connection)<\/span><br \/>\n  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">!&#061;<\/span>SOCK_OK<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u76d1\u542c\u7aef\u53e3<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><span class=\"token comment\">\/\/our socket id is 1 (w5500 have 8 sockets from 0-7)<\/span><br \/>\n  <span class=\"token comment\">\/\/error<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Cannot listen on port %d&#034;<\/span><span class=\"token punctuation\">,<\/span>LISTEN_PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token class-name\">uint8_t<\/span> sr<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0x00<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/socket status register<\/span><\/p>\n<p>  <span class=\"token keyword\">do<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n  sr<span class=\"token operator\">&#061;<\/span><span class=\"token function\">getSn_SR<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u83b7\u53d6Sn_SR\u5bc4\u5b58\u5668&#xff0c;\u53c2\u65700~7 <\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>sr<span class=\"token operator\">!&#061;<\/span>SOCK_ESTABLISHED <span class=\"token operator\">&amp;&amp;<\/span> sr<span class=\"token operator\">!&#061;<\/span>SOCK_CLOSED<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>sr<span class=\"token operator\">&#061;&#061;<\/span>SOCK_CLOSED<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Some error occurred on server socket. Please restart.\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>sr<span class=\"token operator\">&#061;&#061;<\/span>SOCK_ESTABLISHED<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u6210\u529f\u8fde\u63a5<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/we come here only when a client has connected.<\/span><br \/>\n  <span class=\"token comment\">\/\/Now we can read data from the socket<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;A client connected!\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Waiting for Client Data &#8230;!\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token function\">draw_conn_client<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/OLED\u63d0\u793a&#xff1a;\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n  <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">int<\/span> len<span class=\"token operator\">&#061;<\/span><span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> receive_buff<span class=\"token punctuation\">,<\/span> RECEIVE_BUFF_SIZE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4ece\u8fde\u63a5\u8bbe\u5907\u8bfb\u53d6\u6570\u636e\u5230receive_buff<\/span><\/p>\n<p>  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>len<span class=\"token operator\">&#061;&#061;<\/span>SOCKERR_SOCKSTATUS<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/client has disconnected<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Client has disconnected\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;*** SESSION OVER ***\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  receive_buff<span class=\"token punctuation\">[<\/span>len<span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token char\">&#039;\\\\0&#039;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Received %d bytes from client\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Data Received: %s&#034;<\/span><span class=\"token punctuation\">,<\/span> receive_buff<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/        memset(draw_buf,0,20);<\/span><br \/>\n<span class=\"token comment\">\/\/        snprintf(draw_buf,20,&#034;%d.%d.%d.%d:%d&#034;,gWIZNETINFO.ip[0],gWIZNETINFO.ip[1],gWIZNETINFO.ip[2],gWIZNETINFO.ip[3],LISTEN_PORT);<\/span><br \/>\n        <span class=\"token function\">draw_waitdata<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>receive_buff<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/OLED\u63d0\u793a&#xff1a;\u663e\u793a\u63a5\u6536\u6570\u636e<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">strcmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>receive_buff<span class=\"token punctuation\">,<\/span><span class=\"token string\">&#034;Who are u&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#061;&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><span class=\"token comment\">\/\/\u5224\u65ad\u63a5\u6536\u5230&#034;Who are u&#034;<\/span><br \/>\n  <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>receive_buff<span class=\"token punctuation\">,<\/span><span class=\"token string\">&#034;I am role_2099!&#034;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">15<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4fee\u6539\u5e94\u7b54\u5185\u5bb9<\/span><br \/>\n          len <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">15<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token comment\">\/\/Echo the data back encloused in a [] pair<\/span><br \/>\n  <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token string\">&#034;[&#034;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/starting sq bracket \u5411\u5ba2\u6237\u7aef\u53d1\u9001[<\/span><br \/>\n  <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span>receive_buff<span class=\"token punctuation\">,<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ the data          \u5411\u5ba2\u6237\u7aef\u53d1\u9001\u63a5\u6536\u5230\u7684\u5185\u5bb9\u6216\u8005\u7279\u5b9a\u7684\u56de\u7b54<\/span><br \/>\n  <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token string\">&#034;]&#034;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/closing sq bracket  \u5411\u5ba2\u6237\u7aef\u53d1\u9001]<\/span><\/p>\n<p>  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\r\\\\nECHO sent back to client\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/Look for quit message and quit if received<\/span><br \/>\n  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">strcmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>receive_buff<span class=\"token punctuation\">,<\/span><span class=\"token string\">&#034;QUIT&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#061;&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span><span class=\"token comment\">\/\/\u6536\u5230&#034;QUIT&#034;&#xff0c;\u7aef\u53e3\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Received QUIT command from client\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Disconnecting &#8230; \\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;*** SESSION OVER ***\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>draw_buf<span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token function\">snprintf<\/span><span class=\"token punctuation\">(<\/span>draw_buf<span class=\"token punctuation\">,<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#034;%d.%d.%d.%d:%d&#034;<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>gWIZNETINFO<span class=\"token punctuation\">.<\/span>ip<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>LISTEN_PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token function\">draw_server<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>u8g2<span class=\"token punctuation\">,<\/span>draw_buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/OLED\u63d0\u793a&#xff1a;\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n  <span class=\"token function\">disconnect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/disconnect from the clinet \u65ad\u5f00\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n  <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/come out of while loop \u9000\u51fa&#xff0c;\u56de\u5230131\u884c&#xff0c;\u91cd\u65b0\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token punctuation\">}<\/span><span class=\"token comment\">\/\/While loop (as long as client is connected)<\/span><\/p>\n<p>  <span class=\"token punctuation\">}<\/span><span class=\"token comment\">\/\/if block, client connect success<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token comment\">\/* USER CODE END 3 *\/<\/span><\/p>\n<h2>3 \u5b9e\u9a8c\u6d4b\u8bd5\u6548\u679c<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419114122-68038be25be5c.png\" alt=\"\u7b49\u5f85\u63d2\u5165\u7f51\u7ebf\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419114123-68038be346689.png\" alt=\"\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419114123-68038be3c5c81.png\" alt=\"\u5ba2\u6237\u7aef\u5df2\u8fde\u63a5\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419114124-68038be454471.png\" alt=\"\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6570\u636e\" 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