{"id":48688,"date":"2025-07-30T13:02:55","date_gmt":"2025-07-30T05:02:55","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/48688.html"},"modified":"2025-07-30T13:02:55","modified_gmt":"2025-07-30T05:02:55","slug":"stm32f4%e5%ae%9e%e7%8e%b0%e4%b8%b2%e5%8f%a3%e4%b8%8etcp%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e5%8f%8c%e5%90%91%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/48688.html","title":{"rendered":"STM32F4\u5b9e\u73b0\u4e32\u53e3\u4e0eTCP\u670d\u52a1\u5668\u7684\u53cc\u5411\u901a\u4fe1"},"content":{"rendered":"<p>  \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90&#xff0c;\u70b9\u51fb\u83b7\u53d6  <img decoding=\"async\" alt=\"menu-r.4af5f7ec.gif\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730050254-6889a77e42352.gif\" style=\"width:16px;margin-left:4px;vertical-align:text-bottom;cursor:text\" \/> <\/p>\n<p> \u7b80\u4ecb&#xff1a;\u672c\u6587\u6df1\u5165\u63a2\u8ba8\u4e86\u4e32\u53e31-232\u4e0eTCP\u670d\u52a1\u5668\u7684\u53cc\u5411\u901a\u4fe1\u5b9e\u73b0&#xff0c;\u8fd9\u5bf9\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u8005\u548c\u7269\u8054\u7f51\u5e94\u7528\u5c24\u4e3a\u91cd\u8981\u3002\u901a\u8fc7\u5206\u6790STM32F4\u5fae\u63a7\u5236\u5668\u5e73\u53f0\u7684\u914d\u7f6e&#xff0c;\u5305\u62ecUART1\u548cTCP\u8fde\u63a5&#xff0c;\u4ee5\u53ca\u4e32\u53e3\u4e0eTCP\u4e4b\u95f4\u7684\u6865\u63a5&#xff0c;\u5e76\u4e14\u8ba8\u8bba\u4e86\u6570\u636e\u540c\u6b65\u3001\u9519\u8bef\u5904\u7406\u548c\u7535\u5e73\u8f6c\u6362\u7b49\u5173\u952e\u6b65\u9aa4\u3002\u6587\u4e2d\u63d0\u53ca\u7684\u201dbroken8nf_stm32f4\u201d\u53ef\u80fd\u662f\u4e00\u4e2a\u7279\u5b9a\u7684\u9879\u76ee\u540d&#xff0c;\u63d0\u4f9b\u4e86\u5b9e\u9645\u6848\u4f8b\u548c\u793a\u4f8b\u4ee3\u7801&#xff0c;\u6709\u52a9\u4e8e\u7406\u89e3\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u5b9e\u65bd\u6b64\u7c7b\u901a\u4fe1\u7684\u65b9\u6cd5\u3002  <img decoding=\"async\" alt=\"27 \u4e32\u53e31-232\u4e0eTCP\u670d\u52a1\u5668\u53cc\u5411\u901a\u4fe1_\u4e32\u53e31-232\u4e0eTCP\u670d\u52a1\u5668\u53cc\u5411\u901a\u4fe1_\u4e32\u53e3TCP_broken8nf_stm32f4\" src=\"https:\/\/bkimg.cdn.bcebos.com\/pic\/4bed2e738bd4b31c8701ac6c6b99307f9e2f0608529e?x-bce-process=image\/format,f_auto\" \/> <\/p>\n<h2> 1. \u4e32\u53e31-232\u4e0eTCP\u901a\u4fe1\u57fa\u7840 <\/h2>\n<h3> 1.1 \u4e32\u53e3\u901a\u4fe1\u6982\u8ff0 <\/h3>\n<p> \u4e32\u53e3\u901a\u4fe1&#xff08;Serial Communication&#xff09;&#xff0c;\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u901a\u4fe1\u65b9\u5f0f&#xff0c;\u5b83\u5229\u7528\u4e32\u884c\u6570\u636e\u4f20\u8f93\u6765\u4ea4\u6362\u6570\u636e\u3002\u5728\u7535\u5b50\u8bbe\u5907\u4e2d&#xff0c;RS-232\u662f\u6700\u5e38\u89c1\u7684\u4e32\u884c\u63a5\u53e3\u6807\u51c6\u4e4b\u4e00&#xff0c;\u5e38\u7528\u4e8e\u8bbe\u5907\u95f4\u7684\u8fd1\u8ddd\u79bb\u6570\u636e\u4f20\u8f93\u3002\u5728\u672c\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u5c06\u63a2\u8ba8RS-232\u4e32\u53e3\u901a\u4fe1\u7684\u5de5\u4f5c\u539f\u7406&#xff0c;\u5e76\u5206\u6790\u5176\u4e0eTCP\/IP\u7f51\u7edc\u901a\u4fe1\u7684\u6865\u63a5\u57fa\u7840\u3002 <\/p>\n<h3> 1.2 TCP\/IP\u901a\u4fe1\u6982\u5ff5 <\/h3>\n<p> \u4f20\u8f93\u63a7\u5236\u534f\u8bae\/\u4e92\u8054\u7f51\u534f\u8bae&#xff08;TCP\/IP&#xff09;\u662f\u4e92\u8054\u7f51\u7684\u57fa\u7840\u534f\u8bae&#xff0c;\u8d1f\u8d23\u63d0\u4f9b\u53ef\u9760\u7684\u7f51\u7edc\u6570\u636e\u4f20\u8f93\u670d\u52a1\u3002TCP&#xff08;\u4f20\u8f93\u63a7\u5236\u534f\u8bae&#xff09;\u4fdd\u8bc1\u4e86\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027&#xff0c;\u800cIP&#xff08;\u4e92\u8054\u7f51\u534f\u8bae&#xff09;\u5219\u5904\u7406\u6570\u636e\u5305\u7684\u5bfb\u5740\u548c\u8def\u7531\u3002 <\/p>\n<h3> 1.3 \u4e32\u53e3\u4e0eTCP\u901a\u4fe1\u7684\u6865\u63a5 <\/h3>\n<p> \u8981\u5b9e\u73b0\u4e32\u53e3\u4e0eTCP\u4e4b\u95f4\u7684\u6570\u636e\u901a\u4fe1&#xff0c;\u9700\u8981\u4e00\u4e2a\u6865\u63a5\u7a0b\u5e8f\u6765\u8f6c\u53d1\u6570\u636e\u3002\u8fd9\u4e2a\u7a0b\u5e8f\u7684\u5de5\u4f5c\u539f\u7406\u662f\u76d1\u542c\u6765\u81ea\u4e32\u53e3\u7684\u6570\u636e&#xff0c;\u5e76\u5c06\u5176\u901a\u8fc7TCP\u53d1\u9001\u51fa\u53bb&#xff1b;\u540c\u65f6&#xff0c;\u76d1\u542cTCP\u7aef\u53e3\u7684\u6570\u636e&#xff0c;\u5e76\u5c06\u5176\u8f6c\u53d1\u5230\u4e32\u53e3\u3002\u8fd9\u6837\u4e00\u6765&#xff0c;\u5373\u4f7f\u4e24\u4e2a\u8bbe\u5907\u5728\u7269\u7406\u4e0a\u4e0d\u76f4\u63a5\u76f8\u8fde&#xff0c;\u5b83\u4eec\u4e5f\u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002\u5728\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u4e2d&#xff0c;\u6211\u4eec\u5c06\u5177\u4f53\u63a2\u8ba8\u5982\u4f55\u5b9e\u73b0\u8fd9\u6837\u7684\u6865\u63a5\u7a0b\u5e8f&#xff0c;\u5305\u62ec\u5fc5\u8981\u7684\u786c\u4ef6\u914d\u7f6e\u548c\u8f6f\u4ef6\u7f16\u7a0b\u3002 <\/p>\n<h2> 2. STM32F4\u914d\u7f6eUART1 <\/h2>\n<h3> 2.1 STM32F4 UART1\u786c\u4ef6\u63a5\u53e3 <\/h3>\n<h4> 2.1.1 UART1\u5f15\u811a\u5b9a\u4e49\u4e0e\u8fde\u63a5 <\/h4>\n<p> STM32F4\u7cfb\u5217\u5fae\u63a7\u5236\u5668\u63d0\u4f9b\u4e86\u591a\u8fbe5\u4e2aUART\u63a5\u53e3&#xff0c;\u5176\u4e2dUART1\u662f\u4e00\u4e2a\u5168\u53cc\u5de5\u901a\u7528\u5f02\u6b65\u6536\u53d1\u4f20\u8f93\u5668&#xff0c;\u5177\u6709\u8f83\u9ad8\u7684\u901a\u4fe1\u901f\u7387\u548c\u4e30\u5bcc\u7684\u529f\u80fd\u7279\u6027\u3002\u4e3a\u4e86\u4f7f\u7528UART1\u8fdb\u884c\u901a\u4fe1&#xff0c;\u9996\u5148\u9700\u8981\u4e86\u89e3\u5176\u786c\u4ef6\u63a5\u53e3\u7684\u5f15\u811a\u5b9a\u4e49\u53ca\u8fde\u63a5\u65b9\u5f0f\u3002 <\/p>\n<p> UART1\u7684\u786c\u4ef6\u63a5\u53e3\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5f15\u811a&#xff1a;  &#8211;  TX  &#xff1a;\u53d1\u9001\u6570\u636e\u5f15\u811a&#xff0c;\u7528\u4e8e\u4e32\u53e3\u6570\u636e\u7684\u8f93\u51fa\u3002  &#8211;  RX  &#xff1a;\u63a5\u6536\u6570\u636e\u5f15\u811a&#xff0c;\u7528\u4e8e\u4e32\u53e3\u6570\u636e\u7684\u8f93\u5165\u3002  &#8211;  CTS  &#xff1a;\u6e05\u9664\u53d1\u9001\u5f15\u811a&#xff0c;\u53ef\u7528\u6765\u63a7\u5236\u6570\u636e\u7684\u53d1\u9001\u3002  &#8211;  RTS  &#xff1a;\u8bf7\u6c42\u53d1\u9001\u5f15\u811a&#xff0c;\u7528\u4e8e\u4ece\u5916\u90e8\u8bbe\u5907\u8bf7\u6c42\u6570\u636e\u53d1\u9001\u3002 <\/p>\n<p> \u5728\u8fde\u63a5UART1\u65f6&#xff0c;\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9&#xff1a;  &#8211;  \u4ea4\u53c9\u8fde\u63a5  &#xff1a;\u901a\u5e38TX\u5230RX&#xff0c;RX\u5230TX\u7684\u4ea4\u53c9\u8fde\u63a5\u65b9\u5f0f\u662f\u6807\u51c6\u7684\u4e32\u53e3\u8fde\u63a5\u65b9\u5f0f\u3002  &#8211;  \u7535\u5e73\u6807\u51c6  &#xff1a;STM32F4\u7cfb\u5217\u82af\u7247\u7684UART\u63a5\u53e3\u91c7\u7528TTL\u7535\u5e73\u6807\u51c6\u3002\u5982\u679c\u9700\u8981\u4e0eRS-232\u6807\u51c6\u8bbe\u5907\u901a\u4fe1&#xff0c;\u5219\u9700\u8981\u901a\u8fc7\u7535\u5e73\u8f6c\u6362\u5668\u8fdb\u884c\u7535\u5e73\u5339\u914d\u3002  &#8211;  \u4e0a\u62c9\/\u4e0b\u62c9\u7535\u963b  &#xff1a;\u5728\u67d0\u4e9b\u5e94\u7528\u573a\u5408\u4e0b&#xff0c;\u53ef\u80fd\u9700\u8981\u6839\u636e\u5177\u4f53\u786c\u4ef6\u8bbe\u8ba1\u6765\u914d\u7f6e\u4e0a\u62c9\u6216\u4e0b\u62c9\u7535\u963b&#xff0c;\u4ee5\u786e\u4fdd\u7a33\u5b9a\u548c\u53ef\u9760\u7684\u901a\u4fe1\u3002 <\/p>\n<h4> 2.1.2 UART1\u63a5\u53e3\u53c2\u6570\u914d\u7f6e <\/h4>\n<p> \u914d\u7f6eUART1\u63a5\u53e3\u7684\u5173\u952e\u5728\u4e8e\u8bbe\u7f6e\u6b63\u786e\u7684\u901a\u4fe1\u53c2\u6570&#xff0c;\u5305\u62ec\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u548c\u6821\u9a8c\u4f4d\u7b49\u3002\u8fd9\u4e9b\u53c2\u6570\u5fc5\u987b\u5339\u914d\u901a\u4fe1\u53cc\u65b9&#xff0c;\u5426\u5219\u4f1a\u5bfc\u81f4\u901a\u4fe1\u9519\u8bef\u3002 <\/p>\n<h5> \u6ce2\u7279\u7387\u8bbe\u7f6e <\/h5>\n<p> \u6ce2\u7279\u7387\u662f\u6bcf\u79d2\u4f20\u8f93\u7684\u7b26\u53f7\u6570&#xff0c;\u662f\u4e32\u53e3\u901a\u4fe1\u4e2d\u6700\u91cd\u8981\u7684\u53c2\u6570\u4e4b\u4e00\u3002STM32F4\u7684UART\u652f\u6301\u4e0d\u540c\u7684\u6ce2\u7279\u7387\u8bbe\u7f6e&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6eUART_BRR\u5bc4\u5b58\u5668\u6765\u5b9e\u73b0\u3002\u4f8b\u5982&#xff0c;\u5982\u679c\u8981\u8bbe\u7f6e\u6ce2\u7279\u7387\u4e3a115200&#xff0c;\u4ee3\u7801\u914d\u7f6e\u5982\u4e0b&#xff1a; <\/p>\n<p>uint32_t baudrate &#061; 115200;<br \/>\nuint32_t clockSpeed &#061; 16000000; \/\/ \u5916\u90e8\u6676\u632f\u9891\u7387\u4e3a16MHz<br \/>\nuint32_t temp &#061; (clockSpeed \/ baudrate) \/ 16;<br \/>\nuint32_t mantissa &#061; temp \/ 100;<br \/>\nuint32_t fraction &#061; temp &#8211; (mantissa * 100);<br \/>\nuartHandle.Instance-&gt;BRR &#061; (mantissa &lt;&lt; 4) | (fraction &lt;&lt; 0);<\/p>\n<h5> \u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u548c\u6821\u9a8c\u4f4d <\/h5>\n<p> \u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u548c\u6821\u9a8c\u4f4d\u7684\u8bbe\u7f6e\u8981\u6839\u636e\u901a\u4fe1\u53cc\u65b9\u7684\u8981\u6c42\u8fdb\u884c\u914d\u7f6e\u3002\u4e00\u822c\u60c5\u51b5\u4e0b&#xff0c;\u6570\u636e\u4f4d\u8bbe\u7f6e\u4e3a8&#xff0c;\u505c\u6b62\u4f4d\u8bbe\u7f6e\u4e3a1&#xff0c;\u6821\u9a8c\u4f4d\u6839\u636e\u9700\u6c42\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u65e0\u6821\u9a8c\u4f4d\u6216\u5947\u5076\u6821\u9a8c\u3002\u4f8b\u5982&#xff0c;\u8bbe\u7f6e\u6570\u636e\u4f4d\u4e3a8\u4f4d\u3001\u505c\u6b62\u4f4d\u4e3a1\u4f4d\u3001\u65e0\u6821\u9a8c\u4f4d\u7684\u914d\u7f6e\u5982\u4e0b&#xff1a; <\/p>\n<p>uartHandle.Init.WordLength &#061; UART_WORDLENGTH_8B;<br \/>\nuartHandle.Init.StopBits &#061; UART_STOPBITS_1;<br \/>\nuartHandle.Init.Parity &#061; UART_PARITY_NONE;<br \/>\nuartHandle.Init.Mode &#061; UART_MODE_TX_RX;<\/p>\n<p> \u901a\u8fc7\u4e0a\u8ff0\u53c2\u6570\u7684\u914d\u7f6e&#xff0c;STM32F4\u7684UART1\u63a5\u53e3\u5c31\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u521d\u59cb\u5316&#xff0c;\u4ee5\u4fbf\u540e\u7eed\u8fdb\u884c\u8f6f\u4ef6\u914d\u7f6e\u548c\u529f\u80fd\u5b9e\u73b0\u3002 <\/p>\n<h3> 2.2 STM32F4 UART1\u8f6f\u4ef6\u914d\u7f6e <\/h3>\n<h4> 2.2.1 \u4e32\u53e3\u521d\u59cb\u5316\u4ee3\u7801\u7f16\u5199 <\/h4>\n<p> \u5728\u6210\u529f\u914d\u7f6e\u4e86UART1\u7684\u786c\u4ef6\u63a5\u53e3\u540e&#xff0c;\u63a5\u4e0b\u6765\u9700\u8981\u7f16\u5199\u8f6f\u4ef6\u5c42\u9762\u7684\u521d\u59cb\u5316\u4ee3\u7801\u3002\u8fd9\u4e3b\u8981\u5305\u62ec\u5bf9UART\u76f8\u5173\u7684\u5e93\u51fd\u6570\u8c03\u7528&#xff0c;\u4ee5\u53ca\u4e2d\u65ad\u3001DMA\u7b49\u9ad8\u7ea7\u529f\u80fd\u7684\u914d\u7f6e\u3002 <\/p>\n<p> \u521d\u59cb\u5316\u4ee3\u7801\u4e2d\u6700\u91cd\u8981\u7684\u90e8\u5206\u662f\u5bf9UART\u53e5\u67c4\u7684\u914d\u7f6e&#xff0c;\u8fd9\u5305\u62ec\u4e86\u5148\u524d\u8ba8\u8bba\u7684\u63a5\u53e3\u53c2\u6570\u8bbe\u7f6e\u3002\u4ee5HAL\u5e93\u4e3a\u4f8b&#xff0c;\u521d\u59cb\u5316\u51fd\u6570\u901a\u5e38\u5982\u4e0b&#xff1a; <\/p>\n<p>UART_HandleTypeDef uartHandle;<\/p>\n<p>void UART1_Init(void)<br \/>\n{<br \/>\n    \/\/ \u6253\u5f00UART1\u7684\u65f6\u949f<br \/>\n    __HAL_RCC_USART1_CLK_ENABLE();<br \/>\n    \/\/ \u524d\u9762\u5df2\u7ecf\u7ed9\u51fa\u7684\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\u914d\u7f6e\u4ee3\u7801&#8230;<\/p>\n<p>    \/\/ \u521d\u59cb\u5316UART1<br \/>\n    if(HAL_UART_Init(&amp;uartHandle) !&#061; HAL_OK)<br \/>\n    {<br \/>\n        \/\/ \u521d\u59cb\u5316\u5931\u8d25\u5904\u7406\u4ee3\u7801<br \/>\n    }<br \/>\n}<\/p>\n<p> \u4ee5\u4e0a\u4ee3\u7801\u4e2d&#xff0c;  HAL_UART_Init  \u51fd\u6570\u5c06\u5b8c\u6210\u521d\u59cb\u5316\u64cd\u4f5c&#xff0c;\u5e76\u5728\u521d\u59cb\u5316\u5931\u8d25\u65f6\u8fd4\u56de\u9519\u8bef\u4ee3\u7801\u3002 <\/p>\n<h4> 2.2.2 \u4e32\u53e3\u4e2d\u65ad\u4e0eDMA\u914d\u7f6e <\/h4>\n<p> STM32F4\u652f\u6301\u901a\u8fc7\u4e2d\u65ad\u548cDMA\u8fdb\u884c\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u3002\u4e32\u53e3\u4e2d\u65ad\u53ef\u4ee5\u7528\u4e8e\u5904\u7406\u5355\u5b57\u8282\u6216\u77ed\u6570\u636e\u5e27\u7684\u63a5\u6536&#xff0c;\u800cDMA\u9002\u5408\u5927\u91cf\u6570\u636e\u7684\u4f20\u8f93\u3002 <\/p>\n<h5> \u4e32\u53e3\u4e2d\u65ad\u914d\u7f6e <\/h5>\n<p> \u4e32\u53e3\u4e2d\u65ad\u7684\u914d\u7f6e\u6b65\u9aa4\u5982\u4e0b&#xff1a;  1. \u4f7f\u80fdUART\u4e2d\u65ad\u901a\u9053\u3002  2. \u5b9e\u73b0\u4e2d\u65ad\u670d\u52a1\u51fd\u6570\u3002  3. \u5728\u4e2d\u65ad\u670d\u52a1\u51fd\u6570\u4e2d\u8bfb\u53d6\u63a5\u6536\u5230\u7684\u6570\u636e&#xff0c;\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\u3002 <\/p>\n<p> \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b&#xff1a; <\/p>\n<p>void USART1_IRQHandler(void)<br \/>\n{<br \/>\n    HAL_UART_IRQHandler(&amp;uartHandle);<br \/>\n}<\/p>\n<p>void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)<br \/>\n{<br \/>\n    if(huart-&gt;Instance &#061;&#061; USART1)<br \/>\n    {<br \/>\n        \/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e<br \/>\n    }<br \/>\n}<\/p>\n<p> \u5728\u4e2d\u65ad\u670d\u52a1\u51fd\u6570\u4e2d\u8c03\u7528  HAL_UART_IRQHandler  \u4ee5\u89e6\u53d1\u4e2d\u65ad\u5904\u7406&#xff0c;\u7136\u540e\u5728  HAL_UART_RxCpltCallback  \u56de\u8c03\u51fd\u6570\u4e2d\u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e\u3002 <\/p>\n<h5> DMA\u914d\u7f6e <\/h5>\n<p> \u5bf9\u4e8eDMA\u914d\u7f6e&#xff0c;\u9700\u8981\u5b8c\u6210\u4ee5\u4e0b\u6b65\u9aa4&#xff1a;  1. \u521d\u59cb\u5316DMA\u63a7\u5236\u5668\u548c\u901a\u9053\u3002  2. \u914d\u7f6eUART\u7684DMA\u4f20\u8f93\u8bf7\u6c42\u3002  3. \u5b9e\u73b0DMA\u4f20\u8f93\u5b8c\u6210\u56de\u8c03\u51fd\u6570\u3002 <\/p>\n<p> \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b&#xff1a; <\/p>\n<p>void DMA1_Stream6_IRQHandler(void)<br \/>\n{<br \/>\n    HAL_DMA_IRQHandler(uartHandle.hdma_rx);<br \/>\n}<\/p>\n<p>void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)<br \/>\n{<br \/>\n    if(huart-&gt;Instance &#061;&#061; USART1)<br \/>\n    {<br \/>\n        \/\/ DMA\u4f20\u8f93\u5b8c\u6210\u540e\u7684\u6570\u636e\u5904\u7406\u4ee3\u7801<br \/>\n    }<br \/>\n}<\/p>\n<p>void UART1_Init(void)<br \/>\n{<br \/>\n    \/\/ &#8230; \u5148\u524d\u521d\u59cb\u5316\u4ee3\u7801 &#8230;<br \/>\n    \/\/ \u5f00\u542fDMA\u65f6\u949f<br \/>\n    __HAL_RCC_DMA1_CLK_ENABLE();<br \/>\n    \/\/ \u914d\u7f6eDMA\u4f20\u8f93\u53c2\u6570&#xff0c;\u4f8b\u5982\u4f20\u8f93\u65b9\u5411\u3001\u6570\u636e\u5927\u5c0f\u3001\u5916\u8bbe\u5730\u5740\u7b49<br \/>\n    uartHandle.hdmarx &#061; DMA1_Stream6;<br \/>\n    __HAL_LINKDMA(&amp;uartHandle, hdmarx, *(__IO DMA_HandleTypeDef*)&amp;DMA1_Stream6);<br \/>\n    \/\/ \u542f\u7528DMA\u4f20\u8f93\u5b8c\u6210\u4e2d\u65ad<br \/>\n    __HAL_DMA_ENABLE_IT(&amp;uartHandle.hdmarx, DMA_IT_TC);<br \/>\n    \/\/ \u542f\u52a8DMA\u63a5\u6536<br \/>\n    HAL_UART_Receive_DMA(&amp;uartHandle, rxBuffer, bufferSize);<br \/>\n}<\/p>\n<p> \u5728DMA\u914d\u7f6e\u4e2d&#xff0c;\u901a\u8fc7  HAL_UART_Receive_DMA  \u51fd\u6570\u542f\u52a8DMA\u63a5\u6536&#xff0c;\u5e76\u5728\u4f20\u8f93\u5b8c\u6210\u540e\u8c03\u7528\u56de\u8c03\u51fd\u6570\u8fdb\u884c\u6570\u636e\u5904\u7406\u3002\u901a\u8fc7DMA&#xff0c;\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u7684\u81ea\u52a8\u63a5\u6536&#xff0c;\u51cf\u8f7bCPU\u8d1f\u62c5&#xff0c;\u63d0\u9ad8\u6570\u636e\u5904\u7406\u6548\u7387\u3002 <\/p>\n<p> \u901a\u8fc7\u4e0a\u8ff0\u8f6f\u4ef6\u914d\u7f6e&#xff0c;STM32F4\u7684UART1\u63a5\u53e3\u4fbf\u53ef\u4ee5\u5728\u9879\u76ee\u4e2d\u88ab\u6709\u6548\u5730\u5229\u7528\u8d77\u6765&#xff0c;\u4e3a\u540e\u7eed\u7684\u901a\u4fe1\u4e0e\u6570\u636e\u5904\u7406\u5960\u5b9a\u57fa\u7840\u3002 <\/p>\n<h2> 3. \u5efa\u7acbTCP\u670d\u52a1\u5668\u8fde\u63a5 <\/h2>\n<p> \u5efa\u7acbTCP\u670d\u52a1\u5668\u8fde\u63a5\u662f\u5b9e\u73b0\u4e32\u53e3\u4e0eTCP\u6865\u63a5\u529f\u80fd\u7684\u5173\u952e\u6b65\u9aa4\u3002\u5728\u672c\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u5c06\u6df1\u5165\u4e86\u89e3TCP\u670d\u52a1\u5668\u7684\u5de5\u4f5c\u539f\u7406&#xff0c;\u5e76\u63a2\u8ba8\u5982\u4f55\u5728\u7f16\u7a0b\u5b9e\u8df5\u4e2d\u5b9e\u73b0TCP\u670d\u52a1\u5668&#xff0c;\u4ece\u800c\u4e3a\u540e\u7eed\u7ae0\u8282\u4e2d\u4e32\u53e3\u4e0eTCP\u4e4b\u95f4\u7684\u6570\u636e\u6865\u63a5\u6253\u4e0b\u575a\u5b9e\u7684\u57fa\u7840\u3002 <\/p>\n<h3> 3.1 TCP\u670d\u52a1\u5668\u5de5\u4f5c\u539f\u7406 <\/h3>\n<h4> 3.1.1 TCP\/IP\u534f\u8bae\u6808\u6982\u8ff0 <\/h4>\n<p> TCP&#xff08;Transmission Control Protocol&#xff09;\u662f\u4e00\u79cd\u9762\u5411\u8fde\u63a5\u7684\u3001\u53ef\u9760\u7684\u3001\u57fa\u4e8e\u5b57\u8282\u6d41\u7684\u4f20\u8f93\u5c42\u901a\u4fe1\u534f\u8bae\u3002\u5b83\u5141\u8bb8\u4ece\u4e00\u4e2a\u4e3b\u673a\u53d1\u9001\u6570\u636e\u5230\u53e6\u4e00\u4e2a\u4e3b\u673a&#xff0c;\u5e76\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u987a\u5e8f\u3002IP&#xff08;Internet Protocol&#xff09;\u5219\u8d1f\u8d23\u5c06TCP\u6bb5\u4f20\u9012\u7ed9\u76ee\u6807\u5730\u5740\u3002\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d&#xff0c;\u6570\u636e\u9996\u5148\u5728\u5e94\u7528\u5c42\u751f\u6210&#xff0c;\u7136\u540e\u9010\u5c42\u5c01\u88c5\u76f4\u5230\u7f51\u7edc\u5c42&#xff0c;\u901a\u8fc7IP\u534f\u8bae\u8fdb\u884c\u4f20\u8f93&#xff0c;\u6700\u540e\u5728\u76ee\u7684\u5730\u8fdb\u884c\u9010\u5c42\u89e3\u5c01\u88c5&#xff0c;\u4ece\u800c\u5b8c\u6210\u7aef\u5230\u7aef\u7684\u6570\u636e\u4f20\u8f93\u3002 <\/p>\n<h4> 3.1.2 \u670d\u52a1\u5668\u7aef\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u673a\u5236 <\/h4>\n<p> \u670d\u52a1\u5668\u7aef\u4e0e\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u901a\u4fe1\u9075\u5faa\u201c\u4e09\u6b21\u63e1\u624b\u201d\u7684\u8fc7\u7a0b&#xff0c;\u8fd9\u4e00\u8fc7\u7a0b\u786e\u4fdd\u4e86\u8fde\u63a5\u7684\u5efa\u7acb\u662f\u53ef\u9760\u4e14\u540c\u6b65\u7684\u3002\u5728\u4e09\u6b21\u63e1\u624b\u4e2d&#xff0c;\u670d\u52a1\u5668\u7aef\u5904\u4e8e\u76d1\u542c\u72b6\u6001&#xff0c;\u7b49\u5f85\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u5f53\u5ba2\u6237\u7aef\u53d1\u51fa\u8fde\u63a5\u8bf7\u6c42\u540e&#xff0c;\u670d\u52a1\u5668\u7aef\u4f1a\u54cd\u5e94\u8fd9\u4e2a\u8bf7\u6c42&#xff0c;\u5e76\u5411\u5ba2\u6237\u7aef\u786e\u8ba4\u8fde\u63a5\u5df2\u5efa\u7acb\u3002\u4e00\u65e6\u8fde\u63a5\u5efa\u7acb&#xff0c;\u6570\u636e\u4fbf\u53ef\u4ee5\u53cc\u5411\u4f20\u8f93\u3002 <\/p>\n<h3> 3.2 TCP\u670d\u52a1\u5668\u7f16\u7a0b\u5b9e\u8df5 <\/h3>\n<h4> 3.2.1 \u4f7f\u7528\u5957\u63a5\u5b57\u7f16\u7a0b\u521b\u5efa\u670d\u52a1\u5668 <\/h4>\n<p> \u5728\u7f16\u7a0b\u5b9e\u8df5\u4e2d&#xff0c;\u4f7f\u7528\u5957\u63a5\u5b57&#xff08;sockets&#xff09;\u662f\u521b\u5efa\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u7684\u5e38\u7528\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528C\u8bed\u8a00\u5728Linux\u73af\u5883\u4e0b\u521b\u5efaTCP\u670d\u52a1\u5668\u7684\u57fa\u672c\u4ee3\u7801\u793a\u4f8b&#xff1a; <\/p>\n<p>#include &lt;stdio.h&gt;<br \/>\n#include &lt;stdlib.h&gt;<br \/>\n#include &lt;string.h&gt;<br \/>\n#include &lt;unistd.h&gt;<br \/>\n#include &lt;arpa\/inet.h&gt;<br \/>\n#include &lt;sys\/socket.h&gt;<\/p>\n<p>int main() {<br \/>\n    int server_fd, new_socket;<br \/>\n    struct sockaddr_in address;<br \/>\n    int opt &#061; 1;<br \/>\n    int addrlen &#061; sizeof(address);<br \/>\n    char buffer[1024] &#061; {0};<br \/>\n    char *hello &#061; &#034;Hello from server&#034;;<\/p>\n<p>    \/\/ \u521b\u5efa\u5957\u63a5\u5b57<br \/>\n    if ((server_fd &#061; socket(AF_INET, SOCK_STREAM, 0)) &#061;&#061; 0) {<br \/>\n        perror(&#034;socket failed&#034;);<br \/>\n        exit(EXIT_FAILURE);<br \/>\n    }<\/p>\n<p>    \/\/ \u7ed1\u5b9a\u5957\u63a5\u5b57\u5230\u5730\u5740\u548c\u7aef\u53e3<br \/>\n    if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &amp;opt, sizeof(opt))) {<br \/>\n        perror(&#034;setsockopt&#034;);<br \/>\n        exit(EXIT_FAILURE);<br \/>\n    }<br \/>\n    address.sin_family &#061; AF_INET;<br \/>\n    address.sin_addr.s_addr &#061; INADDR_ANY;<br \/>\n    address.sin_port &#061; htons(8080);<\/p>\n<p>    if (bind(server_fd, (struct sockaddr *)&amp;address, sizeof(address)) &lt; 0) {<br \/>\n        perror(&#034;bind failed&#034;);<br \/>\n        exit(EXIT_FAILURE);<br \/>\n    }<\/p>\n<p>    \/\/ \u76d1\u542c\u7aef\u53e3<br \/>\n    if (listen(server_fd, 3) &lt; 0) {<br \/>\n        perror(&#034;listen&#034;);<br \/>\n        exit(EXIT_FAILURE);<br \/>\n    }<\/p>\n<p>    \/\/ \u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5<br \/>\n    if ((new_socket &#061; accept(server_fd, (struct sockaddr *)&amp;address, (socklen_t*)&amp;addrlen)) &lt; 0) {<br \/>\n        perror(&#034;accept&#034;);<br \/>\n        exit(EXIT_FAILURE);<br \/>\n    }<\/p>\n<p>    \/\/ \u8bfb\u53d6\u6570\u636e<br \/>\n    read(new_socket, buffer, 1024);<br \/>\n    printf(&#034;Message from client: %s\\\\n&#034;, buffer);<\/p>\n<p>    \/\/ \u53d1\u9001\u6570\u636e\u7ed9\u5ba2\u6237\u7aef<br \/>\n    send(new_socket, hello, strlen(hello), 0);<br \/>\n    printf(&#034;Hello message sent\\\\n&#034;);<\/p>\n<p>    \/\/ \u5173\u95ed\u5957\u63a5\u5b57<br \/>\n    close(server_fd);<\/p>\n<p>    return 0;<br \/>\n}<\/p>\n<p> \u6b64\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2aTCP\u670d\u52a1\u5668&#xff0c;\u5b83\u76d1\u542c8080\u7aef\u53e3\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u5f53\u4e00\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42\u8fde\u63a5\u65f6&#xff0c;\u670d\u52a1\u5668\u63a5\u53d7\u8fde\u63a5&#xff0c;\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6d88\u606f&#xff0c;\u7136\u540e\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2a\u7b80\u5355\u7684\u201cHello\u201d\u6d88\u606f\u3002 <\/p>\n<h4> 3.2.2 \u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42 <\/h4>\n<p> \u670d\u52a1\u5668\u7aef\u4ee3\u7801\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u7684\u903b\u8f91\u662f\u5173\u952e\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d&#xff0c;  accept  \u51fd\u6570\u8d1f\u8d23\u7b49\u5f85\u5e76\u63a5\u53d7\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u4e00\u65e6\u8bf7\u6c42\u88ab\u63a5\u53d7&#xff0c;\u5c31\u4f1a\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5957\u63a5\u5b57  new_socket  &#xff0c;\u4e13\u95e8\u7528\u4e8e\u4e0e\u8be5\u5ba2\u6237\u7aef\u7684\u6570\u636e\u4ea4\u6362\u3002 <\/p>\n<p> \u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;\u670d\u52a1\u5668\u5f80\u5f80\u9700\u8981\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef&#xff0c;\u8fd9\u65f6\u5c31\u9700\u8981\u4f7f\u7528\u591a\u7ebf\u7a0b\u6216\u5f02\u6b65I\/O\u6280\u672f\u6765\u540c\u65f6\u7ba1\u7406\u591a\u4e2a\u8fde\u63a5\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b\u6765\u5904\u7406\u6bcf\u4e2a\u65b0\u7684\u8fde\u63a5&#xff0c;\u6216\u8005\u4f7f\u7528\u975e\u963b\u585eI\/O\u64cd\u4f5c\u6765\u5141\u8bb8\u670d\u52a1\u5668\u5728\u5355\u4e2a\u7ebf\u7a0b\u5185\u5904\u7406\u591a\u4e2a\u5e76\u53d1\u8fde\u63a5\u3002 <\/p>\n<h3> \u6848\u4f8b\u5206\u6790&#xff1a;TCP\u670d\u52a1\u5668\u5728\u5b9e\u9645\u573a\u666f\u4e2d\u7684\u5e94\u7528 <\/h3>\n<p> \u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3TCP\u670d\u52a1\u5668\u5728\u5b9e\u9645\u573a\u666f\u4e2d\u7684\u5e94\u7528&#xff0c;\u6211\u4eec\u6765\u5206\u6790\u4e00\u4e2a\u5177\u4f53\u7684\u6848\u4f8b\u3002\u5047\u8bbe\u6709\u4e00\u4e2a\u73af\u5883\u76d1\u63a7\u7cfb\u7edf&#xff0c;\u8be5\u7cfb\u7edf\u9700\u8981\u5c06\u73b0\u573a\u4f20\u611f\u5668\u6536\u96c6\u5230\u7684\u6570\u636e\u5b9e\u65f6\u4f20\u8f93\u7ed9\u4e2d\u5fc3\u670d\u52a1\u5668\u8fdb\u884c\u5206\u6790\u548c\u5b58\u50a8\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d&#xff0c;\u4e2d\u5fc3\u670d\u52a1\u5668\u5c31\u662fTCP\u670d\u52a1\u5668&#xff0c;\u8d1f\u8d23\u76d1\u542c\u6765\u81ea\u8fdc\u7a0b\u4f20\u611f\u5668\u8282\u70b9&#xff08;\u5ba2\u6237\u7aef&#xff09;\u7684\u6570\u636e&#xff0c;\u5e76\u5c06\u5176\u5b58\u50a8\u5230\u6570\u636e\u5e93\u4e2d\u3002 <\/p>\n<p> \u5728\u6b64\u573a\u666f\u4e2d&#xff0c;\u670d\u52a1\u5668\u7aef\u7684\u4ee3\u7801\u4e0d\u4ec5\u8981\u80fd\u591f\u63a5\u53d7\u8fde\u63a5\u8bf7\u6c42\u548c\u6570\u636e\u4f20\u8f93&#xff0c;\u8fd8\u9700\u8981\u5177\u5907\u4ee5\u4e0b\u7279\u6027&#xff1a; <\/p>\n<ul>\n<li> \u9ad8\u5e76\u53d1&#xff1a;\u80fd\u540c\u65f6\u5904\u7406\u5927\u91cf\u6765\u81ea\u4e0d\u540c\u4f20\u611f\u5668\u7684\u6570\u636e\u4f20\u8f93\u8bf7\u6c42\u3002 <\/li>\n<li> \u6570\u636e\u683c\u5f0f\u89e3\u6790&#xff1a;\u80fd\u591f\u89e3\u6790\u4f20\u611f\u5668\u53d1\u9001\u7684\u6570\u636e\u683c\u5f0f&#xff0c;\u5e76\u8fdb\u884c\u9002\u5f53\u7684\u5904\u7406\u3002 <\/li>\n<li> \u6570\u636e\u5b58\u50a8&#xff1a;\u5c06\u89e3\u6790\u540e\u7684\u6570\u636e\u5b58\u50a8\u5230\u6570\u636e\u5e93\u4e2d\u3002 <\/li>\n<li> \u5bb9\u9519\u6027&#xff1a;\u5f53\u7f51\u7edc\u4e0d\u7a33\u5b9a\u5bfc\u81f4\u8fde\u63a5\u4e2d\u65ad\u65f6&#xff0c;\u670d\u52a1\u5668\u9700\u8981\u6709\u6062\u590d\u673a\u5236&#xff0c;\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5\u3002 <\/li>\n<\/ul>\n<p> \u5728\u672c\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u4e86\u89e3\u4e86TCP\u670d\u52a1\u5668\u7684\u5de5\u4f5c\u539f\u7406&#xff0c;\u5e76\u901a\u8fc7\u5b9e\u9645\u7f16\u7a0b\u5b9e\u8df5\u5c55\u793a\u4e86\u5982\u4f55\u521b\u5efaTCP\u670d\u52a1\u5668\u6765\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u5728\u4e0b\u4e00\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u5c06\u63a2\u8ba8\u4e32\u53e3\u4e0eTCP\u4e4b\u95f4\u7684\u6570\u636e\u6865\u63a5\u7a0b\u5e8f\u903b\u8f91&#xff0c;\u4f7fSTM32F4\u7b49\u8bbe\u5907\u80fd\u591f\u901a\u8fc7TCP\u7f51\u7edc\u4f20\u8f93\u6570\u636e\u3002 <\/p>\n<h2> 4. \u4e32\u53e3\u4e0eTCP\u6865\u63a5\u7a0b\u5e8f\u903b\u8f91 <\/h2>\n<p> \u5728\u73b0\u4ee3\u6570\u636e\u901a\u4fe1\u7cfb\u7edf\u4e2d&#xff0c;\u5c06\u4e32\u53e3\u6570\u636e\u4e0eTCP\/IP\u7f51\u7edc\u534f\u8bae\u6808\u6865\u63a5\u8d77\u6765\u662f\u4e00\u9879\u5e38\u89c1\u7684\u4efb\u52a1\u3002\u672c\u7ae0\u8282\u5c06\u6df1\u5165\u63a2\u8ba8\u4e32\u53e3\u4e0eTCP\u4e4b\u95f4\u7684\u6865\u63a5\u7a0b\u5e8f\u903b\u8f91&#xff0c;\u5177\u4f53\u5305\u62ec\u6570\u636e\u63a5\u6536\u4e0e\u53d1\u9001\u673a\u5236\u3001\u7f13\u51b2\u533a\u7ba1\u7406\u4e0e\u6d41\u63a7\u5236&#xff0c;\u4ee5\u53ca\u5b9e\u73b0\u4e32\u53e3\u5230TCP\u548cTCP\u5230\u4e32\u53e3\u7684\u6570\u636e\u8f6c\u53d1\u3002 <\/p>\n<h3> 4.1 \u4e32\u53e3\u4e0eTCP\u6570\u636e\u6d41\u5904\u7406 <\/h3>\n<p> \u4e32\u53e3\u901a\u4fe1&#xff08;\u5982RS-232\u6216RS-485&#xff09;\u548cTCP\/IP\u7f51\u7edc\u901a\u4fe1\u5728\u786c\u4ef6\u548c\u534f\u8bae\u5c42\u9762\u4e0a\u6709\u7740\u672c\u8d28\u7684\u4e0d\u540c\u3002\u4e32\u53e3\u901a\u4fe1\u901a\u5e38\u57fa\u4e8e\u7b80\u5355\u7684\u7269\u7406\u5c42\u548c\u94fe\u8def\u5c42\u534f\u8bae&#xff0c;\u800cTCP\/IP\u5219\u63d0\u4f9b\u4e86\u5168\u529f\u80fd\u7684\u4f20\u8f93\u5c42\u548c\u5e94\u7528\u5c42\u534f\u8bae\u652f\u6301\u3002\u4e3a\u4e86\u5728\u8fd9\u4e24\u79cd\u901a\u4fe1\u65b9\u5f0f\u4e4b\u95f4\u8fdb\u884c\u6709\u6548\u6865\u63a5&#xff0c;\u9700\u8981\u5bf9\u6570\u636e\u6d41\u8fdb\u884c\u9002\u5f53\u7684\u5904\u7406\u3002 <\/p>\n<h4> 4.1.1 \u6570\u636e\u63a5\u6536\u4e0e\u53d1\u9001\u673a\u5236 <\/h4>\n<p> \u9996\u5148&#xff0c;\u6211\u4eec\u9700\u8981\u4e86\u89e3\u4e32\u53e3\u548cTCP\u7684\u6570\u636e\u63a5\u6536\u4e0e\u53d1\u9001\u673a\u5236\u3002\u4e32\u53e3\u901a\u4fe1\u7684\u6570\u636e\u63a5\u6536\u901a\u5e38\u662f\u901a\u8fc7\u4e2d\u65ad\u9a71\u52a8\u6216DMA&#xff08;\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee&#xff09;\u6765\u5b8c\u6210\u7684&#xff0c;\u800cTCP\u7684\u6570\u636e\u63a5\u6536\u5219\u7531\u64cd\u4f5c\u7cfb\u7edf\u7684\u5957\u63a5\u5b57API\u7ba1\u7406\u3002 <\/p>\n<h5> \u4e32\u53e3\u6570\u636e\u63a5\u6536 <\/h5>\n<p> \u5728STM32F4\u7cfb\u5217\u5fae\u63a7\u5236\u5668\u4e0a&#xff0c;\u4e32\u53e3\u6570\u636e\u63a5\u6536\u901a\u5e38\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b9e\u73b0&#xff1a; <\/p>\n<li>  \u521d\u59cb\u5316\u4e32\u53e3  &#xff1a;\u914d\u7f6e\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\u7b49\u53c2\u6570\u3002 <\/li>\n<li>  \u914d\u7f6e\u4e2d\u65ad\u6216DMA  &#xff1a;\u5982\u679c\u4f7f\u7528\u4e2d\u65ad\u65b9\u5f0f&#xff0c;\u5f00\u542f\u63a5\u6536\u4e2d\u65ad&#xff1b;\u5982\u679c\u4f7f\u7528DMA\u65b9\u5f0f&#xff0c;\u5219\u914d\u7f6eDMA\u4f20\u8f93\u901a\u9053\u3002 <\/li>\n<p>\/* \u4e32\u53e3\u521d\u59cb\u5316\u793a\u4f8b\u4ee3\u7801 *\/<br \/>\nvoid USART1_Init(uint32_t baudrate) {<br \/>\n    \/\/ \u7701\u7565\u521d\u59cb\u5316\u8fc7\u7a0b\u7684\u8be6\u7ec6\u4ee3\u7801<br \/>\n}<\/p>\n<p>\/* \u4e32\u53e3\u4e2d\u65ad\u56de\u8c03\u51fd\u6570\u793a\u4f8b\u4ee3\u7801 *\/<br \/>\nvoid USART1_IRQHandler(void) {<br \/>\n    if (USART_GetITStatus(USART1, USART_IT_RXNE) !&#061; RESET) {<br \/>\n        uint8_t data &#061; USART_ReceiveData(USART1);<br \/>\n        \/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e<br \/>\n    }<br \/>\n}<\/p>\n<h5> TCP\u6570\u636e\u63a5\u6536 <\/h5>\n<p> \u5728\u670d\u52a1\u5668\u7aef&#xff0c;TCP\u6570\u636e\u7684\u63a5\u6536\u662f\u7531\u5957\u63a5\u5b57API\u63a7\u5236\u7684\u3002\u901a\u5e38\u60c5\u51b5\u4e0b&#xff0c;\u4f7f\u7528\u963b\u585e\u8c03\u7528\u6216\u975e\u963b\u585e\u8c03\u7528\u6765\u5904\u7406\u6570\u636e\u63a5\u6536&#xff1a; <\/p>\n<p>\/* TCP\u5957\u63a5\u5b57\u521b\u5efa\u53ca\u76d1\u542c\u793a\u4f8b\u4ee3\u7801 *\/<br \/>\nint server_fd, new_socket;<br \/>\nstruct sockaddr_in address;<\/p>\n<p>\/* \u521b\u5efa\u5957\u63a5\u5b57 *\/<br \/>\nif ((server_fd &#061; socket(AF_INET, SOCK_STREAM, 0)) &#061;&#061; 0) {<br \/>\n    perror(&#034;socket failed&#034;);<br \/>\n    exit(EXIT_FAILURE);<br \/>\n}<\/p>\n<p>\/* \u7ed1\u5b9a\u5957\u63a5\u5b57\u5230IP\u548c\u7aef\u53e3 *\/<br \/>\naddress.sin_family &#061; AF_INET;<br \/>\naddress.sin_addr.s_addr &#061; INADDR_ANY;<br \/>\naddress.sin_port &#061; htons(PORT);<\/p>\n<p>if (bind(server_fd, (struct sockaddr *)&amp;address, sizeof(address)) &lt; 0) {<br \/>\n    perror(&#034;bind failed&#034;);<br \/>\n    exit(EXIT_FAILURE);<br \/>\n}<\/p>\n<p>\/* \u5f00\u59cb\u76d1\u542c *\/<br \/>\nif (listen(server_fd, 3) &lt; 0) {<br \/>\n    perror(&#034;listen&#034;);<br \/>\n    exit(EXIT_FAILURE);<br \/>\n}<\/p>\n<p>\/* \u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5 *\/<br \/>\nif ((new_socket &#061; accept(server_fd, (struct sockaddr *)&amp;address, (socklen_t*)&amp;addrlen)) &lt; 0) {<br \/>\n    perror(&#034;accept&#034;);<br \/>\n    exit(EXIT_FAILURE);<br \/>\n}<\/p>\n<p>\/* \u63a5\u6536\u6570\u636e *\/<br \/>\nchar buffer[1024] &#061; {0};<br \/>\nrecv(new_socket, buffer, 1024, 0);<\/p>\n<h4> 4.1.2 \u7f13\u51b2\u533a\u7ba1\u7406\u4e0e\u6d41\u63a7\u5236 <\/h4>\n<p> \u5728\u4e32\u53e3\u4e0eTCP\u6865\u63a5\u8fc7\u7a0b\u4e2d&#xff0c;\u7f13\u51b2\u533a\u7ba1\u7406\u4e0e\u6d41\u63a7\u5236\u662f\u4fdd\u8bc1\u6570\u636e\u51c6\u786e\u4f20\u8f93\u7684\u5173\u952e\u3002\u7531\u4e8e\u4e32\u53e3\u901a\u4fe1\u4e0eTCP\u8fde\u63a5\u7684\u901f\u7387\u53ef\u80fd\u4e0d\u540c&#xff0c;\u56e0\u6b64\u9700\u8981\u5408\u7406\u7684\u7f13\u51b2\u7b56\u7565\u6765\u786e\u4fdd\u6570\u636e\u4e0d\u4f1a\u4e22\u5931\u3002 <\/p>\n<h5> \u4e32\u53e3\u7f13\u51b2\u533a\u7ba1\u7406 <\/h5>\n<p> \u5728\u4e32\u53e3\u6570\u636e\u63a5\u6536\u8fc7\u7a0b\u4e2d&#xff0c;\u901a\u5e38\u4f7f\u7528\u73af\u5f62\u7f13\u51b2\u533a&#xff08;Ring Buffer&#xff09;\u6765\u5b58\u50a8\u6570\u636e&#xff0c;\u4ee5\u4fbf\u4e8e\u5904\u7406\u6570\u636e\u6d41\u3002 <\/p>\n<p>#define BUFFER_SIZE 1024<\/p>\n<p>static uint8_t buffer[BUFFER_SIZE];<br \/>\nstatic int read_ptr &#061; 0;<br \/>\nstatic int write_ptr &#061; 0;<\/p>\n<p>void RingBuffer_AddByte(uint8_t data) {<br \/>\n    buffer[write_ptr] &#061; data;<br \/>\n    write_ptr &#061; (write_ptr &#043; 1) % BUFFER_SIZE;<br \/>\n    if (write_ptr &#061;&#061; read_ptr) {<br \/>\n        read_ptr &#061; (read_ptr &#043; 1) % BUFFER_SIZE; \/\/ \u7f13\u51b2\u533a\u6ee1\u4e86&#xff0c;\u4e22\u5f03\u65e7\u6570\u636e<br \/>\n    }<br \/>\n}<\/p>\n<p>uint8_t RingBuffer_GetByte() {<br \/>\n    uint8_t data &#061; buffer[read_ptr];<br \/>\n    read_ptr &#061; (read_ptr &#043; 1) % BUFFER_SIZE;<br \/>\n    return data;<br \/>\n}<\/p>\n<h5> TCP\u6d41\u63a7\u5236 <\/h5>\n<p> TCP\u901a\u8fc7\u62e5\u585e\u63a7\u5236\u548c\u6d41\u91cf\u63a7\u5236\u673a\u5236\u6765\u9632\u6b62\u7f51\u7edc\u4e2d\u6570\u636e\u7684\u4e22\u5931&#xff0c;\u4f46\u6865\u63a5\u7a0b\u5e8f\u8fd8\u9700\u8981\u5904\u7406\u4e32\u53e3\u4e0eTCP\u901f\u7387\u4e0d\u5339\u914d\u7684\u95ee\u9898\u3002 <\/p>\n<p> \u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u5408\u9002\u7684TCP\u7a97\u53e3\u5927\u5c0f\u6765\u7f13\u89e3\u8fd9\u4e2a\u95ee\u9898&#xff0c;\u5e76\u901a\u8fc7\u8c03\u6574\u4e32\u53e3\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f\u6765\u9002\u5e94\u4e0d\u540c\u901f\u7387\u7684\u6570\u636e\u6d41\u3002 <\/p>\n<h3> 4.2 \u6865\u63a5\u7a0b\u5e8f\u7684\u5b9e\u73b0 <\/h3>\n<p> \u6865\u63a5\u7a0b\u5e8f\u662f\u5c06\u4e32\u53e3\u6570\u636e\u6d41\u8f6c\u6362\u4e3aTCP\u6570\u636e\u6d41&#xff0c;\u6216\u5c06TCP\u6570\u636e\u6d41\u8f6c\u6362\u4e3a\u4e32\u53e3\u6570\u636e\u6d41\u7684\u5173\u952e\u7ec4\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e24\u79cd\u6570\u636e\u6d41\u8f6c\u6362\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002 <\/p>\n<h4> 4.2.1 \u4e32\u53e3\u5230TCP\u7684\u6570\u636e\u8f6c\u53d1 <\/h4>\n<p> \u4e32\u53e3\u5230TCP\u7684\u6570\u636e\u8f6c\u53d1\u5305\u62ec\u8bfb\u53d6\u4e32\u53e3\u6570\u636e\u5e76\u53d1\u9001\u5230TCP\u8fde\u63a5\u7684\u8fc7\u7a0b\u3002 <\/p>\n<p>void Forward_SerialToTCP(uint8_t data) {<br \/>\n    \/\/ \u5c06\u6570\u636e\u53d1\u9001\u5230TCP\u8fde\u63a5<br \/>\n    send(new_socket, &amp;data, 1, 0);<br \/>\n}<\/p>\n<p> \u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d&#xff0c;\u9700\u8981\u4f7f\u7528\u4e32\u53e3\u63a5\u6536\u4e2d\u65ad\u6765\u8c03\u7528\u8f6c\u53d1\u51fd\u6570&#xff0c;\u8fd9\u6837\u53ef\u4ee5\u5b9e\u65f6\u54cd\u5e94\u4e32\u53e3\u6570\u636e\u3002 <\/p>\n<h4> 4.2.2 TCP\u5230\u4e32\u53e3\u7684\u6570\u636e\u8f6c\u53d1 <\/h4>\n<p> \u4e0e\u4e32\u53e3\u5230TCP\u76f8\u53cd&#xff0c;TCP\u5230\u4e32\u53e3\u7684\u6570\u636e\u8f6c\u53d1\u9700\u8981\u5c06\u63a5\u6536\u5230\u7684TCP\u6570\u636e\u53d1\u9001\u5230\u4e32\u53e3\u3002 <\/p>\n<p>void Forward_TCPToSerial() {<br \/>\n    char buffer[1024];<br \/>\n    int bytes_received &#061; recv(new_socket, buffer, 1024, 0);<\/p>\n<p>    for (int i &#061; 0; i &lt; bytes_received; i&#043;&#043;) {<br \/>\n        USART_SendData(USART1, buffer[i]);<br \/>\n        \/\/ \u7b49\u5f85\u53d1\u9001\u5b8c\u6210<br \/>\n        while(USART_GetFlagStatus(USART1, USART_FLAG_TC) &#061;&#061; RESET);<br \/>\n    }<br \/>\n}<\/p>\n<p> \u8be5\u8f6c\u53d1\u51fd\u6570\u5468\u671f\u6027\u6267\u884c&#xff0c;\u4ee5\u68c0\u67e5TCP\u5957\u63a5\u5b57\u662f\u5426\u63a5\u6536\u5230\u6570\u636e&#xff0c;\u82e5\u6709&#xff0c;\u5219\u9010\u5b57\u8282\u53d1\u9001\u81f3\u4e32\u53e3\u3002 <\/p>\n<p> \u672c\u7ae0\u4ece\u6570\u636e\u6d41\u5904\u7406\u548c\u6865\u63a5\u7a0b\u5e8f\u7684\u5b9e\u73b0\u4e24\u4e2a\u65b9\u9762\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u4e32\u53e3\u4e0eTCP\u901a\u4fe1\u6865\u63a5\u7684\u5173\u952e\u70b9\u3002\u901a\u8fc7\u6df1\u5165\u89e3\u6790\u5404\u79cd\u673a\u5236&#xff0c;\u5982\u6570\u636e\u63a5\u6536\u4e0e\u53d1\u9001\u3001\u7f13\u51b2\u533a\u7ba1\u7406\u548c\u6d41\u63a7\u5236&#xff0c;\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u5b9e\u73b0&#xff0c;\u672c\u7ae0\u8282\u4e3a\u5b9e\u73b0\u4e00\u4e2a\u7a33\u5b9a\u53ef\u9760\u7684\u4e32\u53e3\u4e0eTCP\u6865\u63a5\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u5168\u9762\u7684\u6307\u5bfc\u3002 <\/p>\n<h2> 5. \u6570\u636e\u540c\u6b65\u4e0e\u9519\u8bef\u5904\u7406 <\/h2>\n<p> \u5728\u6784\u5efa\u4e32\u53e3\u4e0eTCP\u901a\u4fe1\u6865\u63a5\u7a0b\u5e8f\u4e2d&#xff0c;\u6570\u636e\u540c\u6b65\u548c\u9519\u8bef\u5904\u7406\u662f\u4fdd\u8bc1\u901a\u4fe1\u8d28\u91cf\u7684\u5173\u952e\u3002\u672c\u7ae0\u8282\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u901a\u8fc7\u65f6\u95f4\u6233\u3001\u6d88\u606f\u5e8f\u5217\u53f7\u4ee5\u53ca\u6570\u636e\u4e00\u81f4\u6027\u68c0\u67e5\u6765\u5b9e\u73b0\u6570\u636e\u540c\u6b65&#xff0c;\u5e76\u5c06\u8be6\u8ff0\u5982\u4f55\u68c0\u6d4b\u901a\u4fe1\u9519\u8bef\u5e76\u5b9e\u65bd\u6709\u6548\u7684\u6545\u969c\u6062\u590d\u4e0e\u91cd\u8fde\u673a\u5236\u3002 <\/p>\n<h3> 5.1 \u6570\u636e\u540c\u6b65\u673a\u5236 <\/h3>\n<p> \u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u5728\u4e32\u53e3\u548cTCP\u95f4\u4f20\u8f93\u7684\u51c6\u786e\u6027&#xff0c;\u5fc5\u987b\u5b9e\u73b0\u4e00\u4e2a\u7a33\u5b9a\u7684\u6570\u636e\u540c\u6b65\u673a\u5236\u3002\u4ee5\u4e0b\u662f\u5b9e\u73b0\u6570\u636e\u540c\u6b65\u7684\u4e24\u4e2a\u5173\u952e\u6280\u672f\u70b9&#xff1a; <\/p>\n<h4> 5.1.1 \u65f6\u95f4\u6233\u540c\u6b65\u4e0e\u6d88\u606f\u5e8f\u5217\u53f7 <\/h4>\n<p> \u65f6\u95f4\u6233\u540c\u6b65\u662f\u6307\u5728\u6570\u636e\u5305\u4e2d\u52a0\u5165\u53d1\u9001\u65f6\u523b\u7684\u65f6\u95f4\u4fe1\u606f&#xff0c;\u800c\u6d88\u606f\u5e8f\u5217\u53f7\u5219\u662f\u4e3a\u6bcf\u4e2a\u4f20\u8f93\u7684\u6570\u636e\u5305\u5206\u914d\u4e00\u4e2a\u552f\u4e00\u7684\u5e8f\u5217\u53f7\u3002\u8fd9\u6837&#xff0c;\u63a5\u6536\u7aef\u53ef\u4ee5\u6839\u636e\u65f6\u95f4\u6233\u6821\u51c6\u63a5\u6536\u65f6\u95f4\u7684\u5dee\u5f02&#xff0c;\u5e76\u901a\u8fc7\u5e8f\u5217\u53f7\u68c0\u67e5\u6570\u636e\u5305\u7684\u5b8c\u6574\u6027\u548c\u987a\u5e8f\u3002\u793a\u4f8b\u5982\u4e0b&#xff1a; <\/p>\n<p>typedef struct {<br \/>\n    uint64_t timestamp; \/\/ \u65f6\u95f4\u6233&#xff0c;64\u4f4d\u8db3\u591f\u8868\u793a\u5230\u7eb3\u79d2\u7ea7\u522b<br \/>\n    uint32_t sequence_number; \/\/ \u5e8f\u5217\u53f7&#xff0c;\u4fdd\u8bc1\u4f20\u8f93\u7684\u6570\u636e\u5305\u987a\u5e8f\u6027<br \/>\n    \/\/ \u5176\u4ed6\u6570\u636e<br \/>\n} SynchronizedDataPacket;<\/p>\n<h4> 5.1.2 \u6570\u636e\u4e00\u81f4\u6027\u68c0\u67e5 <\/h4>\n<p> \u6570\u636e\u4e00\u81f4\u6027\u68c0\u67e5\u4f9d\u8d56\u4e8e\u6821\u9a8c\u548c\u3001\u54c8\u5e0c\u503c\u7b49\u4fe1\u606f\u3002\u53d1\u9001\u7aef\u5728\u53d1\u9001\u6570\u636e\u524d\u8ba1\u7b97\u6570\u636e\u7684\u6821\u9a8c\u548c&#xff0c;\u5e76\u5728\u63a5\u6536\u7aef\u8fdb\u884c\u9a8c\u8bc1\u3002\u5982\u679c\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u88ab\u7be1\u6539&#xff0c;\u6821\u9a8c\u548c\u5c06\u4e0d\u5339\u914d&#xff0c;\u4ece\u800c\u53d1\u73b0\u6570\u636e\u4e0d\u4e00\u81f4\u3002 <\/p>\n<p>\/\/ \u8ba1\u7b97\u6821\u9a8c\u548c\u7684\u7b80\u5355\u793a\u4f8b<br \/>\nuint16_t calculateChecksum(uint8_t *data, size_t length) {<br \/>\n    uint16_t sum &#061; 0;<br \/>\n    for(size_t i &#061; 0; i &lt; length; i&#043;&#043;) {<br \/>\n        sum &#043;&#061; data[i];<br \/>\n    }<br \/>\n    return sum;<br \/>\n}<\/p>\n<h3> 5.2 \u9519\u8bef\u5904\u7406\u7b56\u7565 <\/h3>\n<p> \u5728\u8fdb\u884c\u4e32\u53e3\u4e0eTCP\u901a\u4fe1\u65f6&#xff0c;\u4e0d\u53ef\u907f\u514d\u5730\u4f1a\u9047\u5230\u5404\u79cd\u9519\u8bef\u3002\u6709\u6548\u7684\u9519\u8bef\u5904\u7406\u7b56\u7565\u4e0d\u4ec5\u53ef\u4ee5\u4fdd\u969c\u901a\u4fe1\u7684\u6301\u7eed\u6027&#xff0c;\u8fd8\u80fd\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63d0\u9ad8\u7cfb\u7edf\u7684\u9c81\u68d2\u6027\u3002 <\/p>\n<h4> 5.2.1 \u901a\u4fe1\u9519\u8bef\u68c0\u6d4b\u4e0e\u544a\u8b66 <\/h4>\n<p> \u901a\u4fe1\u9519\u8bef\u68c0\u6d4b\u6d89\u53ca\u591a\u79cd\u6280\u672f&#xff0c;\u6bd4\u5982CRC\u6821\u9a8c\u3001\u5947\u5076\u6821\u9a8c\u4f4d\u7b49\u3002\u5f53\u68c0\u6d4b\u5230\u9519\u8bef\u65f6&#xff0c;\u7cfb\u7edf\u5e94\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f&#xff0c;\u5e76\u901a\u8fc7\u544a\u8b66\u673a\u5236\u901a\u77e5\u7528\u6237\u6216\u8fd0\u7ef4\u4eba\u5458\u3002 <\/p>\n<p>\/\/ CRC\u6821\u9a8c\u7684\u793a\u4f8b\u4ee3\u7801<br \/>\nuint32_t calculateCRC(uint8_t *data, size_t length) {<br \/>\n    \/\/ CRC\u8ba1\u7b97\u4ee3\u7801&#xff08;\u6b64\u5904\u7701\u7565\u5177\u4f53\u5b9e\u73b0&#xff09;<br \/>\n}<\/p>\n<h4> 5.2.2 \u6545\u969c\u6062\u590d\u4e0e\u91cd\u8fde\u673a\u5236 <\/h4>\n<p> \u6545\u969c\u6062\u590d\u548c\u91cd\u8fde\u673a\u5236\u662f\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u5f53\u7cfb\u7edf\u68c0\u6d4b\u5230\u901a\u4fe1\u4e2d\u65ad\u65f6&#xff0c;\u5e94\u7acb\u5373\u542f\u52a8\u91cd\u8fde\u7b56\u7565&#xff0c;\u5305\u62ec\u91cd\u8fde\u95f4\u9694\u65f6\u95f4\u3001\u91cd\u8fde\u6b21\u6570\u9650\u5236\u7b49\u3002 <\/p>\n<p>\/\/ \u91cd\u8fde\u673a\u5236\u4f2a\u4ee3\u7801\u793a\u4f8b<br \/>\nvoid reconnectProcedure() {<br \/>\n    int retryCount &#061; 0;<br \/>\n    while(retryCount &lt; MAX_RECONNECT_ATTEMPTS) {<br \/>\n        if(establishConnection()) {<br \/>\n            return; \/\/ \u91cd\u8fde\u6210\u529f<br \/>\n        }<br \/>\n        delay(RECONNECT_INTERVAL); \/\/ \u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u91cd\u8bd5<br \/>\n        retryCount&#043;&#043;;<br \/>\n    }<br \/>\n    \/\/ \u91cd\u8fde\u5931\u8d25\u7684\u5904\u7406\u903b\u8f91<br \/>\n}<\/p>\n<p> \u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;\u53ef\u4ee5\u6839\u636e\u9879\u76ee\u7684\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u9519\u8bef\u68c0\u6d4b\u548c\u91cd\u8fde\u7b56\u7565\u3002\u4f8b\u5982&#xff0c;\u5bf9\u4e8e\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u7cfb\u7edf&#xff0c;\u53ef\u4ee5\u91c7\u7528\u8f83\u5feb\u7684\u91cd\u8fde\u95f4\u9694\u548c\u8f83\u5c11\u7684\u91cd\u8fde\u6b21\u6570&#xff1b;\u800c\u5bf9\u4e8e\u5bf9\u6570\u636e\u5b8c\u6574\u6027\u8981\u6c42\u66f4\u9ad8\u7684\u7cfb\u7edf&#xff0c;\u53ef\u4ee5\u589e\u52a0\u91cd\u8fde\u5c1d\u8bd5\u6b21\u6570\u5e76\u5b9e\u73b0\u590d\u6742\u7684\u9519\u8bef\u6821\u9a8c\u548c\u91cd\u53d1\u673a\u5236\u3002 <\/p>\n<p> 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