{"id":162,"date":"2025-01-23T17:15:32","date_gmt":"2025-01-23T09:15:32","guid":{"rendered":"https:\/\/logicj.com\/?p=162"},"modified":"2025-02-19T14:36:52","modified_gmt":"2025-02-19T06:36:52","slug":"fpga-upd","status":"publish","type":"post","link":"https:\/\/logicj.com\/index.php\/2025\/01\/23\/fpga-upd\/","title":{"rendered":"FPGA\u5b9e\u73b0UDP\u534f\u8bae"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-\u57fa\u7840\u77e5\u8bc6\"><strong>\u57fa\u7840\u77e5\u8bc6<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u4ee5\u592a\u7f51\u7b80\u4ecb\"><strong>\u4ee5\u592a\u7f51\u7b80\u4ecb<\/strong><\/h3>\n\n\n\n<p>\u4ee5\u592a\u7f51\u662f\u73b0\u5b9e\u4e16\u754c\u4e2d\u6700\u666e\u904d\u7684\u4e00\u79cd\u8ba1\u7b97\u673a\u7f51\u7edc\u3002\u4ee5\u592a\u7f51\u6709\u4e24\u7c7b\uff1a\u7b2c\u4e00\u7c7b\u662f\u7ecf\u5178\u4ee5\u592a\u7f51\uff0c\u7b2c\u4e8c\u7c7b\u662f\u4ea4\u6362\u5f0f\u4ee5\u592a\u7f51\uff0c\u4f7f\u7528\u4e86\u4e00\u79cd\u79f0\u4e3a\u4ea4\u6362\u673a\u7684\u8bbe\u5907\u8fde\u63a5\u4e0d\u540c\u7684\u8ba1\u7b97\u673a\u3002\u7ecf\u5178\u4ee5\u592a\u7f51\u662f\u4ee5\u592a\u7f51\u7684\u539f\u59cb\u5f62\u5f0f\uff0c\u8fd0\u884c\u901f\u5ea6\u4ece3~10 Mbps\u4e0d\u7b49\uff1b\u800c\u4ea4\u6362\u5f0f\u4ee5\u592a\u7f51\u6b63\u662f\u5e7f\u6cdb\u5e94\u7528\u7684\u4ee5\u592a\u7f51\uff0c\u53ef\u8fd0\u884c\u5728100\u30011000\u548c10000Mbps\u90a3\u6837\u7684\u9ad8\u901f\u7387\uff0c\u5206\u522b\u4ee5\u5feb\u901f\u4ee5\u592a\u7f51\u3001\u5343\u5146\u4ee5\u592a\u7f51\u548c\u4e07\u5146\u4ee5\u592a\u7f51\u7684\u5f62\u5f0f\u5448\u73b0\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-tcp-ip\u534f\u8bae\"><strong>TCP\/IP\u534f\u8bae<\/strong><\/h3>\n\n\n\n<p>TCP\/IP\uff08Transmission Control Protocol\/Internet Protocol\uff0c\u4f20\u8f93\u63a7\u5236\u534f\u8bae\/\u7f51\u9645\u534f\u8bae\uff09\u662f\u6307\u80fd\u591f\u5728\u591a\u4e2a\u4e0d\u540c\u7f51\u7edc\u95f4\u5b9e\u73b0\u4fe1\u606f\u4f20\u8f93\u7684\u534f\u8bae\u7c07\u3002TCP\/IP\u534f\u8bae\u4e0d\u4ec5\u4ec5\u6307\u7684\u662fTCP \u548cIP\u4e24\u4e2a\u534f\u8bae\uff0c\u800c\u662f\u6307\u4e00\u4e2a\u7531FTP\u3001SMTP\u3001TCP\u3001UDP\u3001IP\u7b49\u534f\u8bae\u6784\u6210\u7684\u534f\u8bae\u7c07\uff0c \u53ea\u662f\u56e0\u4e3a\u5728TCP\/IP\u534f\u8bae\u4e2dTCP\u534f\u8bae\u548cIP\u534f\u8bae\u6700\u5177\u4ee3\u8868\u6027\uff0c\u6240\u4ee5\u88ab\u79f0\u4e3aTCP\/IP\u534f\u8bae\u3002<\/p>\n\n\n\n<p>TCP\/IP\u534f\u8bae\u662fInternet\u6700\u57fa\u672c\u7684\u534f\u8bae,\u5176\u4e2d\u5e94\u7528\u5c42\u7684\u4e3b\u8981\u534f\u8bae\u6709Telnet\u3001FTP\u3001SMTP\u7b49\uff0c\u662f\u7528\u6765\u63a5\u6536\u6765\u81ea\u4f20\u8f93\u5c42\u7684\u6570\u636e\u6216\u8005\u6309\u4e0d\u540c\u5e94\u7528\u8981\u6c42\u4e0e\u65b9\u5f0f\u5c06\u6570\u636e\u4f20\u8f93\u81f3\u4f20\u8f93\u5c42\uff1b\u4f20\u8f93\u5c42\u7684\u4e3b\u8981\u534f\u8bae\u6709UDP\u3001TCP\uff0c\u662f\u4f7f\u7528\u8005\u4f7f\u7528\u5e73\u53f0\u548c\u8ba1\u7b97\u673a\u4fe1\u606f\u7f51\u5185\u90e8\u6570\u636e\u7ed3\u5408\u7684\u901a\u9053\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u4e0e\u6570\u636e\u5171\u4eab\uff1b\u7f51\u7edc\u5c42\u7684\u4e3b\u8981\u534f\u8bae\u6709ICMP\u3001IP\u3001IGMP\uff0c\u4e3b\u8981\u8d1f\u8d23\u7f51\u7edc\u4e2d\u6570\u636e\u5305\u7684\u4f20\u9001\u7b49\uff1b\u800c\u7f51\u7edc\u8bbf\u95ee\u5c42\uff0c\u4e5f\u53eb\u7f51\u7edc\u63a5\u53e3\u5c42\u6216\u6570\u636e\u94fe\u8def\u5c42\uff0c\u4e3b\u8981\u534f\u8bae\u6709ARP\u3001RARP\uff0c\u4e3b\u8981\u529f\u80fd\u662f\u63d0\u4f9b\u94fe\u8def\u7ba1\u7406\u9519\u8bef\u68c0\u6d4b\u3001\u5bf9\u4e0d\u540c\u901a\u4fe1\u5a92\u4ecb\u6709\u5173\u4fe1\u606f\u7ec6\u8282\u95ee\u9898\u8fdb\u884c\u6709\u6548\u5904\u7406\u7b49\u3002\u5176\u7ed3\u6784\u4e0eOSI\u53c2\u8003\u6a21\u578b\u5173\u7cfb\u5982\u56fe1\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1005\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946512-image1-1024x1005.png\" alt=\"\" class=\"wp-image-232\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946512-image1-1024x1005.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946512-image1-300x295.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946512-image1-768x754.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946512-image1.png 1328w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe1<\/figcaption><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u6570\u636e\u7ed3\u6784\"><strong>\u6570\u636e\u7ed3\u6784<\/strong><\/h3>\n\n\n\n<p>\u5728\u5b9e\u73b0UDP\u534f\u8bae\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u6e05\u695a\u7684\u77e5\u9053\u6570\u636e\u662f\u4ece\u90a3\u4e00\u5c42\uff0c\u4ee5\u54ea\u79cd\u683c\u5f0f\u8fdb\u5165FPGA\u7684\uff0c\u4ee5\u53ca\u6211\u4eec\u5728\u4f7f\u7528\u4e00\u4e9bIP\u6838\u4e4b\u540e\u80fd\u591f\u83b7\u5f97\u7684\u6570\u636e\u7ed3\u6784\u662f\u4ec0\u4e48\u6837\u7684\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"254\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946510-image2-1024x254.png\" alt=\"\" class=\"wp-image-231\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946510-image2-1024x254.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946510-image2-300x75.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946510-image2-768x191.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946510-image2-1536x382.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946510-image2-2048x509.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe2<\/figcaption><\/figure><\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"h-mac\u5c42\"><strong>MAC\u5c42<\/strong><\/h4>\n\n\n\n<p>\u94fe\u8def\u5c42\uff0c\u53c8\u79f0MAC\u5c42\u3002MAC\u7684\u5168\u79f0\u4e3aMedium Access Control\uff0c\u5373\u5a92\u4f53\u8bbf\u95ee\u63a7\u5236\uff0c\u4e3b\u8981\u6709\u4e24\u4e2a\u529f\u80fd\uff0c\u5bfb\u5740\u548c\u63a7\u5236\u3002\u4ee5\u592a\u7f51\u6280\u672f\u7684\u6b63\u5f0f\u6807\u51c6\u662fIEEE 802.3\uff0c\u5b83\u89c4\u5b9a\u4e86\u4ee5\u592a\u7f51\u4f20\u8f93\u6570\u636e\u7684\u5e27\u7ed3\u6784\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4ee5\u592a\u7f51MAC\u5c42\u7406\u89e3\u6210\u9ad8\u901f\u516c\u8def\uff0c\u6211\u4eec\u5fc5\u987b\u9075\u5faa\u5b83\u7684\u89c4\u5219\u624d\u80fd\u5728\u4e0a\u9762\u901a\u884c\u3002\u4ee5\u592a\u7f51MAC\u5c42\u5e27\u683c\u5f0f\u5982\u56fe3\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"267\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946508-image3-1024x267.png\" alt=\"\" class=\"wp-image-230\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946508-image3-1024x267.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946508-image3-300x78.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946508-image3-768x200.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946508-image3-1536x401.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946508-image3.png 1902w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe3<\/figcaption><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u524d\u5bfc\u7801\uff08Preamble\uff09\uff1a<\/strong>\u4e3a\u4e86\u5b9e\u73b0\u5e95\u5c42\u6570\u636e\u7684\u6b63\u786e\u9610\u8ff0\uff0c\u7269\u7406\u5c42\u4f7f\u75287\u4e2a\u5b57\u8282\u540c\u6b65\u7801\uff080\u548c1\u4ea4\u66ff\uff0855-55-55-55-55-55-55\uff09\uff09\u5b9e\u73b0\u6570\u636e\u7684\u540c\u6b65\u3002<\/li>\n\n\n\n<li><strong>\u5e27\u8d77\u59cb\u754c\u5b9a\u7b26\uff08SFD\uff0cStart Frame Delimiter\uff09\uff1a<\/strong>\u4f7f\u75281\u4e2a\u5b57\u8282\u7684SFD\uff08\u56fa\u5b9a\u503c\u4e3a0xd5\uff09\u6765\u8868\u793a\u4e00\u5e27\u7684\u5f00\u59cb\uff0c\u5373\u540e\u9762\u7d27\u8ddf\u7740\u4f20\u8f93\u7684\u5c31\u662f\u4ee5\u592a\u7f51\u7684\u5e27\u5934\u3002<\/li>\n\n\n\n<li><strong>\u76ee\u7684MAC\u5730\u5740\uff1a<\/strong>\u5373\u63a5\u6536\u7aef\u7269\u7406MAC\u5730\u5740\uff0c\u5360\u75286\u4e2a\u5b57\u8282\u3002MAC\u5730\u5740\u4ece\u5e94\u7528\u4e0a\u53ef\u5206\u4e3a\u5355\u64ad\u5730\u5740\u3001\u7ec4\u64ad\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\u3002\u5355\u64ad\u5730\u5740\uff1a\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u6700\u4f4e\u4f4d\u4e3a0\uff0c\u6bd4\u598200-00-00-11-11-11\uff0c\u4e00\u822c\u7528\u4e8e\u6807\u5fd7\u552f\u4e00\u7684\u8bbe\u5907\uff1b\u7ec4\u64ad\u5730\u5740\uff1a\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u6700\u4f4e\u4f4d\u4e3a1\uff0c\u6bd4\u598201-00-00-11-11-11\uff0c\u4e00\u822c\u7528\u4e8e\u6807\u5fd7\u540c\u5c5e\u4e00\u7ec4\u7684\u591a\u4e2a\u8bbe\u5907\uff1b\u5e7f\u64ad\u5730\u5740\uff1a\u6240\u670948bit\u5168\u4e3a1\uff0c\u5373FF-FF-FF-FF-FF-FF\uff0c\u5b83\u7528\u4e8e\u6807\u5fd7\u540c\u4e00\u7f51\u6bb5\u4e2d\u7684\u6240\u6709\u8bbe\u5907\u3002<\/li>\n\n\n\n<li><strong>\u6e90MAC\u5730\u5740\uff1a<\/strong>\u5373\u53d1\u9001\u7aef\u7269\u7406MAC\u5730\u5740\uff0c\u5360\u75286\u4e2a\u5b57\u8282\u3002<\/li>\n\n\n\n<li><strong>\u957f\u5ea6\/\u7c7b\u578b\uff1a<\/strong>\u4e0a\u56fe\u4e2d\u7684\u957f\u5ea6\/\u7c7b\u578b\u5177\u6709\u4e24\u4e2a\u610f\u4e49\uff0c\u5f53\u8fd9\u4e24\u4e2a\u5b57\u8282\u7684\u503c\u5c0f\u4e8e1536\uff08\u5341\u516d\u8fdb\u5236\u4e3a0x0600\uff09\u65f6\uff0c\u4ee3\u8868\u8be5\u4ee5\u592a\u7f51\u4e2d\u6570\u636e\u6bb5\u7684\u957f\u5ea6\uff1b\u5982\u679c\u8fd9\u4e24\u4e2a\u5b57\u8282\u7684\u503c\u5927\u4e8e1536\uff0c\u5219\u8868\u793a\u8be5\u4ee5\u592a\u7f51\u4e2d\u7684\u6570\u636e\u5c5e\u4e8e\u54ea\u4e2a\u4e0a\u5c42\u534f\u8bae\uff0c\u4f8b\u59820x0800\u4ee3\u8868IP\u534f\u8bae\uff08\u7f51\u9645\u534f\u8bae\uff09\u30010x0806\u4ee3\u8868ARP\u534f\u8bae\uff08\u5730\u5740\u89e3\u6790\u534f\u8bae\uff09\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\uff1a<\/strong>\u4ee5\u592a\u7f51\u4e2d\u7684\u6570\u636e\u6bb5\u957f\u5ea6\u6700\u5c0f46\u4e2a\u5b57\u8282\uff0c\u6700\u59271500\u4e2a\u5b57\u8282\u3002\u6700\u5927\u503c1500\u79f0\u4e3a\u4ee5\u592a\u7f51\u7684\u6700\u5927\u4f20\u8f93\u5355\u5143\uff08MTU\uff0cMaximum Transmission Unit\uff09\uff0c\u4e4b\u6240\u4ee5\u9650\u5236\u6700\u5927\u4f20\u8f93\u5355\u5143\u662f\u56e0\u4e3a\u5728\u591a\u4e2a\u8ba1\u7b97\u673a\u7684\u6570\u636e\u5e27\u6392\u961f\u7b49\u5f85\u4f20\u8f93\u65f6\uff0c\u5982\u679c\u67d0\u4e2a\u6570\u636e\u5e27\u592a\u5927\u7684\u8bdd\uff0c\u90a3\u4e48\u5176\u5b83\u6570\u636e\u5e27\u7b49\u5f85\u7684\u65f6\u95f4\u5c31\u4f1a\u52a0\u957f\uff0c\u5bfc\u81f4\u4f53\u9a8c\u53d8\u5dee\uff0c\u8fd9\u5c31\u50cf\u4e00\u4e2a\u5341\u5b57\u8def\u53e3\u7684\u7ea2\u7eff\u706f\uff0c\u4f60\u53ef\u4ee5\u8ba9\u7eff\u706f\u6301\u7eed\u4eae\u4e00\u5c0f\u65f6\uff0c\u4f46\u662f\u7b49\u7ea2\u706f\u7684\u4eba\u4e00\u5b9a\u4e0d\u613f\u610f\u7684\u3002\u53e6\u5916\u8fd8\u8981\u8003\u8651\u7f51\u7edcI\/O\u63a7\u5236\u5668\u7f13\u5b58\u533a\u8d44\u6e90\u4ee5\u53ca\u7f51\u7edc\u6700\u5927\u7684\u627f\u8f7d\u80fd\u529b\u7b49\u56e0\u7d20\uff0c\u56e0\u6b64\u6700\u5927\u4f20\u8f93\u5355\u5143\u662f\u7531\u5404\u79cd\u7efc\u5408\u56e0\u7d20\u51b3\u5b9a\u7684\u3002\u4e3a\u4e86\u907f\u514d\u589e\u52a0\u989d\u5916\u7684\u914d\u7f6e\uff0c\u901a\u5e38\u4ee5\u592a\u7f51\u7684\u6709\u6548\u6570\u636e\u5b57\u6bb5\u5c0f\u4e8e1500\u4e2a\u5b57\u8282\u3002<\/li>\n\n\n\n<li><strong>\u5e27\u68c0\u9a8c\u5e8f\u5217\uff08FCS\uff0cFrame Check Sequence\uff09\uff1a<\/strong>\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u7684\u6b63\u786e\u4f20\u8f93\uff0c\u5728\u6570\u636e\u7684\u5c3e\u90e8\u52a0\u5165\u4e864\u4e2a\u5b57\u8282\u7684\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7801\uff08CRC\u6821\u9a8c\uff09\u6765\u68c0\u6d4b\u6570\u636e\u662f\u5426\u4f20\u8f93\u9519\u8bef\u3002CRC\u6570\u636e\u6821\u9a8c\u4ece\u4ee5\u592a\u7f51\u5e27\u5934\u5f00\u59cb\u5373\u4e0d\u5305\u542b\u524d\u5bfc\u7801\u548c\u5e27\u8d77\u59cb\u754c\u5b9a\u7b26\u3002\u901a\u7528\u7684CRC\u6807\u51c6\u6709CRC-8\u3001CRC-16\u3001CRC-32\u3001CRCCCIT\uff0c\u5176\u4e2d\u5728\u7f51\u7edc\u901a\u4fe1\u7cfb\u7edf\u4e2d\u5e94\u7528\u6700\u5e7f\u6cdb\u7684\u662fCRC-32\u6807\u51c6\u3002<\/li>\n<\/ul>\n\n\n\n<p>MAC\u5c42\u6570\u636e\u4e3a\u8fdb\u5165FPGA\u7684\u6700\u539f\u59cb\u7684\u6570\u636e\u3002\u663e\u7136\u5982\u679c\u6211\u4eec\u76f4\u63a5\u5bf9MAC\u5c42\u7684\u6570\u636e\u8fdb\u884c\u64cd\u4f5c\uff0c\u7531\u4e8e\u9700\u8981\u4e32\u5e76\u8f6c\u6362\u7b49\u64cd\u4f5c\uff0c\u4f1a\u6781\u5927\u589e\u52a0\u6211\u4eec\u7684\u5de5\u4f5c\u91cf\u3002\u800cXilinx\u5b98\u65b9\u4e5f\u63d0\u4f9b\u4e86\u8f83\u4e3a\u5b9e\u7528\u7684IP\u6838\u4f9b\u6211\u4eec\u4f7f\u7528\u3002\u5982<a href=\"https:\/\/docs.amd.com\/r\/en-US\/pg210-25g-ethernet\" target=\"_blank\"  rel=\"nofollow\" >[10G\/25G Ethernet Subusystem]<\/a>\u3002\u8be5IP\u6838\u8f93\u51fa\u7684\u6570\u636e\u4e3a<strong>\u76ee\u7684MAC\u5730\u5740+\u6e90MAC\u5730\u5740+\u957f\u5ea6\/\u7c7b\u578b+\u6570\u636e<\/strong>\u3002\u56e0\u6b64\u5f53\u6211\u4eec\u4ece\u8be5IP\u6838\u83b7\u53d6\u6570\u636e\u540e\uff0c\u6839\u636e\u5e27\u957f\u5ea6\uff0c\u5373\u53ef\u63d0\u53d6\u5e27\u5185\u90e8\u7684\u6240\u6709\u4fe1\u606f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-ip\u5c42\"><strong>IP\u5c42<\/strong><\/h4>\n\n\n\n<p>\u7f51\u7edc\u5c42\uff0c\u53c8\u79f0IP\u5c42\uff0c\u4f4d\u4e8e\u4ee5\u592a\u7f51MAC\u5e27\u683c\u5f0f\u7684\u6570\u636e\u6bb5\uff0c\u7531IP\u9996\u90e8\u548cIP\u6570\u636e\u6bb5\u7ec4\u6210\u6570\u636e\u62a5\u3002\u6240\u6709\u7684TCP\u3001UDP\u53caICMP\u6570\u636e\u90fd\u4ee5IP\u6570\u636e\u62a5\u683c\u5f0f\u4f20\u8f93\u3002\u6570\u636e\u62a5\u683c\u5f0f\u5982\u56fe4\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"483\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946506-image4-1024x483.png\" alt=\"\" class=\"wp-image-229\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946506-image4-1024x483.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946506-image4-300x142.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946506-image4-768x363.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946506-image4-1536x725.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946506-image4-2048x967.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe4<\/figcaption><\/figure><\/div>\n\n\n<p>&nbsp; &nbsp; <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7248\u672c(Version)\uff1a<\/strong>4\u4f4dIP\u7248\u672c\u53f7\uff0c\u8fd9\u4e2a\u503c\u8bbe\u7f6e\u4e3a\u4e8c\u8fdb\u5236\u76840100\u65f6\u8868\u793aIPv4\uff0c\u8bbe\u7f6e\u4e3a0110\u65f6\u8868\u793aIPv6\u3002<\/li>\n\n\n\n<li><strong>\u9996\u90e8\u957f\u5ea6(IHL, Internet Header Length)\uff1a<\/strong>4\u4f4d\u9996\u90e8\u957f\u5ea6\uff0c\u8868\u793aIP\u9996\u90e8\u4e00\u5171\u6709\u591a\u5c11\u4e2a32\u4f4d\u6570\u636e\u3002\u5728\u6ca1\u6709\u53ef\u9009\u5b57\u6bb5\u65f6\uff0cIP\u9996\u90e8\u957f\u5ea6\u4e3a20\u4e2a\u5b57\u8282\uff0c\u56e0\u6b64\u9996\u90e8\u957f\u5ea6\u7684\u503c\u4e3a5\u3002<\/li>\n\n\n\n<li><strong>\u670d\u52a1\u7c7b\u578b(TOS, Type of service)\uff1a<\/strong> 8\u4f4d\u670d\u52a1\u7c7b\u578b\uff0c\u8be5\u5b57\u6bb5\u88ab\u5212\u5206\u6210\u4e24\u4e2a\u5b50\u5b57\u6bb5\uff1a3\u4f4d\u4f18\u5148\u7ea7\u5b57\u6bb5\u548c4\u4f4dTOS\u5b57\u6bb5\uff0c\u6700\u540e\u4e00\u4f4d\u56fa\u5b9a\u4e3a0\u3002\u670d\u52a1\u7c7b\u578b\u4e3a0\u65f6\u8868\u793a\u4e00\u822c\u670d\u52a1\u3002<\/li>\n\n\n\n<li><strong>\u603b\u957f\u5ea6(Total Length)\uff1a<\/strong>16\u4f4dIP\u6570\u636e\u62a5\u603b\u957f\u5ea6\uff0c\u5305\u62ecIP\u9996\u90e8\u548cIP\u6570\u636e\u90e8\u5206\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\u3002\u6211\u4eec\u5229\u7528IP\u9996\u90e8\u957f\u5ea6\u548cIP\u6570\u636e\u62a5\u603b\u957f\u5ea6\uff0c\u5c31\u53ef\u4ee5\u77e5\u9053IP\u6570\u636e\u62a5\u4e2d\u6570\u636e\u5185\u5bb9\u7684\u8d77\u59cb\u4f4d\u548c\u957f\u5ea6\u3002\u7531\u4e8e\u8be5\u5b57\u6bb5\u957f16bit\uff0c\u6240\u4ee5IP\u6570\u636e\u62a5\u6700\u957f\u53ef\u8fbe65535\u5b57\u8282\u3002\u5c3d\u7ba1\u7406\u8bba\u4e0a\u53ef\u4ee5\u4f20\u8f93\u957f\u8fbe65535\u5b57\u8282\u7684IP\u6570\u636e\u62a5\uff0c\u4f46\u5b9e\u9645\u4e0a\u8fd8\u8981\u8003\u8651\u7f51\u7edc\u7684\u6700\u5927\u627f\u8f7d\u80fd\u529b\u7b49\u56e0\u7d20\u3002<\/li>\n\n\n\n<li><strong>\u6807\u8bc6\u5b57\u6bb5(Identification)\uff1a<\/strong>16\u4f4d\u6807\u8bc6\u5b57\u6bb5\uff0c\u7528\u6765\u6807\u8bc6\u4e3b\u673a\u53d1\u9001\u7684\u6bcf\u4e00\u4efd\u6570\u636e\u62a5\u3002\u901a\u5e38\u6bcf\u53d1\u9001\u4e00\u4efd\u62a5\u6587\u5b83\u7684\u503c\u5c31\u4f1a\u52a01\u3002<\/li>\n\n\n\n<li><strong>\u6807\u5fd7\u5b57\u6bb5(Flags)\uff1a<\/strong>3\u4f4d\u6807\u5fd7\u5b57\u6bb5\uff0c\u7b2c1\u4f4d\u4e3a\u4fdd\u7559\u4f4d\uff1b\u7b2c2\u4f4d\u8868\u793a\u7981\u6b62\u5206\u7247\uff081\u8868\u793a\u4e0d\u5206\u72470\uff1a\u5141\u8bb8\u5206\u7247\uff09\uff1b\u7b2c3\u4f4d\u6807\u8bc6\u66f4\u591a\u5206\u7247\uff08\u9664\u4e86\u6570\u636e\u62a5\u7684\u6700\u540e\u4e00\u4e2a\u5206\u7247\u5916\uff0c\u5176\u5b83\u5206\u7247\u90fd\u4e3a1\uff09\u3002<\/li>\n\n\n\n<li><strong>\u7247\u504f\u79fb(Fragment Offset)\uff1a<\/strong>13\u4f4d\u7247\u504f\u79fb\uff0c\u5728\u63a5\u6536\u65b9\u8fdb\u884c\u6570\u636e\u62a5\u91cd\u7ec4\u65f6\u7528\u6765\u6807\u8bc6\u5206\u7247\u7684\u987a\u5e8f\u3002<\/li>\n\n\n\n<li><strong>\u751f\u5b58\u65f6\u95f4(TTL, Time To Live)\uff1a<\/strong>8\u4f4d\u751f\u5b58\u65f6\u95f4\u5b57\u6bb5\uff0c\u57df\u9632\u6b62\u4e22\u5931\u7684\u6570\u636e\u5305\u5728\u65e0\u4f11\u6b62\u7684\u4f20\u64ad\uff0c\u4e00\u822c\u88ab\u8bbe\u7f6e\u4e3a64\u6216\u8005128\u3002<\/li>\n\n\n\n<li><strong>\u9996\u90e8\u6821\u9a8c\u548c(Header Checksum)\uff1a<\/strong>16\u4f4d\u9996\u90e8\u6821\u9a8c\u548c\uff0c\u8be5\u5b57\u6bb5\u53ea\u6821\u9a8c\u6570\u636e\u62a5\u7684\u9996\u90e8\uff0c\u4e0d\u5305\u542b\u6570\u636e\u90e8\u5206\uff1b\u6821\u9a8cIP\u6570\u636e\u62a5\u5934\u90e8\u662f\u5426\u88ab\u7834\u574f\u3001\u7be1\u6539\u548c\u4e22\u5931\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u6e90IP\u5730\u5740(Source Address)\uff1a<\/strong>32\u4f4d\u6e90IP\u5730\u5740\uff0c\u53d1\u9001\u7aef\u7684IP\u5730\u5740\u3002<\/li>\n\n\n\n<li><strong>\u76ee\u7684IP\u5730\u5740(Destination Address)\uff1a<\/strong>32\u4f4d\u76ee\u7684IP\u5730\u5740\uff0c\u63a5\u6536\u7aef\u7684IP\u5730\u5740\u3002<\/li>\n\n\n\n<li><strong>\u53ef\u9009\u5b57\u6bb5\uff1a<\/strong>\u6570\u636e\u62a5\u4e2d\u7684\u4e00\u4e2a\u53ef\u53d8\u957f\u5ea6\u7684\u53ef\u9009\u4fe1\u606f\uff0c\u9009\u9879\u5b57\u6bb5\u4ee532bit\u4e3a\u754c\uff0c\u4e0d\u8db3\u65f6\u63d2\u5165\u503c\u4e3a0\u7684\u586b\u5145\u5b57\u8282\uff0c\u4fdd\u8bc1IP\u9996\u90e8\u59cb\u7ec8\u662f32bit\u7684\u6574\u6570\u500d\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u9996\u90e8\u6821\u9a8c\u548c\u8ba1\u7b97\u65b9\u6cd5\u5982\u56fe5\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"553\" height=\"1024\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946503-image5-553x1024.png\" alt=\"\" class=\"wp-image-228\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946503-image5-553x1024.png 553w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946503-image5-162x300.png 162w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946503-image5-768x1423.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946503-image5-829x1536.png 829w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946503-image5.png 894w\" sizes=\"(max-width: 553px) 100vw, 553px\" \/><figcaption class=\"wp-element-caption\">\u56fe5<\/figcaption><\/figure><\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"h-udp\u5c42\">UDP\u5c42<\/h4>\n\n\n\n<p>\u7531\u4e8e\u6211\u4eec\u51c6\u5907\u5b9e\u73b0UDP\u534f\u8bae\uff0c\u56e0\u6b64UDP\u5c42\u5bf9\u5e94\u7684OSI\u53c2\u8003\u6a21\u578b\u7684\u5c42\u7ea7\u4e3a\u4f20\u8f93\u5c42\u3002\u5728UDP\u5c42\u4e2d\uff0c\u6570\u636e\u9075\u5faaUDP\u534f\u8bae\u8fdb\u884c\u4f20\u8f93\u3002\u5b9e\u9645\u4e0a\uff0c\u6570\u636e\u662f\u53ef\u4ee5\u76f4\u63a5\u5c01\u88c5\u5728IP\u534f\u8bae\u91cc\u800c\u4e0d\u4f7f\u7528TCP\u3001UDP\u6216\u8005\u5176\u5b83\u4e0a\u5c42\u534f\u8bae\u7684\u3002\u7136\u800c\u5728\u7f51\u7edc\u4f20\u8f93\u4e2d\u540c\u4e00IP\u670d\u52a1\u5668\u9700\u8981\u63d0\u4f9b\u5404\u79cd\u4e0d\u540c\u7684\u670d\u52a1\uff0c\u5404\u79cd\u4e0d\u540c\u7684\u670d\u52a1\u7c7b\u578b\u662f\u4f7f\u7528\u7aef\u53e3\u53f7\u6765\u533a\u5206\u7684\uff0c\u4f8b\u5982\u7528\u4e8e\u6d4f\u89c8\u7f51\u9875\u670d\u52a1\u768480\u7aef\u53e3\uff0c\u7528\u4e8eFTP\uff08\u6587\u4ef6\u4f20\u8f93\u534f\u8bae\uff09\u670d\u52a1\u768421\u7aef\u53e3\u7b49\u3002TCP\u548cUDP\u90fd\u4f7f\u7528\u4e24\u4e2a\u5b57\u8282\u7684\u7aef\u53e3\u53f7\uff0c\u7406\u8bba\u4e0a\u53ef\u4ee5\u8868\u793a\u7684\u8303\u56f4\u4e3a0~65535\uff0c\u8db3\u591f\u6ee1\u8db3\u5404\u79cd\u4e0d\u540c\u7684\u670d\u52a1\u7c7b\u578b\u3002<\/p>\n\n\n\n<p><strong>TCP\u534f\u8bae\u4e3a\u53ef\u9760\u4f20\u8f93\u534f\u8bae\uff0cUDP\u534f\u8bae\u4e3a\u4e0d\u53ef\u9760\u4f20\u8f93\u534f\u8bae\uff0c\u867d\u7136UDP\u65e0\u6cd5\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u548c\u6709\u5e8f\uff0c\u4f46\u662fUDP\u7684\u4f20\u8f93\u901f\u5ea6\u66f4\u5feb\uff0c\u4e14\u6d88\u8017\u7684\u8d44\u6e90\u66f4\u5c11\u3002\u5e76\u4e14\uff0c\u867d\u7136FPGA\u53ef\u4ee5\u5b9e\u73b0TCP\u534f\u8bae\uff0c\u4f46\u662f\u5de5\u4f5c\u91cf\u662f\u6781\u5927\u7684\u3002UDP\u76f8\u8f83\u4e8eTCP\uff0c\u5728FPGA\u7684\u53ef\u5b9e\u73b0\u96be\u5ea6\u4e0a\u5927\u5927\u964d\u4f4e\uff0c\u56e0\u6b64\u53ef\u4ee5\u770b\u5230\u7f51\u4e0a\u7684\u5927\u90e8\u5206\u8d44\u6599\u90fd\u5728\u63cf\u8ff0FPGA\u5982\u4f55\u5b9e\u73b0UDP\u534f\u8bae\uff0c\u800c\u975eTCP\u534f\u8bae\u3002<\/strong><\/p>\n\n\n\n<p>\u4e0b\u56fe\u4e3aUDP\u534f\u8bae\u6570\u636e\u683c\u5f0f\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"307\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946501-image6-1024x307.png\" alt=\"\" class=\"wp-image-227\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946501-image6-1024x307.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946501-image6-300x90.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946501-image6-768x230.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946501-image6-1536x461.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946501-image6-2048x615.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe6<\/figcaption><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6e90\u7aef\u53e3\u53f7\uff1a<\/strong>16\u4f4d\u53d1\u9001\u7aef\u7aef\u53e3\u53f7\uff0c\u7528\u4e8e\u533a\u5206\u4e0d\u540c\u670d\u52a1\u7684\u7aef\u53e3\uff0c\u7aef\u53e3\u53f7\u7684\u8303\u56f4\u4ece0\u523065535\u3002<\/li>\n\n\n\n<li><strong>\u76ee\u7684\u7aef\u53e3\u53f7\uff1a<\/strong>16\u4f4d\u63a5\u6536\u7aef\u7aef\u53e3\u53f7\u3002<\/li>\n\n\n\n<li><strong>UDP\u957f\u5ea6\uff1a<\/strong>16\u4f4dUDP\u957f\u5ea6\uff0c\u5305\u542bUDP\u9996\u90e8\u957f\u5ea6+\u6570\u636e\u957f\u5ea6\uff0c\u5355\u4f4dbyte\u3002<\/li>\n\n\n\n<li><strong>UDP\u6821\u9a8c\u548c\uff1a<\/strong>16\u4f4dUDP\u6821\u9a8c\u548c\u3002UDP\u8ba1\u7b97\u6821\u9a8c\u548c\u7684\u65b9\u6cd5\u548c\u8ba1\u7b97IP\u6570\u636e\u62a5\u9996\u90e8\u6821\u9a8c\u548c\u7684\u65b9\u6cd5\u76f8\u4f3c\uff0c\u9700\u8981\u6821\u9a8c\u7684\u5185\u5bb9\u5305\u542b\uff1aUDP\u4f2a\u9996\u90e8\uff0cUDP\u9996\u90e8\u548cUDP\u6570\u636e\u6bb5\u3002\u5176\u4e2dUDP\u4f2a\u9996\u90e8\u7531\u6e90IP\u5730\u5740\uff0c\u76ee\u7684IP\u5730\u5740\uff0c\u534f\u8bae\u7c7b\u578b\u548cUDP\u957f\u5ea6\u7ec4\u6210\u3002\u5176\u76ee\u7684\u662f\u8ba9UDP\u4e24\u6b21\u68c0\u67e5\u6570\u636e\u662f\u5426\u5df2\u7ecf\u6b63\u786e\u5230\u8fbe\u76ee\u7684\u5730\u3002 &nbsp; <\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-\u7528\u6237\u5c42\"><strong>\u7528\u6237\u5c42<\/strong><\/h4>\n\n\n\n<p>\u7528\u6237\u5c42\u5bf9\u5e94\u7684OSI\u53c2\u8003\u6a21\u578b\u7684\u5c42\u7ea7\u7684\u5e94\u7528\u5c42\u3002\u7528\u6237\u5c42\u7684\u6570\u636e\u6bb5\u4e5f\u662f\u6211\u4eec\u9700\u8981\u7684\u6700\u539f\u59cb\u7684\u6570\u636e\u3002FPGA\u7aef\u53d1\u9001\u6570\u636e\u65f6\uff0c\u539f\u59cb\u6570\u636e\u7ecf\u8fc7\u6253\u5305\u83b7\u5f97UDP\u6570\u636e\u62a5\uff0cUDP\u6570\u636e\u5305\u7ecf\u8fc7\u6253\u5305\u83b7\u5f97IP\u6570\u636e\u62a5\uff0cIP\u6570\u636e\u62a5\u6dfb\u52a0\u5e27\u4fe1\u606f\u5f62\u6210MAC\u5e27\u3002FPGA\u63a5\u6536\u6570\u636e\u65f6\uff0cMAC\u5e27\u89e3\u6790\u51faIP\u6570\u636e\u62a5\uff0cIP\u6570\u636e\u62a5\u89e3\u6790\u51faUDP\u6570\u636e\u62a5\uff0cUDP\u6570\u636e\u62a5\u89e3\u6790\u51fa\u539f\u59cb\u6570\u636e\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-\u7269\u7406\u5c42-\u786c\u4ef6\u77e5\u8bc6\"><strong>\u7269\u7406\u5c42\uff08\u786c\u4ef6\u77e5\u8bc6\uff09<\/strong><\/h4>\n\n\n\n<p>\u7269\u7406\u5c42(PHY)\u5728\u53d1\u9001\u6570\u636e\u7684\u65f6\u5019\uff0c\u63a5\u6536MAC\u53d1\u8fc7\u6765\u7684\u6570\u636e\uff0c\u628a\u5e76\u884c\u6570\u636e\u8f6c\u5316\u4e3a\u4e32\u884c\u6d41\u6570\u636e\uff0c\u6309\u7167\u7269\u7406\u5c42\u7684\u7f16\u7801\u89c4\u5219\u628a\u6570\u636e\u7f16\u7801\u8f6c\u6362\u4e3a\u6a21\u62df\u4fe1\u53f7\u53d1\u9001\u51fa\u53bb\uff0c\u63a5\u6536\u6570\u636e\u65f6\u7684\u6d41\u7a0b\u53cd\u4e4b\u3002PHY\u8fd8\u63d0\u4f9b\u4e86\u548c\u5bf9\u7aef\u8bbe\u5907\u8fde\u63a5\u7684\u91cd\u8981\u529f\u80fd\u5e76\u901a\u8fc7LED\u706f\u663e\u793a\u51fa\u81ea\u5df1\u76ee\u524d\u7684\u8fde\u63a5\u72b6\u6001\u548c\u5de5\u4f5c\u72b6\u6001\u3002\u5f53\u6211\u4eec\u7ed9\u7f51\u5361\u63a5\u5165\u7f51\u7ebf\u7684\u65f6\u5019\uff0cPHY\u82af\u7247\u4e0d\u65ad\u53d1\u51fa\u8109\u51b2\u4fe1\u53f7\u6765\u68c0\u6d4b\u5bf9\u7aef\u662f\u5426\u6709\u8bbe\u5907\uff0c\u5b83\u4eec\u901a\u8fc7\u6807\u51c6\u7684\u201c\u8bed\u8a00\u201d\u4ea4\u6d41\uff0c\u4e92\u76f8\u534f\u5546\u5e76\u786e\u5b9a\u8fde\u63a5\u901f\u5ea6\u3001\u53cc\u5de5\u6a21\u5f0f\u3001\u662f\u5426\u91c7\u7528\u6d41\u63a7\u7b49\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u534f\u5546\u7684\u7ed3\u679c\u662f\u4e24\u4e2a\u8bbe\u5907\u4e2d\u80fd\u540c\u65f6\u652f\u6301\u7684\u6700\u5927\u901f\u5ea6\u548c\u6700\u597d\u7684\u53cc\u5de5\u6a21\u5f0f\u3002\u8fd9\u4e2a\u6280\u672f\u88ab\u79f0\u4e3aAuto Negotiation\uff0c\u5373\u81ea\u52a8\u534f\u5546\u3002\u4ee5\u592a\u7f51MAC\u548cPHY\u4e4b\u95f4\u6709\u4e00\u4e2a\u63a5\u53e3\uff0c\u5e38\u7528\u7684\u63a5\u53e3\u6709MII\u3001RMII\u3001GMII\u3001RGMII\u7b49\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-arp\u534f\u8bae\"><strong>ARP\u534f\u8bae<\/strong><\/h4>\n\n\n\n<p>ARP\uff08Address Resolution Protocol\uff09\uff0c\u5730\u5740\u89e3\u6790\u534f\u8bae\uff0c\u662f\u6839\u636eIP\u5730\u5740\u83b7\u53d6\u7269\u7406\u5730\u5740\u7684\u4e00\u4e2aTCP\/IP\u534f\u8bae\u3002\u5728\u5f00\u59cb\u8fdb\u884c\u7f51\u7edc\u901a\u8baf\u65f6\uff0c\u6e90\u4e3b\u673a\u53ea\u77e5\u9053\u76ee\u7684\u4e3b\u673a\u7684IP\u5730\u5740\uff0c\u786e\u4e0d\u77e5\u9053\u76ee\u7684\u4e3b\u673a\u7684MAC\u5730\u5740\u3002\u56e0\u6b64\uff0c\u5728\u7f51\u7edc\u901a\u8baf\u7684\u4e00\u5f00\u59cb\uff0c\u6e90\u4e3b\u673a\u53d1\u9001\u4fe1\u606f\u65f6\u5c06\u5305\u542b\u76ee\u6807IP\u5730\u5740\u7684ARP\u8bf7\u6c42\u5e7f\u64ad\u5230\u5c40\u57df\u7f51\u7edc\u4e0a\u7684\u6240\u6709\u4e3b\u673a\uff0c\u5e76\u63a5\u6536\u8fd4\u56de\u6d88\u606f\uff0c\u4ee5\u6b64\u786e\u5b9a\u76ee\u6807\u7684\u7269\u7406\u5730\u5740\uff1b\u6536\u5230\u8fd4\u56de\u6d88\u606f\u540e\u5c06\u8be5IP\u5730\u5740\u548c\u7269\u7406\u5730\u5740\u5b58\u5165\u672c\u673aARP\u7f13\u5b58\u4e2d\u5e76\u4fdd\u7559\u4e00\u5b9a\u65f6\u95f4\uff0c\u4e0b\u6b21\u8bf7\u6c42\u65f6\u76f4\u63a5\u67e5\u8be2ARP\u7f13\u5b58\u4ee5\u8282\u7ea6\u8d44\u6e90\u3002\u5176\u5de5\u4f5c\u8fc7\u7a0b\u5982\u56fe7\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"695\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946498-image7-1024x695.png\" alt=\"\" class=\"wp-image-226\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946498-image7-1024x695.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946498-image7-300x204.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946498-image7-768x521.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946498-image7-1536x1042.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946498-image7.png 1718w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe7<\/figcaption><\/figure><\/div>\n\n\n<p>\u4efb\u4f55\u65f6\u5019\uff0c\u5f53\u4e3b\u673a\u9700\u8981\u627e\u51fa\u8fd9\u4e2a\u7f51\u7edc\u4e2d\u7684\u53e6\u4e00\u4e2a\u4e3b\u673a\u7684\u7269\u7406\u5730\u5740\u65f6\uff0c\u5b83\u5c31\u4f1a\u53d1\u9001\u4e00\u4e2aARP\u8bf7\u6c42\u62a5\u6587\uff0c\u8fd9\u4e2a\u62a5\u6587\u5305\u542b\u53d1\u9001\u65b9\u7684MAC\u5730\u5740\u548cIP\u5730\u5740\u4ee5\u53ca\u63a5\u6536\u65b9\u7684IP\u5730\u5740\u3002\u7531\u4e8e\u53d1\u9001\u65b9\u4e0d\u77e5\u9053\u63a5\u6536\u65b9\u7684MAC\u5730\u5740\uff0c\u56e0\u6b64ARP\u8bf7\u6c42\u62a5\u6587\u9700\u8981\u5728\u7f51\u7edc\u5c42\u4e2d\u8fdb\u884c\u5e7f\u64ad\u3002\u5c40\u57df\u7f51\u4e2d\u7684\u6240\u6709\u4e3b\u673a\u90fd\u4f1a\u63a5\u53d7\u5e76\u5904\u7406ARP\u8bf7\u6c42\u62a5\u6587\uff0c\u67e5\u770b\u8bf7\u6c42\u7684IP\u5730\u5740\u662f\u4e0d\u662f\u81ea\u5df1\u7684IP\u5730\u5740\u3002\u5982\u679c\u662f\uff0c\u63a5\u6536\u65b9\u4e3b\u673a\u4f1a\u8fd4\u56de\u4e00\u4e2aARP\u54cd\u5e94\u62a5\u6587\uff0c\u8fd9\u4e2a\u54cd\u5e94\u62a5\u6587\u5305\u542b\u63a5\u6536\u65b9\u7684IP\u5730\u5740\u548cMAC\u5730\u5740\u3002\u7531\u4e8e\u6b64\u65f6\u53cc\u65b9\u7684IP\u5730\u5740\u548cMAC\u5730\u5740\u5747\u5df2\u77e5\uff0c\u56e0\u6b64ARP\u54cd\u5e94\u62a5\u6587\u4ee5\u5355\u64ad\u7684\u5f62\u5f0f\u5728\u7f51\u7edc\u5c42\u4e2d\u4f20\u8f93\u3002ARP\u62a5\u6587\u683c\u5f0f\u5982\u56fe8\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"435\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946496-image8-1024x435.png\" alt=\"\" class=\"wp-image-225\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946496-image8-1024x435.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946496-image8-300x127.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946496-image8-768x326.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946496-image8-1536x652.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946496-image8-2048x869.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe8<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u7cfb\u7edf\u7ed3\u6784\u6846\u56fe\"><strong>\u7cfb\u7edf\u7ed3\u6784\u6846\u56fe<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"360\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946493-image9-1024x360.png\" alt=\"\" class=\"wp-image-224\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946493-image9-1024x360.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946493-image9-300x105.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946493-image9-768x270.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946493-image9-1536x539.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946493-image9-2048x719.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe9<\/figcaption><\/figure><\/div>\n\n\n<p>ETHERNET_TOP\u7cfb\u7edf\u6846\u56fe\u5982\u56fe9\u6240\u793a\u3002Host\u7aef\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\u7ecf\u8fc7ETHERNET\u4e32\u5e76\u8f6c\u6362\u540e\u5f97\u5230MAC\u5c42\u6570\u636e\uff0c\u8be5\u6570\u636e\u7ecf\u8fc7UDP_TOP\u548cARP_TOP\u8fdb\u884c\u89e3\u5305\u5206\u6790\uff0c\u6700\u7ec8\u7531UDP_TOP\u8f93\u51fa\u7528\u6237\u6570\u636e\u3002\u7528\u6237\u6570\u636e\u7ecf\u8fc7UDP_TOP\u8fdb\u884c\u6253\u5305\u5f62\u6210MAC\u5c42\u6570\u636e\uff0c\u8be5\u6570\u636e\u5728DATA_ARB\u5904\u4e0e\u7531ARP_TOP\u8f93\u51fa\u7684ARP\u54cd\u5e94\u6570\u636e\u5305\u8fdb\u884c\u4ef2\u88c1\uff0c\u6700\u7ec8\u8f93\u51fa\u7ed9ETHERNET\u8fdb\u884c\u5e76\u4e32\u8f6c\u6362\u53d1\u9001\u7ed9Host\u7aef\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ETHERNET\uff1a<\/strong>\u7531\u4e8e\u6211\u9700\u8981\u5b9e\u73b010G\u7f51\u53e3\u7684\u901a\u8baf\uff0c\u4e14\u4f7f\u7528\u7684FPGA\u578b\u53f7\u4e3aXCKU06\u3002\u56e0\u6b64\u8be5\u6846\u56fe\u4e2dETHERNET\u6a21\u5757\u4e3axilinx\u5b98\u65b9\u7684[10G\/25G Ethernet Subusystem](https:\/\/docs.amd.com\/r\/en-US\/pg210-25g-ethernet)\uff0c\u5176\u4e3b\u8981\u4f5c\u7528\u4e3a\u4e32\u5e76\u8f6c\u6362\u5e76\u8f93\u51fa\u7528\u6237\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>DATA_ARB\uff1a<\/strong>DATA_ARB\u4e3a\u6570\u636e\u4ef2\u88c1\u529f\u80fd\uff0c\u5176\u4e3b\u8981\u4f5c\u7528\u4e3a\u9009\u901aARP\u6570\u636e\u548cUDP\u6570\u636e\u3002\u5f53\u5904\u4e8eARP\u54cd\u5e94\u72b6\u6001\u65f6\uff0c\u8f93\u51faARP\u6570\u636e\uff0c\u5426\u5219\u8f93\u51faUDP\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>UDP_TOP\uff1a<\/strong>UDP_TOP\u4e3aUDP\u6570\u636e\u5305\u5904\u7406\u6a21\u5757\uff0c\u5176\u4e3b\u8981\u7684\u4f5c\u7528\u4e3a\u65f6\u949f\u57df\u8f6c\u6362\u4ee5\u53ca\u6570\u636e\u6253\u5305\u89e3\u5305\u3002<\/li>\n\n\n\n<li><strong>ARP_TOP\uff1a<\/strong>ARP_TOP\u6a21\u5757\u4e3aARP\u5e94\u7b54\u6a21\u5757\uff0c\u5176\u4e3b\u8981\u4f5c\u7528\u4e3a\u5728\u68c0\u6d4b\u5230Host\u7aef\u7684ARP\u8bf7\u6c42\u540e\uff0c\u8f93\u51fa\u4e00\u4e2aARP\u54cd\u5e94\u6570\u636e\u5305\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u7528\u6237\u53c2\u6570\"><strong>\u7528\u6237\u53c2\u6570<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Name<\/td><td>Description<\/td><\/tr><tr><td>BOARD_MAC<\/td><td>\u7cfb\u7edfMAC\u5730\u5740<\/td><\/tr><tr><td>BOARD_IP<\/td><td>\u7cfb\u7edfIP\u5730\u5740<\/td><\/tr><tr><td>BOARD_UDP<\/td><td>\u7cfb\u7edfUDP\u7aef\u53e3\u53f7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u4fe1\u53f7\u63a5\u53e3\"><strong>\u4fe1\u53f7\u63a5\u53e3<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Name<\/td><td>Bit Width<\/td><td>IO Type<\/td><td>Description<\/td><\/tr><tr><td>sys_clk<\/td><td>1<\/td><td>input<\/td><td>\u7cfb\u7edf\u65f6\u949f<\/td><\/tr><tr><td>sys_rstn<\/td><td>1<\/td><td>input<\/td><td>\u7cfb\u7edf\u590d\u4f4d<\/td><\/tr><tr><td>drp_clk<\/td><td>1<\/td><td>input<\/td><td>Ethernet IP\u6838DRP\u65f6\u949f<\/td><\/tr><tr><td>gt_refclk_p\/n<\/td><td>1<\/td><td>input<\/td><td>Ethernet IP\u6838gt\u53c2\u8003\u65f6\u949f<\/td><\/tr><tr><td>gt_rxp\/n_in<\/td><td>1<\/td><td>input<\/td><td>Ethernet IP\u6838gt\u4fe1\u53f7\u8f93\u5165<\/td><\/tr><tr><td>gt_txp\/n_out<\/td><td>1<\/td><td>output<\/td><td>Ethernet IP\u6838gt\u4fe1\u53f7\u8f93\u51fa<\/td><\/tr><tr><td>gt_disable<\/td><td>1<\/td><td>output<\/td><td>PHY\u4f7f\u80fd\u5f00\u5173\uff0c\u7f6e1\u5173\u95ed<\/td><\/tr><tr><td>axis_din<\/td><td>32b bus<\/td><td>input<\/td><td>AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><tr><td>axis_dout<\/td><td>32b bus<\/td><td>output<\/td><td>AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last,user<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u6a21\u5757\u8bbe\u8ba1\"><strong>\u6a21\u5757\u8bbe\u8ba1<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-udp-top\u6a21\u5757\"><strong>UDP_TOP\u6a21\u5757<\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"805\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946491-image10-1024x805.png\" alt=\"\" class=\"wp-image-223\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946491-image10-1024x805.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946491-image10-300x236.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946491-image10-768x604.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946491-image10.png 1236w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe10<\/figcaption><\/figure><\/div>\n\n\n<p>UDP_TOP\u6a21\u5757\u5185\u90e8\u6846\u56fe\u5982\u56fe10\u6240\u793a\u3002Host\u53d1\u9001\u8fc7\u6765\u7684MAC\u5c42\u6570\u636eaxis_rx_mac\u7ecf\u8fc7UDP_RX\u8fdb\u884c\u89e3\u5305\u83b7\u53d6rx_clk\u4e0b\u7684\u7528\u6237\u6570\u636e\uff0c\u8be5\u7528\u6237\u6570\u636e\u7ecf\u8fc7\u8de8\u65f6\u949f\u57df\u5904\u7406\u8f6c\u6362\u4e3asys_clk\u4e0b\u7684\u6570\u636eaxis_rx_app\u5e76\u8f93\u51fa\u3002FPGA\u5185\u90e8\u5f85\u53d1\u9001\u7684\u7528\u6237\u6570\u636eaxis_tx_app\u7ecf\u8fc7UDP_TX\u8fdb\u884c\u6253\u5305\u83b7\u53d6sys_clk\u4e0b\u7684MAC\u5c42\u6570\u636e\uff0c\u8be5MAC\u5c42\u6570\u636e\u7ecf\u8fc7\u8de8\u65f6\u949f\u57df\u5904\u7406\u8f6c\u6362\u4e3atx_clk\u4e0b\u7684\u6570\u636eaxis_tx_mac\u5e76\u8f93\u51fa\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>UDP_RX\uff1a<\/strong>\u63a5\u6536\u7aefMAC\u5c42\u6570\u636e\u89e3\u5305\u6a21\u5757\uff0c\u8f93\u51farx_clk\u65f6\u949f\u57df\u4e0b\u7684\u7528\u6237\u5c42\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>RX_FIFO\uff1a<\/strong>\u63a5\u6536\u7aef\u7528\u6237\u5c42\u6570\u636e\u8de8\u65f6\u949f\u57df\u5904\u7406\u6a21\u5757\uff0c\u8f93\u51fasys_clk\u65f6\u949f\u57df\u4e0b\u7684\u7528\u6237\u5c42\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>UDP_TX\uff1a<\/strong>\u53d1\u9001\u7aef\u7528\u6237\u5c42\u6570\u636e\u6253\u5305\u6a21\u5757\uff0c\u8f93\u51fasys_clk\u65f6\u949f\u57df\u4e0b\u7684MAC\u5c42\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>TX_FIFO\uff1a<\/strong>\u53d1\u9001\u7aefMAC\u5c42\u6570\u636e\u8de8\u65f6\u949f\u57df\u5904\u7406\u6a21\u5757\uff0c\u8f93\u51fatx_clk\u65f6\u949f\u57df\u4e0b\u7684MAC\u5c42\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<p>UDP_TOP\u6a21\u5757\u7684\u8f93\u5165\u8f93\u51fa\u4fe1\u53f7\u63a5\u53e3\u5982\u4e0b\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Name<\/td><td>Bit Width<\/td><td>IO Type<\/td><td>Description<\/td><\/tr><tr><td>sys_clk<\/td><td>1<\/td><td>input<\/td><td>\u7cfb\u7edf\u65f6\u949f<\/td><\/tr><tr><td>sys_rstn<\/td><td>1<\/td><td>input<\/td><td>\u7cfb\u7edf\u590d\u4f4d<\/td><\/tr><tr><td>rx_clk<\/td><td>1<\/td><td>input<\/td><td>\u63a5\u6536\u7aef\u65f6\u949f<\/td><\/tr><tr><td>rx_rst<\/td><td>1<\/td><td>input<\/td><td>\u63a5\u6536\u7aef\u590d\u4f4d<\/td><\/tr><tr><td>tx_clk<\/td><td>1<\/td><td>input<\/td><td>\u53d1\u9001\u7aef\u65f6\u949f<\/td><\/tr><tr><td>tx_rst<\/td><td>1<\/td><td>input<\/td><td>\u53d1\u9001\u7aef\u590d\u4f4d<\/td><\/tr><tr><td>drp_clk<\/td><td>1<\/td><td>input<\/td><td>Ethernet IP\u6838DRP\u65f6\u949f<\/td><\/tr><tr><td>axis_rx_mac<\/td><td>32b bus<\/td><td>input<\/td><td>\u63a5\u6536\u7aefMAC\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><tr><td>axis_rx_app<\/td><td>32b bus<\/td><td>output<\/td><td>\u63a5\u6536\u7aef\u7528\u6237\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last,user<\/td><\/tr><tr><td>axis_tx_app<\/td><td>32b bus<\/td><td>input<\/td><td>\u53d1\u9001\u7aef\u7528\u6237\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><tr><td>axis_tx_mac<\/td><td>32b bus<\/td><td>output<\/td><td>\u53d1\u9001\u7aefMAC\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-udp-rx\u6a21\u5757\"><strong>UDP_RX\u6a21\u5757<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"435\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946489-image11-1024x435.png\" alt=\"\" class=\"wp-image-222\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946489-image11-1024x435.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946489-image11-300x127.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946489-image11-768x326.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946489-image11-1536x652.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946489-image11-2048x869.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe11<\/figcaption><\/figure><\/div>\n\n\n<p>UDP_RX\u6a21\u5757\u5185\u90e8\u6846\u56fe\u5982\u56fe11\u6240\u793a\u3002MAC\u5c42\u6570\u636eaxis_mac\u7ecf\u8fc7RX_HEADER\u548cRX_ALIGN\u5206\u522b\u8f93\u51fa\u6570\u636e\u5305\u4fe1\u606f\u548c\u5f85\u7f13\u5b58\u7528\u6237\u5c42\u6570\u636e\u3002\u6570\u636e\u5305\u4fe1\u606f\u4e2d\u7684Host\u7aef\u4fe1\u606f\uff08MAC\u5730\u5740\u3001IP\u5730\u5740\u3001UDP\u7aef\u53e3\u53f7\uff09\u88abUDP_RX\u8f93\u51fa\u5230\u5916\u90e8\uff0c\u5176\u4ed6\u7684\u4fe1\u606f\u88ab\u4f20\u8f93\u7ed9IP_CRC\u8fdb\u884cIP\u6821\u9a8c\u3002\u5f85\u7f13\u5b58\u7684\u7528\u6237\u5c42\u6570\u636e\u4e00\u8def\u88ab\u4f20\u51fa\u7ed9UDP_CRC\u6a21\u5757\u8fdb\u884cUDP\u6821\u9a8c\uff0c\u53e6\u4e00\u8def\u88ab\u4f20\u8f93\u7ed9RX_FIFO\u8fdb\u884c\u7f13\u5b58\u5e76\u8f93\u51fa\u6700\u7ec8\u7684\u7528\u6237\u5c42\u6570\u636eaxis_app\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RX_CHECK\uff1a<\/strong>\u8be5\u6a21\u5757\u4e3aUDP_RX\u6a21\u5757\u7684\u6838\u5fc3\u90e8\u5206\u3002\u5176\u4e2d\u5305\u542b\u4e86\u62a5\u5934\u4fe1\u606f\u83b7\u53d6\u6a21\u5757RX_HEADER\u3001\u7528\u6237\u6570\u636e\u83b7\u53d6\u79fb\u4f4d\u6a21\u5757RX_ALIGN\u3001IP\u4fe1\u606f\u6821\u9a8c\u6a21\u5757IP_CRC\u3001UDP\u4fe1\u606f\u6821\u9a8c\u6a21\u5757UDP_CRC\u3002<\/li>\n\n\n\n<li><strong>RX_FIFO\uff1a<\/strong>\u8be5\u6a21\u5757\u7684\u4f5c\u7528\u4e3a\u7f13\u5b58\u7528\u6237\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<p>UDP_RX\u6a21\u5757\u7684\u8f93\u5165\u8f93\u51fa\u4fe1\u53f7\u63a5\u53e3\u5982\u4e0b\u8868\u6240\u793a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Name<\/td><td>Bit Width<\/td><td>IO Type<\/td><td>Description<\/td><\/tr><tr><td>clk<\/td><td>1<\/td><td>input<\/td><td>\u6a21\u5757\u65f6\u949f<\/td><\/tr><tr><td>rstn<\/td><td>1<\/td><td>input<\/td><td>\u6a21\u5757\u590d\u4f4d<\/td><\/tr><tr><td>mac_src<\/td><td>1<\/td><td>output<\/td><td>Host\u7aefMAC\u5730\u5740<\/td><\/tr><tr><td>ip_src<\/td><td>1<\/td><td>output<\/td><td>Host\u7aefip\u5730\u5740<\/td><\/tr><tr><td>udp_src<\/td><td>1<\/td><td>output<\/td><td>Host\u7aefUDP\u7aef\u53e3<\/td><\/tr><tr><td>axis_mac<\/td><td>32b bus<\/td><td>input<\/td><td>\u63a5\u6536\u7aefMAC\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><tr><td>axis_app<\/td><td>32b bus<\/td><td>output<\/td><td>\u63a5\u6536\u7aef\u7528\u6237\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last,user<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-udp-tx\u6a21\u5757\"><strong>UDP_TX\u6a21\u5757<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"713\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946486-image12-1024x713.png\" alt=\"\" class=\"wp-image-221\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946486-image12-1024x713.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946486-image12-300x209.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946486-image12-768x535.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946486-image12-1536x1069.png 1536w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946486-image12.png 1962w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe12<\/figcaption><\/figure><\/div>\n\n\n<p>UDP_TX\u6a21\u5757\u5185\u90e8\u6846\u56fe\u5982\u56fe12\u6240\u793a\u3002\u7528\u6237\u5c42\u6570\u636eaxis_app\u7ecf\u8fc7TX_HEADER\u8ba1\u7b97\u8f93\u51faudp\u957f\u5ea6udp_length\u548cip\u957f\u5ea6ip_total_length\u3002udp\u957f\u5ea6\u548c\u7528\u6237\u5c42\u6570\u636eaxis_app\u5728UDP_CRC\u4e2d\u8fdb\u884cUDP\u6821\u9a8c\u5e76\u8f93\u51fa\u6821\u9a8c\u7ed3\u679cudp_crc\u3002ip\u957f\u5ea6\u548c\u5176\u4ed6\u7684\u62a5\u5934\u4fe1\u606f\u5728IP_CRC\u4e2d\u8fdb\u884cIP\u6821\u9a8c\u5e76\u8f93\u51fa\u6821\u9a8c\u7ed3\u679cip_crc\u3002\u5f53\u6240\u6709\u7684\u6821\u9a8c\u5b8c\u6210\u540e\uff0c\u7f13\u5b58\u5728TX_FIFO\u4e2d\u7684\u7528\u6237\u5c42\u6570\u636e\u88ab\u8bfb\u51fa\uff0c\u8bfb\u51fa\u7684\u6570\u636e\u5728TX_ALIGN\u4e2d\u8fdb\u884c\u6253\u5305\u5e76\u8f93\u51fa\u6700\u7ec8\u7684MAC\u5c42\u6570\u636eaxis_mac\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>TX_FIFO\uff1a<\/strong>\u7528\u6237\u6570\u636e\u7f13\u5b58\u6a21\u5757\uff0c\u7528\u4e8e\u7b49\u5f85\u6821\u9a8c\u5b8c\u6210\u65f6\u7684\u6570\u636e\u7f13\u3002<\/li>\n\n\n\n<li><strong>TX_HEADER\uff1a<\/strong>\u6570\u636e\u62a5\u5934\u4fe1\u606f\u83b7\u53d6\u6a21\u5757\uff0c\u7528\u4e8e\u83b7\u53d6\u8f93\u5165\u7684\u7528\u6237\u6570\u636e\u957f\u5ea6\u548cIP\u603b\u957f\u5ea6\u3002<\/li>\n\n\n\n<li><strong>IP_CRC\uff1a<\/strong>IP\u6821\u9a8c\u6a21\u5757\uff0c\u7528\u4e8e\u83b7\u53d6IP\u6821\u9a8c\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>UDP_CRC\uff1a<\/strong>UDP\u6821\u9a8c\u6a21\u5757\uff0c\u7528\u4e8e\u83b7\u53d6UDP\u6821\u9a8c\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>TX_ALIGN\uff1a<\/strong>\u6570\u636e\u6253\u5305\u6a21\u5757\uff0c\u5c06\u7528\u6237\u5c42\u6570\u636e\u6253\u5305\u6210MAC\u5c42\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<p>UDP_TX\u6a21\u5757\u7684\u8f93\u5165\u8f93\u51fa\u4fe1\u53f7\u63a5\u53e3\u5982\u4e0b\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Name<\/td><td>Bit Width<\/td><td>IO Type<\/td><td>Description<\/td><\/tr><tr><td>clk<\/td><td>1<\/td><td>input<\/td><td>\u6a21\u5757\u65f6\u949f<\/td><\/tr><tr><td>rstn<\/td><td>1<\/td><td>input<\/td><td>\u6a21\u5757\u590d\u4f4d<\/td><\/tr><tr><td>mac_src<\/td><td>1<\/td><td>input<\/td><td>Host\u7aefMAC\u5730\u5740<\/td><\/tr><tr><td>ip_src<\/td><td>1<\/td><td>input<\/td><td>Host\u7aefip\u5730\u5740<\/td><\/tr><tr><td>udp_src<\/td><td>1<\/td><td>input<\/td><td>Host\u7aefUDP\u7aef\u53e3<\/td><\/tr><tr><td>axis_app<\/td><td>32b bus<\/td><td>input<\/td><td>\u53d1\u9001\u7aef\u7528\u6237\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><tr><td>axis_mac<\/td><td>32b bus<\/td><td>output<\/td><td>\u53d1\u9001\u7aefMAC\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-arp-top\u6a21\u5757\"><strong>ARP_TOP\u6a21\u5757<\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"623\" src=\"http:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946484-image13-1024x623.png\" alt=\"\" class=\"wp-image-220\" srcset=\"https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946484-image13-1024x623.png 1024w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946484-image13-300x183.png 300w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946484-image13-768x467.png 768w, https:\/\/logicj.com\/wp-content\/uploads\/2025\/02\/1739946484-image13.png 1236w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u56fe13<\/figcaption><\/figure><\/div>\n\n\n<p>ARP_TOP\u6a21\u5757\u5185\u90e8\u6846\u56fe\u5982\u56fe\u6240\u793a\u3002Host\u53d1\u9001\u8fc7\u6765\u7684MAC\u5c42\u6570\u636eaxis_rx_mac\u7ecf\u8fc7ARP_RX\u8fdb\u884c\u89e3\u5305\uff0c\u82e5\u68c0\u6d4b\u5230\u8be5\u5305\u4e3aARP\u8bf7\u6c42\u5305\uff0c\u5219\u62c9\u9ad8arp_vld\u4fe1\u53f7\u5e76\u8f93\u51faHost\u7aef\u7684MAC\u5730\u5740pc_mac\u548cIP\u5730\u5740pc_ip\u3002\u5f53ARP_TX\u68c0\u6d4b\u5230arp_vld\u4fe1\u53f7\u540e\uff0c\u5f00\u59cb\u751f\u6210\u5e76\u8f93\u51faARP\u54cd\u5e94\u5305\u6570\u636eaxis_tx_mac\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ARP_RX\uff1a<\/strong>ARP\u8bf7\u6c42\u6570\u636e\u5305\u89e3\u6790\u6a21\u5757\uff0c\u7528\u4e8e\u83b7\u53d6\u6709\u6548\u7684ARP\u6570\u636e\u5305\u5e76\u8f93\u51faHost\u7aef\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>ARP_TX\uff1a<\/strong>ARP\u54cd\u5e94\u6570\u636e\u5305\u751f\u6210\u6a21\u5757\uff0c\u7528\u4e8e\u751f\u6210\u5e76\u8f93\u51fa\u6709\u6548\u7684ARP\u54cd\u5e94\u6570\u636e\u5305\u3002<\/li>\n<\/ul>\n\n\n\n<p>ARP_TOP\u6a21\u5757\u7684\u8f93\u5165\u8f93\u51fa\u4fe1\u53f7\u63a5\u53e3\u5982\u4e0b\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Name<\/td><td>Bit Width<\/td><td>IO Type<\/td><td>Description<\/td><\/tr><tr><td>rx_clk<\/td><td>1<\/td><td>input<\/td><td>\u63a5\u6536\u7aef\u65f6\u949f<\/td><\/tr><tr><td>rx_rst<\/td><td>1<\/td><td>input<\/td><td>\u63a5\u6536\u7aef\u590d\u4f4d<\/td><\/tr><tr><td>tx_clk<\/td><td>1<\/td><td>input<\/td><td>\u53d1\u9001\u7aef\u65f6\u949f<\/td><\/tr><tr><td>tx_rst<\/td><td>1<\/td><td>input<\/td><td>\u53d1\u9001\u7aef\u590d\u4f4d<\/td><\/tr><tr><td>axis_rx_mac<\/td><td>32b bus<\/td><td>input<\/td><td>\u63a5\u6536\u7aefMAC\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><tr><td>axis_tx_mac<\/td><td>32b bus<\/td><td>output<\/td><td>\u53d1\u9001\u7aefMAC\u5c42AXI-Stream\u603b\u7ebf\u6570\u636e\uff0c\u5305\u542bkeep,last<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u5f53FPGA\u8d44\u6e90\u7d27\u5f20\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u4e0d\u4f7f\u7528ARP_TOP\u6a21\u5757\u3002\u53ef\u4ee5\u901a\u8fc7\u7ba1\u7406\u5458\u8fd0\u884c`arp -s IP\u5730\u5740 MAC\u5730\u5740`\u6307\u4ee4\u8bbe\u7f6e\u9759\u6001ARP\u7f13\u5b58\uff0c\u6765\u5b9e\u73b0Host\u7aef\u4e0e\u8be5\u7cfb\u7edf\u4e4b\u95f4\u7684\u901a\u8baf\u3002<\/mark><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u7ed3\u8bed\"><strong>\u7ed3\u8bed<\/strong><\/h2>\n\n\n\n<p>\u7ec8\u4e8e\u8bb2\u5b8c\u4e86\u8fd9\u90e8\u5206\uff0c\u671f\u95f4\u65ad\u65ad\u7eed\u7eed\u66f4\u65b0\u4e86\u597d\u51e0\u6b21\uff0c\u5b9e\u5728\u662f\u9879\u76ee\u4e8b\u60c5\u592a\u591a\u3002\u5173\u4e8e\u8fd9\u90e8\u5206\u7684\u4ee3\u7801\u5df2\u7ecf\u5728\u5b9e\u9645\u5de5\u7a0b\u4e2d\u4f7f\u7528\u5e76\u6d4b\u8bd5\u4e86\u4e00\u6bb5\u65f6\u95f4\uff0c\u5e76\u65e0\u592a\u5927\u7684\u95ee\u9898\u3002\u540e\u7eed\u8ba1\u5212\u4f1a\u5bf9\u7f51\u7edc\u534f\u8bae\u7684\u77e5\u8bc6\u8fdb\u884c\u6269\u5c55\u8865\u5145\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"\u5728\u5f53\u524d\u6570\u5b57\u4e16\u754c\u4e2d\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u5b9e\u73b0UDP\u534f\u8bae\u6210\u4e3a\u4e86FPGA\u8bbe\u8ba1\u7684\u5173\u952e\u6311\u6218\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u4ee5\u592a\u7f51\u548cTCP\/IP\u534f\u8bae\u7684\u57fa\u7840\u77e5\u8bc6\uff0c\u8be6\u7ec6\u89e3\u6790UDP\u534f\u8bae\u7684\u6570\u636e\u7ed3\u6784\u53ca\u5176\u5728FPGA\u4e2d\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002\u901a\u8fc7\u4e86\u89e3\u5404\u5c42\u534f\u8bae\u7684\u529f\u80fd\u4e0e\u6570\u636e\u6d41\u8f6c\uff0c\u8bfb\u8005\u5c06\u638c","protected":false},"author":1,"featured_media":232,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[5],"tags":[16],"class_list":["post-162","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fpga","tag-udp"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>FPGA\u5b9e\u73b0UDP\u534f\u8bae - LogicJ<\/title>\n<meta name=\"description\" content=\"\u5728\u73b0\u4ee3\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\uff0c\u4e86\u89e3UDP\u534f\u8bae\u7684\u5b9e\u73b0\u5bf9\u4e8e\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u6548\u7387\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u4e3b\u8981\u5185\u5bb9\u4e3aFPGA\u5b9e\u73b0UDP\u534f\u8bae\uff0c\u6df1\u5165\u63a2\u8ba8\u901a\u8fc7FPGA\u5b9e\u73b0UDP\u534f\u8bae\u7684\u8fc7\u7a0b\uff0c\u4ece\u4ee5\u592a\u7f51\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u5230TCP\/IP\u534f\u8bae\u7684\u6784\u6210\uff0c\u518d\u5230UDP\u7684\u6570\u636e\u5c01\u88c5\u4e0e\u8f6c\u53d1\uff0c\u5168\u9762\u89e3\u6790\u6570\u636e\u5728\u7f51\u7edc\u4e2d\u7684\u6d41\u52a8\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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