{"id":1421,"date":"2024-07-01T11:45:42","date_gmt":"2024-07-01T03:45:42","guid":{"rendered":"https:\/\/xujiwei.com\/blog\/?p=1421"},"modified":"2024-07-01T11:45:42","modified_gmt":"2024-07-01T03:45:42","slug":"diy-ch334r-usb-hub","status":"publish","type":"post","link":"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/","title":{"rendered":"\u542c\u4eba\u529d\u5403\u9971\u996d\uff0c\u8bd5\u8bd5CH334R\u6765\u505aUSB 2.0 Hub"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<p class=\"ez-toc-title\">\u6587\u7ae0\u76ee\u5f55<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69dec410f2265\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69dec410f2265\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/#CH334R_%E4%BB%8B%E7%BB%8D\" title=\"CH334R \u4ecb\u7ecd\">CH334R \u4ecb\u7ecd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/#%E5%8E%9F%E7%90%86%E5%9B%BE%E8%AE%BE%E8%AE%A1\" title=\"\u539f\u7406\u56fe\u8bbe\u8ba1\">\u539f\u7406\u56fe\u8bbe\u8ba1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/#PCB_%E8%AE%BE%E8%AE%A1\" title=\"PCB \u8bbe\u8ba1\">PCB \u8bbe\u8ba1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/#PCB_3D_%E6%B8%B2%E6%9F%93%E5%9B%BE\" title=\"PCB 3D \u6e32\u67d3\u56fe\">PCB 3D \u6e32\u67d3\u56fe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/#%E7%84%8A%E6%8E%A5%E8%B0%83%E8%AF%95\" title=\"\u710a\u63a5\u8c03\u8bd5\">\u710a\u63a5\u8c03\u8bd5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/#USB_%E8%AF%BB%E5%86%99%E9%80%9F%E5%BA%A6%E6%B5%8B%E8%AF%95\" title=\"USB \u8bfb\u5199\u901f\u5ea6\u6d4b\u8bd5\">USB \u8bfb\u5199\u901f\u5ea6\u6d4b\u8bd5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/#%E9%A1%B9%E7%9B%AE%E5%BC%80%E6%BA%90%E5%9C%B0%E5%9D%80\" title=\"\u9879\u76ee\u5f00\u6e90\u5730\u5740\">\u9879\u76ee\u5f00\u6e90\u5730\u5740<\/a><\/li><\/ul><\/nav><\/div>\n<p>\u4e4b\u524d\u7528 SL2.1A \u505a\u4e86\u4e2a USB 2.0 Hub\uff0c\u6709\u7f51\u53cb\u8bf4\u4e0d\u5982\u7528 CH334R\uff0c\u552e\u4ef7\u66f4\u4fbf\u5b9c\uff0c\u8fd8\u652f\u6301\u66f4\u9ad8\u7ea7\u7684 MTT\uff0c\u8fd9\u4e0d\u5f97\u9a6c\u4e0a\u4e86\u89e3\u4e00\u4e0b\u3002<\/p>\n<p>\u4e4b\u524d\u4f7f\u7528 SL2.1A \u505a USB Hub \u7684\u6587\u7ae0\u5728\u8fd9\u91cc\uff1a<a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=MzkxMTY0NDg0Ng==&amp;mid=2247484117&amp;idx=1&amp;sn=383b0bf6b9e1e7ae0765cf2d646eecad&amp;chksm=c1184314f66fca0204302fbbce7b2bd3bb654ae6a402b118c91f68aeed771ab2858f91cc7ef7&amp;token=941065535&amp;lang=zh_CN#rd\">\u8fd8\u5728\u82b1\u94b1\u4e70\uff1f5\u5143DIY\u4e00\u4e2a\u56db\u53e3USB 2.0 Hub<\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"CH334R_%E4%BB%8B%E7%BB%8D\"><\/span>CH334R \u4ecb\u7ecd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5728 CH334R \u7684\u6570\u636e\u624b\u518c\u4e2d\u627e\u5230\u5b83\u7684\u4ecb\u7ecd\uff0c\u7684\u786e\u662f\u652f\u6301 MTT \u7684\u3002<\/p>\n<blockquote>\n<p>CH334 \u548c CH335 \u662f\u7b26\u5408 USB2.0 \u534f\u8bae\u89c4\u8303\u7684 4 \u7aef\u53e3 USB HUB \u63a7\u5236\u5668\u82af\u7247\uff0c\u4e0a\u884c\u7aef\u53e3\u652f\u6301 USB2.0 \u9ad8\u901f\u548c \u5168\u901f\uff0c\u4e0b\u884c\u7aef\u53e3\u652f\u6301 USB2.0 \u9ad8\u901f 480Mbps\u3001\u5168\u901f 12Mbps \u548c\u4f4e\u901f 1.5Mbps\u3002\u4e0d\u4f46\u652f\u6301\u4f4e\u6210\u672c\u7684 STT \u6a21\u5f0f(\u5355 \u4e2a TT \u5206\u65f6\u8c03\u5ea6 4 \u4e2a\u4e0b\u884c\u7aef\u53e3)\uff0c\u8fd8\u652f\u6301\u9ad8\u6027\u80fd\u7684 MTT \u6a21\u5f0f(4 \u4e2a TT \u5404\u5bf9\u5e94 1 \u4e2a\u7aef\u53e3\uff0c\u5e76\u53d1\u5904\u7406)\u3002<\/p>\n<\/blockquote>\n<p>\u53e6\u5916\uff0c\u5bf9\u4e8e STT \u548c MTT \u7684\u533a\u522b\uff0c\u6570\u636e\u624b\u518c\u4e2d\u4e5f\u6709\u63d0\u5230\uff1a<\/p>\n<blockquote>\n<p>TT \u5206\u4e3a\u5355\u4e2a TT \u548c\u591a\u4e2a TT \u4e24\u79cd\uff0c\u5373 STT \u548c MTT\uff0cSTT \u662f\u5355\u4e2a TT \u6838\u5206\u65f6\u8c03\u5ea6\u5904\u7406 USB \u4e3b\u673a\u4e0b\u53d1\u81f3 \u6240\u6709\u4e0b\u884c\u7aef\u53e3\u7684\u4e8b\u52a1\uff0cMTT \u6307\u591a\u4e2a TT \u5e76\u884c\uff0c\u662f 4 \u4e2a TT \u6838\u5206\u522b\u5bf9\u5e94\u5e76\u5b9e\u65f6\u5904\u7406\u4e00\u4e2a\u4e0b\u884c\u7aef\u53e3\u7684\u4e8b\u52a1\uff0c \u56e0\u6b64 MTT \u53ef\u4ee5\u4e3a\u5404\u4e0b\u884c\u7aef\u53e3\u7684\u63a5\u5165\u8bbe\u5907\u63d0\u4f9b\u66f4\u6ee1\u7684\u5e26\u5bbd\uff0c\u66f4\u597d\u7684\u652f\u6301\u591a\u7aef\u53e3\u5927\u6570\u636e\u91cf\u7684\u5e76\u53d1\u4f20\u8f93\u3002<\/p>\n<\/blockquote>\n<p>\u987a\u4fbf\u95ee\u4e86\u4e0b AI\uff0c\u8bf4\u662f MTT \u66f4\u9002\u5408\u9ad8\u5bc6\u5ea6\u8bbe\u5907\u8fde\u63a5 \ud83d\ude03<\/p>\n<blockquote>\n<p>MTT \u8bbe\u8ba1\u9002\u5408\u8fde\u63a5\u5927\u91cf\u4f4e\u901f\u548c\u5168\u901f\u8bbe\u5907\u7684\u60c5\u51b5\uff0c\u5982\u96c6\u7ebf\u5668\u9700\u8981\u8fde\u63a5\u591a\u4e2a\u5916\u8bbe\u65f6\uff0cMTT \u80fd\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u8868\u73b0\u3002<\/p>\n<\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"%E5%8E%9F%E7%90%86%E5%9B%BE%E8%AE%BE%E8%AE%A1\"><\/span>\u539f\u7406\u56fe\u8bbe\u8ba1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u76f8\u6bd4\u4f7f\u7528 SL2.1A\uff0c\u4f7f\u7528 CH334R \u6ca1\u6709\u4ec0\u4e48\u5927\u7684\u53d8\u52a8\uff0c\u4e3b\u8981\u53d8\u66f4\u7684\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>CH334R \u6ca1\u6709\u4e86 VDD18<\/li>\n<li>CH334R \u7684 VDD33 \u52a0\u4e86\u4e00\u4e2a 100nF \u7684\u53bb\u8026\u7535\u5bb9<\/li>\n<li>CH334R \u7684 RESET# \u5f15\u811a\u4e0d\u9700\u8981\u4f7f\u7528<\/li>\n<\/ul>\n<p>\u8fd9\u4e2a\u9879\u76ee\u8fd8\u662f\u7ee7\u7eed\u4f7f\u7528\u5609\u7acb\u521b EDA \u8bbe\u8ba1\u7684\uff0c\u6211\u89c9\u5f97\u5b83\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u6700\u5927\u7684\u597d\u5904\u5c31\u662f\u5e9e\u5927\u7684\u5728\u7ebf\u5143\u4ef6\u5e93\u4e86\uff0c\u53ef\u4ee5\u76f4\u63a5\u8ddf\u7acb\u521b\u5546\u57ce\u5bf9\u63a5\uff0c\u76f4\u63a5\u5728\u5546\u57ce\u770b\u5230\u5b9e\u7269\uff0c\u539f\u7406\u56fe\u548c\u5c01\u88c5\u4e00\u822c\u90fd\u662f\u73b0\u6210\u7684\uff0c\u7701\u53bb\u597d\u591a\u9ebb\u70e6\u4e8b\u3002<\/p>\n<p><img src=\"https:\/\/xujiwei.com\/blog\/wp-content\/uploads\/2024\/06\/diy-ch334r-usb-hub-1.png\" alt=\"diy-ch334r-usb-hub-1\" style=\"width:100%\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"PCB_%E8%AE%BE%E8%AE%A1\"><\/span>PCB \u8bbe\u8ba1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>CH334R \u91c7\u7528 QSOP-16 \u5c01\u88c5\uff0c\u6bd4 SL2.1A \u7684 SOP-16 \u5c01\u88c5\u9762\u79ef\u8fd8\u5c0f\u4e00\u4e9b\uff0c\u5728\u539f\u6765\u7684\u4f4d\u7f6e\u76f4\u63a5\u653e CH334R \u8db3\u591f\u7528\u4e86\u3002<\/p>\n<p><img src=\"https:\/\/xujiwei.com\/blog\/wp-content\/uploads\/2024\/06\/diy-ch334r-usb-hub-2.png\" alt=\"diy-ch334r-usb-hub-2\" style=\"width:100%;\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"PCB_3D_%E6%B8%B2%E6%9F%93%E5%9B%BE\"><\/span>PCB 3D \u6e32\u67d3\u56fe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u611f\u89c9 PCB \u8fd8\u662f\u53ef\u4ee5\u518d\u7cbe\u7b80\u4e00\u70b9\u7684\uff0c\u4e0d\u8fc7\u4e3a\u4e86\u76f4\u63a5\u7528\u4e4b\u524d\u8bbe\u8ba1\u7684\u5916\u58f3\uff0c\u8fd8\u662f\u4e0d\u6539 PCB \u7684\u677f\u6846\u5927\u5c0f\u4e86\u3002<\/p>\n<p><img src=\"https:\/\/xujiwei.com\/blog\/wp-content\/uploads\/2024\/06\/diy-ch334r-usb-hub-3.png\" alt=\"diy-ch334r-usb-hub-3\" style=\"width:100%;\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E7%84%8A%E6%8E%A5%E8%B0%83%E8%AF%95\"><\/span>\u710a\u63a5\u8c03\u8bd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u8fd9\u6b21\u7528\u4e86\u5609\u7acb\u521b\u7684\u84dd\u8272\u963b\u710a\u6cb9\u58a8\uff0c\u770b\u8d77\u6765\u8fd8\u662f\u4e0d\u9519\u7684\u3002\u53e6\u5916\u56e0\u4e3a\u81ea\u5df1 DIY \u7684\uff0c\u5077\u5de5\u51cf\u6599\u7701\u4e86\u7535\u6e90\u6307\u793a\u706f \ud83d\ude48\u3002<\/p>\n<p><img src=\"https:\/\/xujiwei.com\/blog\/wp-content\/uploads\/2024\/06\/diy-ch334r-usb-hub-4.jpg\" alt=\"diy-ch334r-usb-hub-4\" style=\"width:100%;\" \/><\/p>\n<p>\u5237\u9521\u818f\u7528\u4e86\u4e4b\u524d\u4ecb\u7ecd\u8fc7\u7684\u725b\u76ae\u7eb8\u94a2\u7f51\uff0c\u6709\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u987a\u4fbf\u4e86\u89e3\u4e00\u4e0b \ud83d\ude03<\/p>\n<ul>\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=MzkxMTY0NDg0Ng==&amp;mid=2247483708&amp;idx=1&amp;sn=d17d61c82b969f49d896a95ed5c13cb3&amp;chksm=c11840fdf66fc9eb354b17672c9795cdf749974bac5a58291927db6ffa04f8e0061167de5f57&amp;token=941065535&amp;lang=zh_CN#rd\">\u5c06\u8282\u7701\u8fdb\u884c\u5230\u5e95\uff0c\u4f7f\u7528\u6fc0\u5149\u96d5\u523b\u673a\u548c\u725b\u76ae\u7eb8 DIY SMT \u94a2\u7f51<\/a><\/li>\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=MzkxMTY0NDg0Ng==&amp;mid=2247484034&amp;idx=1&amp;sn=4e1fd959b24fb975cef89abb15b77f23&amp;chksm=c1184343f66fca559fe300a93beca5352582c4cff6fd722f606da66553b55e4c8c5347ab8fff&amp;token=941065535&amp;lang=zh_CN#rd\">\u4e00\u4e2a\u5f00\u6e90\u5c0f\u94a2\u7f51\u4e1d\u5370\u53f0\u9879\u76ee\u4f7f\u7528\u4f53\u9a8c<\/a><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"USB_%E8%AF%BB%E5%86%99%E9%80%9F%E5%BA%A6%E6%B5%8B%E8%AF%95\"><\/span>USB \u8bfb\u5199\u901f\u5ea6\u6d4b\u8bd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5b9e\u6d4b\u4e86\u4e00\u4e0b\u8bfb\u5199\u901f\u5ea6\uff0c\u8ddf SL2.1A \u5dee\u8ddd\u597d\u50cf\u4e0d\u5927\uff0c\u53ef\u80fd\u9700\u8981\u591a\u63d2\u51e0\u4e2a\u8bbe\u5907\u6765\u6d4b\u8bd5\u5dee\u8ddd\u4f1a\u660e\u663e\u4e00\u70b9\uff1f<\/p>\n<p><img src=\"https:\/\/xujiwei.com\/blog\/wp-content\/uploads\/2024\/06\/diy-ch334r-usb-hub-5.jpg\" alt=\"diy-ch334r-usb-hub-5\" style=\"zoom:50%;\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E9%A1%B9%E7%9B%AE%E5%BC%80%E6%BA%90%E5%9C%B0%E5%9D%80\"><\/span>\u9879\u76ee\u5f00\u6e90\u5730\u5740<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u9879\u76ee\u786c\u4ef6\u76f8\u5173\u8d44\u6599\u5df2\u7ecf\u5728\u7acb\u521b\u5f00\u6e90\u5e73\u53f0\u5f00\u653e\u3002<\/p>\n<p>CH334R USB Hub \u9879\u76ee\u5730\u5740\uff1a <a href=\"https:\/\/oshwhub.com\/wandaeda\/ji-yu-ch334r-de-usb-hub\">https:\/\/oshwhub.com\/wandaeda\/ji-yu-ch334r-de-usb-hub<\/a><\/p>\n<p>\u5982\u679c\u9879\u76ee\u4e0d\u53ef\u89c1\uff0c\u53ef\u80fd\u662f\u9879\u76ee\u5728\u7b49\u5f85\u5ba1\u6838\uff0c\u7a0d\u7b49\u5373\u53ef\u3002<\/p>\n<p>\u5916\u58f3\u6a21\u578b STL \u6587\u4ef6\u53ef\u4ee5\u5728 SL2.1A \u9879\u76ee\u4e2d\u627e\u5230\uff1a <a href=\"https:\/\/oshwhub.com\/wandaeda\/sl2-1a-usb-hub\">https:\/\/oshwhub.com\/wandaeda\/sl2-1a-usb-hub<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e4b\u524d\u7528 SL2.1A \u505a\u4e86\u4e2a USB 2.0 Hub\uff0c\u6709\u7f51\u53cb\u8bf4\u4e0d\u5982\u7528 CH334 &hellip;<\/p>\n<p class=\"read-more\"><a href=\"https:\/\/xujiwei.com\/blog\/2024\/07\/diy-ch334r-usb-hub\/\">\u7ee7\u7eed\u9605\u8bfb &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":1419,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[402],"tags":[418,415,416,370,391,386],"_links":{"self":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/posts\/1421"}],"collection":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/comments?post=1421"}],"version-history":[{"count":0,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/posts\/1421\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/media\/1419"}],"wp:attachment":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/media?parent=1421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/categories?post=1421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/tags?post=1421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}