{"id":114,"date":"2016-05-12T11:23:10","date_gmt":"2016-05-12T03:23:10","guid":{"rendered":"http:\/\/www.lnzdl.com\/blog\/?p=114"},"modified":"2016-05-12T11:23:10","modified_gmt":"2016-05-12T03:23:10","slug":"usb-2-0-%e6%8f%90%e9%80%9f","status":"publish","type":"post","link":"http:\/\/www.lnzdl.com\/blog\/usb-2-0-%e6%8f%90%e9%80%9f\/","title":{"rendered":"USB 2.0 \u63d0\u901f"},"content":{"rendered":"

\u867d\u7136Intel\u548cAMD\u914d\u5907USB 3.0\u63a7\u5236\u5668\u7684\u4e3b\u677f\u5df2\u7ecf\u5927\u91cf\u4e0a\u5e02\uff0c\u4f46\u5bf9\u4e8e\u5df2\u7ecf\u9009\u62e9\u4e86\u53ea\u6709USB 2.0\u7684\u4e3b\u677f\u7684\u7528\u6237\u6765\u8bf4\uff0c\u7528USB 2.0\u95ea\u5b58\u3001\u79fb\u52a8\u786c\u76d8\u62f7\u8d1d\u5927\u6587\u4ef6\u65f6\uff0c\u770b\u7740\u90a3\u8717\u725b\u822c\u7684\u8fdb\u5ea6\u6761\uff0c\u6709\u6728\u6709\u79cd\u4e0d\u8010\u70e6\u7684\u611f\u89c9\u554a\uff1f\u90a3\u4e48\u5feb\u6765\u770b\u770b\uff0c\u63d0\u901f\u5176\u5b9e\u5f88\u7b80\u5355\u3002
USB 2.0\u4e3a\u5565\u8fbe\u4e0d\u523060MB\/s\uff1f
\u5927\u5bb6\u90fd\u77e5\u9053USB 2.0\u7684\u7406\u8bba\u5e26\u5bbd\u662f480Mbps\uff0c\u4e5f\u5c31\u662f60MB\/s\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u5b9e\u9645\u4f7f\u7528\u4e2d\u6211\u4eec\u4f1a\u53d1\u73b0\u8fd9\u4e2a\u7406\u8bba\u901f\u5ea6\u662f\u5751\u7239\u7684\uff0c\u957f\u671f\u4ee5\u6765USB 2.0\u6700\u9ad8\u5b9e\u9645\u4f20\u8f93\u901f\u5ea6\u88ab\u9650\u5236\u572830MB\/s\u5de6\u53f3\uff0c\u53ea\u80fd\u8fbe\u5230\u7406\u8bba\u5e26\u5bbd\u7684\u4e00\u534a\u3002\u8fd9\u662f\u7531\u4e8e\u843d\u540e\u7684\u534f\u8bae\u548c\u7f16\u7801\u65b9\u5f0f\u9020\u6210\u7684\u3002
USB 2.0\u91c7\u7528\u7684\u662f\u4f20\u7edf\u7684Bulk-Only Transport(BOT)\u534f\u8bae\uff0c\u7531\u4e8e\u6ca1\u6709\u8fdb\u884c\u6539\u5584\uff0c\u968f\u7740\u76ee\u524d\u9ad8\u901f\u5b58\u50a8\u8bbe\u5907\u7684\u51fa\u73b0\uff0cBOT\u534f\u8bae\u963b\u788dUSB\u4f20\u8f93\u901f\u7387\u7684\u95ee\u9898\u5df2\u7ecf\u663e\u73b0\u51fa\u6765\u3002\u800c\u76ee\u524d\u7684USB 3.0\u65b0\u589e\u4e86USB Attached SCSI Protocol\uff08UASP\uff09\u534f\u8bae\uff0c\u65b0\u589e\u4e86\u4e24\u7ec4\u6570\u636e\u603b\u7ebf\uff0c\u652f\u6301\u591a\u547d\u4ee4\u5e76\u53d1\u6267\u884c\u548cNCQ\u961f\u5217\u529f\u80fd\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u53d1\u6325\u51fa5Gbps\u7684\u9ad8\u901f\u5e26\u5bbd\u4f18\u52bf\u3002
\u53e6\u5916\uff0cUSB 2.0\u4f7f\u7528\u4e86NRZI\uff08Non-Return-to-Zero Inverted\uff09\u7f16\u7801\u65b9\u5f0f\uff0c\u5b83\u662f\u57fa\u4e8e\u4e32\u884c\u4f20\u8f93\u6a21\u5f0f\uff0c\u4f20\u8f93\u8fde\u7eed\u76840\u30011\u5b57\u7b26\u4e32\uff0c\u7531\u4e8e\u5176\u4e2d\u9700\u8981\u5f3a\u5236\u63d20\u4ee5\u4fdd\u6301\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u9891\u7387\u540c\u6b65\u4f1a\u9020\u6210USB 2.0\u4f20\u8f93\u5e26\u5bbd\u7684\u6d6a\u8d39\u3002\u800cUSB 3.0\u91c7\u7528\u4e86\u65f6\u4e0b\u6d41\u884c\u76848b\/10b\u7f16\u7801\u65b9\u5f0f\uff0c\u6709\u6548\u6570\u636e\u5229\u7528\u7387\u4e3a80%\uff0c\u4e5f\u5c31\u662fUSB 3.0\u7684\u6709\u6548\u6570\u636e\u4f20\u8f93\u5e26\u5bbd\u4e3a500MB\/s\u3002
\u5c0f\u8865\u4e01\u4e3aUSB 2.0\u5927\u63d0\u901f
\u5fae\u8f6f\u76ee\u524d\u653e\u51fa\u4e00\u4e2a\u8865\u4e01\u6765\u63d0\u9ad8USB\u8bbe\u5907\u7684\u8bbf\u95ee\u901f\u5ea6\uff0c\u7531\u4e8e\u5b83\u662f\u4e00\u4e2aHotFix\u70ed\u4fee\u590d\u8865\u4e01\uff0c\u5e76\u6ca1\u6709\u4f5c\u4e3a\u5e38\u89c4\u8865\u4e01\u968f\u7cfb\u7edf\u81ea\u52a8\u66f4\u65b0\uff0c\u56e0\u6b64\u6211\u4eec\u5e73\u65f6\u4e5f\u5c31\u4f53\u4f1a\u4e0d\u5230\u5b83\u7684\u4f5c\u7528\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u81ea\u5df1\u6765\u624b\u52a8\u4e0b\u8f7d\u5b89\u88c5\u3002
\u4ece\u5fae\u8f6f\u5b98\u65b9\u4e0b\u8f7dWindows6.1-KB2581464\u8865\u4e01\uff0c\u89e3\u538b\u540e\u5b89\u88c5\u3002\u5149\u5b89\u88c5\u8865\u4e01\u8fd8\u4e0d\u884c\uff0c\u8fd8\u9700\u8981\u624b\u52a8\u5bf9\u6ce8\u518c\u8868\u8fdb\u884c\u4e00\u4e9b\u4fee\u6539\uff0c\u5c06USB 2.0\u5b58\u50a8\u8bbe\u5907\u7684\u6700\u5927\u4f20\u8f93\u503c\u4ece\u9ed8\u8ba4\u768464KB\u589e\u52a0\u52302MB\uff0c\u8fd9\u6837\u624d\u80fd\u8ba9\u5b83\u7684\u901f\u5ea6\u6709\u6240\u63d0\u5347\u3002
\u9996\u5148\u9700\u8981\u5c06\u5b58\u50a8\u8bbe\u5907\u7684INF\u8bbe\u5907\u4fe1\u606f\u6dfb\u52a0\u5230\u6ce8\u518c\u8868\u4e2d\u3002\u5728\u8bbe\u5907\u7ba1\u7406\u5668\u4e2d\u7684\u78c1\u76d8\u9a71\u52a8\u5668\u4e2d\u627e\u5230\u5f53\u524d\u7684USB 2.0\u5b58\u50a8\u8bbe\u5907\uff0c\u53f3\u51fb\u5b83\u9009\u62e9\u201c\u5c5e\u6027\u201d\uff0c\u5207\u6362\u5230\u201c\u8be6\u7ec6\u4fe1\u606f\u201d\u9009\u9879\u5361\u3002\u5728\u5c5e\u6027\u4e0b\u62c9\u83dc\u5355\u4e2d\uff0c\u9009\u62e9\u201c\u7236\u7cfb\u201d\uff0c\u8fd9\u65f6\u5728\u201c\u503c\u201d\u7684\u5bf9\u8bdd\u6846\u4e2d\u5c31\u4f1a\u51fa\u73b0\u4e00\u4e32\u5b57\u7b26(\u5982\u56fe1)\u3002\u5176\u4e2dVID_xxxx&PID_xxxx\u5b57\u7b26\u5c31\u662fUSB 2.0\u5b58\u50a8\u8bbe\u5907\u552f\u4e00\u7684INF\u8bbe\u5907\u6807\u8bc6\uff0c\u4f8b\u5982VID_090C&PID_1000\uff0c\u5373090C1000\u3002
\"USB
\u8fd0\u884cregedit\uff0c\u6253\u5f00\u6ce8\u518c\u8868\u7f16\u8f91\u5668\uff0c\u4f9d\u6b21\u70b9\u51fb\u5c55\u5f00HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\usbstor\u3002\u5728usbstor\u4e0b\u6709\u51e0\u4e2a\u5b50\u9879\u76ee\uff0c\u65b0\u5efa\u4e00\u4e2a\u540d\u4e3a\u201c090C1000\u201d\u7684\u9879\uff0c\u5e76\u9009\u4e2d\u5b83\uff0c\u7136\u540e\u5728\u7a97\u53e3\u53f3\u8fb9\u7684\u7a7a\u767d\u5904\u53f3\u51fb\u65b0\u5efa\u4e00\u4e2a\u540d\u4e3a\u201cMaximumTransferLength\u201d\u7684DWORD\u503c\uff0c\u7136\u540e\u53cc\u51fb\uff0c\u628a\u5b83\u7684\u503c\u6539\u4e3a001fffe0\uff08\u5982\u56fe2\uff0c\u5341\u8fdb\u5236\u6570\u503c\u4e3a2097120\uff0c\u4e5f\u5c31\u662f2MB\uff09\u3002\u4fdd\u5b58\u540e\u91cd\u542f\u7cfb\u7edf\u3002 <\/p>\n

\"USB <\/p>\n

\u5b9e\u9645\u6d4b\u8bd5\u6548\u679c
\u6211\u4eec\u7528\u91d1\u58eb\u987fDataTraveler 16GB\u95ea\u5b58\u8fdb\u884c\u6253\u8865\u4e01\u524d\u540e\u7684\u5bf9\u6bd4\u6d4b\u8bd5\uff0c\u9996\u5148\u8fd0\u884cATTO Disk Benchmark\uff0c\u5728\u9ed8\u8ba4\u914d\u7f6e\u4e0b\uff0c\u8bfb\u5199\u901f\u5ea6\u5206\u522b\u4e3a34.9MB\/s\u548c28MB\/s\uff0c\u5b89\u88c5\u8865\u4e01\u540e\u8bfb\u5199\u901f\u5ea6\u90fd\u51fa\u73b0\u4e86\u663e\u8457\u7684\u589e\u52a0\uff0c\u6700\u9ad8\u8bfb\u53d6\u8fbe\u5230\u4e8643.2MB\/s\uff0c\u5199\u5165\u901f\u5ea6\u4e5f\u4e3a34.6MB\/s\u3002\u63a5\u7740\u7528AS SSD\u6d4b\u8bd5\u6301\u7eed\u8bfb\u5199\u901f\u5ea6\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8bfb\u53d6\u901f\u5ea6\u4e3a29.4MB\/s\uff0c\u5199\u5165\u901f\u5ea6\u53ea\u670925.1MB\/s\uff0c\u5b89\u88c5\u8865\u4e01\u540e\uff0c\u8bfb\u5199\u901f\u5ea6\u5206\u522b\u63d0\u5347\u81f342.9MB\/s\u548c33.6MB\/s\u3002
\u867d\u7136\u8fd9\u4e9b\u901f\u7387\u5728USB 3.0\u4e0b\u7b97\u662f\u5c0f\u513f\u79d1\uff0c\u4f46\u662f\u5bf9\u4e8e\u90a3\u4e9bUSB 2.0\u8001\u7528\u6237\u6765\u8bf4\u5728\u4e0d\u5347\u7ea7USB 3.0\u7684\u524d\u63d0\u4e0b\u83b7\u5f9740MB\/s\u4ee5\u4e0a\u7684\u8bfb\u53d6\u4f20\u8f93\u901f\u5ea6\uff0c\u76f8\u5bf9\u9ed8\u8ba4\u73af\u5883\u8fd8\u662f\u6709\u4e0d\u5c0f\u7684\u7a81\u7834\uff0c\u80fd\u591f\u8282\u7ea6\u4e0d\u5c11\u62f7\u8d1d\u6587\u4ef6\u7684\u65f6\u95f4\u3002
\u5199\u5728\u6700\u540e
\u5bf9\u4e8e\u4ecd\u5728\u4f7f\u7528USB 2.0\u8bbe\u5907\u7684\u7528\u6237\u800c\u8a00\uff0c\u4e3a\u5176\u52a0\u901f\u80fd\u4e3a\u6570\u636e\u4f20\u8f93\u8282\u7ea6\u4e0d\u5c11\u7684\u65f6\u95f4\uff0c\u5728\u4e0d\u5347\u7ea7\u7684\u60c5\u51b5\u4e0b\u514d\u8d39\u83b7\u5f97\u4f20\u8f93\u6027\u80fd\u7684\u63d0\u5347\u4e5f\u662f\u4e00\u4ef6\u4e0d\u9519\u7684\u4e8b\u3002\u5f53\u7136\u8fd9\u79cd\u52a0\u901f\u6a21\u5f0f\u4e5f\u9002\u7528\u4e8eUSB 3.0\uff0c\u63d0\u5347\u5176\u4f20\u8f93\u6027\u80fd\u3002USB 3.0\u4e5f\u57fa\u4e8eBOT\u4f20\u8f93\u534f\u8bae\uff0c\u4f46\u662f\u57fa\u4e8e5Gbps\u9ad8\u5e26\u5bbd\uff0c\u53ea\u6709\u4f7f\u7528SSD\u8fd9\u6837\u7684\u9ad8\u901f\u8bbe\u5907\uff0c\u52a0\u901f\u524d\u540e\u7684\u4f20\u8f93\u901f\u5ea6\u5dee\u5f02\u624d\u4f1a\u6bd4\u8f83\u660e\u663e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u867d\u7136Intel\u548cAMD\u914d\u5907USB 3.0\u63a7\u5236\u5668\u7684\u4e3b\u677f\u5df2\u7ecf\u5927\u91cf\u4e0a\u5e02\uff0c\u4f46\u5bf9\u4e8e\u5df2\u7ecf\u9009\u62e9\u4e86\u53ea\u6709USB 2.0\u7684\u4e3b\u677f\u7684\u7528\u6237\u6765\u8bf4\uff0c\u7528USB 2.0\u95ea\u5b58\u3001\u79fb\u52a8\u786c\u76d8\u62f7\u8d1d\u5927\u6587\u4ef6\u65f6\uff0c\u770b\u7740\u90a3\u8717\u725b\u822c\u7684\u8fdb\u5ea6\u6761\uff0c\u6709\u6728\u6709\u79cd\u4e0d\u8010\u70e6\u7684\u611f\u89c9\u554a\uff1f\u90a3\u4e48\u5feb\u6765\u770b\u770b\uff0c\u63d0\u901f\u5176\u5b9e\u5f88\u7b80\u5355\u3002USB 2.0\u4e3a\u5565\u8fbe\u4e0d\u523060MB\/s\uff1f\u5927\u5bb6\u90fd\u77e5\u9053USB 2.0\u7684\u7406\u8bba\u5e26\u5bbd\u662f480Mbps\uff0c\u4e5f\u5c31\u662f60MB\/s\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u5b9e\u9645\u4f7f\u7528\u4e2d\u6211\u4eec\u4f1a\u53d1\u73b0\u8fd9\u4e2a\u7406\u8bba\u901f\u5ea6\u662f\u5751 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/posts\/114"}],"collection":[{"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/comments?post=114"}],"version-history":[{"count":1,"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/posts\/114\/revisions"}],"predecessor-version":[{"id":115,"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/posts\/114\/revisions\/115"}],"wp:attachment":[{"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/media?parent=114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/categories?post=114"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.lnzdl.com\/blog\/wp-json\/wp\/v2\/tags?post=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}