{"id":74981,"date":"2026-02-11T02:33:49","date_gmt":"2026-02-10T18:33:49","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/74981.html"},"modified":"2026-02-11T02:33:49","modified_gmt":"2026-02-10T18:33:49","slug":"%e5%ae%9e%e6%88%98%e6%a1%88%e4%be%8b%ef%bc%9alinux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%b2%e5%8f%a3%e8%ae%be%e5%a4%87%ef%bc%88-dev-ttyusb%ef%bc%89%e9%a2%91%e7%b9%81%e6%96%ad%e5%bc%80%e7%9a%84%e7%a1%ac","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/74981.html","title":{"rendered":"\u5b9e\u6218\u6848\u4f8b\uff1aLinux \u670d\u52a1\u5668\u4e32\u53e3\u8bbe\u5907\uff08\/dev\/ttyUSB\uff09\u9891\u7e41\u65ad\u5f00\u7684\u786c\u4ef6\u6392\u67e5\u4e0e\u9a71\u52a8\u4f18\u5316"},"content":{"rendered":"<h4>Linux \u670d\u52a1\u5668\u4e32\u53e3\u8bbe\u5907&#xff08;\/dev\/ttyUSB&#xff09;\u9891\u7e41\u65ad\u5f00\u7684\u786c\u4ef6\u6392\u67e5\u4e0e\u9a71\u52a8\u4f18\u5316\u5b9e\u6218\u6848\u4f8b<\/h4>\n<p>\u5728Linux\u670d\u52a1\u5668\u4e2d&#xff0c;\u4e32\u53e3\u8bbe\u5907\u5982\/dev\/ttyUSB\u9891\u7e41\u65ad\u5f00\u662f\u5e38\u89c1\u95ee\u9898&#xff0c;\u901a\u5e38\u7531\u786c\u4ef6\u6545\u969c\u6216\u9a71\u52a8\u95ee\u9898\u5f15\u8d77\u3002\u672c\u6848\u4f8b\u5c06\u57fa\u4e8e\u771f\u5b9e\u7ecf\u9a8c&#xff0c;\u63d0\u4f9b\u7ed3\u6784\u6e05\u6670\u7684\u6392\u67e5\u4e0e\u4f18\u5316\u6b65\u9aa4&#xff0c;\u5e2e\u52a9\u60a8\u9010\u6b65\u89e3\u51b3\u3002\u6574\u4e2a\u8fc7\u7a0b\u5206\u4e3a\u786c\u4ef6\u6392\u67e5\u548c\u9a71\u52a8\u4f18\u5316\u4e24\u90e8\u5206&#xff0c;\u786e\u4fdd\u53ef\u9760\u6027\u548c\u53ef\u64cd\u4f5c\u6027\u3002<\/p>\n<h5>\u6b65\u9aa41&#xff1a;\u95ee\u9898\u5206\u6790\u4e0e\u521d\u6b65\u6392\u67e5<\/h5>\n<p>\u9996\u5148&#xff0c;\u786e\u8ba4\u95ee\u9898\u8868\u73b0&#xff1a;\u8bbe\u5907\u65ad\u5f00\u53ef\u80fd\u8868\u73b0\u4e3a\u8bbe\u5907\u6d88\u5931&#xff08;\u5982ls \/dev\/ttyUSB*\u547d\u4ee4\u65e0\u8f93\u51fa&#xff09;\u3001\u901a\u4fe1\u4e2d\u65ad\u6216\u7cfb\u7edf\u65e5\u5fd7\u62a5\u9519\u3002\u5e38\u89c1\u539f\u56e0\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u786c\u4ef6\u95ee\u9898&#xff1a;USB\u63a5\u53e3\u677e\u52a8\u3001\u7535\u6e90\u4e0d\u8db3\u3001\u8bbe\u5907\u635f\u574f\u3002<\/li>\n<li>\u9a71\u52a8\u95ee\u9898&#xff1a;\u5185\u6838\u6a21\u5757\u4e0d\u7a33\u5b9a\u3001\u53c2\u6570\u914d\u7f6e\u4e0d\u5f53\u3002<\/li>\n<li>\u7cfb\u7edf\u95ee\u9898&#xff1a;\u8d44\u6e90\u51b2\u7a81\u3001USB\u81ea\u52a8\u6302\u8d77\u529f\u80fd\u542f\u7528\u3002<\/li>\n<\/ul>\n<p>\u521d\u6b65\u6392\u67e5\u547d\u4ee4&#xff1a;<\/p>\n<ul>\n<li>\u68c0\u67e5\u8bbe\u5907\u72b6\u6001&#xff1a;\u4f7f\u7528lsusb\u547d\u4ee4\u67e5\u770bUSB\u8bbe\u5907\u5217\u8868\u3002\u5982\u679c\u8bbe\u5907\u9891\u7e41\u6d88\u5931&#xff0c;\u8bb0\u5f55\u5176ID&#xff08;\u5982ID 067b:2303&#xff09;\u3002\n<p>lsusb  # \u5217\u51fa\u6240\u6709USB\u8bbe\u5907<\/p>\n<\/li>\n<li>\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7&#xff1a;\u8fd0\u884cdmesg -w\u5b9e\u65f6\u76d1\u63a7\u5185\u6838\u65e5\u5fd7&#xff0c;\u8fc7\u6ee4\u4e32\u53e3\u76f8\u5173\u9519\u8bef&#xff08;\u5982&#034;disconnected&#034;\u6216&#034;timeout&#034;&#xff09;\u3002\n<p>dmesg | grep ttyUSB  # \u8fc7\u6ee4\u65e5\u5fd7<\/p>\n<\/li>\n<li>\u6d4b\u8bd5\u8bbe\u5907\u7a33\u5b9a\u6027&#xff1a;\u4f7f\u7528stty\u6216minicom\u5de5\u5177\u8fdb\u884c\u7b80\u5355\u901a\u4fe1\u6d4b\u8bd5\u3002\u5982\u679c\u65ad\u5f00\u9891\u7387\u9ad8&#xff0c;\u8ba1\u7b97\u5e73\u5747\u65ad\u5f00\u95f4\u9694&#xff08;\u4f8b\u5982&#xff0c;\u6bcf\u5c0f\u65f6\u65ad\u5f00\u6b21\u6570&#xff09;\u3002\u8bbe\u65ad\u5f00\u6b21\u6570\u4e3a$n$&#xff0c;\u6d4b\u8bd5\u65f6\u957f\u4e3a$t$\u5c0f\u65f6&#xff0c;\u5219\u5e73\u5747\u65ad\u5f00\u7387\u4e3a$r &#061; \\\\frac{n}{t}$\u3002\u5982\u679c$r &gt; 0.5$\u6b21\/\u5c0f\u65f6&#xff0c;\u8868\u660e\u95ee\u9898\u4e25\u91cd\u3002<\/li>\n<\/ul>\n<h5>\u6b65\u9aa42&#xff1a;\u786c\u4ef6\u6392\u67e5<\/h5>\n<p>\u786c\u4ef6\u95ee\u9898\u662f\u5e38\u89c1\u6839\u6e90&#xff0c;\u4f18\u5148\u6392\u9664\u7269\u7406\u6545\u969c\u3002\u6267\u884c\u4ee5\u4e0b\u5b50\u6b65\u9aa4&#xff1a;<\/p>\n<li>\n<p>\u68c0\u67e5\u7269\u7406\u8fde\u63a5&#xff1a;<\/p>\n<ul>\n<li>\u786e\u4fddUSB\u7ebf\u7f06\u548c\u63a5\u53e3\u7262\u56fa&#xff1a;\u91cd\u65b0\u63d2\u62d4\u8bbe\u5907&#xff0c;\u5c1d\u8bd5\u4e0d\u540cUSB\u7aef\u53e3&#xff08;\u907f\u514d\u524d\u7f6e\u7aef\u53e3&#xff0c;\u4f18\u5148\u4f7f\u7528\u670d\u52a1\u5668\u540e\u7f6e\u7aef\u53e3&#xff09;\u3002<\/li>\n<li>\u66f4\u6362USB\u7ebf\u7f06&#xff1a;\u52a3\u8d28\u7ebf\u7f06\u53ef\u80fd\u5bfc\u81f4\u4f9b\u7535\u4e0d\u8db3\u6216\u4fe1\u53f7\u5e72\u6270\u3002<\/li>\n<li>\u6d4b\u8bd5\u8bbe\u5907\u517c\u5bb9\u6027&#xff1a;\u5c06\u8bbe\u5907\u8fde\u63a5\u5230\u5176\u4ed6Linux\u4e3b\u673a&#xff0c;\u5982\u679c\u95ee\u9898\u91cd\u73b0&#xff0c;\u5219\u6307\u5411\u8bbe\u5907\u786c\u4ef6\u6545\u969c\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7535\u6e90\u7ba1\u7406\u68c0\u67e5&#xff1a;<\/p>\n<ul>\n<li>USB\u8bbe\u5907\u53ef\u80fd\u56e0\u7535\u6e90\u4e0d\u8db3\u800c\u65ad\u5f00\u3002\u68c0\u67e5\u670d\u52a1\u5668USB\u7aef\u53e3\u4f9b\u7535\u80fd\u529b&#xff08;\u6807\u51c6\u4e3a5V\/500mA&#xff09;\u3002\u5982\u679c\u8bbe\u5907\u529f\u8017\u9ad8&#xff08;\u5982\u67d0\u4e9b\u4e32\u53e3\u8f6c\u6362\u5668&#xff09;&#xff0c;\u4f7f\u7528\u5e26\u5916\u90e8\u7535\u6e90\u7684USB hub\u3002<\/li>\n<li>\u7981\u7528USB\u81ea\u52a8\u6302\u8d77&#xff1a;\u7f16\u8f91\/etc\/rc.local\u6587\u4ef6&#xff0c;\u6dfb\u52a0\u547d\u4ee4&#xff1a;\n<p>echo &#039;on&#039; &gt; \/sys\/bus\/usb\/devices\/usbX\/power\/control  # \u66ff\u6362X\u4e3aUSB\u603b\u7ebf\u53f7<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u73af\u5883\u56e0\u7d20&#xff1a;<\/p>\n<ul>\n<li>\u907f\u514d\u7535\u78c1\u5e72\u6270&#xff1a;\u786e\u4fdd\u8bbe\u5907\u8fdc\u79bb\u7535\u6e90\u9002\u914d\u5668\u6216\u9ad8\u529f\u7387\u8bbe\u5907\u3002<\/li>\n<li>\u6e29\u5ea6\u6d4b\u8bd5&#xff1a;\u9ad8\u6e29\u53ef\u80fd\u5bfc\u81f4\u786c\u4ef6\u4e0d\u7a33\u5b9a\u3002\u76d1\u63a7\u670d\u52a1\u5668\u6e29\u5ea6&#xff08;\u4f7f\u7528sensors\u547d\u4ee4&#xff09;&#xff0c;\u5982\u679c\u73af\u5883\u6e29\u5ea6\u8d85\u8fc7$40^\\\\circ\\\\text{C}$&#xff0c;\u6539\u5584\u6563\u70ed\u3002<\/li>\n<\/ul>\n<\/li>\n<h5>\u6b65\u9aa43&#xff1a;\u9a71\u52a8\u4f18\u5316<\/h5>\n<p>\u5982\u679c\u786c\u4ef6\u6392\u67e5\u65e0\u679c&#xff0c;\u8f6c\u5411\u9a71\u52a8\u4f18\u5316\u3002Linux USB\u4e32\u53e3\u9a71\u52a8&#xff08;\u5982usbserial\u6a21\u5757&#xff09;\u53ef\u80fd\u9700\u8c03\u6574\u53c2\u6570\u6216\u66f4\u65b0\u3002<\/p>\n<li>\n<p>\u9a71\u52a8\u72b6\u6001\u68c0\u67e5&#xff1a;<\/p>\n<ul>\n<li>\u67e5\u770b\u52a0\u8f7d\u7684\u6a21\u5757&#xff1a;\u8fd0\u884clsmod | grep usbserial\u786e\u8ba4\u9a71\u52a8\u662f\u5426\u52a0\u8f7d\u3002<\/li>\n<li>\u91cd\u65b0\u52a0\u8f7d\u9a71\u52a8&#xff1a;\u5378\u8f7d\u5e76\u91cd\u8f7d\u6a21\u5757\u4ee5\u5237\u65b0\u72b6\u6001\u3002\n<p>sudo modprobe -r usbserial  # \u5378\u8f7d\u6a21\u5757<br \/>\nsudo modprobe usbserial  # \u91cd\u8f7d\u6a21\u5757<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u9a71\u52a8\u53c2\u6570\u4f18\u5316&#xff1a;<\/p>\n<ul>\n<li>\u8c03\u6574\u8d85\u65f6\u548c\u91cd\u8bd5\u53c2\u6570&#xff1a;\u7f16\u8f91\/etc\/modprobe.d\/usbserial.conf\u6587\u4ef6&#xff08;\u5982\u4e0d\u5b58\u5728\u5219\u521b\u5efa&#xff09;&#xff0c;\u6dfb\u52a0&#xff1a;\n<p>options usbserial vendor&#061;0x067b product&#061;0x2303 timeout&#061;5000 max_sectors&#061;1024  # \u793a\u4f8bID\u548c\u53c2\u6570<\/p>\n<p>\u5176\u4e2d&#xff1a;<\/p>\n<ul>\n<li>timeout&#061;5000&#xff1a;\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4\u4e3a5000\u6beb\u79d2&#xff0c;\u51cf\u5c11\u8bef\u5224\u65ad\u5f00\u3002<\/li>\n<li>max_sectors&#061;1024&#xff1a;\u589e\u5927\u6570\u636e\u4f20\u8f93\u7f13\u51b2\u533a\u3002<\/li>\n<li>\u53c2\u6570\u4f18\u5316\u57fa\u4e8e\u6982\u7387\u6a21\u578b&#xff1a;\u8bbe\u65ad\u5f00\u6982\u7387\u4e3a$p$&#xff0c;\u4f18\u5316\u540e$p$\u5e94\u964d\u4f4e\u3002\u901a\u8fc7\u65e5\u5fd7\u5206\u6790&#xff0c;\u8ba1\u7b97\u4f18\u5316\u524d\u540e$p$\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u66f4\u65b0\u6216\u66f4\u6362\u9a71\u52a8&#xff1a;<\/p>\n<ul>\n<li>\u5347\u7ea7\u5185\u6838&#xff1a;\u786e\u4fdd\u4f7f\u7528\u7a33\u5b9a\u5185\u6838\u7248\u672c&#xff08;\u5982LTS\u5206\u652f&#xff09;\u3002\u8fd0\u884cuname -r\u67e5\u770b\u7248\u672c&#xff0c;\u5982\u679c\u8fc7\u65e7&#xff0c;\u5347\u7ea7\u7cfb\u7edf\u3002<\/li>\n<li>\u4f7f\u7528\u66ff\u4ee3\u9a71\u52a8&#xff1a;\u5982\u679c\u9ed8\u8ba4\u9a71\u52a8\u4e0d\u7a33\u5b9a&#xff0c;\u5c1d\u8bd5ftdi_sio\u6216pl2303\u7b49\u4e13\u7528\u6a21\u5757&#xff08;\u6839\u636e\u8bbe\u5907ID\u9009\u62e9&#xff09;\u3002\n<p>sudo modprobe ftdi_sio  # \u793a\u4f8b\u52a0\u8f7dFTDI\u9a71\u52a8<\/p>\n<\/li>\n<li>\u7f16\u8bd1\u81ea\u5b9a\u4e49\u9a71\u52a8&#xff1a;\u4ece\u8bbe\u5907\u5236\u9020\u5546\u5b98\u7f51\u4e0b\u8f7d\u6700\u65b0\u9a71\u52a8\u6e90\u7801&#xff0c;\u7f16\u8bd1\u5b89\u88c5&#xff08;\u9700\u5f00\u53d1\u5de5\u5177\u5305&#xff09;&#xff1a;\n<p>make &amp;&amp; sudo make install  # \u5728\u9a71\u52a8\u6e90\u7801\u76ee\u5f55\u6267\u884c<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>udev\u89c4\u5219\u914d\u7f6e&#xff1a;<\/p>\n<ul>\n<li>\u521b\u5efaudev\u89c4\u5219\u56fa\u5b9a\u8bbe\u5907\u8282\u70b9&#xff0c;\u907f\u514d\u8bbe\u5907\u540d\u53d8\u5316\u3002\u7f16\u8f91\/etc\/udev\/rules.d\/99-ttyusb.rules&#xff1a;\n<p>SUBSYSTEM&#061;&#061;&#034;tty&#034;, ATTRS{idVendor}&#061;&#061;&#034;067b&#034;, ATTRS{idProduct}&#061;&#061;&#034;2303&#034;, SYMLINK&#043;&#061;&#034;ttyUSB_stable&#034;<\/p>\n<p>\u91cd\u542fudev\u670d\u52a1&#xff1a;sudo udevadm control &#8211;reload-rules &amp;&amp; sudo udevadm trigger\u3002<\/li>\n<\/ul>\n<\/li>\n<h5>\u6b65\u9aa44&#xff1a;\u9a8c\u8bc1\u4e0e\u76d1\u63a7<\/h5>\n<p>\u4f18\u5316\u540e&#xff0c;\u8fdb\u884c\u7a33\u5b9a\u6027\u6d4b\u8bd5&#xff1a;<\/p>\n<ul>\n<li>\u8fd0\u884c\u957f\u65f6\u95f4\u901a\u4fe1\u6d4b\u8bd5&#xff08;\u5982\u4f7f\u7528cat \/dev\/ttyUSB0 &gt; log.txt\u76d1\u63a7\u8f93\u51fa&#xff09;\u3002<\/li>\n<li>\u76d1\u63a7\u65e5\u5fd7&#xff1a;\u6301\u7eed\u89c2\u5bdfdmesg\u8f93\u51fa&#xff0c;\u8bb0\u5f55\u65ad\u5f00\u6b21\u6570\u3002<\/li>\n<li>\u91cf\u5316\u6539\u8fdb&#xff1a;\u6bd4\u8f83\u4f18\u5316\u524d\u540e\u65ad\u5f00\u7387$r$\u3002\u5982\u679c$r$\u964d\u81f3\u63a5\u8fd10&#xff0c;\u95ee\u9898\u89e3\u51b3&#xff1b;\u5426\u5219&#xff0c;\u91cd\u590d\u6392\u67e5\u3002<\/li>\n<\/ul>\n<h5>\u603b\u7ed3\u5efa\u8bae<\/h5>\n<ul>\n<li>\u786c\u4ef6\u4f18\u5148&#xff1a;80%\u7684\u6b64\u7c7b\u95ee\u9898\u6e90\u4e8e\u786c\u4ef6&#xff0c;\u5148\u5b8c\u6210\u7269\u7406\u6392\u67e5\u3002<\/li>\n<li>\u9a71\u52a8\u6b21\u4e4b&#xff1a;\u4f18\u5316\u53c2\u6570\u548c\u66f4\u65b0\u9a71\u52a8\u53ef\u663e\u8457\u63d0\u5347\u7a33\u5b9a\u6027\u3002<\/li>\n<li>\u9884\u9632\u63aa\u65bd&#xff1a;\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u3001\u4f7f\u7528\u9ad8\u8d28\u91cf\u7ebf\u7f06\u3001\u76d1\u63a7\u670d\u52a1\u5668\u73af\u5883\u3002<\/li>\n<li>\u5982\u679c\u95ee\u9898\u6301\u7eed&#xff0c;\u8003\u8651\u786c\u4ef6\u66ff\u6362\u6216\u54a8\u8be2\u4e13\u4e1a\u652f\u6301\u3002\u6574\u4e2a\u8fc7\u7a0b\u57fa\u4e8e\u771f\u5b9eLinux\u8fd0\u7ef4\u7ecf\u9a8c&#xff0c;\u786e\u4fdd\u53ef\u9760\u6027\u548c\u53ef\u91cd\u590d\u6027\u3002<\/li>\n<\/ul>\n<h4>Linux \u670d\u52a1\u5668\u4e32\u53e3\u8bbe\u5907&#xff08;\/dev\/ttyUSB&#xff09;\u9891\u7e41\u65ad\u5f00\u7684\u786c\u4ef6\u6392\u67e5\u4e0e\u9a71\u52a8\u4f18\u5316\u5b9e\u6218\u6848\u4f8b<\/h4>\n<p>\u5728Linux\u670d\u52a1\u5668\u4e2d&#xff0c;\u4e32\u53e3\u8bbe\u5907\u5982\/dev\/ttyUSB\u9891\u7e41\u65ad\u5f00\u662f\u5e38\u89c1\u95ee\u9898&#xff0c;\u901a\u5e38\u7531\u786c\u4ef6\u6545\u969c\u6216\u9a71\u52a8\u95ee\u9898\u5f15\u8d77\u3002\u672c\u6848\u4f8b\u5c06\u57fa\u4e8e\u771f\u5b9e\u7ecf\u9a8c&#xff0c;\u63d0\u4f9b\u7ed3\u6784\u6e05\u6670\u7684\u6392\u67e5\u4e0e\u4f18\u5316\u6b65\u9aa4&#xff0c;\u5e2e\u52a9\u60a8\u9010\u6b65\u89e3\u51b3\u3002\u6574\u4e2a\u8fc7\u7a0b\u5206\u4e3a\u786c\u4ef6\u6392\u67e5\u548c\u9a71\u52a8\u4f18\u5316\u4e24\u90e8\u5206&#xff0c;\u786e\u4fdd\u53ef\u9760\u6027\u548c\u53ef\u64cd\u4f5c\u6027\u3002<\/p>\n<h5>\u6b65\u9aa41&#xff1a;\u95ee\u9898\u5206\u6790\u4e0e\u521d\u6b65\u6392\u67e5<\/h5>\n<p>\u9996\u5148&#xff0c;\u786e\u8ba4\u95ee\u9898\u8868\u73b0&#xff1a;\u8bbe\u5907\u65ad\u5f00\u53ef\u80fd\u8868\u73b0\u4e3a\u8bbe\u5907\u6d88\u5931&#xff08;\u5982ls \/dev\/ttyUSB*\u547d\u4ee4\u65e0\u8f93\u51fa&#xff09;\u3001\u901a\u4fe1\u4e2d\u65ad\u6216\u7cfb\u7edf\u65e5\u5fd7\u62a5\u9519\u3002\u5e38\u89c1\u539f\u56e0\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u786c\u4ef6\u95ee\u9898&#xff1a;USB\u63a5\u53e3\u677e\u52a8\u3001\u7535\u6e90\u4e0d\u8db3\u3001\u8bbe\u5907\u635f\u574f\u3002<\/li>\n<li>\u9a71\u52a8\u95ee\u9898&#xff1a;\u5185\u6838\u6a21\u5757\u4e0d\u7a33\u5b9a\u3001\u53c2\u6570\u914d\u7f6e\u4e0d\u5f53\u3002<\/li>\n<li>\u7cfb\u7edf\u95ee\u9898&#xff1a;\u8d44\u6e90\u51b2\u7a81\u3001USB\u81ea\u52a8\u6302\u8d77\u529f\u80fd\u542f\u7528\u3002<\/li>\n<\/ul>\n<p>\u521d\u6b65\u6392\u67e5\u547d\u4ee4&#xff1a;<\/p>\n<ul>\n<li>\u68c0\u67e5\u8bbe\u5907\u72b6\u6001&#xff1a;\u4f7f\u7528lsusb\u547d\u4ee4\u67e5\u770bUSB\u8bbe\u5907\u5217\u8868\u3002\u5982\u679c\u8bbe\u5907\u9891\u7e41\u6d88\u5931&#xff0c;\u8bb0\u5f55\u5176ID&#xff08;\u5982ID 067b:2303&#xff09;\u3002\n<p>lsusb  # \u5217\u51fa\u6240\u6709USB\u8bbe\u5907<\/p>\n<\/li>\n<li>\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7&#xff1a;\u8fd0\u884cdmesg -w\u5b9e\u65f6\u76d1\u63a7\u5185\u6838\u65e5\u5fd7&#xff0c;\u8fc7\u6ee4\u4e32\u53e3\u76f8\u5173\u9519\u8bef&#xff08;\u5982&#034;disconnected&#034;\u6216&#034;timeout&#034;&#xff09;\u3002\n<p>dmesg | grep ttyUSB  # \u8fc7\u6ee4\u65e5\u5fd7<\/p>\n<\/li>\n<li>\u6d4b\u8bd5\u8bbe\u5907\u7a33\u5b9a\u6027&#xff1a;\u4f7f\u7528stty\u6216minicom\u5de5\u5177\u8fdb\u884c\u7b80\u5355\u901a\u4fe1\u6d4b\u8bd5\u3002\u5982\u679c\u65ad\u5f00\u9891\u7387\u9ad8&#xff0c;\u8ba1\u7b97\u5e73\u5747\u65ad\u5f00\u95f4\u9694&#xff08;\u4f8b\u5982&#xff0c;\u6bcf\u5c0f\u65f6\u65ad\u5f00\u6b21\u6570&#xff09;\u3002\u8bbe\u65ad\u5f00\u6b21\u6570\u4e3a$n$&#xff0c;\u6d4b\u8bd5\u65f6\u957f\u4e3a$t$\u5c0f\u65f6&#xff0c;\u5219\u5e73\u5747\u65ad\u5f00\u7387\u4e3a$r &#061; \\\\frac{n}{t}$\u3002\u5982\u679c$r &gt; 0.5$\u6b21\/\u5c0f\u65f6&#xff0c;\u8868\u660e\u95ee\u9898\u4e25\u91cd\u3002<\/li>\n<\/ul>\n<h5>\u6b65\u9aa42&#xff1a;\u786c\u4ef6\u6392\u67e5<\/h5>\n<p>\u786c\u4ef6\u95ee\u9898\u662f\u5e38\u89c1\u6839\u6e90&#xff0c;\u4f18\u5148\u6392\u9664\u7269\u7406\u6545\u969c\u3002\u6267\u884c\u4ee5\u4e0b\u5b50\u6b65\u9aa4&#xff1a;<\/p>\n<li>\n<p>\u68c0\u67e5\u7269\u7406\u8fde\u63a5&#xff1a;<\/p>\n<ul>\n<li>\u786e\u4fddUSB\u7ebf\u7f06\u548c\u63a5\u53e3\u7262\u56fa&#xff1a;\u91cd\u65b0\u63d2\u62d4\u8bbe\u5907&#xff0c;\u5c1d\u8bd5\u4e0d\u540cUSB\u7aef\u53e3&#xff08;\u907f\u514d\u524d\u7f6e\u7aef\u53e3&#xff0c;\u4f18\u5148\u4f7f\u7528\u670d\u52a1\u5668\u540e\u7f6e\u7aef\u53e3&#xff09;\u3002<\/li>\n<li>\u66f4\u6362USB\u7ebf\u7f06&#xff1a;\u52a3\u8d28\u7ebf\u7f06\u53ef\u80fd\u5bfc\u81f4\u4f9b\u7535\u4e0d\u8db3\u6216\u4fe1\u53f7\u5e72\u6270\u3002<\/li>\n<li>\u6d4b\u8bd5\u8bbe\u5907\u517c\u5bb9\u6027&#xff1a;\u5c06\u8bbe\u5907\u8fde\u63a5\u5230\u5176\u4ed6Linux\u4e3b\u673a&#xff0c;\u5982\u679c\u95ee\u9898\u91cd\u73b0&#xff0c;\u5219\u6307\u5411\u8bbe\u5907\u786c\u4ef6\u6545\u969c\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7535\u6e90\u7ba1\u7406\u68c0\u67e5&#xff1a;<\/p>\n<ul>\n<li>USB\u8bbe\u5907\u53ef\u80fd\u56e0\u7535\u6e90\u4e0d\u8db3\u800c\u65ad\u5f00\u3002\u68c0\u67e5\u670d\u52a1\u5668USB\u7aef\u53e3\u4f9b\u7535\u80fd\u529b&#xff08;\u6807\u51c6\u4e3a5V\/500mA&#xff09;\u3002\u5982\u679c\u8bbe\u5907\u529f\u8017\u9ad8&#xff08;\u5982\u67d0\u4e9b\u4e32\u53e3\u8f6c\u6362\u5668&#xff09;&#xff0c;\u4f7f\u7528\u5e26\u5916\u90e8\u7535\u6e90\u7684USB hub\u3002<\/li>\n<li>\u7981\u7528USB\u81ea\u52a8\u6302\u8d77&#xff1a;\u7f16\u8f91\/etc\/rc.local\u6587\u4ef6&#xff0c;\u6dfb\u52a0\u547d\u4ee4&#xff1a;\n<p>echo &#039;on&#039; &gt; \/sys\/bus\/usb\/devices\/usbX\/power\/control  # \u66ff\u6362X\u4e3aUSB\u603b\u7ebf\u53f7<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u73af\u5883\u56e0\u7d20&#xff1a;<\/p>\n<ul>\n<li>\u907f\u514d\u7535\u78c1\u5e72\u6270&#xff1a;\u786e\u4fdd\u8bbe\u5907\u8fdc\u79bb\u7535\u6e90\u9002\u914d\u5668\u6216\u9ad8\u529f\u7387\u8bbe\u5907\u3002<\/li>\n<li>\u6e29\u5ea6\u6d4b\u8bd5&#xff1a;\u9ad8\u6e29\u53ef\u80fd\u5bfc\u81f4\u786c\u4ef6\u4e0d\u7a33\u5b9a\u3002\u76d1\u63a7\u670d\u52a1\u5668\u6e29\u5ea6&#xff08;\u4f7f\u7528sensors\u547d\u4ee4&#xff09;&#xff0c;\u5982\u679c\u73af\u5883\u6e29\u5ea6\u8d85\u8fc7$40^\\\\circ\\\\text{C}$&#xff0c;\u6539\u5584\u6563\u70ed\u3002<\/li>\n<\/ul>\n<\/li>\n<h5>\u6b65\u9aa43&#xff1a;\u9a71\u52a8\u4f18\u5316<\/h5>\n<p>\u5982\u679c\u786c\u4ef6\u6392\u67e5\u65e0\u679c&#xff0c;\u8f6c\u5411\u9a71\u52a8\u4f18\u5316\u3002Linux USB\u4e32\u53e3\u9a71\u52a8&#xff08;\u5982usbserial\u6a21\u5757&#xff09;\u53ef\u80fd\u9700\u8c03\u6574\u53c2\u6570\u6216\u66f4\u65b0\u3002<\/p>\n<li>\n<p>\u9a71\u52a8\u72b6\u6001\u68c0\u67e5&#xff1a;<\/p>\n<ul>\n<li>\u67e5\u770b\u52a0\u8f7d\u7684\u6a21\u5757&#xff1a;\u8fd0\u884clsmod | grep usbserial\u786e\u8ba4\u9a71\u52a8\u662f\u5426\u52a0\u8f7d\u3002<\/li>\n<li>\u91cd\u65b0\u52a0\u8f7d\u9a71\u52a8&#xff1a;\u5378\u8f7d\u5e76\u91cd\u8f7d\u6a21\u5757\u4ee5\u5237\u65b0\u72b6\u6001\u3002\n<p>sudo modprobe -r usbserial  # \u5378\u8f7d\u6a21\u5757<br \/>\nsudo modprobe usbserial  # \u91cd\u8f7d\u6a21\u5757<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u9a71\u52a8\u53c2\u6570\u4f18\u5316&#xff1a;<\/p>\n<ul>\n<li>\u8c03\u6574\u8d85\u65f6\u548c\u91cd\u8bd5\u53c2\u6570&#xff1a;\u7f16\u8f91\/etc\/modprobe.d\/usbserial.conf\u6587\u4ef6&#xff08;\u5982\u4e0d\u5b58\u5728\u5219\u521b\u5efa&#xff09;&#xff0c;\u6dfb\u52a0&#xff1a;\n<p>options usbserial vendor&#061;0x067b product&#061;0x2303 timeout&#061;5000 max_sectors&#061;1024  # \u793a\u4f8bID\u548c\u53c2\u6570<\/p>\n<p>\u5176\u4e2d&#xff1a;<\/p>\n<ul>\n<li>timeout&#061;5000&#xff1a;\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4\u4e3a5000\u6beb\u79d2&#xff0c;\u51cf\u5c11\u8bef\u5224\u65ad\u5f00\u3002<\/li>\n<li>max_sectors&#061;1024&#xff1a;\u589e\u5927\u6570\u636e\u4f20\u8f93\u7f13\u51b2\u533a\u3002<\/li>\n<li>\u53c2\u6570\u4f18\u5316\u57fa\u4e8e\u6982\u7387\u6a21\u578b&#xff1a;\u8bbe\u65ad\u5f00\u6982\u7387\u4e3a$p$&#xff0c;\u4f18\u5316\u540e$p$\u5e94\u964d\u4f4e\u3002\u901a\u8fc7\u65e5\u5fd7\u5206\u6790&#xff0c;\u8ba1\u7b97\u4f18\u5316\u524d\u540e$p$\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u66f4\u65b0\u6216\u66f4\u6362\u9a71\u52a8&#xff1a;<\/p>\n<ul>\n<li>\u5347\u7ea7\u5185\u6838&#xff1a;\u786e\u4fdd\u4f7f\u7528\u7a33\u5b9a\u5185\u6838\u7248\u672c&#xff08;\u5982LTS\u5206\u652f&#xff09;\u3002\u8fd0\u884cuname -r\u67e5\u770b\u7248\u672c&#xff0c;\u5982\u679c\u8fc7\u65e7&#xff0c;\u5347\u7ea7\u7cfb\u7edf\u3002<\/li>\n<li>\u4f7f\u7528\u66ff\u4ee3\u9a71\u52a8&#xff1a;\u5982\u679c\u9ed8\u8ba4\u9a71\u52a8\u4e0d\u7a33\u5b9a&#xff0c;\u5c1d\u8bd5ftdi_sio\u6216pl2303\u7b49\u4e13\u7528\u6a21\u5757&#xff08;\u6839\u636e\u8bbe\u5907ID\u9009\u62e9&#xff09;\u3002\n<p>sudo modprobe ftdi_sio  # \u793a\u4f8b\u52a0\u8f7dFTDI\u9a71\u52a8<\/p>\n<\/li>\n<li>\u7f16\u8bd1\u81ea\u5b9a\u4e49\u9a71\u52a8&#xff1a;\u4ece\u8bbe\u5907\u5236\u9020\u5546\u5b98\u7f51\u4e0b\u8f7d\u6700\u65b0\u9a71\u52a8\u6e90\u7801&#xff0c;\u7f16\u8bd1\u5b89\u88c5&#xff08;\u9700\u5f00\u53d1\u5de5\u5177\u5305&#xff09;&#xff1a;\n<p>make &amp;&amp; sudo make install  # \u5728\u9a71\u52a8\u6e90\u7801\u76ee\u5f55\u6267\u884c<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>udev\u89c4\u5219\u914d\u7f6e&#xff1a;<\/p>\n<ul>\n<li>\u521b\u5efaudev\u89c4\u5219\u56fa\u5b9a\u8bbe\u5907\u8282\u70b9&#xff0c;\u907f\u514d\u8bbe\u5907\u540d\u53d8\u5316\u3002\u7f16\u8f91\/etc\/udev\/rules.d\/99-ttyusb.rules&#xff1a;\n<p>SUBSYSTEM&#061;&#061;&#034;tty&#034;, ATTRS{idVendor}&#061;&#061;&#034;067b&#034;, ATTRS{idProduct}&#061;&#061;&#034;2303&#034;, SYMLINK&#043;&#061;&#034;ttyUSB_stable&#034;<\/p>\n<p>\u91cd\u542fudev\u670d\u52a1&#xff1a;sudo udevadm control &#8211;reload-rules &amp;&amp; sudo udevadm trigger\u3002<\/li>\n<\/ul>\n<\/li>\n<h5>\u6b65\u9aa44&#xff1a;\u9a8c\u8bc1\u4e0e\u76d1\u63a7<\/h5>\n<p>\u4f18\u5316\u540e&#xff0c;\u8fdb\u884c\u7a33\u5b9a\u6027\u6d4b\u8bd5&#xff1a;<\/p>\n<ul>\n<li>\u8fd0\u884c\u957f\u65f6\u95f4\u901a\u4fe1\u6d4b\u8bd5&#xff08;\u5982\u4f7f\u7528cat \/dev\/ttyUSB0 &gt; log.txt\u76d1\u63a7\u8f93\u51fa&#xff09;\u3002<\/li>\n<li>\u76d1\u63a7\u65e5\u5fd7&#xff1a;\u6301\u7eed\u89c2\u5bdfdmesg\u8f93\u51fa&#xff0c;\u8bb0\u5f55\u65ad\u5f00\u6b21\u6570\u3002<\/li>\n<li>\u91cf\u5316\u6539\u8fdb&#xff1a;\u6bd4\u8f83\u4f18\u5316\u524d\u540e\u65ad\u5f00\u7387$r$\u3002\u5982\u679c$r$\u964d\u81f3\u63a5\u8fd10&#xff0c;\u95ee\u9898\u89e3\u51b3&#xff1b;\u5426\u5219&#xff0c;\u91cd\u590d\u6392\u67e5\u3002<\/li>\n<\/ul>\n<h5>\u603b\u7ed3\u5efa\u8bae<\/h5>\n<ul>\n<li>\u786c\u4ef6\u4f18\u5148&#xff1a;80%\u7684\u6b64\u7c7b\u95ee\u9898\u6e90\u4e8e\u786c\u4ef6&#xff0c;\u5148\u5b8c\u6210\u7269\u7406\u6392\u67e5\u3002<\/li>\n<li>\u9a71\u52a8\u6b21\u4e4b&#xff1a;\u4f18\u5316\u53c2\u6570\u548c\u66f4\u65b0\u9a71\u52a8\u53ef\u663e\u8457\u63d0\u5347\u7a33\u5b9a\u6027\u3002<\/li>\n<li>\u9884\u9632\u63aa\u65bd&#xff1a;\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u3001\u4f7f\u7528\u9ad8\u8d28\u91cf\u7ebf\u7f06\u3001\u76d1\u63a7\u670d\u52a1\u5668\u73af\u5883\u3002<\/li>\n<li>\u5982\u679c\u95ee\u9898\u6301\u7eed&#xff0c;\u8003\u8651\u786c\u4ef6\u66ff\u6362\u6216\u54a8\u8be2\u4e13\u4e1a\u652f\u6301\u3002\u6574\u4e2a\u8fc7\u7a0b\u57fa\u4e8e\u771f\u5b9eLinux\u8fd0\u7ef4\u7ecf\u9a8c&#xff0c;\u786e\u4fdd\u53ef\u9760\u6027\u548c\u53ef\u91cd\u590d\u6027\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u670d\u52a1\u5668\u4e32\u53e3\u8bbe\u5907&#xff08;\/dev\/ttyUSB&#xff09;\u9891\u7e41\u65ad\u5f00\u7684\u786c\u4ef6\u6392\u67e5\u4e0e\u9a71\u52a8\u4f18\u5316\u5b9e\u6218\u6848\u4f8b\u5728Linux\u670d\u52a1\u5668\u4e2d&#xff0c;\u4e32\u53e3\u8bbe\u5907\u5982\/dev\/ttyUSB\u9891\u7e41\u65ad\u5f00\u662f\u5e38\u89c1\u95ee\u9898&#xff0c;\u901a\u5e38\u7531\u786c\u4ef6\u6545\u969c\u6216\u9a71\u52a8\u95ee\u9898\u5f15\u8d77\u3002\u672c\u6848\u4f8b\u5c06\u57fa\u4e8e\u771f\u5b9e\u7ecf\u9a8c&#xff0c;\u63d0\u4f9b\u7ed3\u6784\u6e05\u6670\u7684\u6392\u67e5\u4e0e\u4f18\u5316\u6b65\u9aa4&#xff0c;\u5e2e\u52a9\u60a8\u9010\u6b65\u89e3\u51b3\u3002\u6574\u4e2a\u8fc7\u7a0b\u5206\u4e3a\u786c\u4ef6\u6392\u67e5\u548c\u9a71\u52a8\u4f18\u5316\u4e24\u90e8\u5206&#xff0c;\u786e\u4fdd\u53ef\u9760\u6027\u548c\u53ef\u64cd\u4f5c\u6027\u3002\u6b65\u9aa41&#xff1a;\u95ee\u9898\u5206\u6790\u4e0e\u521d\u6b65\u6392\u67e5\u9996\u5148&#xff0c;\u786e<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,43,78],"topic":[],"class_list":["post-74981","post","type-post","status-publish","format-standard","hentry","category-server","tag-linux","tag-43","tag-78"],"yoast_head":"<!-- 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