{"id":92077,"date":"2024-04-26T15:05:09","date_gmt":"2024-04-26T07:05:09","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=92077"},"modified":"2024-04-26T15:05:14","modified_gmt":"2024-04-26T07:05:14","slug":"ckcytxxyynjz","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/92077.html","title":{"rendered":"\u4e32\u53e3\u5e38\u7528\u901a\u4fe1\u534f\u8bae\u6709\u54ea\u51e0\u79cd"},"content":{"rendered":"\n<p>\u3000\u3000\u4e32\u53e3\u5e38\u7528\u901a\u4fe1\u534f\u8bae\u4e3b\u8981\u5305\u62ecRS-232\u3001RS-422\u548cRS-485.\u8fd9\u4e9b\u534f\u8bae\u5728\u4e32\u53e3\u901a\u4fe1\u4e2d\u7684\u666e\u904d\u5e94\u7528\u548c\u91cd\u8981\u6027\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000RS-232\uff1a\u8fd9\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u6807\u51c6\uff0c\u7531\u7f8e\u56fd\u7535\u5b50\u5de5\u4e1a\u534f\u4f1a(EIA)\u5236\u5b9a\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u8ba1\u7b97\u673a\u4e0e\u8ba1\u7b97\u673a\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u4ee5\u53ca\u8ba1\u7b97\u673a\u4e0e\u5916\u56f4\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u3000\u3000RS-422\uff1a\u8fd9\u662f\u4e00\u79cd\u652f\u6301\u591a\u70b9\u901a\u4fe1\u7684\u4e32\u884c\u63a5\u53e3\u6807\u51c6\uff0c\u5141\u8bb8\u4e00\u4e2a\u53d1\u9001\u5668\u540c\u65f6\u5411\u591a\u4e2a\u63a5\u6536\u5668\u53d1\u9001\u6570\u636e\u3002\u8fd9\u79cd\u534f\u8bae\u63d0\u4f9b\u4e86\u6bd4RS-232\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u66f4\u5f3a\u7684\u6570\u636e\u5b8c\u6574\u6027\u4fdd\u62a4\u3002<\/li>\n\n\n\n<li>\u3000\u3000RS-485\uff1a\u8fd9\u662f\u4e00\u79cd\u591a\u8282\u70b9\u3001\u8fdc\u8ddd\u79bb\u3001\u4f4e\u566a\u58f0\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u9002\u7528\u4e8e\u5de5\u4e1a\u73af\u5883\u4e2d\u7684\u6570\u636e\u4f20\u8f93\u3002\u5b83\u652f\u6301\u66f4\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\u548c\u66f4\u591a\u7684\u8fde\u63a5\u8bbe\u5907\u6570\u91cf\uff0c\u540c\u65f6\u4fdd\u6301\u8f83\u4f4e\u7684\u4fe1\u53f7\u8870\u51cf\u548c\u4e32\u6270\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6b64\u5916\uff0c\u8fd8\u6709\u63d0\u53ca\u5230UART(\u901a\u7528\u5f02\u6b65\u6536\u53d1\u5668)\u4f5c\u4e3a\u4e00\u79cd\u4e32\u884c\u3001\u5f02\u6b65\u3001\u5168\u53cc\u5de5\u7684\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u5c06\u6240\u9700\u4f20\u8f93\u7684\u6570\u636e\u4e00\u4f4d\u63a5\u4e00\u4f4d\u5730\u4f20\u8f93\u3002\u8fd9\u8868\u660eUART\u4e5f\u662f\u4e00\u79cd\u91cd\u8981\u7684\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\uff0c\u5c3d\u7ba1\u5b83\u66f4\u591a\u5730\u88ab\u89c6\u4e3a\u4e00\u79cd\u7279\u5b9a\u7c7b\u578b\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u72ec\u7acb\u7684\u901a\u4fe1\u534f\u8bae\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>\u4e32\u53e3\u5e38\u7528\u901a\u4fe1\u534f\u8bae\u4e3b\u8981\u6709RS-232\u3001RS-422\u3001RS-485\u548cUART\u7b49\u51e0\u79cd\u3002\u8fd9\u4e9b\u534f\u8bae\u5404\u6709\u7279\u70b9\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 RS-232\u3001RS-422\u548cRS-485\u534f\u8bae\u7684\u5177\u4f53\u6280\u672f\u89c4\u683c\u548c\u6027\u80fd\u6bd4\u8f83\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000<strong>RS-232\u3001RS-422\u548cRS-485\u662f\u4e09\u79cd\u4e0d\u540c\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u4eec\u5728\u6280\u672f\u89c4\u683c\u548c\u6027\u80fd\u4e0a\u6709\u6240\u533a\u522b\u3002<\/strong><\/p>\n\n\n\n<p>\u3000\u3000RS-232\u662f\u4e00\u79cd\u8f83\u65e9\u7684\u4e32\u884c\u901a\u4fe1\u6807\u51c6\uff0c\u4e3b\u8981\u7528\u4e8e\u77ed\u8ddd\u79bb\u901a\u4fe1\u3002\u5b83\u7684\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\u5927\u7ea6\u4e3a1 Mbps\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u8fbe\u523015 Mbps\u3002RS-232\u7684\u6700\u5927\u7535\u7f06\u957f\u5ea6\u4e3a50\u82f1\u5c3a(\u7ea615.2\u7c73)\uff0c\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e3a20 Kbps\u3002\u8fd9\u79cd\u6807\u51c6\u7684\u7279\u70b9\u662f\u4fe1\u53f7\u7535\u5e73\u8f83\u9ad8\uff0c\u56e0\u6b64\u5bf9\u8bbe\u5907\u7684\u7535\u78c1\u5e72\u6270\u654f\u611f\u3002<\/p>\n\n\n\n<p>\u3000\u3000RS-422\u662f\u5728RS-232\u7684\u57fa\u7840\u4e0a\u53d1\u5c55\u8d77\u6765\u7684\uff0c\u5b83\u652f\u6301\u591a\u70b9\u3001\u53cc\u5411\u901a\u4fe1\u80fd\u529b\uff0c\u5141\u8bb8\u591a\u4e2a\u53d1\u9001\u5668\u8fde\u63a5\u5230\u540c\u4e00\u6761\u603b\u7ebf\u4e0a\u3002RS-422\u7684\u7535\u6c14\u6027\u80fd\u4e0eRS-485\u5b8c\u5168\u4e00\u6837\uff0c\u4f46\u4e3b\u8981\u533a\u522b\u5728\u4e8eRS-422\u67094\u6839\u4fe1\u53f7\u7ebf\uff1a\u4e24\u6839\u53d1\u9001(Y\u3001Z)\u3001\u4e24\u6839\u63a5\u6536(A\u3001B)\u3002\u8fd9\u4f7f\u5f97RS-422\u80fd\u591f\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u901a\u4fe1\u9700\u6c42\u3002<\/p>\n\n\n\n<p>\u3000\u3000RS-485\u662f\u4e00\u79cd\u8bbe\u8ba1\u7528\u4e8e\u591a\u70b9\u7cfb\u7edf\u7684\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u6bd4RS-232\u66f4\u52a0\u5065\u58ee\uff0c\u80fd\u591f\u5728\u66f4\u5927\u7684\u8ddd\u79bb\u4e0a\u8fdb\u884c\u901a\u4fe1\u3002\u7406\u8bba\u4e0a\uff0cRS-485\u7684\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\u53ef\u8fbe10 Mbps\uff0c\u5b9e\u9645\u4e0a\uff0c\u57281200\u7c73\u7684\u6700\u5927\u8ddd\u79bb\u4e0b\uff0c\u5176\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e3a100 Kbps\u3002RS-485\u7684\u6700\u5927\u7535\u7f06\u957f\u5ea6\u53ef\u8fbe4000\u82f1\u5c3a(\u7ea61219.2\u7c73)\uff0c\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e3a100 Kbps\u3002\u6b64\u5916\uff0cRS-485\u7684\u6570\u636e\u6700\u9ad8\u4f20\u8f93\u901f\u7387\u4e3a10Mbps\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u603b\u7ed3\u6765\u8bf4\uff0cRS-232\u9002\u7528\u4e8e\u77ed\u8ddd\u79bb\u3001\u4f4e\u6570\u636e\u901f\u7387\u7684\u901a\u4fe1\u573a\u666f\uff0c\u800cRS-485\u5219\u66f4\u9002\u5408\u957f\u8ddd\u79bb\u3001\u9ad8\u6570\u636e\u901f\u7387\u7684\u9700\u6c42\u3002RS-422\u4ecb\u4e8e\u4e24\u8005\u4e4b\u95f4\uff0c\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\u548c\u6269\u5c55\u6027\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u591a\u70b9\u3001\u53cc\u5411\u901a\u4fe1\u7684\u5e94\u7528\u4e2d\u3002\u6bcf\u79cd\u6807\u51c6\u90fd\u6709\u5176\u7279\u5b9a\u7684\u6280\u672f\u89c4\u683c\u548c\u6027\u80fd\u7279\u70b9\uff0c\u9009\u62e9\u54ea\u79cd\u6807\u51c6\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u9700\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 UART\u534f\u8bae\u5728\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u548c\u4f18\u52bf\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n<p>\u3000\u3000UART\u534f\u8bae\u5728\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5176\u4f18\u52bf\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u7b80\u5355\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\uff1aUART\u534f\u8bae\u652f\u6301\u5168\u53cc\u5de5\u901a\u4fe1\uff0c\u5373\u53ef\u4ee5\u540c\u65f6\u8fdb\u884c\u53d1\u9001\u548c\u63a5\u6536\u64cd\u4f5c\uff0c\u800c\u53ea\u9700\u8981\u4f7f\u7528\u4e24\u6839\u4fe1\u53f7\u7ebf(\u4e0d\u7b97\u7535\u6e90\u7ebf)\uff0c\u8fd9\u5927\u5927\u7b80\u5316\u4e86\u786c\u4ef6\u8bbe\u8ba1\u548c\u5e03\u7ebf\u5de5\u4f5c\u3002\u8fd9\u79cd\u7b80\u5316\u7684\u786c\u4ef6\u9700\u6c42\u4f7f\u5f97UART\u534f\u8bae\u975e\u5e38\u9002\u5408\u4e8e\u8d44\u6e90\u53d7\u9650\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u548c\u5404\u79cd\u7535\u5b50\u8bbe\u5907\u4e2d\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u65e0\u9700\u65f6\u949f\u4fe1\u53f7\uff1aUART\u534f\u8bae\u4e0d\u9700\u8981\u5916\u90e8\u65f6\u949f\u4fe1\u53f7\u6765\u540c\u6b65\u6570\u636e\u4f20\u8f93\uff0c\u8fd9\u964d\u4f4e\u4e86\u7cfb\u7edf\u7684\u590d\u6742\u6027\u548c\u6210\u672c\u3002\u7531\u4e8e\u4e0d\u9700\u8981\u989d\u5916\u7684\u65f6\u949f\u4fe1\u53f7\uff0cUART\u534f\u8bae\u80fd\u591f\u63d0\u4f9b\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u548c\u9002\u5e94\u6027\uff0c\u4f7f\u5176\u80fd\u591f\u5728\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u4e0b\u90fd\u80fd\u7a33\u5b9a\u8fd0\u884c\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u9519\u8bef\u68c0\u6d4b\u4e0e\u6821\u6b63\uff1a\u901a\u8fc7\u5947\u5076\u6821\u9a8c\u4f4d\uff0cUART\u534f\u8bae\u80fd\u591f\u63d0\u4f9b\u786c\u4ef6\u7ea7\u522b\u7684\u9519\u8bef\u68c0\u67e5\u529f\u80fd\u3002\u8fd9\u610f\u5473\u7740\u5373\u4f7f\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u8f7b\u5fae\u7684\u5e72\u6270\u6216\u9519\u8bef\uff0c\u4e5f\u80fd\u591f\u88ab\u53ca\u65f6\u53d1\u73b0\u5e76\u7ea0\u6b63\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u7075\u6d3b\u7684\u6570\u636e\u5305\u7ed3\u6784\uff1aUART\u534f\u8bae\u5141\u8bb8\u6570\u636e\u5305\u7684\u7ed3\u6784\u901a\u8fc7\u4e24\u7aef\u4e4b\u95f4\u7684\u534f\u8c03\u6765\u6539\u53d8\uff0c\u8fd9\u4e3a\u6570\u636e\u683c\u5f0f\u7684\u5b9a\u5236\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u7075\u6d3b\u6027\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97UART\u534f\u8bae\u80fd\u591f\u9002\u5e94\u5404\u79cd\u4e0d\u540c\u7684\u901a\u4fe1\u9700\u6c42\u548c\u6807\u51c6\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u4e30\u5bcc\u7684\u6587\u6863\u548c\u5e7f\u6cdb\u7684\u5e94\u7528\uff1aUART\u534f\u8bae\u6709\u7740\u4e30\u5bcc\u7684\u6587\u6863\u8d44\u6599\u652f\u6301\uff0c\u4e14\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5355\u7247\u673a\u3001\u5d4c\u5165\u5f0f\u8bbe\u5907\u4ee5\u53ca\u8ba1\u7b97\u673a\u901a\u4fe1\u7b49\u9886\u57df\u3002\u8fd9\u79cd\u5e7f\u6cdb\u7684\u5e94\u7528\u57fa\u7840\u548c\u6280\u672f\u6210\u719f\u5ea6\uff0c\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u5927\u91cf\u7684\u5b66\u4e60\u8d44\u6e90\u548c\u5b9e\u8df5\u7ecf\u9a8c\uff0c\u964d\u4f4e\u4e86\u5b66\u4e60\u66f2\u7ebf\u548c\u5f00\u53d1\u96be\u5ea6\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u9ad8\u6ce2\u7279\u7387\u652f\u6301\uff1a\u5c3d\u7ba1UART\u534f\u8bae\u5728\u8bbe\u8ba1\u4e0a\u8ffd\u6c42\u7b80\u5355\u548c\u9ad8\u6548\uff0c\u4f46\u5b83\u4ecd\u7136\u80fd\u591f\u652f\u6301\u9ad8\u8fbe10mbps\u7684\u6ce2\u7279\u7387\u3002\u8fd9\u8868\u660eUART\u534f\u8bae\u80fd\u591f\u5728\u4fdd\u6301\u4f4e\u529f\u8017\u548c\u4f4e\u6210\u672c\u7684\u540c\u65f6\uff0c\u4e5f\u80fd\u6ee1\u8db3\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u7684\u9700\u6c42\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000UART\u534f\u8bae\u56e0\u5176\u7b80\u5355\u9ad8\u6548\u3001\u65e0\u9700\u65f6\u949f\u4fe1\u53f7\u3001\u5177\u6709\u9519\u8bef\u68c0\u6d4b\u4e0e\u6821\u6b63\u80fd\u529b\u3001\u6570\u636e\u5305\u7ed3\u6784\u7075\u6d3b\u3001\u6709\u4e30\u5bcc\u7684\u6587\u6863\u548c\u5e7f\u6cdb\u7684\u5e94\u7528\u57fa\u7840\u4ee5\u53ca\u652f\u6301\u9ad8\u6ce2\u7279\u7387\u7b49\u4f18\u52bf\uff0c\u5728\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5982\u4f55\u6839\u636e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u4e32\u53e3\u901a\u4fe1\u534f\u8bae?<\/h2>\n\n\n\n<p>\u3000\u3000\u9009\u62e9\u5408\u9002\u7684\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u9700\u8981\u8003\u8651\u5e94\u7528\u573a\u666f\u7684\u5177\u4f53\u9700\u6c42\uff0c\u5305\u62ec\u901a\u4fe1\u8ddd\u79bb\u3001\u6570\u636e\u4f20\u8f93\u901f\u7387\u3001\u8bbe\u5907\u6570\u91cf\u4ee5\u53ca\u662f\u5426\u9700\u8981\u591a\u70b9\u8fde\u63a5\u7b49\u56e0\u7d20\u3002\u4ee5\u4e0b\u662f\u6839\u636e\u4e0d\u540c\u5e94\u7528\u573a\u666f\u9009\u62e9\u5408\u9002\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u7684\u5efa\u8bae\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u901a\u4fe1\u8ddd\u79bb\uff1a\u5982\u679c\u901a\u4fe1\u8ddd\u79bb\u8f83\u77ed\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528RS232\u534f\u8bae\uff0c\u56e0\u4e3a\u5b83\u4f7f\u7528\u5355\u7aef\u4fe1\u53f7\u4f20\u8f93\uff0c\u9002\u7528\u4e8e\u4e2a\u4eba\u7535\u8111\u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u7684\u8fde\u63a5\u3002\u5bf9\u4e8e\u8f83\u957f\u7684\u901a\u4fe1\u8ddd\u79bb\uff0cRS485\u662f\u4e00\u4e2a\u66f4\u597d\u7684\u9009\u62e9\uff0c\u56e0\u4e3a\u5b83\u652f\u6301\u591a\u70b9\u8fde\u63a5\uff0c\u9002\u5408\u5728\u591a\u4e2a\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u4f20\u8f93\u901f\u7387\uff1a\u5982\u679c\u5bf9\u6570\u636e\u4f20\u8f93\u901f\u7387\u6709\u8f83\u9ad8\u8981\u6c42\uff0c\u5e94\u8003\u8651\u4f7f\u7528\u652f\u6301\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u7684\u534f\u8bae\u3002\u4f8b\u5982\uff0cUSART\u534f\u8bae\u652f\u6301\u540c\u6b65\u548c\u5f02\u6b65\u4e24\u79cd\u901a\u4fe1\u6a21\u5f0f\uff0c\u53ef\u7528\u4e8e\u5b9e\u73b0\u5168\u53cc\u5de5\u901a\u4fe1\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u914d\u7f6e\u9009\u9879\uff0c\u5982\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\u7b49\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u8bbe\u5907\u6570\u91cf\uff1a\u5f53\u9700\u8981\u8fde\u63a5\u591a\u4e2a\u8bbe\u5907\u65f6\uff0cRS485\u56e0\u5176\u652f\u6301\u591a\u70b9\u8fde\u63a5\u7684\u7279\u6027\u800c\u6210\u4e3a\u66f4\u4f18\u7684\u9009\u62e9\u3002RS485\u80fd\u591f\u901a\u8fc7\u4e00\u6761\u7ebf\u8def\u8fde\u63a5\u591a\u8fbe120\u4e2a\u4ece\u8bbe\u5907\uff0c\u8fd9\u4f7f\u5f97\u5b83\u975e\u5e38\u9002\u5408\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u7b49\u9886\u57df\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u662f\u5426\u9700\u8981\u591a\u70b9\u8fde\u63a5\uff1a\u5982\u679c\u5e94\u7528\u573a\u666f\u4e2d\u9700\u8981\u591a\u4e2a\u8bbe\u5907\u901a\u8fc7\u5355\u4e00\u901a\u4fe1\u7ebf\u8def\u8fdb\u884c\u6570\u636e\u4ea4\u6362\uff0c\u90a3\u4e48RS485\u6216RS422\u5c06\u662f\u66f4\u5408\u9002\u7684\u9009\u62e9\u3002RS485\u548cRS422\u90fd\u652f\u6301\u591a\u70b9\u8fde\u63a5\uff0c\u4f46RS422\u901a\u5e38\u7528\u4e8e\u534a\u53cc\u5de5\u901a\u4fe1\uff0c\u800cRS485\u65e2\u53ef\u4ee5\u7528\u4e8e\u534a\u53cc\u5de5\u4e5f\u53ef\u4ee5\u7528\u4e8e\u5168\u53cc\u5de5\u901a\u4fe1\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u9009\u62e9\u5408\u9002\u7684\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u9700\u8981\u6839\u636e\u5b9e\u9645\u7684\u5e94\u7528\u9700\u6c42\u6765\u51b3\u5b9a\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u77ed\u8ddd\u79bb\u901a\u4fe1\u548c\u5c11\u91cf\u8bbe\u5907\u8fde\u63a5\uff0cRS232\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9;\u800c\u5bf9\u4e8e\u957f\u8ddd\u79bb\u901a\u4fe1\u3001\u5927\u91cf\u8bbe\u5907\u8fde\u63a5\u6216\u9700\u8981\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\u7684\u5e94\u7528\uff0c\u5219\u5e94\u8003\u8651\u4f7f\u7528RS485\u6216RS422\u7b49\u5176\u4ed6\u534f\u8bae\u3002\u6b64\u5916\uff0cUSART\u534f\u8bae\u56e0\u5176\u7075\u6d3b\u7684\u914d\u7f6e\u9009\u9879\uff0c\u4e5f\u9002\u5408\u4e8e\u591a\u79cd\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 \u9664\u4e86RS-232\u3001RS-422\u3001RS-485\u548cUART\uff0c\u8fd8\u6709\u54ea\u4e9b\u65b0\u5174\u7684\u4e32\u53e3\u901a\u4fe1\u534f\u8bae?<\/h2>\n\n\n\n<p>\u3000\u3000\u9664\u4e86RS-232\u3001RS-422\u3001RS-485\u548cUART\uff0c\u65b0\u5174\u7684\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u8fd8\u5305\u62ecPCIe( peripheral component interconnect express)\u3002PCIe\u662f\u4e00\u79cd\u9ad8\u901f\u4e32\u884c\u8ba1\u7b97\u673a\u6269\u5c55\u603b\u7ebf\u6807\u51c6\uff0c\u5b83\u901a\u8fc7\u63d0\u4f9b\u5168\u53cc\u5de5\u7684\u8fde\u63a5\u603b\u7ebf\uff0c\u652f\u6301\u8bbe\u5907\u95f4\u7684\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u4e3b\u8981\u7528\u4e8e\u63d0\u9ad8\u8ba1\u7b97\u673a\u7cfb\u7edf\u603b\u7ebf\u6570\u636e\u541e\u5410\u91cf\u4ee5\u53ca\u8bbe\u5907\u901a\u4fe1\u901f\u5ea6\u3002\u6b64\u5916\uff0c\u8fd8\u6709\u5982I2C\u3001SPI\u3001CAN\u548cI2S\u7b49\u5176\u4ed6\u7ecf\u5178\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u5b83\u4eec\u5728\u5d4c\u5165\u5f0f\u9886\u57df\u5185\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u80fd\u591f\u9002\u5e94\u4e0d\u540c\u7684\u5e94\u7528\u9700\u6c42\uff0c\u5305\u62ec\u901a\u4fe1\u901f\u5ea6\u3001\u4f20\u8f93\u8ddd\u79bb\u3001\u7cfb\u7edf\u590d\u6742\u5ea6\u548c\u6210\u672c\u7b49\u591a\u4e2a\u65b9\u9762\u3002\u8fd9\u4e9b\u534f\u8bae\u7684\u53d1\u5c55\u548c\u5e94\u7528\uff0c\u5c55\u793a\u4e86\u4e32\u53e3\u901a\u4fe1\u6280\u672f\u5728\u4e0d\u65ad\u6f14\u8fdb\u548c\u521b\u65b0\u4e2d\uff0c\u4ee5\u6ee1\u8db3\u73b0\u4ee3\u5de5\u4e1a\u548c\u901a\u4fe1\u9886\u57df\u7684\u9700\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5982\u4f55\u89e3\u51b3RS-485\u534f\u8bae\u4e2d\u7684\u4fe1\u53f7\u8870\u51cf\u548c\u4e32\u6270\u95ee\u9898?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u89e3\u51b3RS-485\u534f\u8bae\u4e2d\u7684\u4fe1\u53f7\u8870\u51cf\u548c\u4e32\u6270\u95ee\u9898\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ul 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