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Sci\uff08Serial Communication Interface\uff09\u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\uff0c\u5b83\u53ef\u4ee5\u5b9e\u73b0\u5355\u7ebf\u53cc\u5411\u6570\u636e\u4f20\u8f93\u3002\u5b83\u7684\u7279\u70b9\u662f\u6570\u636e\u4f20\u8f93\u7684\u901f\u5ea6\u6bd4\u8f83\u5feb\uff0c\u4f46\u4f20\u8f93\u8ddd\u79bb\u8f83\u77ed\uff0c\u4e00\u822c\u53ea\u80fd\u4f20\u8f93\u51e0\u7c73\u7684\u8ddd\u79bb\u3002Sci\u901a\u5e38\u4f7f\u7528RS-232\u6216RS-485\u4f5c\u4e3a\u7269\u7406\u5c42\u7684\u4f20\u8f93\u4ecb\u8d28\uff0c\u5b83\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528\u7f51\u7edc\u6280\u672f\u8fdb\u884c\u8fdc\u7a0b\u901a\u4fe1\u3002<\/p>\n
Uart\uff08Universal Asynchronous Receiver\/Transmitter\uff09\u662f\u4e00\u79cd\u5f02\u6b65\u6536\u53d1\u5668\uff0c\u5b83\u53ef\u4ee5\u5b9e\u73b0\u5355\u7ebf\u53cc\u5411\u6570\u636e\u4f20\u8f93\u3002\u5b83\u7684\u7279\u70b9\u662f\u6570\u636e\u4f20\u8f93\u7684\u8ddd\u79bb\u6bd4\u8f83\u8fdc\uff0c\u4e00\u822c\u53ef\u4ee5\u4f20\u8f93\u51e0\u5341\u7c73\u7684\u8ddd\u79bb\u3002Uart\u901a\u5e38\u4f7f\u7528RS-232\u4f5c\u4e3a\u7269\u7406\u5c42\u7684\u4f20\u8f93\u4ecb\u8d28\uff0c\u5b83\u4e5f\u53ef\u4ee5\u4f7f\u7528\u7f51\u7edc\u6280\u672f\u8fdb\u884c\u8fdc\u7a0b\u901a\u4fe1\u3002<\/p>\n
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