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 <title><![CDATA[485通讯问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472869.html]]></link>
 <description><![CDATA[Latest 50 replies of 485通讯问题]]></description>
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 <description><![CDATA[我也很怕通讯的东东，看不见摸不着，通讯不上都不知道该咋整]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472869#1622676.html]]></link>
 <author><![CDATA[huamantang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2014 09:39:43 +0000]]></pubdate>
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 <description><![CDATA[三楼说的很正确。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472869#1622642.html]]></link>
 <author><![CDATA[zhanghao6789]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2014 08:12:14 +0000]]></pubdate>
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 <description><![CDATA[云里雾里呀，看不到摸不着的东西--通讯]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472869#1622596.html]]></link>
 <author><![CDATA[waitfor]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2014 06:23:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[RS485只是串行通信的一种标准物理接口，要通讯还要按照通讯协议写程序才行。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472869#1622516.html]]></link>
 <author><![CDATA[泡桐树]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2014 02:38:27 +0000]]></pubdate>
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 <description><![CDATA[485只是指定的物理协议，即规定的电压等级，导线规范以及其他的各类工作方式。也就是硬件类型！！！！！ [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472869#1622465.html]]></link>
 <author><![CDATA[leechonghua]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2014 00:03:25 +0000]]></pubdate>
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 <description><![CDATA[不是。通讯协议也得是相同的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472869#1622441.html]]></link>
 <author><![CDATA[lnxcy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 24 Nov 2014 22:06:29 +0000]]></pubdate>
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