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 <title><![CDATA[为何我的SPI 时钟不是方波？]]></title>
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 <description><![CDATA[Latest 20 replies of 为何我的SPI 时钟不是方波？]]></description>
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 <link><![CDATA[http://121.40.142.80/read.php?tid=18504#183653]]></link>
 <author><![CDATA[蔚蓝梦想]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Tue, 03 Jul 2012 02:38:27 +0000]]></pubdate>
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 <description><![CDATA[电子设备的输出的波形很少有非常完美的正方形，多少都有些毛刺或尖角，一般情况下符合TTL电气标准，芯片就可以正确识别。]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=18504#163909]]></link>
 <author><![CDATA[liupeng_ch]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Sun, 01 Apr 2012 14:37:47 +0000]]></pubdate>
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