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 <title><![CDATA[SD卡开发困惑之二]]></title>
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 <description><![CDATA[Latest 20 replies of SD卡开发困惑之二]]></description>
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 <description><![CDATA[建议你动手之前先认真看看SD的spec]]></description>
 <link><![CDATA[http://www.aiothome.net/read.php?tid=2510#7779]]></link>
 <author><![CDATA[kasim]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Mon, 20 Jul 2009 03:20:01 +0000]]></pubdate>
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 <description><![CDATA[此问题已经解决，CMD9必须在卡处于stand-by状态下执行，而我的指令发送次序是CMD0、CMD55+ACMD41、CMD2、CMD3，CMD7，CMD55+ACMD6，CMD9。而CMD7之后卡已经从stand-by状态进入transfer状态，故而发送CMD9指令会遇到响应超时。

调整下指令发送次序即可，调整后次序为：CMD0、CMD55+ACMD41、CMD2、CMD3，CMD9，CMD7，CMD55 ..]]></description>
 <link><![CDATA[http://www.aiothome.net/read.php?tid=2510#7777]]></link>
 <author><![CDATA[ahoo1225]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Mon, 20 Jul 2009 03:17:39 +0000]]></pubdate>
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