IIC
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class="link_postdate">2012-06-27 11:27</span> <span class="link_view" title="阅读次数">12115人阅读</span> <span class="link_comments" title="评论次数"> <a href="#comments" onclick="_gaq.push(['_trackEvent','function', 'onclick', 'blog_articles_pinglun'])">评论</a>(9)</span> <span class="link_collect tracking-ad" data-mod="popu_171"> <a href="javascript:void(0);" onclick="javascript:collectArticle('IIC%e6%97%b6%e5%ba%8f%e8%af%a6%e8%a7%a3','7695547');return false;" title="收藏" target="_blank">收藏</a></span> <span class="link_report"> <a href="#report" onclick="javascript:report(7695547,2);return false;" title="举报">举报</a></span> </div> </div> <style type="text/css"> .embody{ padding:10px 10px 10px; margin:0 -20px; border-bottom:solid 1px #ededed; } .embody_b{ margin:0 ; padding:10px 0; } .embody .embody_t,.embody .embody_c{ display: inline-block; margin-right:10px; } .embody_t{ font-size: 12px; color:#999; } .embody_c{ font-size: 12px; } .embody_c img,.embody_c em{ display: inline-block; vertical-align: 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'blog_articles_fenlei']);">驱动相关<em>（6）</em></span> <img class="arrow-down" src="http://static.blog.csdn.net/images/arrow_triangle _down.jpg" style="display:inline;"> <img class="arrow-up" src="http://static.blog.csdn.net/images/arrow_triangle_up.jpg" style="display:none;"> <div class="subItem"> <div class="subItem_t"><a href="http://blog.csdn.net/peng654321/article/category/1060264" target="_blank">作者同类文章</a><i class="J_close">X</i></div> <ul class="subItem_l" id="top_1060264"> </ul> </div> </label> </div> </div> <div id="article_content" class="article_content tracking-ad" data-mod="popu_307" data-dsm="post"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">AT24C02是由ATMEL公司提供的，IIC总线串行EEPROM(electronic eraser programmer read only memory)，其容量为2kbit（256B），工作电压在2.7v"5.5v之间，生产工艺是CMOS。 </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314814.gif" alt="" width="422" height="147" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">一般数字芯片都在左下角和右上角为GND,VCC。容量的计算方法:AT24Cxx :01"1024 </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">容量 = xx * 1kbit。 </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">写入过程： </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">AT24C系列EEPROM芯片的固定部分为1010，A2，A1，A0引脚接高低电平后得到确定的3位编码，形成7位编码即为该器件的地址码。 </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">单片机进行写操作时，首先发送该器件的7位地址码和写方向位”0”(共8位，即一个字节),发送完后释放SDA线并在SCL线上产生第9个时钟信号。被选中的存储器器件在确认是自己的地址后，在SDA线上产生一个应答信号作为响应，单片机收到应答后就可以传送数据了。传送数据时，单片机首先发送一个字节的被写入存储器的首地址，收到存储器器件的应答后，单片机就逐个发送数据字节，但每发送一个字节后都要等待应答。AT24C系列片内地址在接收到每一个数据字节地址后自动加1，在芯片的“一次装载字节数”限度内，只需输入首地址。装载字节数超过芯片的“一次装载字节数”时，数据地址将“上卷”，前面的数据将被覆盖。 </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314815.gif" alt="" width="600" height="27" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">字节写: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314816.gif" alt="" width="600" height="110" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">页写： </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314817.gif" alt="" width="600" height="136" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">读入过程: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">单片机先发送该器件的7位地址码和写方向位“0”（“伪写”），发送完后释放SDA线并在SCL线上产生第9个时钟信号。被选中的存储器器件在确认是自己的地址后，在SDA线上产生一个应答信号作为回应。 </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">然后，再发一个字节的要读出器件的存储区的首地址，收到应答后，单片机要重复一次起始信号并发出器件地址和读方向位（“1”），收到器件应答后就可以读出数据字节，每读出一个字节，单片机都要回复应答信号。当最后一个字节数据读完后，单片机应返回以“非应答”（高电平），并发出终止信号以结束读出操作。 </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314818.gif" alt="" width="600" height="31" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">当前地址读: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314819.gif" alt="" width="600" height="152" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">随机读: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314820.gif" alt="" width="600" height="152" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">有序读: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314821.gif" alt="" width="600" height="167" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">IIC总线模拟时序图: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314822.gif" alt="" width="600" height="216" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">IIC总线应答时序图: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314823.gif" alt="" width="600" height="153" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">设备地址: </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314824.gif" alt="" width="591" height="200" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"> </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><span style="font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left">写周期： </span><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><img src="http://www.eechina.com/image/tech/2011032211314825.gif" alt="" width="600" height="146" style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; font-size:14px; line-height:24px; text-align:left"><br style="word-wrap:break-word; font-family:Verdana,宋体,Arial,sans-serif; 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title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/luoqiaosheng" target="_blank"><img src="http://avatar.csdn.net/8/1/6/3_luoqiaosheng.jpg" width="40" height="40"></a></dd><dd class="comment_body">为什么SDA时序图是那样的</dd></dl><dl class="comment_item comment_topic" id="comment_item_3932957"><dt class="comment_head" floor="4">4楼 <span class="user"><a class="username" href="/hushup" target="_blank">hushup</a> <span class="ptime">2014-06-06 16:51发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="3932957" username="hushup"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/hushup" target="_blank"><img src="http://avatar.csdn.net/5/F/7/3_hushup.jpg" width="40" height="40"></a></dd><dd class="comment_body">请问应答信号为什么是尖的呢</dd><dl class="comment_item comment_reply" id="comment_item_3933547"><dt class="comment_head" floor="4">Re: <span class="user"><a class="username" href="/peng654321" target="_blank">DriverMonkey</a> <span class="ptime">2014-06-06 20:51发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="3933547" username="peng654321"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/peng654321" target="_blank"><img src="http://avatar.csdn.net/7/6/7/3_peng654321.jpg" width="40" height="40"></a></dd><dd class="comment_body">回复hushup：因为同一个信号线，数据master 发出的，应答SLAVE发出的，两个芯片的地基准，和高电平基准不一样</dd><dl class="comment_item comment_reply" id="comment_item_3938747"><dt class="comment_head" floor="1">Re: <span class="user"><a class="username" href="/hushup" target="_blank">hushup</a> <span class="ptime">2014-06-08 23:24发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="3938747" username="hushup"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/hushup" target="_blank"><img src="http://avatar.csdn.net/5/F/7/3_hushup.jpg" width="40" height="40"></a></dd><dd class="comment_body">回复DriverMonkey：e 可以再讲详细点吗</dd><dl class="comment_item comment_reply" id="comment_item_3944439"><dt class="comment_head" floor="1">Re: <span class="user"><a class="username" href="/peng654321" target="_blank">DriverMonkey</a> <span class="ptime">2014-06-10 22:23发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="3944439" username="peng654321"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/peng654321" target="_blank"><img src="http://avatar.csdn.net/7/6/7/3_peng654321.jpg" width="40" height="40"></a></dd><dd class="comment_body">回复hushup：已经到我能够详细的程度了</dd><dl class="comment_item comment_reply" id="comment_item_3946795" style="margin-left:0;"><dt class="comment_head" floor="1">Re: <span class="user"><a class="username" href="/hushup" target="_blank">hushup</a> <span class="ptime">2014-06-11 12:22发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="3946795" username="hushup"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/hushup" target="_blank"><img src="http://avatar.csdn.net/5/F/7/3_hushup.jpg" width="40" height="40"></a></dd><dd class="comment_body">回复DriverMonkey：谢谢了</dd></dl></dl></dl></dl></dl><dl class="comment_item comment_topic" id="comment_item_3550029"><dt class="comment_head" floor="3">3楼 <span class="user"><a class="username" href="/skynic" target="_blank">skynic</a> <span class="ptime">2014-03-04 18:36发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="3550029" username="skynic"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/skynic" target="_blank"><img src="http://avatar.csdn.net/B/6/A/3_skynic.jpg" width="40" height="40"></a></dd><dd class="comment_body">真心有用</dd></dl><dl class="comment_item comment_topic" id="comment_item_2332298"><dt class="comment_head" floor="2">2楼 <span class="user"><a class="username" href="/peng654321" target="_blank">DriverMonkey</a> <span class="ptime">2012-08-11 09:44发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="2332298" username="peng654321"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/peng654321" target="_blank"><img src="http://avatar.csdn.net/7/6/7/3_peng654321.jpg" width="40" height="40"></a></dd><dd class="comment_body">我现在用的设备没有Datasheet很悲剧</dd></dl><dl class="comment_item comment_topic" id="comment_item_2330976"><dt class="comment_head" floor="1">1楼 <span class="user"><a class="username" href="/luoxiao1983" target="_blank">落潇A</a> <span class="ptime">2012-08-10 10:16发表</span> <a href="#reply" class="cmt_btn reply" title="回复">[回复]</a> <span class="comment_manage" style="display:none;" commentid="2330976" username="luoxiao1983"> <a href="#quote" class="cmt_btn quote" title="引用">[引用]</a> <a href="#report" class="cmt_btn report" title="举报">[举报]</a></span></span></dt><dd class="comment_userface"><a href="/luoxiao1983" target="_blank"><img src="http://avatar.csdn.net/B/1/1/3_luoxiao1983.jpg" width="40" height="40"></a></dd><dd class="comment_body">这个在eeprm的datasheet里有啊，讲的很详细。能否有其他iic设备的写入时序。最好有时序测试的图形。</dd></dl><div class="clear"></div></div> <div id="comment_bar" style="display: none;"> </div> <div id="comment_form"><a name="commentbox"></a><a name="reply"></a><a name="quote"></a><form action="/peng654321/comment/submit?id=7695547" method="post" onsubmit="return subform(this);"><div class="commentform"><div class="panel_head">发表评论</div><ul><li class="left">用 户 名：</li><li class="right">chengyuanJJ</li></ul><ul><li class="left">评论内容：</li><li class="right" style="position:relative;"><div id="ubbtools"><a href="#insertcode" code="code"><img src="http://static.blog.csdn.net/images/ubb/code.gif" border="0" alt="插入代码" title="插入代码"></a></div><div id="lang_list" style="position: absolute; top: 28px; left: 0px; 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