NE5532的主页 - 21ic电子技术开发论坛

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class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>98</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>15988</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">帖子因隐私问题而隐藏</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2478834-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">使用气体烙铁的要当心了!</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2018-2-18 07:58</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>情感婚姻研习社</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>23</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>6985</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">然后旁边那个妹纸送他去医院，顺便发展了一下，之后楼主的单位就都流行燃气烙铁了，插电的买回来都没人用。 ...</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2404626-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">一节干电池的防反接电路设计求助与探讨</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2018-1-9 18:57</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>电子技术交流论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>16</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>3305</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">结构能做到，不耗费电压降，而且也简单啊。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2397704-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">大家聊下不规则的PCB怎么画，</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2018-4-11 07:09</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>侃单片机论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>16</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>2153</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">AD一样画，没有那么方便而已。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2398684-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">怎样用stm32F104扩充200个左右的IO口</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2018-2-5 09:44</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>ST MCU</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>37</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>7989</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">不知道30个595的钱够不够你买个200IO的FPGA，不考虑速度，最简单的办法才是好办法。 ...</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2397046-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">关于继续从事硬件工作还是转FPGA工程师，嵌入式工程师（安卓系统及驱动）的讨论</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2018-3-15 22:01</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>电子技术交流论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>13</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>4439</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">我见过很多电子类企业研发部，部长是做机械设计出身的。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2396408-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">关于[鼓励技术讨论，严禁人身攻击]中讨论和攻击的界定！</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2017-12-8 14:21</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>模拟技术论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>30</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>2639</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">斑竹表示，一般不要出现国骂、某种偶蹄类动物，某种长寿爬行动物之类，无意义的堆楼，我们一般还是不会“动 ...</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2395896-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">SPI转串口电路分析</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2017-12-6 11:34</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>电子技术交流论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>7</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>4492</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">IO模拟，MCU的负担很重，你能找到芯片就用芯片吧。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2391382-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">关于C52单片机IO口能否接12V</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2018-4-10 21:29</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>侃单片机论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>15</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>3359</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">不行，等着看单片机冒烟吧。找个NPN的管子转接一次就可以了。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2386652-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">省电</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2017-11-25 21:10</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>Microchip</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>9</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>1277</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">用万用表电压档（最好是mV档）测这些电阻上是否存在压降，以判断是否端口源入了电流。 ...</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">二极管去掉以后，你不需要加入电流的单片机端口支路（原来肯定是输出0）是怎么处理的呢？是不是应该设置为 ...</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">L1-L6是什么东西？给的信息太少，无法分辨。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-640778-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">〓◆ 完整的数字设计鲍尔奇英文版 485页 34.4M ◆〓</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2020-3-28 11:36</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>电子技术交流论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>21</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>5000</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">T叔，好书，收藏~！</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2271394-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">求低成本段码屏MCU方案</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2021-1-27 11:01</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>侃单片机论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>32</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>6556</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">海尔，抄PIC的，还有Holtek的也有。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2390398-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">使用IO模拟9600串口接收数据不稳定求指教</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2019-9-19 09:55</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>侃单片机论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>9</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>2915</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">有没有其他中断，干扰采样点？我原来用另一个端口在采样点翻转，然后示波器双踪来看采样点是否在位中心，每 ...</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2390504-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">问下单片机最大时钟为16MHZ时，让单片机工作在16Mhz下好还是8Mhz下稳定</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2017-11-30 18:33</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>侃单片机论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>8</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>2707</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">能慢就慢，没事跑那么快费电啊。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2388518-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">请大家帮忙分析下此电路的工作流程。</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2017-11-17 14:21</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>模拟技术论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>10</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>1185</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">准确说，限流吧。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2388484-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">求助51单片机怎么做IAP自升级</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2020-6-4 10:02</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>侃单片机论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>21</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>5657</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">先要硬件支持，然后如果MCU自己不带这种软件，就要自己写程序了。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> </div> </div> </div> </a> <a class="list-group-item list-group-item-action" href="https://bbs.21ic.com/icview-2394872-1-1.html" target="_blank"> <div class="media"> <div class="thumbnail thumbnail-sm"> <i class="icon-text-document-inverted text-primary h4"></i> </div> <div class="media-body"> <div> <h5 class="h6 my-1">关于I2C总线的问题</h5> <div class="row"> <span class="col-auto text-muted text-small" title="最新回复时间">2017-12-6 08:15</span> <ul class="col-auto list-inline text-small text-muted"> <li class="list-inline-item" title="版块"><i class="icon-folder mr-1"></i>侃单片机论坛</li> <li class="list-inline-item" title="回复"><i class="icon-message mr-1"></i>13</li> <li class="list-inline-item" title="查看"><i class="icon-user mr-1"></i>1473</li> </ul> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">这个叫应答，请仔细看协议。</span>  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif"> </div> <div class="text-muted text-small mt-1">  <img style="vertical-align:middle;" src="https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif"> <span style="color: #777;">SDA是你自己控制的，你问人家干吗？从器件要声明在忙，只会拉低SCL。另外你问的是写入1Byte以后ACK为低么？ ...</span>  <img style="vertical-align:middle;" 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