描述
<div class="document">
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 1、项目功能介绍</h3>
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<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">在日常调试过程中,我们会使用到很多需要和上位机协同进行调试或者工作的模块。在调试过程中,我们会连接鼠标、键盘和副屏等外设来进行辅助调试。同一时间我们可能会连接七八个usb设备。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">这种情况下,我们的使用的电脑,尤其是笔记本电脑,上面自带的接口可能会不够用,而由于很多外设实际传输的数据量并不大,一个usb2.0的速率就能够满足所有接口传输的数据量。所以我们会需要usb集线器帮助我们外接更多的设备。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">同时,作为硬件同学初步认识、学习usb接口,自制一个usb集线器也能够帮助我们</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*2、项目属性</h3>
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<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">首次公开,原创。开源对应的pcb设计、亚克力外壳设计。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 3、开源协议</h3>
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<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">基于cc0进行开源,即放弃关于该内容的所有权利,大家可以随意更改并商用。(过程中使用到的部分元器件封装可能是其他开源协议,该内容根据其开源协议进行开源,这里开源的只是该封装的摆放和使用方式)</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*4、硬件部分</h3>
<hr class="horizontal-splitline normal-bold-2">
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">总共画了三版,v0.1用于验证方案,v0.2用做泰山派拓展(做了音频口,但是不好用,所以未上传),v1.0是根据实际需求制作的,方便连接和使用,并绘制了亚克力外壳。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/eevzGcsECOhywjfuDKQMJSa5MSXOGqzsgdzGKwBz.png"></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8; text-align: center;"><span style="color: #95a5a6; font-size: 14px;">v0.1与v0.2版本</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/QSX6qhIKJ3L98bMUlnhyGYTRRGgoaDLgJvRmbaUE.png"></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8; text-align: center;"><span style="color: #95a5a6; font-size: 14px;">v1.0版本</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">使用SL2.1A 作为主控,SL2.1A 是一颗高集成度,高性能,低功耗的 USB2.0 集线器主控芯片;该芯片采用 STT 技术,单电源供电方式,芯片供电电压为 5v, 内部集成 5V 转 3.3V,只需在外部电源添加滤波电容;芯片自带复位电路。 </span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">芯片可以使用外部晶体,也可以使用内置晶体。这里使用外部的12M晶振,让其运行的更加稳定。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">输入部分使用常用的typec接口,这里也可以改为其他usb接口,让焊接更加简单。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/ysdxQEPQzISSHYGKAU84qhSVXZ49QP1e7FmojfV7.png" width="320" height="351"></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">因为总体只需要5V供电,所以不需要额外的稳压电路,为了避免连接其他充电设备时导出过大电压损伤后面设备,我们需要姜两个cc引脚通过5.1k电阻接地,来传递信号。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">电源输入通过自恢复保险丝防止后端短路(当然,现在大部分上端设备都会有防止后端短路的电路设计,但保险起见,我们加个保险丝)。然后通过一个肖特基二极管用于防止反接,正常工作在反向截止状态。(有时候也用不到防反接,所以可焊可不焊,看具体需求),使用led用于指示电源是否导通,短路时保险丝处断开,led不亮,具体阻值根据实际需求焊接。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/2t6QyvOZnVpJCU3lQVBC2scYP2k2ZBIQDDje8H9K.png"></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">芯片的外围电路参考芯片手册的电路进行设计,对两个电源进行进行滤波,同时对输入电源也进行滤波。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/BavvQPhqpQ9pPIcC8aCH0ncm51K9MRDHL7JIkVMa.png" width="317" height="309"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/pHRnOwGT72H5E0PQvUrXQbHKJI1z8EksSVBWcl9E.png" width="589" height="293"></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">pcb整体设计如图:</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/GuRNv6Q4OG9LIWQS3o2nbgMKQx9eQgS3DCocqsr0.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">对晶振进行见到那的包地处理,usb信号线比较短,这里我做了等长,实际上5v差分信号的抗干扰能力还是很强的。供电部分鱼信号部分通过地隔离开,减少了电源对信号的干扰。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">硬件焊接、测试流程:</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">1、焊接usb输入部分</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/PQsXCV1v1wpLSmUHWtmthc1nOmZq6hxq8Bpoj4PD.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">这里记得好好焊接typec母座后面的固定点,不然就会发生如下惨案:</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/8GO0qAAMHn2jPsuyijcxCK7cE4j62OXSpyJG0nGj.png" width="538" height="431"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/8cZdFssS3x9nUrk19746XDQNgyQQQmKB9JvpxG0a.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">如图焊完typec输入部分的电路后,先使用万用表通断、二极管挡位进行测试。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">万用表测量方式:先测量板子上的正负极有无相连,相连的话可以观察typec母座、左上角滤波电容是否相连。然后观察typec每一个引脚是否连锡,如果有怀疑的可以进行测量检查是否连锡。测量自恢复保险丝是否焊接好,测量vcc网络和+5v网络是否相通。最后在+5v网络和gnd网络上使用二极管挡位,可以观察到led灯微亮,说明焊的led方向正确。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">然后接上typec线观察led灯是否正常亮起,正常亮起进行下一步,未亮起按上面的一步一步测来了解那一个元器件出了问题。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/9URCbqtHKNVoEwhowhmnWnT9ZGK7LXab6uT4sz7S.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">2、焊接usb芯片部分</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/XDjoyHt3aiOR1DMB9ED2f7n9OTVVGYD1kvOtUehW.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">焊接完成后,先测量+5v和gnd是否短接,然后用电脑连接,可以听到电脑连接上设备的提示音,说明设备运作正常,当然,由于芯片内部自带晶振,所以不能够说明晶振运作正常,如果需要检测,可以使用示波器观察外部晶振的波形,在使用内部晶振的情况下,可能会不太稳定。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">3、焊接usb接口</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">焊接完成后,先测量+5v和gnd是否短接,然后用电脑连接,可以听到电脑连接上设备的提示音。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">然后连接设备,可以是u盘,可以是手机,然后使用每一个口都可以在电脑上正常访问设备说明焊接成功。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">4、清洗pcb板</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">在完成焊接和测试后,我们可以先清洗一下pcb板,然后再安装pcb外壳。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/oZsU2HvSKYkXxEAmEPWih3B1g1qvwyWK35Wdf7am.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">5、安装亚克力外壳</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">使用m3*8孔径的八个沉头螺丝和m3*12的四个铜柱。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/8kXf8xpcslttBv1W42c95KoeCh6yDrgAh5On2hBH.png" width="407" height="366"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">先安装底部的螺丝和螺柱。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/ZvPiqIVPlC2PGlFuRlsoUjVJt6vwvAFADlDP6RJv.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">然后在顶部安装亚克力板。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/sBta9bCZtonr7T6g8YQro98rtvFlGqWdFtSUrrhV.png"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"> 注:请前往<span style="text-decoration: underline;"><a href="https://lceda.cn/editor" target="_blank">嘉立创EDA</a> </span>生成/上传设计文件,文件完成后,相关文稿将自动生成至项目详情;这里可以详细说明您的项目实现原理和机制、注意事项、调试方法、测试方法等。推荐图文并茂的形式向别人介绍您的想法。 </span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*5、软件部分</h3>
<hr class="horizontal-splitline normal-bold-2">
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">无</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*6、BOM清单</h3>
<hr class="horizontal-splitline normal-bold-2">
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">请输入内容…</span></p>
<table width="800">
<tr>
<td width="160" height="18">No.</td>
<td width="160">Quantity</td>
<td width="160">Comment</td>
<td width="160">Designator</td>
<td width="160">Footprint</td>
</tr>
<tr>
<td height="18">1</td>
<td align="right">6</td>
<td>10uF</td>
<td>C1,C5,C6,C8,C10,C12</td>
<td>C0603</td>
</tr>
<tr>
<td height="18">2</td>
<td align="right">5</td>
<td>0.1uF</td>
<td>C2,C7,C9,C11,C13</td>
<td>C0603</td>
</tr>
<tr>
<td height="18">3</td>
<td align="right">2</td>
<td>100nF</td>
<td>C3,C4</td>
<td>C0603</td>
</tr>
<tr>
<td height="18">4</td>
<td align="right">1</td>
<td>LED-0603</td>
<td>D1</td>
<td>LED0603-RD_WHITE</td>
</tr>
<tr>
<td height="18">5</td>
<td align="right">1</td>
<td>SMF6.0A</td>
<td>D2</td>
<td>SOD-123FL_L2.8-W1.8-LS3.8-RD</td>
</tr>
<tr>
<td height="18">6</td>
<td align="right">4</td>
<td>125 X 300</td>
<td>K1,K2,K3,K4</td>
<td>125 X 300</td>
</tr>
<tr>
<td height="18">7</td>
<td align="right">2</td>
<td>5.1K</td>
<td>R1,R2</td>
<td>R0603</td>
</tr>
<tr>
<td height="18">8</td>
<td align="right">1</td>
<td>2K</td>
<td>R3</td>
<td>R0603</td>
</tr>
<tr>
<td height="18">9</td>
<td align="right">1</td>
<td>SL2.1A</td>
<td>U1</td>
<td>SOP-16_L10.0-W3.9-P1.27-LS6.0-BL</td>
</tr>
<tr>
<td height="18">10</td>
<td align="right">1</td>
<td>1.5A快恢复保险丝-1206</td>
<td>U4</td>
<td>F1206</td>
</tr>
<tr>
<td height="18">11</td>
<td align="right">4</td>
<td>AF 10.0 HC6.3</td>
<td>USB1,USB3,USB4,USB5</td>
<td>USB-A-TH_AF-10.0-HC6.3</td>
</tr>
<tr>
<td height="18">12</td>
<td align="right">1</td>
<td>KH-TYPE-C-16P</td>
<td>USB6</td>
<td>USB-C-SMD_KH-TYPE-C-16P</td>
</tr>
<tr>
<td height="18">13</td>
<td align="right">1</td>
<td>12MHz</td>
<td>X1</td>
<td>CRYSTAL-SMD_L5.0-W3.2</td>
</tr>
</table>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">注:项目涉及的BOM清单。在<span style="text-decoration: underline;"><a href="https://lceda.cn/editor" target="_blank">嘉立创EDA</a> </span>生成/上传设计文件后,BOM将自动生成至项目详情;建议包括型号、品牌、名称、封装、采购渠道、用途等内容。具体内容和形式应以表达清楚项目构成为准。 </span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*7、大赛LOGO验证</h3>
<hr class="horizontal-splitline normal-bold-2">
<p style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/B2en9cMjxxAlKiTVrj1nPAnGcEoMcOsHWgKr54HG.png"></p>
<p style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/X9EfLtpoxhoxlaI2fk8FQFyFwfNOUkPdN9IOeGcl.png" width="513" height="393"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/pullimage/nrnPlnAtDeY3ssnJRW0huEQFuqIu5qRIQXaHcTNY.png" width="530" height="412"></p>
<p style="line-height: 1.8;"> </p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">请上传包含大赛logo的项目图片,logo以丝印形式印刷在PCB上面。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">点击zip下载大赛logo标识! <span style="text-decoration: underline;"><a href="https://image.lceda.cn/easyedaResource/images/d1bbfd69f9404f56901a0e7b849b7245.rar" target="_blank">(大赛标识).zip</a></span></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 8、演示您的项目并录制成视频上传</h3>
<hr class="horizontal-splitline normal-bold-2">
<p style="line-height: 1.8;">见下</p>
<p style="line-height: 1.8;">外壳文件见下</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频要求:请横屏拍摄,分辨率不低于1280×720,格式Mp4/Mov,单个视频大小限100M内;</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频标题:立创电赛:{项目名称}-{视频模块名称};如立创电赛:《自动驾驶》-团队介绍。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 14px;"><a href="/posts/de460543d4cf4dacb5f0326612455578" target="_blank">前往查看更多详情 ></a></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
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