<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> <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;">基于N32G430C8L7+INA199制作的USB电流表，精度1%，可以查看USB工作时候的电流。</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> <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;">立创暑假训练营，通过官方视频学习，自己画板子并修改部分代码。</span></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> <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;">GPL 3.0</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、踩过的坑</h3> <p><img src="//image.lceda.cn/pullimage/NDBjSWYDRahnx53e0j3mBISL53CTagxSVvWwvn8i.jpeg" alt="" width="1200" height="1200"></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;"> 尝试使用了3种烧录方式：PWLINK按照DAP link的配置即可，STLINK也没什么多说的，其中TTL下载需要注意必须将BOOT拉高才能烧录。之后将BOOT拉低可以正常工作。</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 src="//image.lceda.cn/pullimage/Cx7oexRpnMYjDxehs4H06JgdNm6IaEtLLeMam17c.jpeg" alt="" width="1200" height="1200"></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;">焊接问题：手不能抖，不能着急，我一直是擅长软件不太擅长硬件，焊的歪七扭八的，之后最后电流采样芯片太小了，我也是到了最后两个元件有点着急，一使劲把一个引脚和焊盘一起拽掉了。还是得更多的练习焊接。</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 src="//image.lceda.cn/pullimage/Rs3FkkjIEFBnaRITEVK3TKIuNeI3YCMXJzw1y5OP.jpeg" alt="" width="1200" height="1200"></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 src="//image.lceda.cn/pullimage/JzcbxAuFjky2MZpPwkhqp75OqLMKEQK7mu8EibRA.jpeg" alt="" width="1200" height="1200"></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;">画板子忘记挖导致这个只能飞锡了，大家要是不会画边缘还是直接复制粘贴官方工程吧，我这个最后虽然能用但是测量感觉精度有所下降。</p> <p style="line-height:1.8;"> 最后看看成品吧，有个外壳就能遮丑了，但是我个人还是比较喜欢直接看电路板的感觉有种朋克风。</p> <p style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/JxhNldOQGCKdv5ltmyOcmV6fDdQXcZpnAae502WF.jpeg" alt="" width="1200" height="854"></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 src="//image.lceda.cn/pullimage/h4QsdDxLWEeM0987OnbJhpyXqPYPSaw4qGJ5gpDv.jpeg" alt=""></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 src="//image.lceda.cn/pullimage/bRKPwjqn0xap8UtkJdVuCBooyRrb8YRZvQsB59QV.jpeg" alt="" width="688" height="390"></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;">当屏幕引脚改动时应修改如下三处代码：</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 src="//image.lceda.cn/pullimage/W4tAE2BHPGDHMRmbWN9Uwup3pdn3jxDmwfcnSsg3.jpeg" alt="" width="1200" height="1080"></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;"><img src="//image.lceda.cn/pullimage/PRNcruzw7ECXtEZXGraEzdy7WMkw40pkClDktEk9.jpeg" alt="" width="1200" height="1080"></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 src="//image.lceda.cn/pullimage/mzaG87cy8KZNwQnzQGEHRQiBD33tb74qVa6ZzhnN.jpeg" alt="" width="1200" height="1080"></p> </div>