描述
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<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;">使用国民技术ARM Cortex-M4内核芯片N32G430C8L7,加上德州仪器INA199A1实现的USB电压、电流、功率计,扩展了简单RGB彩灯。</p>
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<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;">嘉立创2022暑期训练营</p>
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<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;">GPL 3.0</p>
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<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>
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<div class="document">使用立创EDA专业版画图。扩展的RGB彩灯,每种颜色的LED共用一个IO配合三极管进行驱动。</div>
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<div class="document"><br><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;">编译环境:</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;">Keil uVision V5.25</p>
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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;">烧录工具:</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;">Pwlink2</p>
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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;">参考代码:</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;">【1】训练营示例工程《N32G430C8L7-USBMeter》</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】国民技术官方示例:n32g430_EVAL\examples\GPIO\Led_Blink</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】国民技术官方示例:n32g430_EVAL\examples\TIM\TIM_Demo\TIM_Basic</p>
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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;">扩展的LED彩灯代码主要如下:</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;">void led_rgb(uint32_t x) //点灯程序<br>{<br> switch(x)<br> {<br> case 1:<br> LED1_ON; LED2_OFF; LED3_OFF; //红<br> break;<br> <br> case 2:<br> LED2_ON; LED1_OFF; LED3_OFF; //绿<br> break;<br> <br> case 3:<br> LED3_ON; LED1_OFF; LED2_OFF; //蓝<br> break;<br> <br> case 4:<br> LED1_ON; LED3_ON; LED2_OFF; //蓝红 <br> break;<br> <br> case 5:<br> LED1_ON; LED2_ON; LED3_OFF; //红绿<br> break;<br> <br> case 6:<br> LED2_ON; LED3_ON; LED1_OFF; //绿蓝 <br> break;<br> <br> case 7:<br> LED1_ON; LED2_ON; LED3_ON; //红绿蓝 <br> break;<br> <br> default:<br> break;<br> }<br>}</p>
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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;">void TIM6_IRQHandler(void) //定时器中断服务函数<br>{<br> static uint32_t tt = 1;<br> if (TIM_Interrupt_Status_Get(TIM6, TIM_INT_UPDATE) != RESET)<br> {<br> TIM_Interrupt_Status_Clear(TIM6, TIM_INT_UPDATE);<br> <br> cnt++; //cnt是全局变量<br> if(cnt>50) //设置定时<br> {<br> cnt = 0; <br> <br> tt++;<br> if(tt>7) tt = 1;<br> <br> led_rgb(tt);//tt范围1到7,对应7种颜色<br> }<br> }<br>}</p>
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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;">最初打算做PWM渐变灯的,但是由于MCU的IO口没有独立引出,并且MCU在屏幕下方,给调试带来了很大不便。折腾了很久没有进展,最后改为相对更简单的RGB灯。</p>
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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;">实物完成后,经过多次测试,用手机充电器供电,</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;">功率计OLED显示的电压值比万用表测得的值高0.2V至0.3V,</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;"> OLED显示的电流值与万用表200mA档测得的值基本一致。第3张照片,功率计电流0.11A,万用表测得113mA。</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;">USB功率计总体精度满足个人使用需求。</p>
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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;">参加这次训练营,得到了一个非常实用的测量工具。这次训练营真的值!感谢嘉立创&国民技术!</p>
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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;">实物照片如下:</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;"><img src="//image.lceda.cn/pullimage/Hj7nxY1NqhSo46tsYnolfig8PnuKUUwGUYH54hxF.jpeg" alt="" width="653" height="490"><img src="//image.lceda.cn/pullimage/pX0OYXjkRCkFJTQbIOYTQxhlXzbCi1IgZEUa6ejj.jpeg" alt="" width="653" height="490"><img src="//image.lceda.cn/pullimage/5aLzDcHxjxoNORfSEDMaVa6dLvliIZWhk4xPy8LW.jpeg" alt="" width="653" height="870"><img src="//image.lceda.cn/pullimage/2Bhodj8MNJ4M0XIeiGCGbqYdXUmUt5KOGymgZCdo.jpeg" alt="" width="653" height="490"><img src="//image.lceda.cn/pullimage/rV8UcKKkYIgFOpTmJ2dGiNTWks6MZFRSeK6EqMXb.jpeg" alt="" width="653" height="490"><img src="//image.lceda.cn/pullimage/fbOtqGYMDpqlZ3svgL6OdFPaikSVxf540AeCRzOk.jpeg" alt="" width="653" height="870"></p>
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<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"><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>
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<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>
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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;">B站链接:<a href="https://www.bilibili.com/video/BV1AS4y1s72h?spm_id_from=333.337.search-card.all.click&vd_source=52d9aa1d12b4e4017271eb13df97e091" target="_blank">https://www.bilibili.com/video/BV1AS4y1s72h?spm_id_from=333.337.search-card.all.click&vd_source=52d9aa1d12b4e4017271eb13df97e091</a></p>
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