描述
<h2>基于瑞萨的智能数码管时钟</h2>
<p> </p>
<h2>芯片使用瑞萨系列，使用数码管进行显示，并有温湿度aht20模块和蜂鸣器模块，面板上设有4个按键，添加了一个外部晶振模块</h2>
<p> </p>
<h2> </h2>
<p><span class="colour" style="color:#999aaa;"><br><br></span></p>
<h2>原理图设计说明</h2>
<p> </p>
<p><img src="//image.lceda.cn/pullimage/SrDGPDvag7V1a1qfDQAMFpxq0ND5UeVo02VlBeSO.png" width="384" height="391" alt="SrDGPDvag7V1a1qfDQAMFpxq0ND5UeVo02VlBeSO.png"></p>
<p>蜂鸣器模块</p>
<p><img src="//image.lceda.cn/pullimage/Lpfvkalqxs6kxwjQ8yWtiGAtiQOKULgx9ii7Mmh4.png" width="304" height="330" alt="Lpfvkalqxs6kxwjQ8yWtiGAtiQOKULgx9ii7Mmh4.png"></p>
<p>按键模块</p>
<p><img src="//image.lceda.cn/pullimage/ebqtF5N6OE3CcCpaGvu5zYxcV6ubi2xaTFYBYKJt.png" width="308" height="127" alt="ebqtF5N6OE3CcCpaGvu5zYxcV6ubi2xaTFYBYKJt.png"></p>
<p>温湿度模块</p>
<p><img src="//image.lceda.cn/pullimage/YkThJAPSu30rWfyjNyW6fEpbHa7vEJzPFr1ttSnO.png" width="424" height="209" alt="YkThJAPSu30rWfyjNyW6fEpbHa7vEJzPFr1ttSnO.png"></p>
<p>外部晶振模块</p>
<h2>PCB设计说明</h2>
<p>横平竖直，线尽量不要缠绕，减少过孔</p>
<p> </p>
<h2>软件说明</h2>
<pre><code></code></pre>
<p>void timer0_callback(timer_callback_args_t *p_args)<br>{<br> /* TODO: add your own code here */<br> if (TIMER_EVENT_CYCLE_END == p_args->event)<br> {<br> time_mode_num++;<br> if(time_mode_num>200)<br> time_mode_num=0;</p>
<pre><code></code></pre>
<p> if(smg_mode==0)<br> {<br> if(num_flag==0)<br> smg_1(num1);<br> else if(num_flag==1)<br> smg_2(num2);<br> else if(num_flag==2)<br> smg_3(num3);<br> else if(num_flag==3)<br> smg_4(num4);<br> else if(num_flag==4)<br> smg_maohao_open(1); //冒号<br> }<br> <br> Key_Scan();<br> <br> }<br> <br> <br> else if(smg_mode==1)//修改时间⼩时<br> {<br> if(time_mode_num</p>
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