汽车单片机及车载网络系统课件 项目二 单片机基础-汽车数码管的控制编程

汽车检测与维修专业核心课

汽车单片机及车载网络系统汽车工程系新能源汽车教研组汽车工程系新能源汽车教研组项目二：单片机基础汽车数码管的控制编程一位八段数码管的控制编程（4课时）

01应知、应会

02课程内容

03课后小结

04课堂考核本节课的我们应该完成的内容汽车工程系新能源汽车教研组Part01应知、应会汽车工程系新能源汽车教研组一位八段数码管的控制编程01了解数码管的管脚定义，工作原理汽车工程系新能源汽车教研组掌握软件程序的含义

03掌握硬件电路的接线方法02Part02课程内容汽车工程系新能源汽车教研组第一步、放置元件并连接负极线路1.硬件连接第二步、连接面包板右侧电路1.硬件连接第三步、连接面包板左下方电路1.硬件连接第四步、连接面包板左上方电路1.硬件连接//用一位八段数码管显示2路公交车线路号inta=7;intb=8;intc=9;intd=10;inte=11;intf=12;intg=13;voidsetup(){for(intn=7;n<=13;n++){pinMode(n,OUTPUT);}}voidloop(){digitalWrite(a,HIGH);digitalWrite(b,HIGH);digitalWrite(c,LOW);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,LOW);digitalWrite(g,HIGH);}2.软件编程Part03课后小结汽车工程系新能源汽车教研组本节课我们解决的三个问题是:1.数码管的管脚定义，工作原理2.硬件电路的接线方法3.软件程序的含义汽车工程系新能源汽车教研组Part04课堂考核汽车工程系新能源汽车教研组汽车工程系新能源汽车教研组1、用一位八段数码管显示5路公交车线路号2、用一位八段数码管循环显示0-9汽车工程系新能源汽车教研组项目二：单片机基础汽车数码管的控制编程四位八段数码管的控制编程（4课时）

01应知、应会

02课程内容

03课后小结

04课堂考核本节课的我们应该完成的内容汽车工程系新能源汽车教研组Part01应知、应会汽车工程系新能源汽车教研组四位八段数码管的控制编程01了解四位八段数码管的管脚含义，工作原理汽车工程系新能源汽车教研组掌握程序的含义03掌握硬件电路的接线02Part02课程内容汽车工程系新能源汽车教研组

四位八段数码管的硬件结构原理图：1.硬件连接

四位八段数码管的硬件结构原理图：1.硬件连接第一步、连接面包板左上部分电路1.硬件连接第二步、连接面包板右侧电路1.硬件连接第三步、连接面包板左下方电路1.硬件连接第四步、连接面包板COM口电路1.硬件连接//四位八段数码管显示确定的数字1234intt=2;inta=2;intb=3;intc=4;intd=5;inte=6;intf=7;intg=8;intdp=9;intcom1=10;intcom2=11;intcom3=12;intcom4=13;voidsetup(){for(intn=2;n<=13;n++){pinMode(n,OUTPUT);}}voidloop(){digitalWrite(com1,HIGH);digitalWrite(com2,LOW);digitalWrite(com3,LOW);digitalWrite(com4,LOW);digitalWrite(a,HIGH);digitalWrite(b,LOW);

2.软件编程

digitalWrite(c,LOW);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,HIGH);digitalWrite(dp,HIGH);delay(t);digitalWrite(com1,LOW);digitalWrite(com2,HIGH);digitalWrite(com3,LOW);digitalWrite(com4,LOW);digitalWrite(a,LOW);digitalWrite(b,LOW);digitalWrite(c,HIGH);

digitalWrite(d,LOW);digitalWrite(e,LOW);digitalWrite(f,HIGH);digitalWrite(g,LOW);digitalWrite(dp,HIGH);delay(t);digitalWrite(com1,LOW);digitalWrite(com2,LOW);digitalWrite(com3,HIGH);digitalWrite(com4,LOW);digitalWrite(a,LOW);digitalWrite(b,LOW);digitalWrite(c,LOW);digitalWrite(d,LOW);2.软件编程digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,LOW);digitalWrite(dp,HIGH);delay(t);digitalWrite(com1,LOW);digitalWrite(com2,LOW);digitalWrite(com3,LOW);digitalWrite(com4,HIGH);digitalWrite(a,HIGH);digitalWrite(b,LOW);

digitalWrite(c,LOW);digitalWrite(d,HIGH);digitalWrite(e,HIGH);

digitalWrite(f,LOW);digitalWrite(g,LOW);digitalWrite(dp,HIGH);delay(t);}2.软件编程调用函数xianshi(inti)switch(表达式){case值1:语句1break;case值2:语句2break;...

default:语句nbreak;}硬件接线与前一个任务一样，这里不再详细讲解，学生自主完成。3.趣味实验用四位数码管模拟汽车转速表//汽车数字转速表intn=4356;intt=2;inta=2;intb=3;intc=4;intd=5;inte=6;intf=7;intg=8;intdp=9;intcom1=10;intcom2=11;intcom3=12;intcom4=13;voidsetup(){for(intn=2;n<=13;n++){pinMode(n,OUTPUT);}}voidloop(){digitalWrite(com1,HIGH);digitalWrite(com2,LOW);digitalWrite(com3,LOW);digitalWrite(com4,LOW);xianshi(n/1000);delay(t);3.趣味实验用四位数码管模拟汽车转速表digitalWrite(com1,LOW);digitalWrite(com2,HIGH);digitalWrite(com3,LOW);digitalWrite(com4,LOW);xianshi(n/100%10);delay(t);digitalWrite(com1,LOW);digitalWrite(com2,LOW);digitalWrite(com3,HIGH);digitalWrite(com4,LOW);xianshi(n/10%10);delay(t);digitalWrite(com1,LOW);digitalWrite(com2,LOW);digitalWrite(com3,LOW);digitalWrite(com4,HIGH);xianshi(n%10);delay(t);}voidxianshi(inti){switch(i){case0:3.趣味实验用四位数码管模拟汽车转速表digitalWrite(a,LOW);digitalWrite(b,LOW);digitalWrite(c,LOW);digitalWrite(d,LOW);digitalWrite(e,LOW);digitalWrite(f,LOW);digitalWrite(g,HIGH);digitalWrite(h,HIGH);break;

case1:digitalWrite(a,HIGH);digitalWrite(b,LOW);digitalWrite(c,LOW);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,HIGH);digitalWrite(h,HIGH);break;

case2:digitalWrite(a,LOW);digitalWrite(b,LOW);digitalWrite(c,HIGH);digitalWrite(d,LOW);digitalWrite(e,LOW);digitalWrite(f,HIGH);3.趣味实验用四位数码管模拟汽车转速表digitalWrite(g,LOW);digitalWrite(h,HIGH);break;

case3:digitalWrite(a,LOW);digitalWrite(b,LOW);digitalWrite(c,LOW);digitalWrite(d,LOW);digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,LOW);digitalWrite(h,HIGH);break;case4:digitalWrite(a,HIGH);digitalWrite(b,LOW);digitalWrite(c,LOW);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,LOW);digitalWrite(g,LOW);digitalWrite(h,HIGH);break;case5:digitalWrite(a,LOW);digitalWrite(b,HIGH);3.趣味实验用四位数码管模拟汽车转速表digitalWrite(c,LOW);digitalWrite(d,LOW);digitalWrite(e,HIGH);digitalWrite(f,LOW);digitalWrite(g,LOW);digitalWrite(h,HIGH);break;

case6:digitalWrite(a,LOW);digitalWrite(b,HIGH);digitalWrite(c,LOW);digitalWrite(d,LOW);digitalWrite(e,LOW);digitalWrite(f,LOW);digitalWrite(g,LOW);digitalWrite(h,HIGH);break;

case7:digitalWrite(a,LOW);digitalWrite(b,LOW);digitalWrite(c,LOW);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,HIGH);digitalWrite(h