简易模拟交通灯 - - Powered by Discuz!

标题: 简易模拟交通灯 [打印本页]

作者: 池上柳 时间: 2018-11-16 01:03
标题: 简易模拟交通灯
本帖最后由池上柳于 2018-11-16 10:44 编辑

#include<reg51.h>
#define       uchar       unsigned char
#define       uint       unsigned int

sbit       DX_LED2=P2^3;
sbit       DX_LED1=P2^2;
sbit       NB_LED2=P2^1;
sbit       NB_LED1=P2^0;

sbit NB_Yellow=P1^6;
sbit DX_Yellow=P1^2;
sbit DX_Red=P1^3;
sbit NB_Red=P1^7;
bit    Flag_SN_Yellow;
bit    Flag_EW_Yellow;
char       Time_EW;
char       Time_SN;
sbit key0=P3^0;
sbit key1=P3^2;
sbit key2=P3^3;
sbit key3=P3^6;
sbit key4=P3^7;
sbit led1=P3^1;
sbit led2=P3^4;
sbit led3=P3^5;
sbit led4=P2^6;
sbit led5=P2^7;
uchar EW=60,SN=40,EWL=19,SNL=19;
uchar EW1=60,SN1=40,EWL1=19,SNL1=19;
uchar code table[10]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
uchar code S[6]={0X28,0X18,0X48,0X82,0X84,0X81};
void Delay(uchar       a)
{
            /*uchar       i;
            i=a;
            while(i--){;} */
      uchar i,j;
      for(i=a;i>0;i--)
         for(j=110;j>0;j--);
}

void Display(void)
{
            char h,l;
            h=Time_EW/10;
            l=Time_EW%10;

            P0=table[l];
            DX_LED2=1;
            Delay(2);
            DX_LED2=0;

         P0=table[h];
            DX_LED1=1;
            Delay(2);
            DX_LED1=0;

            h=Time_SN/10;
            l=Time_SN%10;
            P0=table[l];
         NB_LED2=1;
            Delay(2);
            NB_LED2=0;
         P0=table[h];
            NB_LED1=1;
            Delay(2);
            NB_LED1=0;
}
void main(void)
{
TMOD=0x01;
      TH0=(65536-50000)/256;
      TL0=(65536-50000)%256;
      EA=1;
      ET0=1;
TR0=1;

      IT0=1;
      EX0=1;
      PX0=1;

      IT1=1;
      EX1=1;
      PX1=1;

ET1=1;
      PT1=1;
      TR1=1;

      led1=0;led3=0;
      led2=0;led4=0;led5=0;
while(1)
{
      Time_EW=EW;
      Time_SN=SN;
      while(Time_SN>=5)
      {P1=S[0];       //南北通行，东西红灯
      Display();}
      P1=0x00;
      while(Time_SN>=0)
      {Flag_SN_Yellow=1;
      DX_Red=1;Display();}
Flag_SN_Yellow=0;
      Time_SN=SNL;
      while(Time_SN>=5)
      {P1=S[1];Display();} //南北左拐，东西红灯
while(Time_SN>=0)
      {Flag_SN_Yellow=1;
      DX_Red=1;Display();}
Flag_SN_Yellow=0;

      Time_EW=SN;
      Time_SN=EW;
      while(Time_EW>=5)
      { P1=S[3];//东西通行，南北红灯
      Display();}
P1=0x00;
      while(Time_EW>=0)
      {Flag_EW_Yellow=1;
      NB_Red=1;Display();}
Flag_EW_Yellow=0;
      Time_EW=EWL;
      while(Time_SN>=5)
      {P1=S[5];Display();} //东西左拐，南北红灯
      while(Time_EW>=0)
      {Flag_EW_Yellow=1;
      NB_Red=1;Display();}
Flag_EW_Yellow=0;

      EW=EW1;
      SN=SN1;
      EWL=EWL1;
      SNL=SNL1;
      }
}
void timer0(void)interrupt 1
{
      static uchar t;
      TH0=(65536-50000)/256;
      TL0=(65536-50000)%256;
      t++;

      if(t==10)
      {
      if(Flag_SN_Yellow==1)
      {NB_Yellow=~NB_Yellow;}
      if(Flag_EW_Yellow==1)
      {DX_Yellow=~DX_Yellow;}
      }
      if(t==20)
      {
      Time_EW--;
      Time_SN--;
      if(Flag_SN_Yellow==1)
         {NB_Yellow=~NB_Yellow;}
      if(Flag_EW_Yellow==1)
         {DX_Yellow=~DX_Yellow;}
      t=0;
      }

      if(key0==0)
  {
Delay(5);
      if(key0==0)//此处按键按下，数码管端口会被阻塞，当然，这也是我要的结果以便进行下一步的操作
      {
      TR0=0;
      P2=0x00;
      P1=0x88;
      led1=1;
      while(!key0);
      TR0=1;led1=0;
      }
  }
}
void ext0() interrupt 0//这些外部中断以及定时器1的中断都设置了高优先级以打断定时器0，并保持数码管处于闭塞的状态
{
      if(key1==0)
      {
      P1=0x82;
      led2=1;
      while(!key1);
      P1=0x88;led2=0;
      }
}
void ext1() interrupt 2
{
if(key2==0)
{
P1=0x28;
      led3=1;
      while(!key2);
      P1=0x88;led3=0;
}
}

void T1_timer() interrupt 3
{
      if(key3==0)
      {
      P1=0x81;
      led4=1;
      while(!key3);
      P1=0x88;led4=0;
      }
      if(key4==0)
      {
      P1=0x18;
      led5=1;
      while(!key4);
      P1=0x88;led5=0;
      }
}//原理图中的非门其实没有必要连接，可以将显示代码稍微改一下就可以不用非门了，先将位选端的电平拉低稍作软件延时后再拉高就可以了

LJ8SKWBTOKSIH3XKUOKQ9@A.png (117.02 KB, 下载次数: 28)

作者: admin 时间: 2018-11-16 03:41
补全原理图或者详细说明一下电路连接即可获得100+黑币

作者: 池上柳 时间: 2018-11-16 10:28

admin 发表于 2018-11-16 03:41
补全原理图或者详细说明一下电路连接即可获得100+黑币

好的

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