[51 single chip microcomputer traffic light simulation]

Traffic light design and simulation
Topic quantity ： 1 Full marks ： 100 branch The creator ： Wang Jianing By the time ：2022-04-24 11:54
One . Short answer （ common 1 topic ,100.0 branch ）
1
See the example of traffic lights in Chapter 6 of the book , Design and simulate , Count down the original program 20 Seconds to countdown 15 second . requirement Proteus Draw the circuit diagram to reflect the student number and name , And record the simulation effect .

Fill in the answer

#include "reg51.h"

sbit in1 = P2^1;
sbit in2 = P2^2;
sbit in3 = P2^3;
sbit in4 = P2^4;
sbit in5 = P2^5;
sbit in6 = P2^6;

typedef unsigned char u8;
u8 a[]={
    0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
void delay(int ms)
{
    
	int i,j;
	for(i=ms;i>0;i--) 	 
	  for(j=110;j>0;j--); 
}
void display(int d)
{
    	  int f = d;
	 while(f>=0)
	 {
    
	 if(f<10)
	 {
    
	  P3=a[f];
	  P1=a[0];
	  f=f-1;
	  delay(1000);
	  }
	  if(f>=10)
	  {
    
	  P3=a[f%10];
	  P1=a[f/10];
	  f=f-1;
	  delay(1000);
	 }
	 }

}

void one()
{
    
	in1=0;
	in2=1;
	in3=0;
	in4=1;
	in5=0;
	in6=0;
}
void two()
{
    
  	in1=0;
	in2=1;
	delay(800);
	in2=0;
	delay(800);
	in3=0;
	in4=1;
	in5=0;
	in6=0;
}
void three()
{
    
  	in1=0;
	in2=0;
	in3=1;
	in4=1;
	in5=0;
	in6=0;
}
void four()
{
    
  	in1=1;
	in2=0;
	in3=0;
	in4=0;
	in5=1;
	in6=0;
}
void five()
{
    
  	in1=1;
	in2=0;
	in3=0;
	in4=0;
	in5=1;
	delay(800);
	in5=0;
	delay(800);
	in6=0;
}
void six()
{
    
  	in1=1;
	in2=0;
	in3=0;
	in4=0;
	in6=1;
	delay(800);
	in6=0;
	delay(800);
	in5=0;
}
int main()
{
    	
	int i=0;
	in1=0;
	in2=0;
	in3=0;
	in4=0;
	in5=0;
	in6=0;
  while(1)
  {
    	
   one();
   display(20);
   two();
   display(3);
   three();
   display(2);
   four();
   display(20);
   five();
   display(3);
   six();
   display(2);
  }
}