单片机交通灯设计含proteus仿真和源码 -

#include <REGX52.H>
#define uchar unsigned char
#define uint unsigned int
sbit Time_Show_LED2=P2^1;// 繁忙状态数码管高位控制
sbit Time_Show_LED1=P2^0;// 低位控制
sbit EW_LED2=P2^3; //东西方向数码管高位控制
sbit EW_LED1=P2^2; // 低位控制
sbit SN_LED2=P2^5; //南北方向数码管高位控制
sbit SN_LED1=P2^4; // 低位控制
sbit SN_Yellow=P1^6;//南北黄灯
sbit EW_Yellow=P1^2;//东西黄灯
sbit EW_Red=P1^3;//东西红灯
sbit SN_Red=P1^7;//南北红灯
sbit EW_ManGreen=P3^0;//东西人行道绿灯
sbit SN_ManGreen=P3^1;//南北人行道绿灯
sbit SN_GREEN_A1=P1^5;//南北直行和右拐绿灯
sbit EW_RED_B=P1^3;//东西红灯
sbit SN_GREEN_A2=P1^4;//南北左拐绿灯
sbit EW_GREEN_B1=P1^1;//东西直行右拐绿灯
sbit SN_RED_A=P1^7;//南北红灯
sbit EW_GREEN_B2=P1^0;//东西左拐绿灯
sbit Busy_LED=P2^7;//交通繁忙指示灯
sbit Busy_Btton=P3^6;//交通繁忙按键
sbit Add_Button=P3^3;//时间加
sbit Reduces_Button=P3^4;//时间减
bit Flag_SN_Yellow; //南北黄灯标志位
bit Flag_EW_Yellow;//东西黄灯标志位
char Time_EW;//东西方向倒计时单元
char Time_SN;//南北方向倒计时单元
uchar operation_type=1; //设置T0中断服务程序初始值为1
uchar EW=60,SN=40,EWL=19,SNL=19; //程序初始化赋值，正常模式
uchar EW1=60,SN1=40,EWL1=19,SNL1=19;//用于存放修改值的变量
uchar code table[10]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};//共阴数码管0~9段码
void Delay(unsigned char cnt)
{
unsigned int i,t;
for(i=0;i<cnt;i++)
{
t=115;
while(--t);
}
}
void Display(void)
{
char h,l;
h=Time_EW/10;
l=Time_EW%10;
P0=table[l];
EW_LED1=1;
Delay(1);
EW_LED1=0;
P0=table[h];
EW_LED2=1;
Delay(1);
EW_LED2=0;
h=Time_SN/10;
l=Time_SN%10;
P0=table[l];
SN_LED1=1;
Delay(1);
SN_LED1=0;
P0=table[h];
SN_LED2=1;
Delay(1);
SN_LED2=0;
h= EW1/10;
l= EW1%10;
P0=table[l];
Time_Show_LED1=1;
Delay(2);
Time_Show_LED1=0;
P0=table[h];
Time_Show_LED2=1;
Delay(2);
Time_Show_LED2=0;
}
/*********外部中断***********/
void EXINT0(void)interrupt 0 using 1
{
EX0=0; //关中断
if(Add_Button==0) //时间加
{
EW1+=5;
SN1+=5;
if(EW1>=100)
{
EW1=99;
SN1=79;
}
}
if(Reduces_Button==0) //时间减
{
EW1-=5;
SN1-=5;
if(EW1<=40)
{
EW1=40;
SN1=20;
}
}
if(Busy_Btton==0) //测试按键是否按下，按下为繁忙状态
{
EW1=45;
SN1=30;
EWL1=14;
SNL1=14;
Busy_LED=0;//开繁忙信号灯
}
EX0=1;//开中断
}
/*********定时中断***********/
void T0_INT() interrupt 1
{
static uchar count;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
if(count==10)
{
if(Flag_SN_Yellow==0) //测试南北黄灯标志位
{
SN_Yellow=~SN_Yellow;
}
if(Flag_EW_Yellow==0) //测试东西黄灯标志位
{
EW_Yellow=~EW_Yellow;
}
}
if(count==20)
{
Time_EW--;
Time_SN--;
if(Flag_SN_Yellow==0)//测试南北黄灯标志位
{
SN_Yellow=~SN_Yellow;
}
if(Flag_EW_Yellow==0)//测试东西黄灯标志位
{
EW_Yellow=~EW_Yellow;
}
count=0;
}
}
void zhuangtai()
{
switch(operation_type)
{
/**s1状态****/
case 1: EW_ManGreen=1; //EW人行道禁止
SN_ManGreen=0;//SN人行道通行
Flag_EW_Yellow=1; //EW关黄灯显示信号
Time_EW=EW;
Time_SN=SN;
while(Time_SN>=5)
{
SN_GREEN_A1=0; //SN通行，EW红灯
EW_RED_B=0;
SN_Yellow=1;
SN_RED_A=1;
Display();
}
operation_type=2;
break;
/***s2状态***/
case 2: P1=0xff; //关掉所有灯
while(Time_SN>=0)
{
Flag_SN_Yellow=0; //SN开黄灯信号位
EW_Red=0; //SN黄灯亮，等待左拐信号，EW红灯
Display();
}
operation_type=3;
break;
/***s3状态***/
case 3: Flag_SN_Yellow=1; //SN关黄灯显示信号
Time_SN=SNL;
while(Time_SN>=5)
{
SN_GREEN_A2=0;//SN左拐绿灯亮，EW红灯
EW_RED_B=0;
SN_Yellow=1;
Display();
}
operation_type=4;
break;
/***s4状态***/
case 4: P1=0xff;
while(Time_SN>=0)
{
Flag_SN_Yellow=0; //SN开黄灯信号位
EW_Red=0; //SN黄灯亮,等待停止信号，EW红灯
Display();
}
EW=EW1;
SN=SN1;
EWL=EWL1;
SNL=SNL1;
operation_type=5;
break;
/***s5状态***/
case 5: EW_ManGreen=~EW_ManGreen;//EW人行道通行
SN_ManGreen=~SN_ManGreen;//SN人行道禁止
Flag_SN_Yellow=1; //SN关黄灯显示信号
Time_EW=SN;
Time_SN=EW;
while(Time_EW>=5)
{
EW_GREEN_B1=0; //EW通行，SN红灯
SN_RED_A=0;
EW_Yellow=1;
EW_RED_B=1;
Display();
}
operation_type=6;
break;
/***s6状态***/
case 6: P1=0xff;
while(Time_EW>=0)
{
Flag_EW_Yellow=0;//EW开黄灯信号位
SN_Red=0;//EW黄灯亮，等待左拐信号，SN红灯
Display();
}
operation_type=7;
break;
/***s7状态***/
case 7: Flag_EW_Yellow=1; //EW关黄灯显示信号
Time_EW=EWL;
while(Time_EW>=5)
{
EW_GREEN_B2=0 ;//EW左拐绿灯亮，SN红灯
EW_RED_B=1;
SN_RED_A=0;
EW_Yellow=1;
Display();
}
operation_type=8;
break;
/***s8状态***/
case 8: P1=0xff;
while(Time_EW>=0)
{
Flag_EW_Yellow=0; //EN开黄灯信号位
SN_Red=0;//EW黄灯亮，等待停止信号，SN红灯
Display();
}
EW=EW1;
SN=SN1;
EWL=EWL1;
SNL=SNL1;
operation_type=1;
break;
}
}
void main()
{
IT0=1;
TMOD=0x01; //定时器T0工作于方式1
TH0=(65536-50000)/256; //定时赋初值
TL0=(65536-50000)%256;
EA=1; //开总中断
ET0=1; //开定时器中断
EX0=1; //开外部INTO中断
TR0=1; //启动定时器
while(1)
{
zhuangtai();
}
}

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