51单片机交通灯设计

ID:699194 · 发表于 2021-6-17 21:38

51单片机交通灯设计
功能：有数码管倒计时计数，有独立按键可调交通灯

单片机源程序如下:

#include <reg52.h> //调用单片机头文件
#define uchar unsigned char //宏定义"uchar"代替"unsigned char"。
#define uint unsigned int //宏定义"uint"用来定义无符号整型数。
////数码管段选定义 0 1 2 3 4 5 6 7 8 9
uchar smg_du[]={0x6f,0x03,0x3d,0x4b,0x53,0x75,0x7e,0x28,0x7f,0x7b,
// A B C D E F 不显示
0x77,0x5e,0x4a,0x05,0x0a,0x2a,0xff}; //断码
uchar dis_smg[8] = {0};
uchar smg_i = 4; //显示数码管的个位数
//数码管位选定义
sbit smg_we1 = P2^1; //数码管位选定义
sbit smg_we2 = P2^0;
sbit smg_we3 = P3^6;
sbit smg_we4 = P3^7;
uint dx_zong = 0;
uint nb_zong = 0;
int dx_s = 0,nb_s = 0; //东西南北倒计时变量
sbit dx_red = P2^7; //东西红灯
sbit dx_yellow = P2^6; //东西黄灯
sbit dx_green = P2^5; //东西绿灯
sbit nb_red = P2^4; //南北红灯
sbit nb_yellow = P2^3; //南北黄灯
sbit nb_green = P2^2; //南北绿灯
sbit nb_green_ll = P1^6; //南北左转绿灯
sbit dx_green_ll = P1^7; //东西左转绿灯
sbit dx_h_red = P3^5; //东西人行横道红灯
sbit dx_h_green = P3^4; //东西人行横道红灯
sbit nb_h_red = P3^2; //南北人行横道红灯
sbit nb_h_green = P3^3; //南北人行横道红灯
uint nb_che_value;
uint dx_che_value;
uchar flag_jtd_mode; //交通灯的模式根据时间
bit flag_1s = 0;
bit flag_500ms;
bit flag_dx_nb = 0; //东西南北模式
uchar flag_5m_value;
uchar i;
uchar dx_time = 30,nb_time = 20; //东西、南北的时间
uchar nb_time_ll = 20,dx_time_ll = 20; //东西、南北左转的时间
uchar yellow_time = 5;
uchar flag_jdgz ; //交通管制
uchar nb_ll,dx_ll; //南北东西加的时间
/***********************数码位选函数*****************************/
void smg_we_switch(uchar i)
{
switch(i)
{
case 0: smg_we1 = 0; smg_we2 = 1; smg_we3 = 1; smg_we4 = 1; break;
case 1: smg_we1 = 1; smg_we2 = 1; smg_we3 = 0; smg_we4 = 1; break;
case 2: smg_we1 = 1; smg_we2 = 0; smg_we3 = 1; smg_we4 = 1; break;
case 3: smg_we1 = 1; smg_we2 = 1; smg_we3 = 1; smg_we4 = 0; break;
}
}
/********************************************************************
* 名称 : delay_1ms()
* 功能 : 延时1ms函数
* 输入 : q
* 输出 : 无
***********************************************************************/
void delay_1ms(uint q)
{
uint i,j;
for(i=0;i<q;i++)
for(j=0;j<110;j++);
}
/********************************************************************
* 名称 : display()
* 功能 : 数码管显示
* 输入 : 无
* 输出 : 无
***********************************************************************/
void display()
{
uchar i;
for(i=0;i<smg_i;i++)
{
smg_we_switch(i); //位选
P0 = dis_smg[i]; //段选
}
}
/*********************定时器0、定时器1初始化******************/
void time0_init()
{
EA = 1; //开总中断
TMOD = 0X11; //定时器0、定时器1工作方式1
ET0 = 1; //开定时器0中断
TR0 = 1; //允许定时器0定时
}
uchar flag_csf=1;
uchar f_value=0;
/*********************交通灯处理函数*********************************/
void jiaotongdeng_dis()
{
/***********************南北时间*********************************/
if(f_value < nb_ll + nb_time) //南北绿灯时间
{
if(flag_csf == 1) //意思是只初始化一次
{
flag_csf = 2;
dx_zong = dx_s = nb_ll + nb_time_ll + yellow_time; //是显示南北的总时间
nb_s = nb_ll + nb_time; //给南北倒计时显示初始化值
}
dx_red = 0;
dx_green = 1;//灭
dx_yellow = 1;//灭
nb_red = 1;
nb_green = 0;
nb_yellow = 1; //灭
nb_green_ll = 1;
dx_green_ll = 1;
flag_5m_value = 0;
}
else if(f_value < nb_ll + nb_time + yellow_time) //当小于5秒时黄灯要闪了
{
if(flag_csf == 2) //意思是只初始化一次
{
flag_csf = 3;
dx_s = nb_time_ll + 2*yellow_time; //是显示南北的总时间
nb_s = yellow_time; //给南北倒计时显示初始化值
}
dx_red = 0;
dx_green = 1; //灭
dx_yellow = 1; //灭
nb_red = 1;
nb_green = 1; //灭
if(flag_500ms == 0) //黄灯闪烁
{
nb_yellow = 0;
}
else
{
nb_yellow = 1;
}
dx_h_green = 1;
dx_h_red = 0;
nb_h_green = 0;
nb_h_red = 1;
}
else if(f_value < nb_ll + nb_time + nb_time_ll) //当左转的绿灯闪
{
if(flag_csf == 3) //意思是只初始化一次
{
flag_csf = 4;
dx_s = nb_time_ll + yellow_time; //是显示南北的总时间
nb_s = nb_time_ll; //给南北倒计时显示初始化值
}
dx_red = 0;
dx_green = 1; //灭
dx_yellow = 1; //灭
nb_green = 1; //灭
nb_yellow = 1; //灭
dx_h_green = 1;
dx_h_red = 0;
nb_h_green = 1;
}
else if(f_value < nb_ll + nb_time + nb_time_ll) //当小于5秒时黄灯要闪了
{
if(flag_csf == 4) //意思是只初始化一次
{
flag_csf = 1;
dx_s = nb_s = yellow_time; //给南北倒计时显示初始化值
}
dx_red = 0;
dx_green = 1; //灭
dx_yellow = 1; //灭
if(flag_500ms == 0) //黄灯闪烁
{
nb_yellow = 0;
}
else
{
nb_yellow = 1; //灭
}
dx_h_green = 1; //灭
nb_h_green = 1; //灭
nb_h_red = 0;
nb_green_ll = 1; //灭
dx_green_ll = 1; //灭
}
/***********************东西时间*********************************/
if(flag_dx_nb == 1)
{
if(f_value < dx_ll + dx_time) //东西绿灯时间
{
if(flag_csf == 1) //意思是只初始化一次
{
flag_csf = 2;
nb_zong = nb_s = dx_ll + dx_time_ll + 2*yellow_time; //是显示南北的总时间
dx_s = dx_ll + dx_time; //给南北倒计时显示初始化值
}
dx_red = 1; //灭
dx_green = 0;
dx_yellow = 1; //灭
nb_red = 0;
nb_green = 1; //灭
nb_yellow = 1; //灭
dx_h_green = 0;
dx_h_red = 1; //灭
nb_h_green = 1; //灭
nb_h_red = 0;
nb_green_ll = 1; //灭
dx_green_ll = 1; //灭
flag_5m_value = 0;
}
else if(f_value < dx_ll + dx_time+ yellow_time) //当小于5秒时黄灯要闪了
{
if(flag_csf == 2) //意思是只初始化一次
{
flag_csf = 3;
nb_s = dx_time_ll + 2*yellow_time; //是显示南北的总时间
dx_s = yellow_time; //给南北倒计时显示初始化值
// while(1);
}
dx_red = 1; //灭
dx_green = 1; //灭
nb_red = 0;
nb_green = 1; //灭
nb_yellow = 1; //灭
if(flag_500ms == 0)
{
dx_yellow = 0;
}
else
{
dx_yellow = 1; //灭
}
dx_h_green = 0;
dx_h_red = 1; //灭
nb_h_green = 1; //灭
nb_h_red = 0;
}
else if(f_value < dx_ll + dx_time+dx_time_ll+ yellow_time) //东西左转
{
if(flag_csf == 3) //意思是只初始化一次
{
flag_csf = 4;
nb_s = dx_time_ll + yellow_time; //是显示南北的总时间
dx_s = dx_time_ll; //给南北倒计时显示初始化值
}
dx_red = 1; //灭
dx_green = 1; //灭
dx_yellow = 1; //灭
nb_red = 0;
nb_green = 1; //灭
nb_yellow = 1; //灭
dx_h_green = 1; //灭
nb_h_green = 1; //灭
nb_h_red = 0;
nb_green_ll = 1;
dx_green_ll = 0;
}
else if(f_value < dx_ll + dx_time+dx_time_ll+ yellow_time*2) //当小于5秒时黄灯要闪了
{
if(flag_csf == 4) //意思是只初始化一次
{
flag_csf = 1;
nb_s = yellow_time; //是显示南北的总时间
dx_s = yellow_time; //给南北倒计时显示初始化值
}
dx_red = 1; //灭
dx_green = 1; //灭
nb_red = 0;
nb_green = 1; //灭
nb_yellow = 1; //灭
if(flag_500ms == 0)
{
dx_yellow = 0;
}
else
{
dx_yellow = 1; //灭
}
dx_h_green = 1; //灭
dx_h_red = 0;
nb_h_green = 1; //灭
nb_h_red = 0;
nb_green_ll = 1; //灭
dx_green_ll = 1; //灭
}
}
if(flag_1s == 1)
{
flag_1s = 0;
dx_che_value = 0;
dx_s --;
nb_s --;
f_value ++;
if(flag_dx_nb == 0) //南北时间
{
if(f_value >= dx_zong)
{
f_value = 0;
flag_dx_nb = 1; //东西绿灯模式
}
}
if(flag_dx_nb == 1) //东西时间
{
if(f_value >= nb_zong)
{
f_value = 0;
flag_dx_nb = 0; //南北绿灯模式
}
}
}
dis_smg[0] = smg_du[dx_s % 10] ; //显示
dis_smg[1] = smg_du[dx_s / 10] ;
dis_smg[2] = smg_du[nb_s % 10] ;
dis_smg[3] = smg_du[nb_s / 10] ;
}
/********************独立按键程序*****************/
uchar key_can; //按键值
void key() //独立按键程序
{
static uchar key_new;
key_can = 20; //按键值还原
P1 |= 0x0f;
if((P1 & 0x0f) != 0x0f) //按键按下
{
delay_1ms(1); //按键消抖动
if(((P1 & 0x0f) != 0x0f) && (key_new == 1))
{ //确认是按键按下
key_new = 0;
switch(P1 & 0x0f)
{
case 0x0e: key_can = 4; break; //得到按键值
case 0x0d: key_can = 3; break; //得到按键值
case 0x0b: key_can = 2; break; //得到按键值
case 0x07: key_can = 1; break; //得到按键值
}
}
}
else
key_new = 1;
}
uchar menu_1,flag_s;
/********************设置函数*****************/
void key_with()
{
if(key_can == 4) //交通管制按键
{
flag_jdgz ++;
if(flag_jdgz > 6)
{
flag_jdgz = 0;
}
if(flag_jdgz == 1) // 全部亮红灯
{
dx_green = 1; //灭
dx_yellow = 1; //灭
nb_green = 1; //灭
nb_yellow = 1; //灭
nb_green_ll = 1; //灭
dx_green_ll = 1; //灭
}
if(flag_jdgz == 2) // 南北黄灯东西黄灯
{
dx_red = 1; //灭
dx_green = 1; //灭
dx_yellow = 0; //亮
nb_red = 1; //灭
nb_green = 1; //灭
nb_yellow = 0; //亮
nb_green_ll = 1; //灭
dx_green_ll = 1; //灭
}
if(flag_jdgz == 3) // 东西红灯南北绿灯
{
dx_red = 0; //亮
dx_green = 1; //灭
dx_yellow = 1; //灭
nb_red = 1; //灭
nb_green = 0; //亮
nb_yellow = 1; //灭
dx_h_green = 1; //灭
dx_h_red = 1; //亮
nb_h_green = 0; //亮
nb_h_red = 1; //灭
nb_green_ll = 1; //灭
dx_green_ll = 1; //灭
}
if(flag_jdgz == 4) // 南北红灯东西绿灯
{
dx_red = 1; //灭
dx_green = 0; //亮
dx_yellow = 1; //灭
nb_red = 0; //亮
dx_h_green = 0; //亮
dx_h_red = 1; //灭
nb_h_green = 1; //灭
nb_h_red = 0; //亮
}
if(flag_jdgz == 5) // 南北左转绿灯
{
dx_red = 0; //亮
dx_green = 1; //灭
nb_green = 1; //灭
nb_yellow = 1; //灭
dx_h_green = 1; //灭
dx_h_red = 0; //亮
nb_h_green = 1; //灭
nb_h_red = 0; //亮
}
if(flag_jdgz == 6) // 南北红灯东西左转绿灯
{
dx_red = 0; //亮
dx_green = 1; //灭
dx_yellow = 1; //灭
nb_yellow = 1; //灭
dx_h_green = 1; //灭
dx_h_red = 0; //亮
nb_h_green = 1; //灭
nb_h_red = 0; //亮
nb_green_ll = 1; //灭
dx_green_ll = 0;
}
}
if(key_can == 1) //设置键
{
menu_1 ++;
if(menu_1 > 5)
{
menu_1 = 0;
}
}
if(menu_1 == 1) //设置东西的时间
{
if(key_can == 2)
{
dx_time ++ ; //加1
if(dx_time > 99)
dx_time = 99;
}
if(key_can == 3)
{
dx_time -- ; //减1
if(dx_time <= 5)
dx_time = 5;
}
dis_smg[0] = smg_du[dx_time % 10] ; //显示东西设置的时候
dis_smg[1] = smg_du[dx_time / 10] ;
}
if(menu_1 == 2) //设置南北的时间
{
if(key_can == 2)
{
nb_time ++ ; //加1
if(nb_time > 99)
nb_time = 99;
}
if(key_can == 3)
{
nb_time -- ; //减1
if(nb_time <= 5)
nb_time = 5;
}
dis_smg[2] = smg_du[nb_time % 10] ; //显示东西设置的时候
dis_smg[3] = smg_du[nb_time / 10] ;
}
if(menu_1 == 3) //设置黄灯的时间
{
if(key_can == 2)
{
yellow_time ++ ; //加1
if(yellow_time > 99)
yellow_time = 99;
}
if(key_can == 3)
{
yellow_time -- ; //减1
if(yellow_time <= 1)
yellow_time = 1;
}
dis_smg[0] = smg_du[yellow_time % 10] ; //显示黄灯时间
dis_smg[1] = smg_du[yellow_time / 10] ;
dis_smg[2] = smg_du[yellow_time % 10] ; //显示黄灯时间
dis_smg[3] = smg_du[yellow_time / 10] ;
}
if(menu_1 == 4) //设置东西左边的时间
{
if(key_can == 2)
{
dx_time_ll ++ ; //加1
if(dx_time_ll > 99)
dx_time_ll = 99;
}
if(key_can == 3)
{
dx_time_ll -- ; //减1
if(dx_time_ll <= 5)
……………………
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