交通灯十字路口控制器程序(共35页)

1、精选优质文档-倾情为你奉上#include<reg52.h>#define uchar unsigned char#define uint unsigned intuchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40;/*digit display port*sbit led_w1=P11;sbit led_w2=P10;sbit led_w3=P13;sbit led_w4=P12;/*define led port *sbit R1=P24; /east and west red leds

2、bit Y1=P23; /east and west yellow ledsbit G1=P22; /east and west green ledsbit R2=P25; /south and north red ledsbit Y2=P26; /south and north yellow ledsbit G2=P27; /south and north green led/*define key*sbit k0=P30; /emergencysbit k1=P31; /east and west passsbit k2=P32; /south and north passsbit k3=

3、P33; /start and subtract 1sbit k4=P34; /pause and add 1sbit k5=P35; /set time/*define variable*bit flag,flag_t;uchar dx_time,nb_time;uchar cnt,pass_time,cnt1,y_time;uchar k0num,k1num,k2num,k3num,k4num,k5num;/*define key*void delay(uint i)uint x,y;for(x=i;x>0;x-)for(y=110;y>0;y-); void timer0_i

4、nit()TMOD=0x11;TH0=(65536-50000)/256;TL0=(65536-50000)%256;TH1=(65536-50000)/256;TL1=(65536-50000)%256;EA=1;ET0=1;ET1=1;void led_display(uchar dx,nb)uchar dx1,dx2,nb1,nb2;dx2=dx/10;dx1=dx%10;nb2=nb/10;nb1=nb%10;if(dx>99)led_w1=1;led_w2=1;elseled_w1=0;P0=tabledx1;delay(5);led_w1=1;if(dx<10&

5、&dx>0) led_w2=1;elseled_w2=0;P0=tabledx2;delay(5);led_w2=1;if(nb>99)led_w3=1;led_w4=1;elseled_w3=0;P0=tablenb1;delay(5);led_w3=3;if(nb<10&&nb>0) led_w4=1;elseled_w4=0;P0=tablenb2;delay(5);led_w4=4;/*light work*void circle_led()if(!flag)if(pass_time>5)led_display(pass_time-

6、5,pass_time);R1=1;Y1=1;G1=0;/east and west passR2=0;Y2=1;G2=1;/south and north stopif(pass_time<=5&&pass_time>0)if(cnt>=10) led_display(pass_time,pass_time);else led_display(100,pass_time);R1=1;G1=1; /east and west yellow led flashif(cnt>=10)Y1=0;else Y1=1;R2=0;Y2=1;G2=1;if(pass_

7、time=0)pass_time=nb_time;flag=1;elseif(pass_time>5)led_display(pass_time,pass_time-5);R1=0;Y1=1;G1=1;/east and west stopR2=1;Y2=1;G2=0;/south and north passif(pass_time<=5&&pass_time>0)if(cnt>=10) led_display(pass_time,pass_time);else led_display(pass_time,100);R1=0;Y1=1;G1=1;R2=

8、1;G2=1; /south and north yellow led flashif(cnt>=10)Y2=0;else Y2=1;if(pass_time=0)pass_time=dx_time;flag=0;void emergency() /east and west,south and north stopled_display(0,0);R1=0;Y1=1;G1=1;R2=0;Y2=1;G2=1;void dx_pass() /east and west pass,south and north stopled_display(100,100);if(y_time<=5

9、&&y_time>0)TR1=1;R1=0;Y1=1;G1=1;R2=1;G2=1; /south and north yellow led flashif(cnt1>=10)Y2=0;else Y2=1;if(y_time=0)TR1=0;R1=1;Y1=1;G1=0;R2=0;Y2=1;G2=1;void nb_pass() /south and north pass,east and west stopled_display(100,100);if(y_time<=5&&y_time>0)TR1=1;R1=1;G1=1;if(cnt

10、1>=10)Y1=0;/east and west yellow led flashelse Y1=1;R2=0;Y2=1;G2=1;if(y_time=0)TR1=0;R1=0;Y1=1;G1=1;R2=1;Y2=1;G2=0;/*keyboard scan*void keyscan() if(!k5num) if(k0=0) /*emergency*delay(10);if(k0=0)while(!k0);TR0=0;k0num=1; if(!k1num&&!k0num)if(k1=0)delay(10);if(k1=0)while(!k1);k1num=1;k2nu

11、m=0;y_time=5; /单方向通行时，黄灯闪烁时间TR0=0;TR1=1;if(!k2num&&!k0num)if(k2=0)delay(10);if(k2=0)while(!k2);k1num=0;k2num=1;y_time=5;/单方向通行时，黄灯闪烁时间TR0=0;TR1=1;if(k3=0)delay(10);if(k3=0)while(!k3);if(k1num|k2num)pass_time=dx_time; /由东西或南北通行返回时，重新开始执行。k0num=0;k1num=0;k2num=0;k4num=0;k5num=0;TR0=1;TR1=0;fla

12、g_t=0;if(!k4&&!k0num)/pausedelay(10);if(k4=0)while(!k4);TR0=0;k4num=1; if(k4num=1) /暂停键按下时，才可以调整两个方向通行时间if(k5=0)delay(10);if(k5=0)k5num+;while(!k5);switch(k5num)case 1:TR0=1;flag_t=1; /调整时间时，pass_time值不变。k5num=1;break;case 2:k5num=2;break;case 3:TR0=0;k5num=0;pass_time=dx_time; /重新赋值break;if

13、(k5num!=0)if(k3=0)delay(10);if(k3=0)while(!k3);switch(k5num)case 1:dx_time-;if(dx_time<10)dx_time=99;break;case 2:nb_time-;if(nb_time<10)nb_time=99;break;if(k4=0)delay(10);if(k4=0)while(!k4);switch(k5num)case 1:dx_time+;if(dx_time>=100)dx_time=10;break;case 2:nb_time+;if(nb_time>=100)nb_

14、time=10;break;void main()timer0_init();dx_time=45;nb_time=30;pass_time=dx_time;while(1)keyscan();if(k0num)emergency();elseswitch(k4num)case 0:if(!k1num&&!k2num)circle_led();elseif(k1num) dx_pass();if(k2num) nb_pass();break;case 1: switch(k5num)case 0:if(!k1num&&!k2num)circle_led();el

15、seif(k1num) dx_pass();if(k2num) nb_pass();break;case 1:R1=1;Y1=1;G1=1; /调整时间时，关闭所有灯R2=1;Y2=1;G2=1;if(cnt<=10)led_display(100,nb_time);elseled_display(dx_time,nb_time);break;case 2:R1=1;Y1=1;G1=1;/调整时间时，关闭所有灯R2=1;Y2=1;G2=1;if(cnt<=10)led_display(dx_time,100);elseled_display(dx_time,nb_time);break;break;void timer0()