控制交通灯的程序设计.doc

控制交通灯的程序设计#include unsignedcharcodedis_721=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1, 0x86,0x8e,0xbf,0x89,0x8c,0x00,0xff;/共阳数码管段码 unsignedchardatadisbuf6=0x00,0x00,0x00,0x00,0x00,0x00;/显示缓冲区:时分秒使用unsignedchardatacount_timedx=2,10,5,10,25;/东西方向倒计时时间unsignedchardatacount_timenb=2,25,10,5,10;/南北方向倒计时时间unsignedchardatahour=14,minite=06,second=0,halfsec=0;/定义时钟位unsignedcharxdata*ledaddr=0x2000;/锁存器选通地址 unsignedchardatams=0,lightcode=0,light_step,led_step,light_num; unsignedintdatafault_dx=0,fault_nb=0,fault_total=0,countdx=0,countnb=0; sbitp10=p10;/第0位数码管位控制端sbitp11=p11;/第1位数码管位控制端sbitp12=p12;/第2位数码管位控制端sbitp13=p13;/第3位数码管位控制端sbitp14=p14;/第4位数码管位控制端sbitp15=p15;/第5位数码管位控制端sbitp16=p16;/发光二极管选通sbitp17=p17;/按键选通 sbitp33=p33;/k1键用于切换四种功能 /*/ /*1毫秒延时函数*/voiddelay1ms(intt) unsignedinti,j;for(i=0;it;i+)for(j=0;j120;j+); /*/ /*键盘扫描函数*/unsignedchargetkey(void) unsignedcharyiwei;unsignedchartest=0x00,tim; *ledaddr=test; if(p17=0&tim=0)/判断是否有按键按下 p17=1; tim=1; test=0xfe;delay1ms(5); for(yiwei=0;yiwei8;yiwei+)/处理按键 *ledaddr=test;if(p17=0)break;elsetest=(test=4)&(light_step=1)&(light_step4)light_num=0; if(key3=5)/kl2键用于修改东西方向倒计时，加1 count_timedxlight_num+;if(count_timedxlight_num=99) count_timedxlight_num=99; if(key3=1)/kl6键用于修改东西方向倒计时，减1 count_