Car_cyan_Timer.doc

基于单片机的出租车自动计费器仿真电路：proteus 7.4仿真效果良好程序清单：#include#define uint unsigned int #define uchar unsigned char#define WAIT 1 /* 等待状态 */#define RUN 2 /* 通行状态 */#define STOP 0 /* 禁止状态 */sbit Car_S0=P10;sbit Car_S1=P11;sbit LED_R=P20;sbit LED_Y=P21;sbit LED_G=P22;void Car_Process(void);uint disnum; /disnum通道数码值uint count; uchar Car_State; /汽车运行状态uchar code table0= /共阳数码管代码0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e;uchar code table1= /共阴数码管代码0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;/*延时子函数*/void delay(uchar x)uchar a,b; for(a=x;a0;a-) for(b=25;b0;b-);/*定时器初始化*/void Time0_Init() EA=1; /中断使能ET0=1;ET1=1;TMOD=0X51; /T1计数 T0定时TH0=(65536-55536)/256; /12M晶振TL0=(65536-55536)%256;TR0=0; TR1=0; void time0() interrupt 1TH0=(65536-55536)/256; /12M晶振TL0=(65536-55536)%256;if(count60)count+; /0.1分钟步进值else disnum=disnum+15; count=0; /1.5/min 0.15/0.1minvoid T1_counter(void)EA=0;disnum=disnum+8*(TL1+(TH19999)disnum=9999;P0=table1disnum/1000;P3=0xfe;delay(2);P3=0Xff;P0=table1disnum%1000/100|0x80;P3=0xfd;delay(2);P3=0Xff;P0=table1disnum%100/10;P3=0xfb;delay(2);P3=0Xff;P0=table1disnum%10;P3=0xf7;delay(2);P3=0Xff;/*交通灯运作进程*/void Car_Process(void)switch(Car_State) case RUN: T1_counter(); LED_R=0;LED_Y=0;LED_G=1; break; case WAIT: LED_R=0;LED_Y=1;LED_G=0; break; case STOP: LED_R=1;LED_Y=0;LED_G=0; break; /*初始数据初始化*/void Data_Init(void) disnum=0; Car_State=STOP; count=0; LED_R=1;LED_Y=0;LED_G=0;main()Time0_Init();Data_Init();delay(20);while(Car_S0=1) display();Car_Process();disnum=800;Car_State=WAIT;TR0=1; /定时器开启while(Car_S1=1)