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#include<reg51.h>
#include<LCD1602.h>
#define uchar unsigned char
#define uint unsigned int
sbit key_start =P1^0; //開始/結束計價
sbit key_wait =P1^1; //等待
sbit key_set =P1^2; //設置
sbit key_jia =P1^3; //加值
sbit key_jian =P1^4; //減值
sbit key_dn =P1^5; //控制白天晚上
sbit key_fuwei =P1^6; //復位
sbit mod=P1^7; //電機控制
/************************——變量定義***********************/
uint start_price=77; //起步價
uint white_price=66; //白天的單價超過3公里每公里6元
uint black_price=88; //夜晚的單價超過3公里每公里8元
uint Wait_price=100; //等待價錢
bit dnc=0; //白天晚上的轉換標志
bit qiting; //起停標志位
uint price1,price2; //總價錢、等待價錢
uint mil; //里程數
uint mil2;
uchar shi,fen,miao;
uchar moshi,moshi2,ms,set_f; //模式mos=0初始界面，=1改價頁面，=2等待頁面
//set_f設置標志=1設置初始價格，=2設置等待價格，=3設置晚上單價，=4設置白天單價
void delay(uchar ms) //延時函數
{
uchar j;
while(ms--)
{
for(j=0;j<130;j++);
}
}
void key() //按鍵函數
{
if(key_dn==0)
{
delay(5); //延時去抖
if(key_dn==0)
{
while(!key_dn);
dnc=~dnc;
}
}
if(key_start==0)
{
delay(5);
if(key_start==0)
{
while(!key_start); //檢測按鍵是否松開
qiting=~qiting; //起停轉換
if(qiting==0)
{
moshi=0;
}
mod=~qiting; //電機打開/關閉
TR0=qiting; //定時器0打開/關閉
set_f=0;
}
}
if(key_fuwei==0) //復位
{
delay(5);
if(key_fuwei==0)
{
while(!key_fuwei);
miao=0;fen=0;shi=0;
price1=0;price2=0; mil=0;moshi=0;
}
}
if(key_wait==0)
{
delay(5);
if(key_wait==0)
{
while(!key_wait);
miao=0;fen=0;shi=0;
moshi=2;
}
}
if(qiting==0) //結束計價后才能設置
{
if(key_set==0)
{
delay(5);
if(key_set==0)
{
while(!key_set);
set_f++;
moshi=1;
if(set_f==5){moshi=0;set_f=0;}
}
}
if(set_f!=0)
{
if(key_jia==0)
{
delay(5);
if(key_jia==0)
{
while(!key_jia);
if(set_f==1){if(start_price<999)start_price++;}
if(set_f==2){if(Wait_price<999)Wait_price++;}
if(set_f==3){if(black_price<999)black_price++;}
if(set_f==4){if(white_price<999)white_price++;}
}
}
if(key_jian==0)
{
delay(5);
if(key_jian==0)
{
while(!key_jian);
if(set_f==1){if(start_price>0)start_price--;}
if(set_f==2){if(Wait_price>0)Wait_price--;}
if(set_f==3){if(black_price>0)black_price--;}
if(set_f==4){if(white_price>0)white_price--;}
}
}
}
}
}
void xianshi()
{
if(moshi!=moshi2)
{
lcd_wcmd(0x01); //清顯示屏
moshi2=moshi;
}
if(moshi==0)
{
lcd_wcmd(0x80);
lcd_data('N');
lcd_data('J');
lcd_data(':');
lcd_data(ASCII[black_price%1000/100]);
lcd_data(ASCII[black_price%100/10]);
lcd_data('.');
lcd_data(ASCII[black_price%10]);
// lcd_wcmd(0x80);
// lcd_data('D');
// lcd_data('J');
// lcd_data(':');
// lcd_data(ASCII[white_price%1000/100]);
// lcd_data(ASCII[white_price%100/10]);
// lcd_data('.');
// lcd_data(ASCII[white_price%10]);
// lcd_data('Y');
lcd_data('G');
lcd_data(':');
lcd_data(ASCII[mil%1000/100]);
lcd_data(ASCII[mil%100/10]);
lcd_data('.');
lcd_data(ASCII[mil%10]);
lcd_data('K');
lcd_data('M');
lcd_wcmd(0x80+0x40);
lcd_data('D');
lcd_data('J');
lcd_data(':');
lcd_data(ASCII[white_price%1000/100]);
lcd_data(ASCII[white_price%100/10]);
lcd_data('.');
lcd_data(ASCII[white_price%10]);
lcd_data('Y');
lcd_data('Y');
lcd_data('Q');
lcd_data(':');
lcd_data(ASCII[price1%1000/100]);
lcd_data(ASCII[price1%100/10]);
lcd_data('.');
lcd_data(ASCII[price1%10]);
lcd_data('O');
lcd_data('Y');
}
if(moshi==1) //改價頁面
{
lcd_wcmd(0x80);
lcd_data('S');
lcd_data('J');
lcd_data(ASCII[start_price%1000/100]);
lcd_data(ASCII[start_price%100/10]);
lcd_data('.');
lcd_data(ASCII[start_price%10]);
lcd_data('Y');
lcd_data(' ');
lcd_data('P');
lcd_data('T');
lcd_data(ASCII[Wait_price%1000/100]);
lcd_data(ASCII[Wait_price%100/10]);
lcd_data('.');
lcd_data(ASCII[Wait_price%10]);
lcd_data('Y');
lcd_wcmd(0x80+0x40);
lcd_data('N');
lcd_data('J');
lcd_data(ASCII[black_price%1000/100]);
lcd_data(ASCII[black_price%100/10]);
lcd_data('.');
lcd_data(ASCII[black_price%10]);
lcd_data('Y');
lcd_data(' ');
lcd_data('D');
lcd_data('J');
lcd_data(ASCII[white_price%1000/100]);
lcd_data(ASCII[white_price%100/10]);
lcd_data('.');
lcd_data(ASCII[white_price%10]);
lcd_data('Y');
}
if(moshi==2) //等待頁面
{
lcd_wcmd(0x80);
lcd_data('W');
lcd_data('a');
lcd_data('i');
lcd_data('t');
lcd_data(':');
lcd_data(' ');
lcd_data(' ');
lcd_data(ASCII[shi%100/10]);
lcd_data(ASCII[shi%10]);
lcd_data(':');
lcd_data(ASCII[fen%100/10]);
lcd_data(ASCII[fen%10]);
lcd_data(':');
lcd_data(ASCII[miao%100/10]);
lcd_data(ASCII[miao%10]);
lcd_wcmd(0x80+0x40);
lcd_data('D');
lcd_data('D');
lcd_data('M');
lcd_data(':');
// lcd_data(ASCII[(white_price/2)%1000/100]);
// lcd_data(ASCII[(white_price/2)%100/10]);
lcd_data(ASCII[price2%1000/100]);
lcd_data(ASCII[price2%100/10]);
lcd_data('.');
lcd_data(ASCII[price2%10]);
//lcd_data(ASCII[(white_price/2)%10]);
lcd_data(' ');
lcd_data('Y');
}
}
void jiaqianjisuan() //計算價錢
{
if(dnc==0) //白天價錢
{
if(mil>30)
{
price1=(white_price*((mil-30)/10));
price1=price1+start_price+price2;
}
else
price1=start_price+price2;
}
else //晚上價錢
{
if(mil>30)
{
price1=(black_price*((mil-30)/10));
price1=price1+start_price+price2;
}
else
price1=start_price+price2;
}
}
void T0_init() //定時器0初始化
{
EA=1; //開總中斷
ET0=1; //定時器T0中斷允許
TMOD=0x01; //使用定時器T0的模式1
TH0=(65536-50000)/256; //定時器T0的高8位賦初值
TL0=(65536-50000)%256; //定時器T0的低8位賦初值
TR0=0; //關閉定時器0
EX0=1; //外部中斷0允許位
IT0=1; //下降沿觸發外部中斷
}
void main()
{
lcd_init(); //LCD1602初始化
T0_init(); //定時器0初始化
while(1) //死循環
{
jiaqianjisuan();
key(); //按鍵檢測處理
xianshi();
}
}
void timer0() interrupt 1 //定時器0中斷函數
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256; //定50ms
ms++;
if(ms>=20)
{
ms=0;
miao++;
if(moshi==0)
……………………
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