用8051单片机,1602LCD作为显示器的篮球记分牌

/****************************************************************************** ** 描述: ** 1602字符型LCD显示演示程序** 在第一行显示 A.T 000:000 B.T ** 在第二行显示TIME 12:00 ********************************************************************************** */#include <reg51.h>#include <intrins.h>typedef unsigned char BYTE;typedef unsigned int WORD;typedef bit BOOL ;sbit rs = P2^6; //sbit rw = P2^5;sbit ep = P2^7;sbit K1=P3^0;//用于给A对加分sbit K2=P3^1; // 给A对减分sbit K5=P3^6; // 给B对加分sbit K6=P3^7; //给B对减分sbit K4=P3^2; //比赛开始暂停按键sbit BEEP=P1^5;unsigned char Index;unsigned char key;char time,min,sec,num;unsigned char Apoint;unsigned char Bpoint;BYTE code dis1[] = {"A.T 000:000 B.T"};BYTE code dis2[] = {" TIME 12:00 "};delay(BYTE ms){ // 延时子程序BYTE i;while(ms--){for(i = 0; i< 250; i++){_nop_();_nop_();_nop_();_nop_();}}}BOOL lcd_bz(){ // 测试LCD忙碌状态BOOL result;rs = 0;rw = 1;ep = 1;_nop_();_nop_();_nop_();_nop_();result = (BOOL)(P0 & 0x80);ep = 0;return result;}lcd_wcmd(BYTE cmd){ // 写入指令数据到LCD while(lcd_bz());rs = 0;rw = 0;ep = 0;_nop_();_nop_();P0 = cmd;_nop_();_nop_();_nop_();_nop_();ep = 1;_nop_();_nop_();_nop_();_nop_();ep = 0;}lcd_pos(BYTE pos){ //设定显示位置lcd_wcmd(pos | 0x80);}lcd_wdat(BYTE dat){ //写入字符显示数据到LCD while(lcd_bz());rs = 1;rw = 0;ep = 0;P0 = dat;_nop_();_nop_();_nop_();_nop_();ep = 1;_nop_();_nop_();_nop_();_nop_();ep = 0;}lcd_init(){Apoint=0; //A.T分数初始化Bpoint=0; //B.T分数初始化time=0;TMOD=0x10; //定时器1初始化TL1=0xb0;TH1=0x3c;EA=1; //开总中断ET1=1; //开定时器1TR1=0; //定时器1不工作EX0=1; //开中断0ep=0;sec=0;min=12;//LCD初始化设定lcd_wcmd(0x38); //delay(1);lcd_wcmd(0x0c); //delay(1);lcd_wcmd(0x06); //delay(1);lcd_wcmd(0x01); //清除LCD的显示内容delay(1);}/***************************LCD分数更新*****************************/ void point_lcd(unsigned char add,unsigned char dat){lcd_wcmd (0x80+add);lcd_wdat (0x30+dat/100);lcd_wdat (0x30+(dat%100)/10);lcd_wdat (0x30+dat%10);dat=dat;}void point_lcd2(unsigned char add,unsigned char dat){lcd_wcmd (0x80+add);lcd_wdat (0x30+dat/100);lcd_wdat (0x30+(dat%100)/10);lcd_wdat (0x30+dat%10);dat=dat;}/********************************按键检测*******************************/ void keyscan(void){K1 = 1;K2 = 1;K5 = 1;K6 = 1;if(!K1) //按键按下{delay(10); //按键消抖if(!K1){while(!K1); //放手时才动作Index = 1;}}else if(!K2) //按键按下{delay(10); //按键消抖if(!K2){while(!K2); //放手时才动作Index = 2;}}if(!K5) //按键按下{delay(10); //按键消抖if(!K5){while(!K5); //放手时才动作Index = 3;}}else if(!K6) //按键按下{delay(10); //按键消抖if(!K6){while(!K6); //放手时才动作Index = 4;}}}/***********************比赛倒计时*********************************/ void counter_down(void){unsigned char i;if(time>=2) //每1s倒计时做减一操作{sec--;if((sec==0)&&(min==0)) //检测一节比赛是否结束{TR1=0; //定时器1暂停lcd_wcmd (0x80+0x4c);lcd_wdat(0x30);if((sec==0)&&(min==0)) //每节结束蜂鸣器发出3s的间断报警{for(i=3;i>0;i--){BEEP=0;delay(500);BEEP=1;delay(500);}}sec=0; //倒计时复位min=12;}if(sec==-1){sec=59;min--;}lcd_wcmd(0x80+0x48); //更新倒计时显示lcd_wdat(0x30+min/10);lcd_wdat(0x30+min%10);lcd_wcmd (0x80+0x4b);lcd_wdat(0x30+sec/10);lcd_wdat(0x30+sec%10);time=0;}}/**************************主程序****************************/ main(){BYTE i;lcd_init(); // 初始化LCD,及单片机delay(10);lcd_pos(1); // 设置显示位置为第一行的第2个字符i = 0;while(dis1[i] != '\0'){ // 显示字符"A.T 000:000 B.T"lcd_wdat(dis1[i]);i++;}lcd_pos(0x42); // 设置显示位置为第二行第3个字符i = 0;while(dis2[i] != '\0'){lcd_wdat(dis2[i]); // 显示字符" TIME 12:00 "i++;}while(1){keyscan();P0 = Index;switch(Index){case 1:{Apoint++;point_lcd(0x05,Apoint);delay(20);Index=0;delay(20);}break;case 2:{Apoint--;point_lcd(0x05,Apoint);delay(20);Index=0;delay(20);}break;case 3: //{Bpoint++;point_lcd(0x09,Bpoint);delay(20);Index=0;delay(20);}break;case 4: //{Bpoint--;point_lcd(0x09,Bpoint);delay(20);Index=0;delay(20);}break;P0 = Index;while(1);}}}/***K4按键中断0***/void exter0() interrupt 0 //比赛时间开始/暂停{TR1=~TR1; //定时器1工作/暂停if(TR1==1) //当倒计时工作时，K4按下定时器立即停止工作{PT1=0;}else //倒计时不工作时，K4按下倒计时立即工作{PT1=1;}if(K4==0) //松手检测{while(K4==0){counter_down();}delay(20);}}/***定时器1中断***/void timer1() interrupt 3 //定时器1中断20次为1s{time++;TL1=0xb0;TH1=0x3c;counter_down(); //倒计时}。