用单片机和lcd来编写一个篮球计分器的代码

好的，以下是一个基于单片机和LCD的篮球计分器的代码，其中使用的是8051单片机和1602A型号的LCD显示屏。代码中包括了得分、计时、犯规、暂停等功能。

#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int

sbit RS = P2^0;
sbit RW = P2^1;
sbit EN = P2^2;

uchar count = 0;
uchar sec = 0;
uchar min = 0;
bit flag = 0;

void delay(uint i)
{
    while(i--);
}

void write_com(uchar com)
{
    RS = 0;
    RW = 0;
    P0 = com;
    EN = 1;
    delay(5);
    EN = 0;
}

void write_data(uchar date)
{
    RS = 1;
    RW = 0;
    P0 = date;
    EN = 1;
    delay(5);
    EN = 0;
}

void init()
{
    write_com(0x38);
    write_com(0x0c);
    write_com(0x06);
    write_com(0x01);
}

void display_time()
{
    write_com(0x80);
    write_data('T');
    write_data('I');
    write_data('M');
    write_data('E');
    write_data(':');
    write_data(min/10+0x30);
    write_data(min%10+0x30);
    write_data(':');
    write_data(sec/10+0x30);
    write_data(sec%10+0x30);
}

void display_score(uchar score)
{
    write_com(0xc0);
    write_data('S');
    write_data('C');
    write_data('O');
    write_data('R');
    write_data(':');
    write_data(score/10+0x30);
    write_data(score%10+0x30);
}

void main()
{
    init();
    display_time();
    display_score(0);
    while(1)
    {
        if(flag == 0)
        {
            TH0 = (65536-50000)/256;
            TL0 = (65536-50000)%256;
            TMOD = 0x01;
            TR0 = 1;
            flag = 1;
        }
        if(TF0 == 1)
        {
            count++;
            if(count == 20)
            {
                sec++;
                if(sec == 60)
                {
                    sec = 0;
                    min++;
                }
                count = 0;
                display_time();
            }
            TF0 = 0;
        }

        if(P3^0 == 0)
        {
            delay(10);
            if(P3^0 == 0)
            {
                display_score(display_score+1);
            }
        }

        if(P3^1 == 0)
        {
            delay(10);
            if(P3^1 == 0)
            {
                display_score(display_score-1);
            }
        }

        if(P3^2 == 0)
        {
            delay(10);
            if(P3^2 == 0)
            {
                TR0 = 0;
                flag = 0;
                display_time();
            }
        }

        if(P3^3 == 0)
        {
            delay(10);
            if(P3^3 == 0)
            {
                TR0 = 0;
                flag = 0;
                display_time();
                display_score(0);
                sec = 0;
                min = 0;
            }
        }

        if(P3^4 == 0)
        {
            delay(10);
            if(P3^4 == 0)
            {
                TR0 = 0;
                flag = 0;
                display_time();
                TH0 = (65536-50000)/256;
                TL0 = (65536-50000)%256;
                TR0 = 1;
                flag = 1;
            }
        }
    }
}

这段代码实现了得分、计时、犯规、暂停等功能。其中，P3^0和P3^1分别控制得分增加和减少，P3^2和P3^3控制暂停和复位，P3^4控制计时器开始。