单片机课程设计---篮球记分牌

单片机课程设计

# include <reg51.h>

/******定义单个位操作*****/
sbit resset = P1^4;		//定义复位按键
sbit redRLED = P0^0;	//定义加分红灯
sbit redYLED = P0^1;	//定义减分黄灯
sbit blueRLED = P0^2;
sbit blueYLED = P0^3;
sbit buzz = P2^4;	//蜂鸣器

#define uint unsigned int
#define uchar unsigned char

uint i,j;
uint redCount = 0, blueCount = 0;	//记录红队蓝队的分数
uchar keyFlag;		//标志位
uchar ledTable[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};	//共阴极段选值

/******函数声明*******/
void delay(uint i);	
void buttonChange();
void display();
void res();

/******主函数********/
void main()
{

	while (1){		//死循环
	
		res();		//复位函数
		if ((P1&0xff)!=0xff){	//判断是否有键按下
			delay(100);			//消抖
			if ((P1&0xff)!=0xff){
				keyFlag = (P1&0xff);
			}
			else{
				buzz = 0;
			}
		}
		buttonChange();	//
		display();		//显示函数
	}
}

/****复位函数****/
void res(){

	if (resset == 0){ 
		P3 = ledTable[0];
		P2 = 0x00;
		redCount = blueCount = 0;
		delay(5);
		}
}

/****延时函数*****/
void delay(uint i){

	for(; i>0; i--)

		for(j = 200; j > 0; j--);

}

/******按键函数*****/
void buttonChange(){
	switch(keyFlag){
		case 0xfe:		//红队加一
		{
			redRLED = 0;	//LED灯1 亮
			buzz = 1;	//蜂鸣器开
			delay(30);
			redCount += 1;
			keyFlag = 0xff;
				break;
		}
            
		case 0xfb:		//蓝队加一
		{
			blueRLED = 0;	//LED灯3 亮
			buzz = 1;	//蜂鸣器开
			delay(30);
			blueCount += 1;
			keyFlag = 0xff;
				break;
		}
            
		case 0xfd:		//红队减一
		{
			redYLED = 0;	//LED灯2 亮
			buzz = 1;	//蜂鸣器开
			delay(30);
			redCount -= 1;
			keyFlag = 0xff;
				break;
		}
            
		case 0xf7:		//蓝队减一
		{
			blueYLED = 0;	//LED灯4 亮
			buzz = 1;	//蜂鸣器开
			delay(30);
			blueCount -= 1;
			keyFlag = 0xff;
				break;
		}
		default:	//按键放开
			P0 = 0xff;	//LED灯灭
			break;
	}
}

/*******显示函数*******/
void display(void){
	
	P3 = ledTable[(redCount % 10)];		//红队个位
	P2 = 0x0d;
	delay(5);
	P2 = 0x0f;
	
	P3 = ledTable[(redCount / 10)];		//红队十位
	P2 = 0x0e;
	delay(5);
	P2 = 0x0f;
	
	P3 = ledTable[(blueCount % 10)];	//蓝队个位
	P2 = 0x07;
	delay(5);
	P2 = 0x0f;
	
	P3 = ledTable[(blueCount / 10)];	//蓝队十位
	P2 = 0x0b;	
	delay(5);
	P2 = 0x0f;
}