LCD16024X4矩阵键盘篮球计分系统，proteus仿真，keil代码

#include<reg51.h> #include"lcd.h" #define GPIO_KEY P1 unsigned char KeyValue=0; //用来存放读取到的键值 unsigned char KeyState; //用来存放按键状态 unsigned char team[]=" A : B "; unsigned char team2[]=" B : A "; unsigned char dat1[]= " 000 : 000 "; unsigned char dat2[]="0123456789"; void Delay10ms(); //延时50us void KeyDown(); //检测按键函数 void Keynum(); unsigned int a,b,c,d; void main(void) { unsigned char i,j; a=0; b=0; c=0; d=0; LcdInit(); KeyState=0; for(i=0;i<16;i++) { LcdWriteData(team[i]); } while(1) { KeyDown(); if(KeyState) { if(KeyValue==1) { a=a+1; } if(KeyValue==2) { a=a+2; } if(KeyValue==3) { a=a+3; } if(KeyValue==4) { a=a-1; } if(KeyValue==5) { b=b+1; } if(KeyValue==6) { b=b+2; } if(KeyValue==7) { b=b+3; } if(KeyValue==8) { b=b-1; } if(KeyValue==9||KeyValue==10) { LcdWriteCom(0x80); if(d%2==0) for(i=0;i<16;i++) { LcdWriteData(team2[i]); } if(d%2==1) for(i=0;i<16;i++) { LcdWriteData(team[i]); } c=a; a=b; b=c; d++; } if(KeyValue==11||KeyValue==12) { a=0; b=0; } Keynum();//取各位数字 KeyState=0; KeyValue=0; LcdWriteCom(0x80+0x40); for(j=0;j<16;j++) { LcdWriteData(dat1[j]); } } } } void Keynum() { dat1[5]=dat2[a%10]; dat1[4]=dat2[(a/10)%10]; dat1[3]=dat2[(a/100)%10]; dat1[13]=dat2[b%10]; dat1[12]=dat2[(b/10)%10]; dat1[11]=dat2[(b/100)%10]; } void KeyDown(void) { char a; GPIO_KEY=0x0f; if(GPIO_KEY!=0x0f) { Delay10ms(); if(GPIO_KEY!=0x0f) { KeyState=1; GPIO_KEY=0X0F; switch(GPIO_KEY) { case(0X07): KeyValue=1;break; case(0X0b): KeyValue=2;break; case(0X0d): KeyValue=3;break; case(0X0e): KeyValue=4;break; } //测试行 GPIO_KEY=0XF0; Delay10ms(); switch(GPIO_KEY) { case(0X70): KeyValue=KeyValue;break; case(0Xb0): KeyValue=KeyValue+4;break; case(0Xd0): KeyValue=KeyValue+8;break; case(0Xe0): KeyValue=KeyValue+12;break; } while((a<50)&&(GPIO_KEY!=0xf0)) //检测按键松手检测 { Delay10ms(); a++; } a=0; } } } void Delay10ms() { unsigned char a,b,c; for(c=1;c>0;c--) for(b=38;b>0;b--) for(a=130;a>0;a--); }