基于AT89C51的籃球比賽計(jì)分器設(shè)計(jì)

基于AT89C51的籃球比賽計(jì)分器課程設(shè)計(jì)學(xué)院：學(xué)生姓名：班級(jí)：學(xué)號(hào)：指導(dǎo)教師：附錄/* PO控制連接段選，P2連接位選，P1連接矩陣鍵盤 矩陣鍵盤按下按鍵，數(shù)碼管顯示相應(yīng)的數(shù)據(jù) 比賽開始后，初始狀態(tài)為000--000 比賽結(jié)束后，可復(fù)位為000--000*/#include<reg51.h>sbitkey=P1; //P1連接矩陣鍵盤voidLED(); //數(shù)碼管顯示voidkaishi(); //開始或復(fù)位voidexchange();//交換得分voidguan(); //關(guān)閉voidjixu();//繼續(xù)voidajian(intt); //a-tvoidbjian(intt); // b-tvoiddelay(unsignedinti);//延時(shí)程序unsignedcharkeyscan(void);//矩陣鍵盤掃描unsignedinta,b,m;unsignedcharj[16]={0x7e,0x7d,0x7b,0x77,0xbe,0xbd,0xbb,0xb7,0xde,0xdd,0xdb,0xd7,0xee,0xed,0xeb,0xe7};//鍵值unsignedcharDisp_Tab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40}; //段選unsignedchardispbit[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdF,0xbF,0x7F}; //位選main(){ a=0;b=0;m=0; while(1) { unsignedkey; LED();//顯示數(shù)碼管 key=keyscan();//調(diào)用鍵盤掃描， switch(key) { case0x7e:a=a+1;LED();break; //a隊(duì)加1 case0x7d:a=a+2;LED();break; /a隊(duì)加2 case0x7b:a=a+3;LED();break; //a隊(duì)加3 case0x77:a=0;b=0;kaishi();break; // 復(fù)位 case0xbe:ajian(1);LED();break; //a隊(duì)減1 case0xbd:ajian(2);LED();break; //a隊(duì)減2 case0xbb:ajian(3);LED();break; //a隊(duì)減3 case0xb7:jixu();break;//暫停，繼續(xù) case0xde:b=b+1;LED();break; //b隊(duì)加1 case0xdd:b=b+2;LED();break; //b隊(duì)加2 case0xdb:b=b+3;LED();break; //b隊(duì)加3 case0xd7:exchange();LED();break; //交換比分 case0xee:bjian(1);LED();break; //b隊(duì)減1 case0xed:bjian(2);LED();break; //b隊(duì)減2 case0xeb:bjian(3);LED();break; //b隊(duì)減3 case0xe7:guan();break;//關(guān)閉 }}}voidkaishi(){ m=1;LED();}voidajian(intt){if(a>=t){a=a-t;}}voidbjian(intt){if(b>=t){b=b-t;}}voidjixu(){ m=!m;LED();}voidguan(){m=0; LED();}voidexchange(){ unsignedinti; i=a; a=b; b=i;}voidLED(){unsignedinti,d,LedNumVal=1; //變量定義unsignedintLedOut[10]; //變量定義unsignedintDelayCNT=0;for(d=0;d<30;d++){ if(++DelayCNT>=20) //控制數(shù)字變化速度 { DelayCNT=0; //20個(gè)掃描周期清零一次 } if(m==1) {LedOut[2]=Disp_Tab[a/100];LedOut[1]=Disp_Tab[a%100/10];LedOut[0]=Disp_Tab[a%10];LedOut[3]=0x40; LedOut[4]=0x40; LedOut[7]=Disp_Tab[b/100];LedOut[6]=Disp_Tab[b%100/10]; LedOut[5]=Disp_Tab[b%10]; }if(m==0) { LedOut[0]=0x40;LedOut[1]=0x40;LedOut[2]=0x40;LedOut[3]=0x40; LedOut[4]=0x40; LedOut[5]=0x40;LedOut[6]=0x40; LedOut[7]=0x40; } for(i=0;i<9;i++) { P0=LedOut[i]; //P0控制段選 switch(i) //使用switch語句控制位選 { case0:P2=0x7F;break; case1:P2=0xbF;break; case2:P2=0xdF;break; case3:P2=0xeF;break; case4:P2=0xf7;break; case5:P2=0xfb;break; case6:P2=0xfd;break; case7:P2=0xfe;break; } delay(150); //掃描間隔時(shí)間 太長會(huì)數(shù)碼管會(huì)有閃爍感 } }}voiddelay(unsignedinti){charj;for(i;i>0;i--)for(j=200;j>0;j--);}unsignedcharkeyscan(void)//鍵盤掃描函數(shù)，使用行列反轉(zhuǎn)掃描法{unsignedcharcord_h,cord_l;//行列值P1=0x0f;//行線輸出全為0cord_h=P1&0x0f;//讀入列線值if(cord_h!=0x0f)//先檢測(cè)有無按鍵按下{delay(20);