基于51单片机蓝球比赛计时器程序设计.doc

基于51单片机蓝球比赛计时器程序设计#include typedef unsigned char UINT8;typedef unsigned int UINT16; #define S1 0x0e#define S2 0x0d#define S3 0x0b#define S4 0x07UINT8 miao_01s=0,Daojishi_24s=24,i=1, j=0,Daojishi_01s=0;UINT8 L_C=0,R_C=0,Add=0,Jian=3;UINT16 miao=720;sbit Sheng=P35; bit Flag_over=0;bit Flag_24s=0; UINT8 code SEGMENT13=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xf6,0xff;UINT8 code SELECT8=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f;void Delay(UINT16 t) UINT16 i,j;for(i=0;it;i+)for(j=0;j113;j+); UINT8 Scankey(void)UINT8 key;if(P3&0x0f)=0x0f)return(0xff);Delay(10);if(P3&0x0f)=0x0f)return(0xff);key=P3&0x0f;while(P3&0x0f)!=0x0f);return(key);void Baojing() UINT8 a;for(a=0;a0) L_C-=Jian; Jian=3;L_C%=1000;break;void S_4()switch(i)case 1: Daojishi_24s=23;Daojishi_01s=9; break;case 2:R_C+=Add; Add=0;R_C%=1000; break;case 3:if(R_C/Jian)0) R_C-=Jian; Jian=3;R_C%=1000; break;void main()UINT8 key; System_init();while(1)key=Scankey();switch(key)case S1:i+;if(i=4)i=1;break;case S2: S_2();break;case S3: S_3();break;case S4: S_4();break;if(Flag_over)Baojing();Flag_over=0;void Display()static UINT8 num=0; UINT8 B,D0,D1,D2,D3,D4,D5,D6,D7;P2=0xff;if(i=1) B=0x7f;D0=Daojishi_01s%10;D1=Daojishi_24s%10;D2=Daojishi_24s/10;D3=12;D4=miao_01s%10;D5=miao%10;D6=miao%100/10;D7=miao/100;if(i=2)D0=Add;D1=R_C%10;D2=R_C%100/10;D3=R_C/100;D4=10;D5=L_C%10;D6=L_C%100/10;D7=L_C/100;B=0x7f;if(i=3) D0=Jian;D1=R_C%10;D2=R_C%100/10;D3=R_C/100;D4=10;D5=L_C%10;D6=L_C%100/10;D7=L_C/100;B=0x7f;switch(num)case 0:P0=SEGMENTD0;break;case 1:P0=SEGMENTD1&B;break;case 2:P0=SEGMENTD2;break;case 3:P0=SEGMENTD3;break;case 4:P0=SEGMENTD4;break;case 5:P0=SEGMENTD5&B;break;case 6:P0=SEGMENTD6;break;case 7:P0=SEGMENTD7;break;P2=SELECTnum;num+;num%=8;void time0(void) interrupt 1static UINT8 Count=0;TH0=0x3c;TL0=0xb0; /50msif(miao=720)&(miao_01s=0)/时间初始化miao=719;miao_01s=9; Daojishi_24s=23;Daojishi_01s=9; Count+;if(Count=2)Count=0;miao_01s-;Daojishi_01s-; if(miao_01s=255)miao_01s=9;if(miao_01s=0)miao-;if(Flag_24s)miao_01s=9;Daojishi_24s-;if(Daojishi_24s=0)Flag_24s=0;Flag_over=1;Daojishi_24s=24; Daojishi_01s=0; TR0=0; if(miao=255)TR0=0;Flag