基于51单片机的数字钟设计.zip

#include <reg51.h> #include <absacc.h> #define uchar unsigned char uchar sceond0,minute0,hour0,sceond1,minute1,hour1,sceond2,minute2,hour2, u,alarmflag,alarmflag1,key0,key1,key2,key3,option; uchar t[3]={0,0,0}; uchar Tab[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};//显示字符0-9 sbit P1_0=P1^0; sbit P1_1=P1^1; sbit P1_2=P1^2; sbit P1_3=P1^3; sbit P1_4=P1^4; sbit P1_5=P1^5; sbit P3_0=P3^0; sbit P3_1=P3^1; void timeshow(uchar hour,uchar minute,uchar sceond); void functionchoice(); void lightfunction(); void alarmfunction(); void timecontrol(); timer0 (void) interrupt 1 using 1 { u++; TH0=(65536-50000)/256; TL0=(65536-50000)/256; } void delay() { uchar p,q; for(p=1000;p>0;p--) for(q=10;q>10;q++); } void main() { TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)/256; EA=1; ET0=1; TR0=1; option=0; alarmflag1=0; hour0=0,minute0=0,sceond0=0,hour1=0,minute1=0,sceond1=0,hour2=0,minute2=0; while(1) { functionchoice(); lightfunction(); alarmfunction(); delay(); } } /*******时间显示功能*******/ void timeshow(uchar hour,uchar minute,uchar sceond) { uchar a1,a2,b1,b2,c1,c2; a1=hour%10; a2=hour/10; b1=minute%10; b2=minute/10; c1=sceond%10; c2=sceond/10; P2=0x7f; P0=Tab[c1]; delay(); P2=0xbf; P0=Tab[c2]; delay(); P2=0xdf; P0=0x40; delay(); P2=0xef; P0=Tab[b1]; delay(); P2=0xf7; P0=Tab[b2]; delay(); P2=0xfb; P0=0x40; delay(); P2=0xfd; P0=Tab[a1]; delay(); P2=0xfe; P0=Tab[a2]; delay(); } /*******自动计时功能*******/ void timecontrol() { if(u==20) { u=0; sceond0++; while(sceond0==60) { sceond0=0; minute0++; if(minute0==60) { minute0=0; hour0++; if(hour0==24) hour0=0; } } } } /*******时间调节功能*******/ void keycontrol(uchar hour,uchar minute,uchar sceond) { if(P1_0==0) { delay(); if(P1_0==0&&key1==1) { key1=0; sceond++; if(sceond==60) sceond=0; delay(); } } if(P1_0==1) key1=1; if(P1_1==0) { delay(); if(P1_1==0&&key2==1) { key2=0; minute++; if(minute==60) minute=0; delay(); } } if(P1_1==1) key2=1; if(P1_2==0) { delay(); if(P1_2==0&&key3==1) { key3=0; hour++; if(hour==24) hour=0; delay(); } } if(P1_2==1) key3=1; t[0]=sceond; t[1]=minute; t[2]=hour; } /*******功能选择*******/ void functionchoice() { if(P1_3==1) key0=1; if(P1_3==0&&key0==1) { key0=0; option++; if(option==3) option=0; } if(option==0) { hour1=hour0,minute1=minute0,sceond1=sceond0; TR0=1; timecontrol(); timeshow(hour0,minute0,sceond0); delay(); } if(option==1) { hour0=hour1,minute0=minute1,sceond0=sceond1; TR0=0; keycontrol(hour1,minute1,sceond1); hour1=t[2],minute1=t[1],sceond1=t[0]; timeshow(hour1,minute1,sceond1); delay(); } if(option==2) { TR0=0; keycontrol(hour2,minute2,sceond2); hour2=t[2],minute2=t[1],sceond2=t[0]; timeshow(hour2,minute2,sceond2); delay(); } } /*******照明功能*******/ void lightfunction() { if(P1_5==0) P3_1=0; else P3_1=1; } /*******闹钟功能*******/ void alarmfunction() { if(P1_4==0) alarmflag1=1; if(hour2==hour0&&minute2==minute0) alarmflag=1; else { alarmflag=0; alarmflag1=0; } if(alarmflag==1&&alarmflag1==0) P3_0=0; else P3_0=1; }