基于51单片机的数码管时钟(带闹钟调时秒表).docx

/** * * * ********************************************************************** * * * * * ********************************************************* * * * * * * * * * * * 基于51单片机的数码管时钟程序 * * * * * * * * * * * * * ********************************************************* * * * * * ********************************************************************** * * * **/ #includestdio.h #define uint unsigned int #define uchar unsigned char sbit dula=P2^6; //申明u1锁存器的锁存端 sbit wela=P2^7; //申明u2锁存器的锁存端 sbit key1=P3^0; //功能键 sbit key2=P3^1;//增大键 sbit key3=P3^2;//减小键 sbit key4=P3^3;//秒表查看键 sbit beep=P2^3;//蜂鸣端 uchar num,num1,num2,numm; uchar numf,num,nums,num; uchar s,s1,f,f1,m,m1; uchar ns,ns1,nf,nf1; uchar numns,numnf; uchar dingshi; void display(uchar m,uchar m1,ucharf,uchar f1,uchar s,uchar s1); void display1(uchar nf,uchar nf1,uchar ns,uchar ns1); void key(); void key1(); void alram(); void di(); void delayms(xms); void T0_time() interrupt 1; void miaobiao(); uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x77,0x7c, 0x39,0x5e,0x79,0x71}; /********************************************************* 主函数void main() *********************************************************/ int main() { TMOD=0X01; TH0=(65536-46080)/256; TL0=(65536-46080)%256; EA=1; ET0=1; TR0=1; nums=12; numf=0; num2=0; num=0; while(1) { if(dingshi==0) { keyscan(); display(m,m1,f,f1,s,s1); alarm(); } else { miaobiao(); keyscan1(); display1(nf,nf1,ns,ns1); } } return 0; } /********************************************************* 蜂鸣器函数 di() *********************************************************/ void di() { beep=0; delayms(100); beep=1; } /********************************************************** 按键调时函数key() ********************