51单片机电子闹钟程序(亲自编写-可用).doc

学校电子钟，有闹钟功能，按键可调时间，可调打铃时间，打铃时间长短显示，每个模块有功能注释。其中正常时间显示和闹钟时间显示可用一个开关来调整。芯片选择STC89C52程序：#include#include#define uchar unsigned char#define uint unsigned int/定义显示段码uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00;uchar code bbtime=0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;uchar clock=0,0,0,0;uchar clock1=12,30,0;uchar weikong6;uchar bbduration=4;uchar lingtime=9;/学校打铃时间组uchar shangwu1=8,30;uchar shangwu2=10,0;uchar shangwu3=10,20;uchar shangwu4=11,50;uchar xiawu1=13,30;uchar xiawu2=15,00;uchar xiawu3=15,15;uchar xiawu4=16,45;/按键定义sbit mode=P17;sbit sec_clr=P10;sbit min_set_add=P13;sbit min_set_sub=P14;sbit hour_set_add=P11;sbit hour_set_sub=P12;sbit bb_set_add=P15;sbit bb_set_sub=P16;sbit speaker=P26;/延时函数void delay(unsigned int t)while(t-);/时钟进位函数void clockjinwei()clock0+;if(clock0=20) clock1+;clock0=0; if(clock1=60) clock2+; clock1=0; if(clock2=60) clock3+; clock2=0; if(clock3=24)clock3=0;/定时器0中断服务函数void timer0(void) interrupt 1 using 1TMOD=0x01;TH0=0x3c;TL0=0xb0;clockjinwei();/时钟分位显示函数void fenwei()weikong0=clock3/10;weikong1=clock3%10;weikong2=clock2/10;weikong3=clock2%10;weikong4=clock1/10;weikong5=clock1%10;/闹钟分位显示函数void naofen()weikong0=clock10/10;weikong1=clock10%10;weikong2=clock11/10;weikong3=clock11%10;weikong4=clock12/10;weikong5=clock12%10;/闹钟定时显示函数void naozhongdisplay()uchar z,s;uchar x=0x01;naofen();for(z=0;z6;z+)P2=0;P0=tableweikongz;P2=x;x=_crol_(x,1);for(s=0;s255;s+);/时钟显示函数void display()uchar i,j;uchar x=0x01;fenwei();for(i=0;i6;i+)P2=0;P0=tableweikongi;P2=x;x=_crol_(x,1);for(j=0;j255;j+);/总显示函数void zhongxian()if(mode=1)delay(100); if(mode=1)display();if(mode=0)delay(100); if(mode=0)naozhongdisplay();/按键处理程序void key_set()zhongxian();P1=0xff;if(min_set_add=0)delay(100);if(min_set_add=0)if(mode=1) clock2+; if(clock2=60) clock2=0; while(min_set_add=0) zhongxian(); if(mode=0)clock11+;if(clock11=60)clock11=0;while(min_set_add=0) zhongxian();/if(min_set_sub=0)delay(100);if(min_set_sub=0)if(mode=1) clock2-; if(clock2=0) clock2=59; while(min_set_sub=0) zhongxian();if(mode=0)clock11-;if(clock11=0)clock11=59;while(min_set_sub=0) zhongxian();/if(hour_set_add=0)delay(100);if(hour_set_add=0)if(mode=1) clock3+; if(clock3=24) clock3=0; while(hour_set_add=0) zhongxian();if(mode=0)clock10+;if(clock10=24)clock10=0;while(hour_set_add=0) zhongxian();/if(hour_set_sub=0)delay(100);if(hour_set_sub=0)if(mode=1) clock3-; if(clock3=0) clock3=23; while(hour_set_sub=0) zhongxian(); if(mode=0)clock10-;if(clock10=0)clock10=23;while(hour_set_sub=0) zhongxian(); /if(sec_clr=0)delay(100);if(sec_clr=0)clock1=0;while(sec_clr=0) zhongxian();/闹钟响铃函数void bb()if(clock1=bbduration)speaker=1;delay(100);speaker=0;else speaker=0;/打铃函数void daling()if(clock115)bbduration=0;/响铃按键处理函数void bbtime_set()bbtimeshow();if(bb_set_add=0)delay(100);if(bb_set_add=0)bbduration+;while(bb_set_add=0)bbtimeshow();if(bb_set_sub=0)delay(100);if(bb_set_sub=0)bbduration-;while(bb_set_sub=