单片机电子闹钟程序亲自写,可用

1、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 codebbtime=0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77

2、,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=

3、P1A7;sbit sec_clr=P1A。；sbit min_set_add=P1A3;sbit min_set_sub=P1A4；sbit hour_set_add=P1A1；sbit hour_set_sub=P1A2；sbit bb_set_add=P1A5；sbit bb_set_sub=P1A6；sbit speaker=P2A6；/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+;cl

4、ock1=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 1 TMOD=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

5、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()u

6、char 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

7、)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(cl

8、ock11=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

9、=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)bbdurati