基于单片机C语言电子时钟完整版(闹钟,整点报时)
51单片机c语言电子钟(已加入调时、闹铃、整点报时功能)
51单片机c语言电子钟（已加入调时、闹铃、整点报时功能）效果图：程序如下：//51单片机c语言电子钟（已加入调时、闹铃、整点报时功能）#include<reg51.h>#include<absacc.h>#define uchar unsigned char#define uint unsigned int/*七段共阴管显示定义*///此表为LED 的字模,共阴数码管0-9 -uchar code dispcode[] ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40}; //段码控制/*定义并初始化变量*/uchar seconde=0;//秒uchar minite=0;//分uchar hour=12; //时uchar shi=0;//闹铃功能uchar fen=0;uchar bjcs;//报警次数sbit P1_0=P1^0; //second 调整定义sbit P1_1=P1^1; //minite调整定义sbit P1_2=P1^2; //hour调整定义sbit P1_5=P1^5; //整点报时sbit P1_3=P1^3; //闹铃功能，调整时间sbit P1_6=P1^6; //调整时sbit P1_7=P1^7; //调整分sbit P1_4=P1^4; //关闭闹铃/*函数声明*/void delay(uint k ); //延时子程序void time_pro( ); //时间处理子程序void display( ); //显示子程序void keyscan( ); //键盘扫描子程序/*xx子程序*/void delay (uint k){uchar j;while((k--)!=0){for(j=0;j<125;j++){;}}}/*时间处理子程序*/void time_pro(void){if(seconde==60){seconde=0;minite++;if(minite==60){minite=0;hour++;if(hour==24){hour=0;}}}}/*显示子程序*/void display(void){if(P1_3==1){P2=0XFE; P0=dispcode[seconde%10];//秒个位delay(1);P2=0XFD;P0=dispcode[seconde/10];//秒十位delay(1);P2=0XFB;P0=dispcode[10];//间隔符-delay(1);P2=0XF7;P0=dispcode[minite%10];//分个位delay(1);P2=0XEF;P0=dispcode[minite/10];//分十位delay(1);P2=0XDF;P0=dispcode[10];//间隔符-delay(1);P2=0XBF;P0=dispcode[hour%10];//时个位delay(1);P2=0X7F;P0=dispcode[hour/10];//时十位delay(1);}}/*键盘扫描子程序*/void keyscan(void){if(P1_0==0)//秒位的调整{delay (30);if(P1_0==0){seconde++;if(seconde==60){seconde=0;}}delay(250);}if(P1_1==0)//分位的调整{delay(30);if(P1_1==0){minite++;if(minite==60){minite=0;}}delay(250);}if(P1_2==0)//时位的调整{delay(30);if(P1_2==0){hour++;if(hour==24){hour=0;}}delay(250);}}/*整点报警*/void zhengdian (void){if((seconde==0)&(minite==0))//整点报时{P1_5=0;delay(1000);P1_5=1;}}/*定时闹钟*/void dingshi(void){if(P1_3==0)//按住P1_3BU不松，显示闹铃设置界面，分别按P1_6、P1_7设置闹铃时间。
51单片机电子闹钟程序(亲自编写,可用)
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<reg51.h>#include<intrins.h>#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,0x77,0x7c,0x39,0x5e,0x79,0x71}; uchar clock[]={0,0,0,0};uchar clock1[]={12,30,0};uchar weikong[6];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=P1^7;sbit sec_clr=P1^0;sbit min_set_add=P1^3;sbit min_set_sub=P1^4;sbit hour_set_add=P1^1;sbit hour_set_sub=P1^2;sbit bb_set_add=P1^5;sbit bb_set_sub=P1^6;sbit speaker=P2^6;//延时函数void delay(unsigned int t){while(t--);//时钟进位函数void clockjinwei(){clock[0]++;if(clock[0]==20){clock[1]++;clock[0]=0;if(clock[1]==60){clock[2]++;clock[1]=0;if(clock[2]==60){clock[3]++;clock[2]=0;if(clock[3]==24)clock[3]=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(){weikong[0]=clock[3]/10;weikong[1]=clock[3]%10;weikong[2]=clock[2]/10;weikong[3]=clock[2]%10;weikong[4]=clock[1]/10;weikong[5]=clock[1]%10;}//闹钟分位显示函数void naofen(){weikong[0]=clock1[0]/10;weikong[1]=clock1[0]%10;weikong[2]=clock1[1]/10;weikong[3]=clock1[1]%10;weikong[4]=clock1[2]/10;weikong[5]=clock1[2]%10; }//闹钟定时显示函数void naozhongdisplay(){uchar z,s;uchar x=0x01;naofen();for(z=0;z<6;z++){P2=0;P0=table[weikong[z]];P2=x;x=_crol_(x,1);for(s=0;s<255;s++);}}//时钟显示函数void display(){uchar i,j;uchar x=0x01;fenwei();for(i=0;i<6;i++){P2=0;P0=table[weikong[i]];P2=x;x=_crol_(x,1);for(j=0;j<255;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){clock[2]++;if(clock[2]==60){clock[2]=0;}while(min_set_add==0)zhongxian();}}if(mode==0){clock1[1]++;if(clock1[1]==60){clock1[1]=0;}while(min_set_add==0)zhongxian();}}//if(min_set_sub==0){delay(100);if(min_set_sub==0){if(mode==1){clock[2]--;if(clock[2]==0)clock[2]=59;}while(min_set_sub==0)zhongxian();if(mode==0){clock1[1]--;if(clock1[1]==0)clock1[1]=59;}while(min_set_sub==0)zhongxian();}}//if(hour_set_add==0){delay(100);if(hour_set_add==0){if(mode==1){clock[3]++;if(clock[3]==24){clock[3]=0;}while(hour_set_add==0)zhongxian();}if(mode==0){clock1[0]++;if(clock1[0]==24){clock1[0]=0;}while(hour_set_add==0)zhongxian();}}}//if(hour_set_sub==0){delay(100);if(hour_set_sub==0){if(mode==1){clock[3]--;if(clock[3]==0)clock[3]=23;}while(hour_set_sub==0)zhongxian();if(mode==0){clock1[0]--;if(clock1[0]==0)clock1[0]=23;}while(hour_set_sub==0)zhongxian();}}//if(sec_clr==0){delay(100);if(sec_clr==0){clock[1]=0;}while(sec_clr==0)zhongxian();}}//闹钟响铃函数void bb(){if(clock[1]<=bbduration){speaker=1;delay(100);speaker=0;}else speaker=0;}//打铃函数void daling(){if(clock[1]<=lingtime){speaker=1;delay(100);speaker=0;}else speaker=0;}//时间比较函数void bijiao(){if(clock[3]==shangwu1[0]){if(clock[2]==shangwu1[1])daling();}if(clock[3]==shangwu2[0]){if(clock[2]==shangwu2[1])daling();}if(clock[3]==shangwu3[0]){if(clock[2]==shangwu3[1])daling();}if(clock[3]==shangwu4[0]){if(clock[2]==shangwu4[1])daling();}if(clock[3]==xiawu1[0]){if(clock[2]==xiawu1[1])daling();}if(clock[3]==xiawu2[0]){if(clock[2]==xiawu2[1])daling();}if(clock[3]==xiawu3[0]){if(clock[2]==xiawu3[1])daling();}if(clock[3]==xiawu4[0]){if(clock[2]==xiawu4[1])daling();}}//闹钟比较void naobijiao(){if(clock[3]==clock1[0]){if(clock[2]==clock1[1]||clock[2]==clock1[1]+1||clock[2]==clock1[1]+2) bb();}}//响铃时长显示函数void bbtimeshow(){P3=bbtime[bbduration];if(bbduration>15)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==0)bbtimeshow();}}//主程序void main(){EA=1;ET0=1;TR0=1;while(1){key_set();bijiao();bbtime_set();naobijiao();}}电路图：分四部分显示：如果在学习这个程序过程中有什么问题，可以发邮件到******************询问。
超详细注释的C语言单片机电子时钟
ClockBeep(); //整点报时
}
ห้องสมุดไป่ตู้ }
}
void Init(void)
TL0 = (65536 - INTERRUPT_TIME * 1000) % 256;
ET0 = 1; //允许定时器0开启
EA = 1; //全局中断开启
//位选码，控制位选
//如若总线直连更为简单，使用译码器节约接口
unsigned char code bit_select[]={0xe3,0xe7,0xeb,0xef,0xf3,0xf7,0xfb,0xff};
//段选码，8位共阴极数码管的段选都连到P0口
//各个数码管为并联关系
unsigned char code segment_select[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
P0 = segment_select[CLEAR]; //清空数码管段选
TR0 = 0; //停止定时器0
reset = 0; //初始化各个变量
unsigned int time_count;//中断中的计数器
unsigned int beep_time = 0; //定义蜂鸣器时间变量
bit reset, start, beep_flag;//复位、开始、蜂鸣器的标志位
//初始化函数
void Init(void);
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00,0x40};//0~F，清空，最后一位为分隔符
基于c51功能最全的电子钟程序(lcd1602)
功能最全的电子钟【单片机】c51数字时钟（带年月日显示）摘要：本设计以单片机为核心，lcd1602显示。
采用独立键盘输入能任意修改当前时间日期和设定闹钟时间。
具有显示年月日（区分闰年和二月），闹钟报警和整点报时功能主程序：/********************************************************************************************************************************************************************************* ****************************************** lcd1602电子钟********************************************************************************************************************************** *************************************************************************************************** ********************/# include <reg52.h># include "lcd16024.h"sbit key1 = P2^0; //调整sbit key2 = P2^1; //加1sbit key3 = P2^2; //减1sbit speaker = P2^3; //蜂鸣器sbit key4 = P2^4; //闹钟设计bit cal_year = 1; //进入判断闰年标志位bit leap_year; //闰年标志位bit calculate = 0; //日加一标记bit run = 0; //闹钟标志bit beep = 0; //整点报时标志//uint8 num = 0; //调整是给的脉冲uint8 code str1[] = "D: ";uint8 code str2[] = "T: ";uint8 code str3[] = "Wek";uint8 daystr[]="2013-07-29 "; //年月日格式uint8 timestr[]="21:30:59 N"; //时分秒格式uint8 daystr1[]="2013-07-29 "; //闹钟年月日格式uint8 timestr1[]="21:30:59 N"; //闹钟时分秒格式uint8 numweek = 0; //星期加1标记char week = 1; //星期char sec = 53; //秒char min = 50; //分char hour = 23; //时uint8 day = 30; // 日uint8 month = 9; //月uint16 year = 2013; //年char week1 = 1; //闹钟星期char sec1 = 58; //闹钟秒char min1 = 50; //闹钟分char hour1 = 23; //闹钟时uint8 day1 = 30; //闹钟日uint8 month1 = 9; //闹钟月uint16 year1 = 2013; //闹钟年uint8 WeekData1; //闹钟星期标记uint8 number = 0; //定时uint8 WeekData; //星期标记uint8 speaker_num; //整点报时次数uint8 scan_key(void); //函数声名/****************************************************************************** ***************************** 更新LCD时间分离读取******************************************************************************************************************* *******/void TimeChange(){//时分秒timestr[7] = sec%10+'0';timestr[6] = sec/10+'0';timestr[4] = min%10+'0';timestr[3] = min/10+'0';timestr[1] = hour%10+'0';timestr[0] = hour/10+'0';//年月日daystr[9] = day%10+'0';daystr[8] = day/10+'0';daystr[6] = month%10+'0';daystr[5] = month/10+'0';daystr[3] = year%10+'0';daystr[2] = year/10%10+'0';daystr[1] = year/100%10+'0';daystr[0] = year/1000+'0';//星期WeekData = week+'0';}/****************************************************************************** ***************************** 闹钟更新LCD时间分离读取******************************************************************************************************************* *******/void TimeChange1(){//时分秒timestr1[7] = sec1%10+'0';timestr1[6] = sec1/10+'0';timestr1[4] = min1%10+'0';timestr1[3] = min1/10+'0';timestr1[1] = hour1%10+'0';timestr1[0] = hour1/10+'0';//年月日daystr1[9] = day1%10+'0';daystr1[8] = day1/10+'0';daystr1[6] = month1%10+'0';daystr1[5] = month1/10+'0';daystr1[3] = year1%10+'0';daystr1[2] = year1/10%10+'0';daystr1[1] = year1/100%10+'0';daystr1[0] = year1/1000+'0';//星期WeekData1 = week1+'0';}/****************************************************************************** ***************************** 初始化系统定时器0 ******************************************************************************************************************* *******/void systimer0_init(void){TMOD |=0x01;//设置为1时用或（|）TMOD &=0xfd;//设置为0时用与（&）TH0 = 0xDC; // 定时10msTL0 = 0x00;EA = 1;ET0=1;TR0=1;EX0 = 1;}/****************************************************************************** ***************************** 闹钟时间设置*************************************************************************************************************** *******/void naozhong(){uint8 number = 1;uint8 a = 0;uint8 b = 0;if(0 == key4){Delay1Ms(5);if(0 == key4){a = 1;LCD_write_command(0xc0+9);LCD_write_command(0x0f);}while(!key4);}while(a){if(0 == key4){Delay1Ms(5);if(0 == key4){a = 0;run = ~run;while(!key4);}}if(run){timestr[9] = 'Y';}else{timestr[9] = 'N';}if(0 == key1){Delay1Ms(5);if(0 == key1){b = 1;}while(!key1);}while(b){if(0 == key1){Delay1Ms(5);if(0 == key1){number++;if(4 == number)b = 0;}while(!key1);if(number == 1){LCD_write_command(0xc0+9);LCD_write_command(0x0f);}if(number == 2){LCD_write_command(0xc0+6);LCD_write_command(0x0f);}if(number == 3){LCD_write_command(0xc0+3);LCD_write_command(0x0f);}}}switch(number){case 1:if(0 == key2) //闹钟秒加1的设置{Delay1Ms(5);if(0 == key2){sec1++;if(60 == sec1){sec1 = 0;}while(!key2);timestr1[7] = sec1%10+'0';timestr1[6] = sec1/10+'0';LCD_write_char(8,1,timestr1[6]);LCD_write_char(9,1,timestr1[7]);LCD_write_command(0xc0+9);}}if(0 == key3) //闹钟秒减1的设置Delay1Ms(5);if(0 == key3){sec1--;if(sec1 < 0){sec1 = 59;}while(!key3);timestr1[7] = sec1%10+'0';timestr1[6] = sec1/10+'0';LCD_write_char(8,1,timestr1[6]);LCD_write_char(9,1,timestr1[7]);LCD_write_command(0xc0+9);}}break;case 2:if(0 == key2) //闹钟分加1的设置{Delay1Ms(5);if(0 == key2){min1++;if(60 == min1){min1 = 0;}while(!key2);timestr1[4] = min1%10+'0';timestr1[3] = min1/10+'0';;LCD_write_char(5,1,timestr1[3]);LCD_write_char(6,1,timestr1[4]);LCD_write_command(0xc0+6);}}if(0 == key3) //闹钟分减1的设置{Delay1Ms(5);if(0 == key3){min1--;if(min1 < 0){min1 = 59;}while(!key3);timestr1[4] = min1%10+'0';timestr1[3] = min1/10+'0';;LCD_write_char(5,1,timestr1[3]);LCD_write_char(6,1,timestr1[4]);LCD_write_command(0xc0+6);}}break;case 3:if(0 == key2) //闹钟时加1的设置{Delay1Ms(5);if(0 == key2){hour1++;if(24 == hour1){hour1 = 0;}while(!key2);timestr1[1] = hour1%10+'0';timestr1[0] = hour1/10+'0';LCD_write_char(2,1,timestr1[0]);LCD_write_char(3,1,timestr1[1]);LCD_write_command(0xc0+3);}}if(0 == key3) //闹钟时减1的设置{Delay1Ms(5);if(0 == key3){hour1--;if(hour1 < 0){hour1 = 23;}while(!key3);timestr1[1] = hour1%10+'0';timestr1[0] = hour1/10+'0';LCD_write_char(2,1,timestr1[0]);LCD_write_char(3,1,timestr1[1]);LCD_write_command(0xc0+3);}}break;case 4:b = 0;LCD_write_command(0x0c);break;}}}LCD_write_command(0x0c);while(!key4);}/****************************************************************************** ***************************** 判断按键进入时间调整*************************************************************************************************************** *******/uint8 scan_key(void){uint8 number = 1;uint8 a = 0;if(0 == key1){Delay1Ms(5);if(0 == key1){while(!key1);a = 1;LCD_write_command(0xc0+9);LCD_write_command(0x0f);}}while(a){if(0 == key1){Delay1Ms(5);if(0 == key1){number++;while(!key1);TR0 = 0;if(number == 2){LCD_write_command(0xc0+6);LCD_write_command(0x0f);}if(number == 3){LCD_write_command(0xc0+3);LCD_write_command(0x0f);}if(number == 4){LCD_write_command(0x80+11);LCD_write_command(0x0f);}if(number == 5){LCD_write_command(0x80+8);LCD_write_command(0x0f);}if(number == 6){LCD_write_command(0x80+5);LCD_write_command(0x0f);}if(number == 7){LCD_write_command(0xc0+14);LCD_write_command(0x0f);}if(8 == number){LCD_write_command(0x0c);a = 0;number = 0;}}}switch(number){case 1:if(0 == key2) //秒加1的设置{Delay1Ms(5);if(0 == key2){sec++;if(60 == sec){sec = 0;}timestr[7] = sec%10+'0';timestr[6] = sec/10+'0';LCD_write_char(8,1,timestr[6]);LCD_write_char(9,1,timestr[7]);LCD_write_command(0xc0+9);while(!key2);}}if(0 == key3) //秒减1的设置{Delay1Ms(5);if(0 == key3){sec--;if(sec < 0){sec = 59;}timestr[7] = sec%10+'0';timestr[6] = sec/10+'0';LCD_write_char(8,1,timestr[6]);LCD_write_char(9,1,timestr[7]);LCD_write_command(0xc0+9);while(!key3);}}break;case 2:if(0 == key2) //分加1的设置{Delay1Ms(5);if(0 == key2){min++;if(60 == min){min = 0;}timestr[4] = min%10+'0';timestr[3] = min/10+'0';;LCD_write_char(5,1,timestr[3]);LCD_write_char(6,1,timestr[4]);LCD_write_command(0xc0+6);while(!key2);}}if(0 == key3) //分减1的设置{Delay1Ms(5);if(0 == key3){min--;if(min < 0){min = 59;}timestr[4] = min%10+'0';timestr[3] = min/10+'0';LCD_write_char(5,1,timestr[3]);LCD_write_char(6,1,timestr[4]);LCD_write_command(0xc0+6);while(!key3);}}break;case 3:if(0 == key2) //时加1的设置{Delay1Ms(5);if(0 == key2){hour++;while(!key2);if(24 == hour){hour = 0;}timestr[1] = hour%10+'0';timestr[0] = hour/10+'0';LCD_write_char(2,1,timestr[0]);LCD_write_char(3,1,timestr[1]);LCD_write_command(0xc0+3);}}if(0 == key3) //时减1的设置{Delay1Ms(5);if(0 == key3){while(!key3);hour--;if(hour < 0){hour = 23;}timestr[1] = hour%10+'0';timestr[0] = hour/10+'0';LCD_write_char(2,1,timestr[0]);LCD_write_char(3,1,timestr[1]);LCD_write_command(0xc0+3);}}break;case 4:if(0 == key2) //日加1的设置{Delay1Ms(5);if(0 == key2){while(!key2);calculate = 1;if(calculate == 1){if(month==1|month==3|month==5|month==7|month==8|month==10|month==12){day++;if(day > 31){day=1;}}if(month==4|month==6|month==9|month==11){day++;if(day > 30){day=1;}}if(month == 2){cal_year = 1;while(cal_year == 1){leap_year = ((year % 4 == 0 && year % 100 != 0)||(year % 400 == 0));cal_year = 0;}if(leap_year==1){day++;if(day > 30){day=1;}}else{day++;if(day > 29){day=1;}}}calculate = 0;}daystr[9] = day%10+'0';daystr[8] = day/10+'0';LCD_write_char(10,0,daystr[8]);LCD_write_char(11,0,daystr[9]);LCD_write_command(0x80+11);}}if(0 == key3) //日减1的设置{Delay1Ms(5);if(0 == key3){while(!key3);calculate = 1;if(calculate == 1){if(month==1|month==3|month==5|month==7|month==8|month==10|month==12){day--;if(day == 0){day=31;}}if(month==4|month==6|month==9|month==11){day--;if(day == 0){day=30;}}if(month == 2){cal_year = 1;while(cal_year == 1){leap_year = ((year % 4 == 0 && year % 100 != 0)||(year % 400 == 0));cal_year = 0;}if(leap_year==1){day--;if(day == 0){day=30;}}else{day--;if(day == 0){day=29;}}}calculate = 0;}daystr[9] = day%10+'0';daystr[8] = day/10+'0';LCD_write_char(10,0,daystr[8]);LCD_write_char(11,0,daystr[9]);LCD_write_command(0x80+11);}}break;case 5:if(0 == key2) //月加1的设置{Delay1Ms(5);if(0 == key2){while(!key2);month++;if(13 == month){month = 1;}daystr[6] = month%10+'0';daystr[5] = month/10+'0';LCD_write_char(7,0,daystr[5]);LCD_write_char(8,0,daystr[6]);LCD_write_command(0x80+8);}}if(0 == key3) //月减1的设置{Delay1Ms(5);if(0 == key3){while(!key3);month--;if(month == 0){month = 12;}daystr[6] = month%10+'0';daystr[5] = month/10+'0';LCD_write_char(7,0,daystr[5]);LCD_write_char(8,0,daystr[6]);LCD_write_command(0x80+8);}}break;case 6:if(0 == key2) //年加1的设置{Delay1Ms(5);if(0 == key2){while(!key2);year++;}daystr[3] = year%10+'0';daystr[2] = year/10%10+'0';daystr[1] = year/100%10+'0';daystr[0] = year/1000+'0';LCD_write_char(2,0,daystr[0]);LCD_write_char(3,0,daystr[1]);LCD_write_char(4,0,daystr[2]);LCD_write_char(5,0,daystr[3]);LCD_write_command(0x80+5);}if (0 == key3) //年减1的设置{Delay1Ms(5);if(0 == key3){while(!key3);year--;if(year == 0){year = 2020;}daystr[3] = year%10+'0';daystr[2] = year/10%10+'0';daystr[1] = year/100%10+'0';daystr[0] = year/1000+'0';LCD_write_char(2,0,daystr[0]);LCD_write_char(3,0,daystr[1]);LCD_write_char(4,0,daystr[2]);LCD_write_char(5,0,daystr[3]);LCD_write_command(0x80+5);}}break;case 7:if(0 == key2) //星期加1的设置{Delay1Ms(5);if(0 == key2){while(!key2);week++;if(7 == week){week = 0;}LCD_write_char(14,1,week+'0');LCD_write_command(0xc0+14);}}if (0 == key3) //星期减1的设置{Delay1Ms(5);if(0 == key3){while(!key3);week--;if(week < 0){week = 6;}LCD_write_char(14,1,week+'0');LCD_write_command(0xc0+14);}}break;case 8:TR0 = 1;break;}}}/****************************************************************************** ***************************** 主函数******************************************************************************************************************* *******/void main(void){systimer0_init();LCD_init();LCD_write_str(0,0,str1);LCD_write_str(0,1,str2);LCD_write_str(13,0,str3);speaker = 0;while (1){TimeChange();scan_key();naozhong();LCD_write_str(2,0,daystr);LCD_write_str(2,1,timestr);LCD_write_char(14,1,WeekData);if(1 == run){if(sec==sec1 & month==month1 & hour==hour){speaker_num =30;beep = 1;}}else{speaker_num =0;beep = 0;}}}/****************************************************************************** ***************************** 定时中断0 ******************************************************************************************************************* *******/void time_0() interrupt 1{TH0 = 0xDC; // 定时10msTL0 = 0x00;number++;if(number ==100){sec++;if(beep){speaker=!speaker;speaker_num--;if(speaker_num == 0){beep=0;speaker = 0;}}if(sec == 60){sec = 0;min++;if(min == 60){min = 0;hour++; //小时加1speaker_num = hour%12; //蜂鸣器响的次数beep = 1;if(hour == 24){hour = 0;calculate = 1;if(calculate == 1) //判断这个月有多少天{if(month==1|month==3|month==5|month==7|month==8|month==10|month==12){day++;if(month==7|month==12){week++;if(7 == week){week = 0;}}else{if(day <= 31){week++;if(7 == week){week = 0;}}}if(day > 31){if(month==7|month==12){day = 1;}else{day=0;}month++;if(month > 12){month=1;year++;cal_year=1;}}}if(month==4|month==6|month==9|month==11) {day++;week++;if(7 == week){week = 0;}if(day > 30){day=1;month++;if(month > 12){month=1;year++;cal_year=1;}}}if(month == 2){while(cal_year == 1){leap_year = ((year % 4 == 0 && year % 100 != 0)||(year % 400 == 0));cal_year = 0;}if(leap_year==1){day++;if(day <= 30){week++;if(7 == week){week = 0;}}if(day > 30){day=1;month++;if(month > 12){month=1;year++;cal_year=1;}}}else{day++;week++;if(7 == week){week = 0;}if(day > 29){day=1;month++;if(month > 12){month=1;year++;cal_year=1;}}}}}calculate=0;}}}}}////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Lcd1602.c子程序：////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// /****************************************************************************** ***************************** lcd1602低层函数********************************************************************************************************************* *******/# include <reg52.h># include <intrins.h># include "lcd16024.h"# define LCD_DATA P0 //LCD1602的数据口定义sbit LCD_RS = P0^0; //LCD1602控制线的定义，4位控制方式sbit LCD_RW = P0^1;sbit LCD_EN = P0^2;/****************************************************************************** ***************************** 延时1MS********************************************************************************************************************* *******/void Delay1Us(uint16 n){for(;n>0;n--){_nop_();}}/****************************************************************************** ***************************** 延时1MS********************************************************************************************************************* *******/void Delay1Ms(uint16 n){while(n--){Delay1Us(1000);}}/****************************************************************************** ***************************** 延时1MS********************************************************************************************************************* *******/void LCD_en_write(void){LCD_EN=0;LCD_EN=1;Delay1Us(1);LCD_EN=0;}/****************************************************************************** ************************ LCD写一个字节命令函数************************************************************************************************************ *******/void LCD_write_command(uint8 command){Delay1Us(16);LCD_RS=0;LCD_RW=0;LCD_DATA&=0x0f;LCD_DATA|=command&0xf0;LCD_en_write();command=command<<4;LCD_DATA&=0x0f;LCD_DATA|=command&0xf0;LCD_en_write();}/****************************************************************************** ********************** LCD写一个字节数据函数*************************************************************************************************************** *******/void LCD_write_data(uint8 Data){Delay1Us(16);LCD_RS=1;LCD_RW=0;LCD_DATA&=0x0f;LCD_DATA|=Data&0xf0;LCD_en_write();Data=Data<<4;LCD_DATA&=0x0f;LCD_DATA|=Data&0xf0;LCD_en_write();}/****************************************************************************** ***************************** LCD1602光标定位函数************************************************ x--列0~15；y--行0~1********************************************************************************************************* *******/void LCD_set_xy(uint8 x,uint8 y){uint8 address;if(y==0)address=0x80+x;else address=0xc0+x;LCD_write_command(address);}/***************************************************************************************************** LCD1602 初始化函数，四位显示方式******************************************************************************************************* *******/void LCD_init(){LCD_write_command(0x28);// Delay1Us(40);LCD_write_command(0x28);LCD_write_command(0x0c);LCD_write_command(0x01);LCD_write_command(0x06);Delay1Ms(2);}/****************************************************************************** ***************************** LCD写字符串函数******************************************************* x--列0~15；y--行0~1******************************************************* s指向字符串数组**************************************************************************************************************** *******/void LCD_write_str(uint8 x,uint8 y,uint8 *s){LCD_set_xy(x,y);while(*s){LCD_write_data(*s);s++;}}/****************************************************************************** ***************************** LCD写一个字符函数******************************************************* x--列0~15；y--行0~1******************************************************* d--字符的ASCII码**************************************************************************************************************** *******/void LCD_write_char(uint8 x,uint8 y,uint8 d){LCD_set_xy(x,y);LCD_write_data(d);}/*////////////////////////////////////////////////////////////////// 等待繁忙标志/////////////////////////////////////////////////////////////////void LCD_wait(void){P0 = 0xFF;do{LCD_RS = 0;LCD_RW = 1;LCD_EN = 0;LCD_EN = 1;}while (BUSY == 1);LCD_EN = 0;}*//****************************************************************************** ***************************** LCD1602左移********************************************************************************************************************* *******void LCD_youyi(uint8 y,uint8 *s){LCD_write_str(17,y,s);for(a=0;a<16;a++){LCD_write_command(0x1c); //左移LCD_write_command(0x1c); 为右移Delay1Ms(6);}}*///LCD_write_command(0x0d);//光标闪烁//LCD_write_command(0x0e);//光标显示不闪烁//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Lcd1602.h头文件////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// #ifndef _LCD16024_H_#define _LCD16024_H_typedef unsigned char uint8;typedef unsigned int uint16;typedef unsigned long uint32;void Delay1Us(uint16 n);void Delay1Ms(uint16 n);void LCD_write_data(uint8 dat);void LCD_write_command(uint8 com); //BuysC为0时忽略忙检测void LCD_set_xy(uint8 x,uint8 y);void LCD_en_write(void);void LCD_write_char(uint8 x, uint8 y, uint8 Data1);void LCD_write_str(uint8 x, uint8 y,uint8 *s);void LCD_init();//void LCD_wait(void);//void LCD_youyi(uint8 y,uint8 *s);#endif。
基于郭天祥单片机数码管的电子钟(含闹钟、整点报时)
基于单片机数码管的电子钟(郭天祥系列单片机)功能说明(D本电子钟可以显示当前时刻、年月日和闹钟时刻。
不同时间的显示可以用key4来切换。
(2)、独立键盘key—key4(左到右)调节不同功能，7段数码管显示。
(3)整点提示功能:当时间为整点时,蜂鸣器会滴滴滴响，响20秒；(4)闹铃功能:本程序有闹铃功能，当定时时间到时，闹铃会滴滴滴报警，报警30秒；(5)附加功能:当在闹铃和整点时,8个发光二极管会闪亮;(6)时、分、秒之间和年、月、日之间也是用分割。
2、键盘控制(1)key1-键移动调整单位，每按一次移动一个单位，可调整时分秒、年月日和闹钟时间。
比如：在显示时分秒时，按下keyl 键, 可通过key2和key3对'秒'加减；再按一下keyl,可对"分'加减;再按一下keyl,可对"时'加减；再按keyl,时间开始走动(2)key2-加 1 ； key3-减 1;(3)key4-键切换时分秒、年月日和闹铃时间的显示。
比如：当前为时分秒，按一下key4,则显示年月；再按一下，则显示闹铃时间；再按一下，则显示时分秒时间。
附录：C语言程序〃设计项目:带闹铃的电子钟//功能：keyV键:开始/调时分秒/调年月日/调定时// key2 ■键:加 1// key3-键:减 1// key4-键:切换页面#in clude<reg52.h>#define uchar unsigned char#define uint unsigned intsbit dula=P2A6;sbit wela=P2A7;sbit key1=P3A4;sbit key2=P3A5;sbit key3=P3A6;sbit key4=P3A7;sbit bear=P2A3;uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};uchar sed ,hour1 ,year1 ,mon1 ,day1,tempi ,temp2,sec2,min2,hour2; void keyscan();void display(uchar hour,uchar min,uchar sec);void delay(uint z){uint x,y;for(x=0;x<z;x++)for(y=0;y<110;y++);}void init(){TMOD=0X02；TH0=6;TL0=6;EA=1;ET0=1;TR0=1;hour1=00;mini =00;sed =00;year1=12;mon1=03;day1=10;void display(uchar hour,uchar min,uchar sec) { uchar s1 ,s2,m15m2,h1 ,h2;s2=sec/10;s1=sec%10;m2=min/10;m1=min%10;h2=hour/10;h1=hour%10;dula=1;P0=table[h2];dula=0;P0=0XFF;wela=1;P0=0XFE;delay(1);dula=1;P0=table[h1]+0x80;dula=0;P0=0XFF;wela=1;P0=0XFd;delay(1);dula=1;P0=table[m2];dula=0;P0=0XFF;wela=1;P0=0XFb;delay(1);dula=1;P0=table[m1]+0x80;dula=0;P0=0XFF;wela=1;P0=0XF7;delay(1);dula=1;P0=table[s2];dula=0;PO=OXFf;wela=1;P0=0Xef;delay(1);dula=1; PO=table[s1J; dula=0; P0=0XFF; wela=1; PO=OXdf; delay(1);}void keyscan()if(key1 ==0)delay(10); if(key1 ==0)//TR0=0; tempi++; if(temp1 ==4){tempi=;TR0=1;while(!key1)switch(temp2){case 0:display(hour1,sec1 );break; case1:display(year1 ,mon1 ,day1 );break; case2:display(hour2,min2,sec2);break;if(key2==0){delay(10); if(key2==0){ if(temp2==0) { TR0=0;switch(templ){case 1:sed ++;if(sec1 ==60)sec1 =O;break;case 2:min1 ++;if(min1 ==60)min1 =O;break;case 3:hour1 ++;if(hour1 ==24)hour1 =O;break;while(!key2) display(hour1 ,min1 ,sec1);if(temp2==1) { TR0=1;switch(templ)case 1:day1 ++;if(day1==31 )day1=1 ;break; case 2:mon1 ++;if(mon1==13)mon1 =1 ;break;case 3:year1 ++;if(year1 ==100)year1 =0;break; } while(!key2)display(year1 ,mon1 ,day1);if(temp2==2) { TR0=1;switch(templ)case 1:sec2++;if(sec2==60)sec2=0;break;case 2:min2++;if(min2==60)min2=0;break;case 3:hour2++;if(hour2==24)hour2=0;break; }while(!key2)display(hour2,min2,sec2);if(key3==0){delay(10); if(key3==0){if(temp2==0){ TR0=0;switch(templ){case 1:if(sec1 ==0)sec1 =60;sec1 ~;break;case 2:if(min1 ==0)min1 =60;min1 -;break;case 3:if(hour1 ==0)hour1 =24;hour1 -;break; } while(!key3)display(hour1 ,min1 ,sec1);if(temp2==1){ TR0=1；switch(templ){case 1:if(day1==1 )day1=31 ;day1-;break;case 2:if(mon1==1 )mon1 =13;mon1 ・-;break;case 3:if(year1 ==0)year1 =100;year1 -;break; } while(!key3) display(year1 ,mon1,day1);}if(temp2==2){ TR0=1;switch(templ){case 1:if(sec2==0)sec2=60;sec2-;break;case 2:if(min2==0)min2=60;min2-;break;case 3:if(hour2==0)hour2=24;hour2-;break; } while(!key3)display(hour2,mi n2,sec2);if(key4==0)delay(10); if(key4==O)tempi =0;temp2++; if(temp2==3)temp2=0;while(!key4) switch(temp2){case 0:display(hour1 ,min1 ,sec1);break; case1:display(year1 ,mon1 ,day1 );break;case 2:display(hour2,min2,sec2);break;switch(temp2){case 0:display(hour1 ,min1 ,sec1 );break;case 1:display(year1 ,mon1 ,day1 );break; case2:display(hour2,min2,sec2);break;void alarm(){uint i;if((hour1==hour2&&min1==min2&&(sec1 >=sec2&&sec1 <sec2+30))||(min1==0 &&sec"l <20)) { for(i=0;i<20;i++){bear=~bear;P1=~P1;switch(temp2){case 0:display(hour1,mi,sec1 );break;case 1:display(year1 ,mon1 ,day1);break;case 2:display(hour2,min2,sec2);break;}delay(30);}bear=1;P1=Oxff;void main(){init();while(1){keyscan();{if (key 1 ==0 || key2==0 || key3==0 || key4==O )Bear=0}alarm();void time1()interrupt 1{uint m;m++;if(m==3686){m=0;sec1++;if(sec1 ==60){sec1=0;min1++;if(min1==60){min1=0; hour1++; if(hour1==24)hour1=0;day1++; if(day1==31) {day1=1;mon 1++;if(mon1==13){mon1 =1; year1++; if(year1==100) year1=0;。
单片机c语言电子时钟
#include<reg52.h>typedef unsigned intuint;typedef unsigned char uchar;sbit LED_Bit1 = P2^4;sbit LED_Bit2 = P2^5;sbit LED_Bit3 = P2^6;sbit LED_Bit4 = P2^7;sbit Key0=P3^4;sbit Key1=P3^5;sbit Key2=P3^6;sbit Key3=P3^7;sbit Buzzer=P2^3;int point;intnum=0;int alarm=1;uint count=0;uint second=0;uint min=0;uint hour=6;uint count1=0;uint second1=0;uint year=2011;uint month=1;uint day=1;uint hour1=6;uint min1=0;uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90, 0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};void Delay(uint m){uintx,y;for(x = m;x> 0;x--)for(y = 110;y > 0;y--);}voidLED_DynamicDisplay(uchar Bit1,uchar Bit2,uchar Bit3,uchar Bit4) {LED_Bit1 = 0;LED_Bit2 = 1;LED_Bit4 = 1;if(point==2||point==7||point==9){if(count<50)P0 = table[Bit1]&0x7f;elseP0=table[Bit1];}elseP0=table[Bit1];Delay(1);P0 = 0xFF;LED_Bit1 = 1;LED_Bit2 = 0;LED_Bit3 = 1;LED_Bit4 = 1;if(point>=1&point<=10&point!=5&point!=9&point!=10) P0=table[Bit2]&0x7f;else{if (count<50)P0 = table[Bit2] & 0x7f;elseP0=table[Bit2];}Delay(1);P0 = 0xFF;LED_Bit1 = 1;LED_Bit2 = 1;LED_Bit3 = 0;LED_Bit4 = 1;if(point==3||point==8||point==10){if(count<50)P0 = table[Bit3]&0x7f;elseP0=table[Bit3];}elseP0=table[Bit3];Delay(1);P0 = 0xFF;LED_Bit2 = 1;LED_Bit3 = 1;LED_Bit4 = 0;P0 = table[Bit4];Delay(1);P0 = 0xFF;}voidTimer_Init(void){TMOD=0x11;TH1=(65536-10000)/256;TL1=(65536-10000)%256;TH0=(65536-10000)/256;TL0=(65536-10000)%256;TR0=1;TR1=1;ET1=1;ET0=1;EA=1;}uchar LED=0x00;void timer0(void) interrupt 3 using 1 {count++;TH1=(65536-10000)/256;TL1=(65536-10000)%256;if(Buzzer==0){if(count%50 == 0)LED =~LED;}if(Buzzer==1)LED=0x00;}void timer1(void) interrupt 1 using 1 {if(point==1)count1++;TH0 = (65536 - 10000)/256;TL0 = (65536 - 10000)%256;}{if(Key0 == 0){Delay(5);if(Key0 == 0){//alarm=~alarm; while(!Key0);}}if(Key1 == 0){Delay(5);if(Key1 == 0){second1=0;count1=0;TH0= (65536 - 10000)/256; TL0= (65536 - 10000)%256; while(!Key1);}}if(Key2==0){Delay(5);if(Key2==0){point++;/*if(point==1){ET0=0;}*/if(point==11)point=0;}while(!Key2);}if(Key3==0){Delay(5);if(Key3==0){if(point==0) alarm=~alarm; if(point==9) hour1++;if(point==10) min1++;if(point==2) hour++;if(point==3) min++;if(point==1) ET0=~ET0; if(point==5) year++;if(point==7) month++;if(point==8) day++;while(!Key3); }}}void time() {if(count>=100) {second++; count=0;}if(second>=60) {min++; second=0;}if(min>=60) {hour++;min=0;}if(hour>=24) {hour=0;day++;}if(month<=7&month%2==1||month>=8&month%2==0) {if(day>=32){month++;day=0;}}else if(year%4==0&year%400!=0&month==2){if(day>=30){month++;day=0;}}else if(year%4!=0&month==2){if(day>=29){month++;day=0;}}else{if(day>=31){month++;day=0;}}if(month>=12){year++;month=0;}if(year>=9999)year=0;if(count1>=100){second1++;count1=0;}if(second1>=60){second1=0;}if(hour1>=24)hour1=0;if(min1>=60)min1=0;if(alarm>=2)alarm=0;}int main(){Timer_Init();while(1){P1=~LED;Keyscan();time();if(point==1){time();LED_DynamicDisplay(second1/10,second1%10,count1/10,count1%10); }else if(point==4||point==5){time();LED_DynamicDisplay(year/1000,year/100%10,year/10%10,year%10);}else if(point==6||point==7||point==8){time();LED_DynamicDisplay(month/10,month%10,day/10,day%10);}else if(point==9||point==10)。
基于单片机的LED点阵电子钟 C程序代码
//------------------------------定义头文件#include <reg51.h>//MCS-51单片机//------------------------------定义缩写字符#define uchar unsigned char#define uint unsigned int//------------------------------定义扬声器接口，低电平使能sbit Bell_Out = P1 ^ 5;//扬声器驱动//------------------------------定义DS18B20音sbit DQ = P1 ^ 6;//ds1820data（单总线）//------------------------------定义DS1302时钟接口sbit clock_clk = P3 ^ 5;//ds1302_clk（时钟线）sbit clock_dat = P3 ^ 6;//ds1302_dat（数据线）sbit clock_Rst = P3 ^ 7;//ds1302_Rst（复位线）//-----------------------------定义数据口#define Led_13 P0 //第1、3屏数据口#define Led_24 P2 //第2、4屏数据口#define Led_E P1 //74HC154的BCD列驱动（P1.0~P1.4）sbit Led_EA = P1 ^ 4;//显示列驱动器（74HC154）使能//-----------------------------独立键盘定义sbit Add_Key = P3 ^ 1;//前位加1键sbit Add2_Key = P3 ^ 0;//后位加1键sbit OK_Key = P3 ^ 2;//确定键sbit int_Key = P3 ^ 3;//中断入口//-----------------------------定义累加器A中的各位sbit a0 = ACC ^ 0;sbit a1 = ACC ^ 1;sbit a2 = ACC ^ 2;sbit a3 = ACC ^ 3;sbit a4 = ACC ^ 4;sbit a5 = ACC ^ 5;sbit a6 = ACC ^ 6;sbit a7 = ACC ^ 7;//------------------------------------定义全局变量bit txx = 0;uchar settime;//定义标志位uchar yy,mo,dd,xq,hh,mm,bn;//定义时间映射全局变量（专用寄存器）static uchar timecount = 0;//定义静态软件计数器变量static uchar pp = 0;//定义静态小时更新用数据变量//------------------------------------函数声明(按字母顺序排列）void Beep(void);void Beep_key(void);void Beep_set(void);void clearRAM (void);uchar clock_in(void);void clock_out(uchar dd);void Delay(int num);void DelayM(uint a);void display (void);void display_s (void);void Init_1302(void);void int1 (void);void putin (uchar u);uchar read_clock(uchar ord);void read_clockS(void);void Set_time(unsigned char sel);void setput (uchar k);void Timer0(void);void Timer0_Init(void);void write_clock(uchar ord, uchar dd);uchar DL (uchar);uchar DSS (void);//-----------------------------定义显示缓冲寄存器（32个字节全局变量）uchar Ledplay [35];////-----------------------------定义字符数据表单（二维数组）uchar code no[][10]={//-----------------------------------数字字符表{0x7E,0xFF,0x81,0x81,0xFF,0x7E,0},//0{0x82,0xFF,0xFF,0x80,0}, //1{0xC6,0xE7,0xB1,0x99,0x8F,0x86,0},//2{0x42,0xC3,0x89,0x89,0xFF,0x76,0},//3{0x30,0x28,0xA6,0xFF,0xFF,0xA0,0},//4{0x4F,0xCF,0x89,0x89,0xF9,0x71,0},//5{0x7E,0xFF,0x89,0x8B,0xFB,0x70,0},//6{0x03,0x03,0xF9,0xFF,0x07,0},//7{0x76,0xFF,0x89,0x89,0xFF,0x76,0},//8{0x0E,0xDF,0xD1,0x91,0xFF,0x7E,0},//9//-----------------------------------星期字符表{0x10,0x10,0x10,0x10,0x10,0x10,0x18,0x10,0},//一10{0x40,0x44,0x44,0x44,0x44,0x44,0x44,0x40,0},//二{0x82,0x92,0x92,0x92,0x92,0x92,0x82,0x80,0},//三{0xFE,0xA2,0x9E,0x82,0x9E,0xA2,0xFE,0},//四{0x80,0x89,0xFF,0x89,0x89,0x89,0xF9,0x80,0},//五{0x88,0x68,0x38,0x0E,0x38,0x68,0x88,0},//六{0xFE,0x92,0x92,0x92,0x92,0xFE,0},//日10+6//-----------------------------------特殊字符表{0x6C,0x6C,0},//“:”17{0x18,0x18,0x18,0x18,0},//“-”18{0x06,0x06,0x78,0xFC,0x84,0x84,0x84,0x80,0},//“oC”19{0x02,0x8E,0xFC,0xFC,0x8E,0x02,0},//“Y”（在调时时表示年）20{0x80,0x7E,0x15,0x15,0x95,0xFF,0},//“月”21{0xFE,0x92,0x92,0x92,0x92,0xFE,0}//“日”22};//-----------------------------------开机画面，显示“DYDIY”uchar code dydiy[]={//显示“DYDIY”0x82,0xFE,0xFE,0x82,0xFE,0x7C,0,0x02,0x8E,0xFC,0xFC,0x8E,0x02,0,0x82,0xFE,0xFE,0x82,0xFE,0x7C,0,0x82,0xFE,0xFE,0x82,0,0x02,0x8E,0xFC,0xFC,0x8E,0x02,0,0x99};//---------------------------------------延时函数2uS/次void Delay(int num){for (;num>0;num--);}//---------------------------------------延时函数1MS/次void DelayM(unsigned int a){unsigned char i;while( --a != 0){for(i = 0; i < 125; i++); //一个; 表示空语句,CPU空转。
AT8951单片机带闹钟数字时钟 C语言编程
{
delay(10);
//延时去抖
if(K2==0)
//加键按下
{
if(hour<23) hour++;
else hour=0;
}
while(!K2);
//等待按键释放
}
if(K3==0) {
delay(10); if(K3==0) {
if(hour> 0) hour--; else hour=23; } while(!K3); } } break;
}break; case 1:
{ if(S_flag==1) { a[0]=led[hour/10]; a[1]=led[hour%10]; } else {
a[0]=led[11]; a[1]=led[11]; } a[2]=led[10]; a[3]=led[minute/10]; a[4]=led[minute%10]; a[5]=led[10]; a[6]=led[second/10]; a[7]=led[second%10]; }break; case 2: { a[0]=led[hour/10]; a[1]=led[hour%10]; a[2]=led[10]; if(S_flag==1) { a[3]=led[minute/10]; a[4]=led[minute%10]; } else { a[3]=led[11]; a[4]=led[11]; } a[5]=led[10]; a[6]=led[second/10]; a[7]=led[second%10]; }break; case 3: { if(S_flag==1) { a[0]=led[hour1/10]; a[1]=led[hour1%10]; } else { a[0]=led[11]; a[1]=led[11]; } a[2]=led[10]; a[3]=led[minute1/10]; a[4]=led[minute1%10];
基于51单片机,电子显示时钟带闹钟、整点报时、日期、星期
{ StrTab[1]=second/10; //秒十位
StrTab[0]=second%10; //秒个位
StrTab[2]=10; //间隔符-
StrTab[4]=minute/10; //分十位
StrTab[3]=minute%10; //分个位
StrTab[5]=10; //间隔符-
void display(uchar w[32])
{ unsigned int i,j,c=0;
if(a==0)//正常时间显示
{ for(i=0;i<8;i++) //依次将数组w中八个数取出，并显示
{ P2=weikong_code[i]; //位选
j=w[i]; //取出要显示的数码
P0=tab[j]; //取出段选编码
if(month==13)
{month=1; year++;
if(year==10000)
year=0;}}
week++;//星期走
if(week==8)
week=1;
data1();
week1();
while(second==err);
}
}
/**********************键盘扫描子程序*************************/
{if(dБайду номын сангаасy==30); //闰年29天
{day=1; month++;
if(month==13)
{month=1; year++;
if(year==10000)
year=0;}}}
51单片机c语言电子钟已加入调时闹铃整点报时功能
51 单片机 c 语言电子钟（已加入调时、闹铃、整点报时功能）效果图：程序如下：//51 单片机c 语言电子钟（已加入调时、闹铃、整点报时功能）#include<reg51.h>#include<absacc.h>#define uchar unsigned char #define uint unsigned int /* 七段共阴管显示定义*/ // 此表为LED 的字模,共阴数码管0-9 - uchar code dispcode[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40}; // 段码控制/* 定义并初始化变量*/ uchar seconde=0;// 秒uchar minite=0;// 分uchar hour=12; // 时uchar shi=0;// 闹铃功能uchar fen=0;uchar bjcs;// 报警次数sbit P1_0=P1A0; //second 调整定义sbit P1_仁P1A1;//minite 调整定义sbit P1_2二PM2; //hour 调整定义sbitP1_5=P1A5; //整点报时sbit P1_3=P1A3; //闹铃功能，调整时间sbit P1_6=P1A6; //调整时sbit P1_7=P1A7; //调整分sbit P1_4=P1A4; //关闭闹铃/* 函数声明*/void delay(uint k ); // 延时子程序void time_pro( ); // 时间处理子程序void display( ); // 显示子程序void keyscan( ); // 键盘扫描子程序/*xx 子程序*/void delay (uint k){uchar j;while((k--)!=0){for(j=0;j<125;j++){;}}}/* 时间处理子程序*/void time_pro(void){if(seconde==60){seconde=0; minite++;if(minite==60){minite=0;hour++;if(hour==24){hour=0;}}}}/* 显示子程序*/void display(void){if(P1_3==1){P2=0XFE;PO=dispcode[seco nde%10];/秒个位delay(1);P2=0XFD;P0=dispcode[seco nde/10];〃秒十位delay(1);P2=0XFB;P0=dispcode[10];// 间隔符-delay(1);P2=0XF7;P0=dispcode[mi nite%10];〃分个位delay(1);P2=0XEF;P0=dispcode[minite/10];// 分十位delay(1);P2=0XDF;P0二dispcode[10];〃间隔符-delay(1);P2=0XBF;P0=dispcode[hour%10];〃时个位delay(1);P2=0X7F;P0=dispcode[hour/10];// 时十位delay(1);}}/* 键盘扫描子程序*/void keyscan(void){if(P1_0==0)//秒位的调整{delay (30);if(P1_0==0){seconde++;if(seconde==60){seconde=0;}}delay(250);}if(P1_仁=0)//分位的调整{delay(30);if(P1_1==0){minite++;if(minite==60){minite=0;}}delay(250);}if(P1_2==0)// 时位的调整{delay(30);if(P1_2==0){hour++;if(hour==24){hour=0;}}delay(250);}}/* 整点报警*/void zhengdian (void){if((seconde==0)&(minite==0))〃整点报时{P1_5=0;delay(1000);P1_5=1;}}/* 定时闹钟*/void dingshi(void){if(P1_3==0)〃按住P1_3BU不松，显示闹铃设置界面，分别按P1_6、P1_7设置闹铃时间。
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《单片机技术》课程设计说明书数字电子钟系、部：电气与信息工程学院学生姓名：指导教师：职称专业：班级：完成时间：2013-06-07摘要电子钟在生活中应用非常广泛，而一种简单方便的数字电子钟则更能受到人们的欢迎。
所以设计一个简易数字电子钟很有必要。
本电子钟采用ATMEL公司的AT89S52单片机为核心，使用12MHz 晶振与单片机AT89S52 相连接,通过软件编程的方法实现以24小时为一个周期，同时8位7段LED数码管(两个四位一体数码管)显示小时、分钟和秒的要求,并在计时过程中具有定时功能，当时间到达提前定好的时间进行蜂鸣报时。
该电子钟设有四个按键KEY1、KEY2、KEY3、KEY4和KEU5键,进行相应的操作就可实现校时、定时、复位功能。
具有时间显示、整点报时、校正等功能。
走时准确、显示直观、运行稳定等优点。
具有极高的推广应用价值。
关键词电子钟；AT89S52；硬件设计；软件设计ABSTRACTClock is widely used in life, and a simple digital clock is more welcomed by people. So to design a simple digital electronic clock is necessary.The system use a single chip AT89S52 of ATMEL’s as its core to control The crystal oscillator clock,using of E-12MHZ is connected with the microcontroller AT89S52, through the software programming method to achieve a 24-hour cycle, and eight 7-segment LED digital tube (two four in one digital tube) displays hours, minutes and seconds requirements, and in the time course of a timing function, when the time arrived ahead of scheduled time to buzz a good timekeeping. The clock has four buttons KEY1, KEY2, KEY3,KEY4 and KEY5 key, and make the appropriate action can be achieved when the school, timing, reset. With a time display, alarm clock settings, timer function, corrective action. Accurate travel time, display and intuitive, precision, stability, and so on. With a high application value.Key words Electronic clock;；AT89S52；Hardware Design；Software Design目录1设计课题任务、功能要求说明及方案介绍 (1)1.1设计课题任务 (1)1.2功能要求说明 (1)1.3设计总体方案介绍及原理说明 (1)2设计课题硬件系统的设计 (2)2.1设计课题硬件系统各模块功能简要介绍 (2)2.2设计课题电路原理图、PCB图、元器件布局图 (2)2.3设计课题元器件清单 (5)3设计课题软件系统的设计 (6)3.1设计课题使用单片机资源的情况 (6)3.2设计课题软件系统各模块功能简要介绍 (6)3.3设计课题软件系统程序流程框图 (6)3.4设计课题软件系统程序清单 (10)4设计结论、仿真结果、误差分析、教学建议 (21)4.1设计课题的设计结论及使用说明 (21)4.2设计课题的仿真结果 (21)4.3设计课题的误差分析 (22)4.4设计体会 (22)4.5教学建议 (22)结束语 (23)参考文献 (24)致谢 (25)附录 (26)1 设计课题任务、功能要求说明及方案介绍1.1 设计课题任务设计一个具有特定功能的电子钟。
具有时间显示，并有时间设定，时间调整功能。
1.2 功能要求说明设计一个具有特定功能的电子钟。
该电子钟上电或按键复位后能自动显示系统提示符“d.1004-22”，进入时钟准备状态；第一次按电子钟启动/调整键，电子钟从12时0分0秒开始运行，进入时钟运行状态；按电子钟KEY1键，则电子钟进入时钟调整状态，此时可利用各调整键调整时间，调整结束后可按KEY1键再次进入时钟运行状态。
1.3 设计课题总体方案介绍及工作原理说明本电子钟主要由单片机、键盘、显示接口电路和复位电路构成，设计课题的总体方案如图1所示：图1-1 总体设计方案图本电子钟的所有的软件、参数均存放在AT89S52的Flash ROM和内部RAM中，减少了芯片的使用数量简化了整体电路也降低了整机的工作电流。
键盘采用动态扫描方式。
利用单片机定时器及计数器产生定时效果通过编程形成数字钟效果，再利用数码管动态扫描显示单片机内部处理的数据，同时通过端口读入当前外部控制状态来改变程序的不同状态，实现不同功能。
2 设计课题硬件系统的设计2.1设计课题硬件系统各模块功能简要介绍本设计的硬件系统主要采用以下基本模块来实现，单片机最小系统模块，输入模块、输出模块、电源模块。
（1）单片机最小系统模块：包括低功耗、高性能CMOS8位微控制器AT89S52；复位电路；晶振电路。
本本模块AT89S52系统控制核心，单片机系统复位由复位电路完成，单片机内部有一个高增益、反相放大器，其输入端为芯片引脚XTAL1，其输出端位位引脚XTAL2。
通过这两个引脚在芯片外并接石英晶体振荡器和两只电容。
这样就构成一个稳定的自激振荡器。
（2）输入模块：本模块共用到了4个按键，1个电源开关，一个复位键，单片机运行期间，利用按键完成复位操作。
3个按键独立式键盘，KEY1键控制电子钟的启动，KEY2键为加1键，KEY3键为减1键，KEY1键第三次控制电子钟的调整状态。
且KEY1、KEY2、KEY3、任一键都独自连一个I/O（P1.0、P1.1、P1.2、P1.3）口线，说明它们可以独立实现相应的电子钟功能。
（3）输出模块：本次设计显示为8位，采用两个四位一体数码管（共阳极）作为显示窗口，既可以节约成本又能简化电路。
数码管用8个PNP三极管驱动。
（4）电源模块：现在市面上销售的编程器有很多都是由PC机的USB口直接供电为了降低本设计的成本及节省设计时间，没有另外设计编程器，而直接购买了市场上的USB供电及下载器。
2.2设计课题电路原理图、PCB图、元器件布局图图2-1 电路原理图总设计原理图见附录A原理总设计图见附录附录BPCB图见附录C2.3 设计课题元器件清单表2-1 设计所用元器件清单3 设计课题软件系统的设计3.1 设计课题使用单片机资源的情况设计课题使用单片机资源的情况如下：P0口输出数码管段选信号，P2口输出数码管位选信号；晶振12MHz；调整选择键KEY1：P1.0；通过选择键选择调整位，选中位闪烁；增加键KEY2：P1.1；按一次使选中位加1；减少键KEY3：P1.2；按一次使选中位减1；此数字钟可实现基本的走时和显示时间时、分、秒；时间的调整；闹钟的设定和调整；闹钟的开启和关闭功能，具体如下：（1）实现基本的走时和显示时间的时、分、秒，上电自动显示初始时间12-00-00，且控制闹钟状态的的蓝色led灯为亮的状态。
（2）当第一次按下第一个弹性按键时进入时间的调节状态，此时实现对显示时间的小时调节，按下第二个按键时实现小时的加一调节，按下第三个按键时实现小时的减一调节。
（3）当第二次按下第一个弹性按键时进入显示时间的分钟调节状态，按下第二个按键时实现分钟的加一调节，按下第三个按键时实现分钟的减一调节。
（4）当第三次按下第一个弹性按键时进入闹钟的小时调节状态，按下第二个按键时实现闹钟小时的加一调节，按下第三个按键时实现闹钟小时的减一调节。
（5）当第四次按下第一个弹性按键时进入闹钟的分钟调节状态，按下第二个按键时实现闹钟分钟的加一调节，按下第三个按键时实现闹钟分钟的减一调节。
（6）当第五次按下第一个弹性按键时返回正常的显示时间走时状态。
（7）当同时按下第二和第三个弹性按键时，关闭闹钟，且此时蓝色led灯为灭，及定时时间到蜂鸣器并不响，若再次同时按下第二和第三个弹性按键，则开启闹钟，且此时蓝色led灯为亮，定时时间到蜂鸣器发出滴滴的闹铃声，同时按下第二和第三个弹性按键即可关闭闹铃。
闹铃状态默认为开启。
3.2设计课题软件系统个模块功能简要介绍本设计的软件系统主要采用以下基本模块来实现，主程序、中断服务程序、键盘输入程序模块、数码管及其驱动模块和延时模块。
主程序：主要是用于对输入信号的处理、输出信号的控制和对各个功能程序模块的运用及其控制。
中断服务程序：主要是用于电子钟的准确运行、数据输入过程中的闪烁。
键盘输入程序模块：主要是用于确定按键并得到特定的键码值。
数码管及其驱动模块：主要是用于驱动数码管及利用数码管显示时间。
延时模块：程序中有两种延时子程序，一种是短延时用于判键按下等，一种是长延时。
3.3 设计课题软件系统程序流程框图系统软件采用汇编语言按模块化方式进行设计,然后通过Keil软件开发平台将程序转变成十六进制程序语言，接着使用Proteous 进行仿真，读出显示数据。
主程序流程框图如3-1所示；时间处理子程序流程框图3-2所示；中断服务程序程序如3=3所示；图3-1 主程序流程框图图3-2 时间处理子程序流程框图图3-3 中断子程序3.4 设计课题软件系统程序清单;----------------------------------------------------------------------- ;项目名称：数字电子钟;项目功能：本电子钟实现24小时制，8位数码管显示时分秒，显示格式:12-59-00 通过4只按键来调整时间，调整选择键KEY1：P1.0；通过选择键选择调整位，选中位闪烁，增加键KEY2：P1.1；按一次使选中位加1。
减少键KEY3：P1.2；按一次使选中位减1，bear:P3.1；到了整点和闹钟就会响，如果长按KEY1第一次切换到正常时钟显示，按第二次切换到时的调整，按第三次切换到分的调整，同时led:P1.2就会闪烁，按第四次和第五次分别切换到闹钟的时分的调整，可进行调时、调分快进快减，并停止闪烁。