基于c51功能最全的电子钟程序lcd1602.docx

1、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 # include lcd16024.hsbit key1 = P20; /调整sbit key2 = P21; /加1sbit key3 = P22; /减1sbit speaker = P23; /蜂鸣器sbit key4 = P24; /闹钟设计bit cal_year =

2、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 timestr

3、1=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;

4、/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 timestr7 = sec%10+0; timestr6 = sec/10+0; timestr4 = min%10+0; timestr3 = min/10+0; timestr1 = hour%10+0; times

5、tr0 = hour/10+0;/年月日 daystr9 = day%10+0; daystr8 = day/10+0; daystr6 = month%10+0; daystr5 = month/10+0; daystr3 = year%10+0; daystr2 = year/10%10+0; daystr1 = year/100%10+0; daystr0 = year/1000+0;/星期 WeekData = week+0;/* 闹钟更新LCD时间分离读取 */void TimeChange1()/时分秒 timestr17 = sec1%10+0; timestr16 = sec1

6、/10+0; timestr14 = min1%10+0; timestr13 = min1/10+0; timestr11 = hour1%10+0; timestr10 = hour1/10+0;/年月日 daystr19 = day1%10+0; daystr18 = day1/10+0; daystr16 = month1%10+0; daystr15 = month1/10+0; daystr13 = year1%10+0; daystr12 = year1/10%10+0; daystr11 = year1/100%10+0; daystr10 = year1/1000+0;/星期

7、 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10ms TL0 = 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

8、_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) timestr9 = Y; else timestr9 = 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); swi