简单电子钟无时钟芯片

1、/*液晶显示st7920自建字库*/文件名：lcd_12864.c/日期：2012/11/9/版本：00/作者：jlm/程序参数说明:/晶振：11.0592m/功能：/*/#include <reg52.h>#define uchar unsigned char#define uint unsigned int/*定义变量*/#define lcd_data p0uchar flag_1s;ucharflag_50ms;uchar sec,min,hour,week,day,yue;uchar year_h,year_l; /定义年月日 时分秒uchar time_hour,tim

2、e_min,time_sec;uchar key_counter;/模式按键按下次数uchar key_clock_counter;uchar key_mode_num_flag;/*位定义*/sbit lcd_en=p27; /液晶使能sbit lcd_rd=p26; /rd=0为命令；rd=1为数据sbit lcd_rw=p25; /rw=0为读状态；rw=1为写状态sbit lcd_psb=p32; /选择并行或者是串行sbit lcd_rst=p37; /液晶复位sbitkey_mode=p14;/模式按键sbitkey_add=p15;/加数据按键sbitkey_sub=p16;/减

3、数据按键sbitkey_clock=p17;/向上调试按键/sbitkey_down=p18;/向下调试按键uchar code num=0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x00,0x2d;/密码数字uchar code hanzi_3=0xc1,0xfa,0xc4,0xea,0xb4,0xf3,0xbc,0xaa;/龙年大吉uchar code hanzi_4=0xc4,0xea,0xd4,0xc2,0xc8,0xd5,0xca,0xb1,0xb7,0xd6,0xc3,0xeb,0xa1,0xaa;/年月日 时分秒 -/*函

4、数声明*/void delay_us(uint us);void delay_ms(uint ms);void time_page0(void);void scan_key(void);void scan_key_add(void);void scan_key_sub(void);void inint_dat(void);void time_0();void time_page0(void);void time_page1(void);void clock_page2(void);/*判忙程序*/原函数：void read_lcdbus(void)/功能：判断液晶是否在传输数据 /时间：/入口

5、参数：/出口参数：/*/void read_lcdbus(void)lcd_data=0x00;/先清空数据lcd_rd=0;/选择命令lcd_rw=1;lcd_en=0; /写 while(lcd_data&0x80); /判断液晶工作lcd_en=1; /开使能delay_us(10);lcd_en=0; /关使能；/*写指令*/原函数：void write_comd(uchar value)/功能：写指令/时间：/入口参数：/出口参数：/*/void write_comd(uchar value)read_lcdbus();/读忙标志lcd_rd=0;/选择指令lcd_rw=0;

6、/选择写方式delay_us(10); lcd_data=value; /写入value指令值lcd_en=1;/使能位置一delay_us(1); lcd_en=0;/*写数据*/原函数：void write_lcddata(uchar d_value)/功能：写指令/时间：/入口参数：/出口参数：/*/void write_lcddata(uchar d_value)read_lcdbus();/读忙标志lcd_rd=1;/选择数据lcd_rw=0;/选择写方式delay_us(10); lcd_data=d_value; /写入value指令值lcd_en=1;/使能位置一delay_u

7、s(1);lcd_en=0;/*读ram数据*/原函数：uchar read_lcddata(void)/功能：写指令/时间：/入口参数：/出口参数：/*/uchar read_lcddata()/ /*初始化lcd*/原函数：void init_lcd(void)/功能：写指令/时间：/入口参数：/出口参数：/*/void init_lcd(void)delay_ms(10);lcd_psb=1; /选择并行口lcd_rst=0;/复位delay_us(1);lcd_rst=1;/复位开write_comd(0x30);/功能字控制delay_us(10);write_comd(0x30);

8、delay_us(10);write_comd(0x02);/地址归为delay_us(10);write_comd(0x0c);/开显示与游标delay_us(10);write_comd(0x01); /清显示delay_us(100);write_comd(0x80);/设置ddram地址起始地址/*清零lcd*/原函数：void clearlcd(void)/功能：清屏lcd/时间：/入口参数：/出口参数：/*/void clearlcd(void)/*显示无字库汉字*/原函数：void write_lcdhz(void)/功能：写指令/时间：/入口参数：x 数组suxcol; xad

9、dr=显示的地址/出口参数：/*/*显示字库汉字*/原函数：/功能：/时间：/入口参数：定义形参数组uchar s，显示地址xaddr，数组指针n/出口参数：/*/*显示数字或者字符单个字节*/显示单个字符/*void writelcd_displaybits(uchar s,uchar xaddr,uchar n)write_comd(xaddr); /输入显示地址write_lcddata(*(s+n); /*(s+n)=sn;delay_us(10); */显示双个字符void writelcd_display_2bits(uchar s,uchar xaddr,uchar n1,uch

10、ar n2)write_comd(xaddr); /输入显示地址write_lcddata(*(s+n1); /*(s+n)=sn;delay_us(500);write_lcddata(*(s+n2); /*(s+n)=sn;delay_us(500);/*显示汉字2个字节*/显示单个汉字void lcd_display_hz(uchar s,uchar xaddr,uchar n)uchar i; write_comd(xaddr); for(i=0;i<n;i+) s+; s+; write_lcddata(*(s+); /指向数组的s write_lcddata(*s); /指向

11、数组的s+1delay_us(500); /显示单个汉字 /*void lcd_displayhanzi(uchar s,uchar xaddr,uchar n1)uchar i; write_comd(xaddr); for(i=0;i<n1;i+) write_lcddata(*(s+); /指向数组的swrite_lcddata(*(s+); /指向数组s */*按键模式扫描*/原函数：void scan_key_mode(void)/功能：按键模式扫描/时间：/入口参数：key_mode=p11;/出口参数：/*/void scan_key(void)if(key_mode=0)

12、 /模式按键扫描 delay_us(2500);while(!key_mode);delay_us(2500);tr0=0;key_counter+;time_page0();/调用调整时间界while(1)if(key_mode=0)delay_us(2500); while(!key_mode);delay_us(2500);key_counter+;time_page0();/调用调整时间界switch(key_counter)case 1:writelcd_display_2bits(num,0x91,year_h/10,year_h%10);/20write_comd(0x10);

13、/光标返回delay_ms(100);scan_key_add();scan_key_sub();break;case 2:writelcd_display_2bits(num,0x92,year_l/10,year_l%10);/20write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub();break;case 3:writelcd_display_2bits(num,0x94,yue/10,yue%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub

14、();break;/月份case 4:writelcd_display_2bits(num,0x96,day/10,day%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub();break;/日case 5:writelcd_display_2bits(num,0x89,hour/10,hour%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub();break;/时case 6:writelcd_display_2bits(num,

15、0x8b,min/10,min%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub();break;/分case 7:writelcd_display_2bits(num,0x8d,sec/10,sec%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub();break;/秒case 8:key_counter=0;write_comd(0x0c);/关闭游标显示反白write_comd(0x01); /清lcd显示tr0=1;/启动定

16、时器 break; if(key_counter=0)write_comd(0x0c);/关闭游标显示反白write_comd(0x01);/清lcdflag_1s=0;break;flag_1s=0; /*加按键扫描*/原函数：void scan_key_add(void)/功能：加按键扫描/时间：/入口参数：key_add=p1.4/出口参数：/*/void scan_key_add(void) if(key_add=0)delay_us(1500);while(!key_add);delay_us(1500);if(key_counter=1)/判断是不是年修改year_h+;if(ye

17、ar_h=99)year_h=0;if(key_counter=2)/判断是不是年修改year_l+;if(year_l=99)year_l=0;if(key_counter=3)/判断是不是月修改yue+;if(yue=13)yue=0;if(key_counter=4)/判断是不是日修改day+;if(day=32)day=1;if(key_counter=5)/判断是不是时修改hour+;if(hour=25)hour=0;if(key_counter=6)/判断是不是分修改min+;if(min=60)min=0;if(key_counter=7)/判断是不是秒修改sec+;if(se

18、c=60)sec=0; /*减按键扫描*/原函数：void scan_key_sub(void)/功能：减按键扫描/时间：/入口参数：/出口参数：/*/void scan_key_sub(void) if(key_sub=0)delay_us(2500);while(!key_sub);if(key_counter=1)/判断是不是年修改if(year_h>0)year_h-;if(year_h=0)year_h=99;if(key_counter=2)/判断是不是年修改if(year_l>0)year_l-;if(year_l=0)year_l=99;if(key_counter

19、=3)/判断是不是月修改if(yue>0)yue-;if(yue=0)yue=12;if(key_counter=4)/判断是不是日修改if(day>0)day-; if(day=0) day=31;if(key_counter=5)/判断是不是时修改if(hour>0)hour-;if(hour=0)hour=24;if(key_counter=6)/判断是不是分修改if(min>0)min-;if(min=0)min=59;if(key_counter=7)/判断是不是秒修改if(sec>0)sec-;if(sec=0)sec=59; /*初始时钟页面*/原函

20、数：void time_page0(void)/功能：时钟显示页/时间：/入口参数：/出口参数：/*/void time_page()write_comd(0x01); /清lcd显示delay_us(100);lcd_display_hz(hanzi_3,0x82,0);/龙lcd_display_hz(hanzi_3,0x83,1);/年lcd_display_hz(hanzi_3,0x84,2);/大lcd_display_hz(hanzi_3,0x85,3);/吉write_comd(0x01); /清lcd显示write_comd(0x0c); /关闭游标显示反白delay_us(1

21、00);/*可调时钟页面*/原函数：void time_page0(void)/功能：时钟显示页/时间：/入口参数：/出口参数：/*/void time_page0(void)write_comd(0x01); /清lcd显示delay_us(100);writelcd_display_2bits(num,0x91,year_h/10,year_h%10);/20writelcd_display_2bits(num,0x92,year_l/10,year_l%10);/20 writelcd_display_2bits(num,0x93,11,11);/-writelcd_display_2b

22、its(num,0x94,yue/10,yue%10);/12 writelcd_display_2bits(num,0x95,11,11);/-writelcd_display_2bits(num,0x96,day/10,day%10);/12writelcd_display_2bits(num,0x89,hour/10,hour%10);/12lcd_display_hz(hanzi_4,0x8a,3);/时writelcd_display_2bits(num,0x8b,min/10,min%10);/00lcd_display_hz(hanzi_4,0x8c,4);/分writelcd_

23、display_2bits(num,0x8d,sec/10,sec%10);/00lcd_display_hz(hanzi_4,0x8e,5);/秒write_comd(0x0f);/游标显示write_comd(0x80);/ /*时钟显示页面*/原函数：void time_page1(void)/功能：时钟显示页/时间：/入口参数：/出口参数：/*/void time_page1(void)lcd_display_hz(hanzi_3,0x9a,0);/龙lcd_display_hz(hanzi_3,0x9b,1);/年lcd_display_hz(hanzi_3,0x9c,2);/大lc

24、d_display_hz(hanzi_3,0x9d,3);/吉writelcd_display_2bits(num,0x91,year_h/10,year_h%10);/20writelcd_display_2bits(num,0x92,year_l/10,year_l%10);/20 writelcd_display_2bits(num,0x93,11,11);/-writelcd_display_2bits(num,0x94,yue/10,yue%10);/12 writelcd_display_2bits(num,0x95,11,11);/-writelcd_display_2bits(

25、num,0x96,day/10,day%10);/12writelcd_display_2bits(num,0x89,hour/10,hour%10);/12lcd_display_hz(hanzi_4,0x8a,3);/时writelcd_display_2bits(num,0x8b,min/10,min%10);/00lcd_display_hz(hanzi_4,0x8c,4);/分writelcd_display_2bits(num,0x8d,sec/10,sec%10);/00lcd_display_hz(hanzi_4,0x8e,5);/秒write_comd(0x0c);/关闭游标

26、显示反白 delay_us(10); /*闹钟调整页面*/原函数：void clock_page2(void)/功能：时钟显示页/时间：/入口参数：/出口参数：/*/void clock_page2(void)write_comd(0x01); /清lcd显示delay_us(100);writelcd_display_2bits(num,0x89,hour/10,hour%10);/12lcd_display_hz(hanzi_4,0x8a,3);/时writelcd_display_2bits(num,0x8b,min/10,min%10);/00lcd_display_hz(hanzi_

27、4,0x8c,4);/分writelcd_display_2bits(num,0x8d,sec/10,sec%10);/00lcd_display_hz(hanzi_4,0x8e,5);/秒write_comd(0x0f);/游标显示write_comd(0x80);/*时间程序*/原函数：void auto_time(void)/功能：时间自动调整/时间：/入口参数：/出口参数：/*/void auto_time(void)if(flag_1s)flag_1s=0;sec+;if(sec>59)sec=0;min+;if(min>59)min=0;hour+;if(hour>

28、;23)hour=0;week+;if(week=7)week=1;day+;/2013年有7个月为31天=1.3.5.7.8.10.12if(yue=1|yue=3|yue=5|yue=7|yue=8|yue=10|yue=12)&&(day=31)yue+; /月份加一判断是否为大月或者为小月day=1;/如果其中一个月到，并且天数达到31天就返回重新开始计数/4个月是30天=4,6,9,11else if(yue=4|yue=6|yue=9|yue=11)&&(day=30)yue+;day=1;/1个月是28天=2else if(yue=2)&&

29、amp;(day=28)yue+;day=1;/判断年数if(yue=12) /等于12个月了就重新开始从第一个月开始yue=1;year_l+;if(year_l=99)year_l=12;year_h+;if(year_h=99)year_h=20; /*定时闹钟程序*/原函数：void time_clock(void)/功能：闹钟程序/时间：/入口参数：/出口参数：/*/void time_clock(void)if(key_clock=0)delay_us(2500);while(!key_clock);delay_us(2500);key_clock_counter+;clock_p

30、age2();while(1)if(key_clock=0)delay_us(2500);while(!key_clock);delay_us(2500);clock_page2();switch(key_clock_counter)case 1: writelcd_display_2bits(num,0x89,time_hour/10,time_hour%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub(); break;case 2:writelcd_display_2bits(num,0x8b,time_min/10,time_min%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub();break;case 3:writelcd_display_2bits(num,0x8d,time_sec/10,time_sec%10);/12write_comd(0x10);delay_ms(100);scan_key_add();scan_key_sub();break;/秒case 4:key_clock_counter=0;write_comd(0x0c);/关闭