基于51单片机与DS1302时钟芯片和LCD1602液晶显示的数字时钟

pro teus模拟图：KEIL C计划：#include# include“LCD 1602 . h”# include“ds 1302 . h”Void Delay1ms(unsigned int count)Unsigned int i，j；for(I=0)；I/port definitions * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *sbit LcdRs=P2 0；sbit LcdRw=P2 1；sbit LcdEn=P2 2；Sfr DBPort=0x80/P0=0x80，P1=0x90，p2=0xa0，P3=0xb 0。数据端口/内部大气函数* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *Unsigned char LCD_Wait(void)LcdRs=0；LcdRw=1；_ nop _()；LC den=1；_ nop _()；/while(dbport0x 80)；在模拟为/Proteus时遮罩此语句，将在调用GotoXY()时进入死循环。/写入控制词时，模块可能未返回完整的写入命令(DBPort0x80=0x80)/当存在物理硬件时打开此门LC den=0；Return DBPort/将命令或数据写入液晶屏* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *#define LCD_COMMAND0 /Command#define LCD_DATA1 /Data# define LCD _ CLEAR _ screen0x 01/CLEAR屏幕#define LCD_HOMING0x02 /光标返回原点Void LCD _ write (bit style，unsigned char input)LC den=0；LcdRs=styleLcdRw=0；_ nop _()；DBPort=input_ nop _()；/注意顺序LC den=1；_ nop _()；/注意顺序LC den=0；_ nop _()；LCD _ Wait()；/设定显示模式* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *#define LCD_SHOW0x04 /开显示#define LCD_HIDE0x00 /关闭显示器#define LCD_CURSOR0x02 /显示游标#define LCD_NO_CURSOR0x00 /无光标#define LCD_FLASH0x01 /光标闪烁#define LCD_NO_FLASH0x00 /光标不闪烁void LCD _ set display(unsigned char display mode)Lcd _ write (LCD _ command，0x08 |显示模式)；/设定输入模式* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *#define LCD_AC_UP0x02# define LCD _ AC _ down0x 00/default#define LCD_MOVE0x01 /屏幕可平移# define LCD _ no _ move0x 00/defaultVoid LCD _ set输入模式(unsigned char input mode，unsigned char输入模式)Lcd _ write (LCD _ command，0x 04 | input mode)；/移动光标或屏幕* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *。/*#define LCD_CURSOR0x02#define液晶屏_SCREEN0x08#define LCD_LEFT0x00#define LCD_RIGHT0x04void LCD _ move(unsigned char object，unsigned char direction)If(object=LCD_CURSOR)Lcd _ write (LCD _ command，0x 10 | direction)；If(object=LCD_SCREEN)Lcd _ write (LCD _ command，0x 18 | direction)；*/初始化液晶屏* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *Void LCD_Initial()LC den=0；LCD_Write(LCD_COMMAND，0x 38)；/8位数据端口，2行显示，5*7光栅LCD_Write(LCD_COMMAND，0x 38)；LCD _ set display(LCD _ show | LCD _ no _ cursor)；/打开不带光标的显示Lcd _ write (LCD _ command，LCD _ clear _ screen)；/清除屏幕LCD _ setinput(LCD _ AC _ up | LCD _ no _ move)；/AC增量，屏幕不移动/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *Void goto (unsigned charx，unsigned chary)If(y=0)LCD_Write(LCD_COMMAND，0x 80 | x)；If(y=1)Lcd _ write (LCD _ command，0x 80 |(x-0x 40)；Void Print(unsigned char *str)While(*str！=0)LCD_Write(LCD_DATA，* str)；Str/*void LCD _ load char(unsigned char user8，unsigned charplace)unsigned char I；Lcd _ write (LCD _ command，0x 40 |(place * 8)；for(I=0)；i8；I)LCD_Write(LCD_DATA，userI)；*/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *#endif# ifndef _ real _ timer _ ds 1302 _ 2003 _ 7 _ 21 _# define _ real _ timer _ ds 1302 _ 2003 _ 7 _ 21 _sbit ds 1302 _ CLK=P1 6；/实时时钟线销sbit ds 1302 _ IO=P1 7；/即时时钟资料缆线接脚sbit ds 1302 _ RST=P1 5；/实时时钟复位线销Sbit ACC0=ACC 0Sbit ACC7=ACC 7Typedef struct _SYSTEMTIME_Unsigned char SecondUnsigned char MinuteUnsigned char HourUnsigned char WeekUnsigned char DayUnsigned char MonthUnsigned char Yearunsigned char DateString9；unsigned char TimeString9； SYSTEMTIME/定义的时间类型#define AM(X)X#define PM(X)(X 12) /切换到24小时制#define DS1302_SECOND0x80#define DS1302_MINUTE0x82#define DS1302_HOUR0x84#define DS1302_WEEK0x8A#define DS1302_DAY0x86#define DS1302_MONTH0x88#define DS1302_YEAR0x8C# define ds 1302 _ RAM(x)(0xc 0(x)* 2)/ds 1302 _ RAM计算地址的宏将实时时钟写入void ds 1302 input byte(unsigned chard)/1字节(内部函数)unsigned char I；ACC=d；for(I=8)；i0；I-)DS1302 _ IO=ACC0/与编辑中的RRC相对应ds 1302 _ CLK=1；ds 1302 _ CLK=0；ACC=ACC 1；unsigned char ds 1302 output byte(void)/实时时钟读取1字节(内部函数)unsigned char I；for(I=8)；i0；I-)ACC=ACC 1；/与编辑中的RRC相对应ACC7=DS1302 _ IOds 1302 _ CLK=1；ds 1302 _ CLK=0；return(ACC)；void write 1302(unsigned char UC addr，unsigned char ucda)/UC addr 3360 ds 1302地址，ucData:要写入的数据ds 1302 _ RST=0；ds 1302 _ CLK=0；ds 1302 _ RST=1；ds 1302 inputbyte(ucad dr)；/地址，命令ds 1302 inputbyte(ucDa)；/1Byte写入数据ds 1302 _ CLK=1；ds 1302 _ RST=0；从unsigned char read 1302(unsigned char UC addr)/ds 1302地址读取数据Unsigned char ucDatads 1302 _ RST=0；ds 1302 _ CLK=0；ds 1302 _ RST=1；ds 1302 inputbyte(ucad dr |0x 01)；/地址，命令UC data=ds 1302 output byte()；/1Byte读取数据ds 1302 _ CLK=1；ds 1302 _ RST=0；R