2021年12月27日 | 单片机驱动 DS1302时钟+1602液晶

程序参考C语言代码如下：

#include

#include “LCD1602.h”

#include “DS1302.h”

void Delay1ms(unsigned int count)

{

unsigned int i,j;

for(i=0;ifor(j=0;j<120;j++);

}

main()

{

SYSTEMTIME CurrentTime;

LCD_Initial();

Initial_DS1302();

GotoXY(0,0);

Print(" www.ourhc.cn");

GotoXY(0,1);

Print("Time: ");

while(1)

{

DS1302_GetTime(&CurrentTime);

TimeToStr(&CurrentTime);

GotoXY(6,1);

Print(CurrentTime.TimeString);

Delay1ms(400);

}

}

/**************************************************************************

                THE 1602 CHAR LCD LIB

          COPYRIGHT (c)   2005 BY JJJ.

                    --  ALL RIGHTS RESERVED  --

File Name: LCD.h

Author: Jiang Jian Jun

Created: 2005/4/3

Modified: NO

Revision: 1.0

***************************************************************************/

#ifndef LCD_CHAR_1602_2005_4_9

#define LCD_CHAR_1602_2005_4_9

#include

//Port Definitions**********************************************************

sbit LcdRs = P2^0;

sbit LcdRw = P2^1;

sbit LcdEn = P2^2;

sfr DBPort = 0x80; //P0=0x80,P1=0x90,P2=0xA0,P3=0xB0.数据端口

//内部等待函数**************************************************************************

unsigned char LCD_Wait(void)

{

LcdRs=0;

LcdRw=1; nop();

LcdEn=1; nop();

//while(DBPort&0x80);//在用Proteus仿真时，注意用屏蔽此语句，在调用GotoXY()时，会进入死循环，

//可能在写该控制字时，该模块没有返回写入完备命令，即DBPort&0x80==0x80

//实际硬件时打开此语句

LcdEn=0;

return DBPort;

}

//向LCD写入命令或数据************************************************************

#define LCD_COMMAND 0 // Command

#define LCD_DATA 1 // Data

#define LCD_CLEAR_SCREEN 0x01 // 清屏

#define LCD_HOMING 0x02 // 光标返回原点

void LCD_Write(bit style, unsigned char input)

{

LcdEn=0;

LcdRs=style;

LcdRw=0; nop();

DBPort=input; nop();//注意顺序

LcdEn=1; nop();//注意顺序

LcdEn=0; nop();

LCD_Wait();

}

//设置显示模式************************************************************

#define LCD_SHOW 0x04 //显示开

#define LCD_HIDE 0x00 //显示关

#define LCD_CURSOR 0x02 //显示光标

#define LCD_NO_CURSOR 0x00 //无光标

#define LCD_FLASH 0x01 //光标闪动

#define LCD_NO_FLASH 0x00 //光标不闪动

void LCD_SetDisplay(unsigned char DisplayMode)

{

LCD_Write(LCD_COMMAND, 0x08|DisplayMode);

}

//设置输入模式************************************************************

#define LCD_AC_UP 0x02

#define LCD_AC_DOWN 0x00 // default

#define LCD_MOVE 0x01 // 画面可平移

#define LCD_NO_MOVE 0x00 //default

void LCD_SetInput(unsigned char InputMode)

{

LCD_Write(LCD_COMMAND, 0x04|InputMode);

}

//移动光标或屏幕************************************************************

/*

#define LCD_CURSOR 0x02

#define LCD_SCREEN 0x08

#define LCD_LEFT 0x00

#define LCD_RIGHT 0x04

void LCD_Move(unsigned char object, unsigned char direction)

{

if(objectLCD_CURSOR)

LCD_Write(LCD_COMMAND,0x10|direction);

if(objectLCD_SCREEN)

LCD_Write(LCD_COMMAND,0x18|direction);

}

/

//初始化LCD***********************************************************

void LCD_Initial()

{

LcdEn=0;

LCD_Write(LCD_COMMAND,0x38); //8位数据端口,2行显示,5*7点阵

LCD_Write(LCD_COMMAND,0x38);

LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR); //开启显示, 无光标

LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN); //清屏

LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE); //AC递增, 画面不动

}

//************************************************************************

void GotoXY(unsigned char x, unsigned char y)

{

if(y0)

LCD_Write(LCD_COMMAND,0x80|x);

if(y1)

LCD_Write(LCD_COMMAND,0x80|(x-0x40));

}

void Print(unsigned char str)

{

while(str!=’’)

{

LCD_Write(LCD_DATA,str);

str++;

}

}

/

void LCD_LoadChar(unsigned char user[8], unsigned char place)

{

unsigned char i;

LCD_Write(LCD_COMMAND,0x40|(place8));

for(i=0; i<8; i++)

LCD_Write(LCD_DATA,user[i]);

}

/

//**********************************************************************

#endif