单片机==LCD1602之简易万年历

淩亂°似流年 2022-06-15 22:55 248阅读 0赞

LCD1602可以简单的显示一些字母数字，但是对于汉字来说，显示起来还是不太好，不怎么好显示，毕竟像素比较低，这次用LCD1602显示了一下简易的万年历。

效果图：

![SouthEast][]

程序：

/*******lcd.h*******/
    #ifndef _LCD_H_
    #define _LCD_H_
    
    #include <reg51.h>
    #include <intrins.h>
    
    sbit RS = P2^6;
    sbit RW = P2^5;
    sbit EN = P2^7;
    
    #define RS_CLR  RS = 0
    #define RS_SET  RS = 1
    #define RW_CLR  RW = 0
    #define RW_SET  RW = 1
    #define EN_CLR  EN = 0
    #define EN_SET  EN = 1
    #define dataport  P0
    #define uchar unsigned char
    
    extern void DelayUs2x(uchar t);
    extern void DelayMs(uchar t);
    extern void LCD_Write_COM(uchar com);				//写指令
    extern void LCD_Write_Data(uchar Data);
    extern void LCD_Clear();
    extern void LCD_Write_String(uchar x, uchar y, uchar* s);
    extern void LCD_Write_Char(uchar x, uchar y, uchar c);
    extern void LCD_Init();	 
    
    #endif

/*****lcd.c********/
    #include "lcd.h"
    
    void DelayUs2x(uchar t)
    {
    	while(--t);
    }
    
    
    
    void DelayMs(uchar t)
    {
    	while(t--)
    	{
    		DelayUs2x(245);
    		DelayUs2x(245);
    	}
    }
    
    
    
    
    /* bit LCD_Check_busy(void)
    {
    	dataport = 0xff;
    	RS_CLR;
    	RW_SET;
    	EN_CLR;
    	_nop_();
    	EN_SET;
    	return (bit)(dataport&0x80);
    } */
    
    
    
    //写指令
    
    void LCD_Write_COM(uchar com)
    {
    	DelayMs(5);
    	RS_CLR;
    	RW_CLR;
    	EN_SET;
    	dataport = com;
    	_nop_();
    	EN_CLR;
    }
    
    
    
    //写数据
    void LCD_Write_Data(uchar Data)
    {
    	DelayMs(5);
    	RS_SET;
    	RW_CLR;
    	EN_SET;
    	dataport = Data;
    	_nop_();
    	EN_CLR;
    }
    
    
    
    //清屏
    void LCD_Clear()
    {
    	LCD_Write_COM(0x01);
    	DelayMs(5);
    }
    
    
    
    //输入字符，x为横坐标，y为纵坐标
    void LCD_Write_String(uchar x, uchar y, uchar* s)
    {
    	if(y == 0)
    	{
    		LCD_Write_COM(0x80+x);
    	}
    	else
    	{
    		LCD_Write_COM(0xC0+x);
    	}
    	while(*s)
    	{
    		LCD_Write_Data(*s);
    		s++;
    	}
    }
    
    
    
    //输入字符，x为横坐标，y为纵坐标
    void LCD_Write_Char(uchar x, uchar y, uchar c)
    {
    	if(y == 0)
    	{
    		LCD_Write_COM(0x80+x);
    	}
    	else
    	{
    		LCD_Write_COM(0xC0+x);
    	}
    	LCD_Write_Data(c);
    }
    
    
    
    void LCD_Init()	 					//LCD初始化子程序
    {
    	EN_CLR;
     	LCD_Write_COM(0x38);  			//设置显示模式
    	DelayMs(5);
     	LCD_Write_COM(0x38);  			//设置显示模式
    	DelayMs(5);
     	LCD_Write_COM(0x38);  			//设置显示模式
    	DelayMs(5);
     	LCD_Write_COM(0x38);  			//设置显示模式
    	DelayMs(5);
    	LCD_Write_COM(0x0c);  			//开显示不显示光标，光标闪烁
    	LCD_Write_COM(0x06);  			//写一个指针加一
    	LCD_Write_COM(0x01);  			//清屏
    	LCD_Write_COM(0x80);  			//设置数据指针起点
    }

/*****main.c*******/
    #include "lcd.h"
    
    uchar hour = 21, min = 43, sec = 0, count, date = 28, monse = 4;
    unsigned int year = 2017;
    
    void init_T0()
    {
    	EA = 1;
    	ET0 = 1;
    	TMOD = 0X01;
    	TH0 = 0X3C;
    	TL0 = 0XB0;
    	TR0 = 1;
    }
    
    void main()
    {
    	init_T0();
    	LCD_Init();
    	LCD_Clear();
    	while(1)
    	{		
    		LCD_Write_String(0, 0, "Date:");
    		LCD_Write_Char(5, 0, year/1000+48);
    		LCD_Write_Char(6, 0, year%1000/100+48);
    		LCD_Write_Char(7, 0, year%100/10+48);
    		LCD_Write_Char(8, 0, year%10+48);
    		LCD_Write_Char(9, 0, '-');		
    		LCD_Write_Char(10, 0, monse/10+48);
    		LCD_Write_Char(11, 0, monse%10+48);
    		LCD_Write_Char(12, 0, '-');		
    		LCD_Write_Char(13, 0, date/10+48);
    		LCD_Write_Char(14, 0, date%10+48);					
    		
    		LCD_Write_String(0, 1, "Time:");
    		LCD_Write_Char(5, 1, hour/10+48);
    		LCD_Write_Char(6, 1, hour%10+48);
    		LCD_Write_Char(7, 1, '-');
    		LCD_Write_Char(8, 1, min/10+48);
    		LCD_Write_Char(9, 1, min%10+48);
    		LCD_Write_Char(0xa, 1, '-');
    		LCD_Write_Char(0xb, 1, sec/10+48);
    		LCD_Write_Char(0xc, 1, sec%10+48);
    	}
    }
    
    void inter()	interrupt 1
    {
    	TH0 = 0X3C;
    	TL0 = 0XB0;
    	count++;
    	if(count >= 20)
    	{
    		count = 0;
    		sec++;
    	}
    	if(sec >= 60)
    	{
    		sec = 0;
    		min++;
    	}
    	if(min >= 60)
    	{
    		min = 0;
    		hour++;
    	}
    	if(hour >= 24)
    	{
    		hour = 0;
    		date++;
    	}
    	if(date > 31)
    	{
    		date = 0;
    		monse++;
    	}
    	if(monse > 13)
    	{
    		monse = 0;
    		year++;
    	}
    	
    }

[SouthEast]: /images/20220616/4c3dea3b2b0e45a18680b26962d73ad4.png