104-1602ʦ

104-1602液晶显示DS1302时钟 含定时

/*-----------------------------------------------
  名称：LCD1602
  论坛：www.proteus.net.cn
  编写：华科教育
  日期：2010.5
  修改：无
  内容：
  引脚定义如下：1-VSS 2-VDD 3-V0 4-RS 5-R/W 6-E 7-14 DB0-DB7 15-BLA 16-BLK
------------------------------------------------*/
#include "1602.h"
#include "delay.h"

sbit RS = P2^6;   //定义端口 
sbit RW = P2^5;
sbit EN = P2^4;

#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 P1

/*------------------------------------------------
              判忙函数
------------------------------------------------*/
 /*
 bit LCD_Check_Busy(void) 
 { 
 DataPort= 0xFF; 
 RS_CLR; 
 RW_SET; 
 EN_CLR; 
 _nop_(); 
 EN_SET;
 return (bit)(DataPort & 0x80);
 }
*/
/*------------------------------------------------
              写入命令函数
------------------------------------------------*/
 void LCD_Write_Com(unsigned char com) 
 {  
// while(LCD_Check_Busy()); //忙则等待
 RS_CLR; 
 RW_CLR; 
 EN_SET; 
 DataPort= com; 
 _nop_(); 
  ///////////////
 DelayMs(5);
 //////////////////
 EN_CLR;
 }
/*------------------------------------------------
              写入数据函数
------------------------------------------------*/
 void LCD_Write_Data(unsigned char Data) 
 { 
// while(LCD_Check_Busy()); //忙则等待
 RS_SET; 
 RW_CLR; 
 EN_SET; 
 DataPort= Data; 
 _nop_();
  ///////////////
 DelayMs(5);
 //////////////////
 EN_CLR;
 }

/*------------------------------------------------
                清屏函数
------------------------------------------------*/
 void LCD_Clear(void) 
 { 
 LCD_Write_Com(0x01); 
 DelayMs(5);
 }
/*------------------------------------------------
              写入字符串函数
------------------------------------------------*/
 void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s) 
 {     
 if (y == 0) 
 	{     
	 LCD_Write_Com(0x80 + x);     //表示第一行
 	}
 else 
 	{      
 	LCD_Write_Com(0xC0 + x);      //表示第二行
 	}        
 while (*s) 
 	{     
 LCD_Write_Data( *s);     
 s ++;     
 	}
 }
/*------------------------------------------------
              写入字符函数
------------------------------------------------*/
/* void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data) 
 {     
 if (y == 0) 
 	{     
 	LCD_Write_Com(0x80 + x);     
 	}    
 else 
 	{     
 	LCD_Write_Com(0xC0 + x);     
 	}        
 LCD_Write_Data( Data);  
 }*/
/*------------------------------------------------
              初始化函数
------------------------------------------------*/
 void LCD_Init(void) 
 {
   LCD_Write_Com(0x38);    /*显示模式设置*/ 
   DelayMs(5); 
   LCD_Write_Com(0x38); 
   DelayMs(5); 
   LCD_Write_Com(0x38); 
   DelayMs(5); 
   LCD_Write_Com(0x38);  
   LCD_Write_Com(0x08);    /*显示关闭*/ 
   LCD_Write_Com(0x01);    /*显示清屏*/ 
   LCD_Write_Com(0x06);    /*显示光标移动设置*/ 
   DelayMs(5); 
   LCD_Write_Com(0x0C);    /*显示开及光标设置*/
   }