C51-cymometer/Include/lcd1602.h

#ifndef _lcd1602_H
#define _lcd1602_H

#include "public.h"

//LCD1602<30><32><EFBFBD>ݿ<EFBFBD>4λ<34><CEBB>8λ<38><CEBB><EFBFBD>壬<EFBFBD><E5A3AC>Ϊ1<CEAA><31><EFBFBD><EFBFBD>ΪLCD1602<30><32>λ<EFBFBD><CEBB><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮Ϊ8λ
#define LCD1602_4OR8_DATA_INTERFACE	0	//Ĭ<><C4AC>ʹ<EFBFBD><CAB9>8λ<38><CEBB><EFBFBD>ݿ<EFBFBD>LCD1602

//<2F>ܽŶ<DCBD><C5B6><EFBFBD>
sbit LCD1602_RS=P2^6;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>
sbit LCD1602_RW=P2^5;//<2F><>дѡ<D0B4><D1A1>
sbit LCD1602_E=P2^7; //ʹ<><CAB9><EFBFBD>ź<EFBFBD>
#define LCD1602_DATAPORT P0	//<2F>궨<EFBFBD><EAB6A8>LCD1602<30><32><EFBFBD>ݶ˿<DDB6>


//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void lcd1602_init(void);
void lcd1602_clear(void);
void lcd1602_show_string(u8 x,u8 y,u8 *str);

/*******************************************************************************
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>       : lcd1602_write_cmd
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		 : LCD1602д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>       : cmd<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>    	 : <EFBFBD><EFBFBD>
*******************************************************************************/
#if (LCD1602_4OR8_DATA_INTERFACE==0)//8λLCD
void lcd1602_write_cmd(u8 cmd)
{
	LCD1602_RS=0;//ѡ<><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	LCD1602_RW=0;//ѡ<><D1A1>д
	LCD1602_E=0;
	LCD1602_DATAPORT=cmd;//׼<><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	delay_ms(1);
	LCD1602_E=1;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	delay_ms(1);
	LCD1602_E=0;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>	
}
#else	//4λLCD
void lcd1602_write_cmd(u8 cmd)
{
	LCD1602_RS=0;//ѡ<><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	LCD1602_RW=0;//ѡ<><D1A1>д
	LCD1602_E=0;
	LCD1602_DATAPORT=cmd;//׼<><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	delay_ms(1);
	LCD1602_E=1;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	delay_ms(1);
	LCD1602_E=0;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	
	LCD1602_DATAPORT=cmd<<4;//׼<><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	delay_ms(1);
	LCD1602_E=1;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	delay_ms(1);
	LCD1602_E=0;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>	
}
#endif

/*******************************************************************************
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>       : lcd1602_write_data
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		 : LCD1602д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>       : dat<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>    	 : <EFBFBD><EFBFBD>
*******************************************************************************/
#if (LCD1602_4OR8_DATA_INTERFACE==0)//8λLCD
void lcd1602_write_data(u8 dat) 
{
	LCD1602_RS=1;//ѡ<><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	LCD1602_RW=0;//ѡ<><D1A1>д
	LCD1602_E=0;
	LCD1602_DATAPORT=dat;//׼<><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	delay_ms(1);
	LCD1602_E=1;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	delay_ms(1);
	LCD1602_E=0;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>		
}
#else
void lcd1602_write_data(u8 dat) 
{
	LCD1602_RS=1;//ѡ<><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	LCD1602_RW=0;//ѡ<><D1A1>д
	LCD1602_E=0;
	LCD1602_DATAPORT=dat;//׼<><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	delay_ms(1);
	LCD1602_E=1;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	delay_ms(1);
	LCD1602_E=0;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	
	LCD1602_DATAPORT=dat<<4;//׼<><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	delay_ms(1);
	LCD1602_E=1;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	delay_ms(1);
	LCD1602_E=0;//ʹ<>ܽ<EFBFBD>E<EFBFBD><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>		
}
#endif

/*******************************************************************************
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>       : lcd1602_init
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		 : LCD1602<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>       : <EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>    	 : <EFBFBD><EFBFBD>
*******************************************************************************/
#if (LCD1602_4OR8_DATA_INTERFACE==0)//8λLCD
void lcd1602_init(void)
{
	lcd1602_write_cmd(0x38);//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8λ<38><CEBB><EFBFBD><EFBFBD>ʾ2<CABE>У<EFBFBD>5*7<><37><EFBFBD><EFBFBD>/<2F>ַ<EFBFBD>
	lcd1602_write_cmd(0x0c);//<2F><>ʾ<EFBFBD><CABE><EFBFBD>ܿ<EFBFBD><DCBF><EFBFBD><EFBFBD>޹<EFBFBD><DEB9>꣬<EFBFBD><EAA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˸
	lcd1602_write_cmd(0x06);//д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݺ<EFBFBD><DDBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>
	lcd1602_write_cmd(0x01);//<2F><><EFBFBD><EFBFBD>	
}
#else
void lcd1602_init(void)
{
	lcd1602_write_cmd(0x28);//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4λ<34><CEBB><EFBFBD><EFBFBD>ʾ2<CABE>У<EFBFBD>5*7<><37><EFBFBD><EFBFBD>/<2F>ַ<EFBFBD>
	lcd1602_write_cmd(0x0c);//<2F><>ʾ<EFBFBD><CABE><EFBFBD>ܿ<EFBFBD><DCBF><EFBFBD><EFBFBD>޹<EFBFBD><DEB9>꣬<EFBFBD><EAA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˸
	lcd1602_write_cmd(0x06);//д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݺ<EFBFBD><DDBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>
	lcd1602_write_cmd(0x01);//<2F><><EFBFBD><EFBFBD>	
}
#endif

/*******************************************************************************
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>       : lcd1602_clear
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		 : LCD1602<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>       : <EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>    	 : <EFBFBD><EFBFBD>
*******************************************************************************/
void lcd1602_clear(void)
{
	lcd1602_write_cmd(0x01);	
}

/*******************************************************************************
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>       : lcd1602_show_string
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		 : LCD1602<EFBFBD><EFBFBD>ʾ<EFBFBD>ַ<EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>       : x,y<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD>꣬x=0~15<EFBFBD><EFBFBD>y=0~1;
				   str<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>    	 : <EFBFBD><EFBFBD>
*******************************************************************************/
void lcd1602_show_string(u8 x,u8 y,u8 *str)
{
	u8 i=0;

	if(y>1||x>15)return;//<2F><><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD>˳<EFBFBD>

	if(y<1)	//<2F><>1<EFBFBD><31><EFBFBD><EFBFBD>ʾ
	{	
		while(*str!='\0')//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>'\0'<27><>β<EFBFBD><CEB2>ֻҪǰ<D2AA><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݾ<EFBFBD><DDBE><EFBFBD>ʾ
		{
			if(i<16-x)//<2F><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ȳ<EFBFBD><C8B3><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD><EFBFBD>ڵڶ<DAB5><DAB6>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD>ʾ
			{
				lcd1602_write_cmd(0x80+i+x);//<2F><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>	
			}
			else
			{
				lcd1602_write_cmd(0x40+0x80+i+x-16);//<2F>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>	
			}
			lcd1602_write_data(*str);//<2F><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>
			str++;//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			i++;	
		}	
	}
	else	//<2F><>2<EFBFBD><32><EFBFBD><EFBFBD>ʾ
	{
		while(*str!='\0')
		{
			if(i<16-x) //<2F><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ȳ<EFBFBD><C8B3><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>һ<EFBFBD>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD>ʾ
			{
				lcd1602_write_cmd(0x80+0x40+i+x);	
			}
			else
			{
				lcd1602_write_cmd(0x80+i+x-16);	
			}
			lcd1602_write_data(*str);
			str++;
			i++;	
		}	
	}				
}


#endif