1602.h

lcd1602的四位数据线用法

#ifndef __1602_H__
#define __1602_H__

#include<REG51.h>
#include<ABSACC.H>
#include <intrins.h>


sbit LCD_RS =	P2^1;
sbit LCD_E =	P2^3;
//sbit D4_R1 =	P2^4;
//sbit D5_R2 =	P2^5;
//sbit D6_R3 =	P2^6;
//sbit D7_R4 =	P2^7;

void delay_lcd(unsigned char time);
void com_h(unsigned char temp , unsigned char time);
void com_f(unsigned char ch_temp);
void dat(unsigned char dat_temp);
void dispchar(unsigned char x,unsigned char y,unsigned char ddat);
void inst_lcd(void);
void disp(unsigned char x,unsigned char y,unsigned char dec);
void disp_bcd(unsigned char x,unsigned char y,unsigned char bcd);
#endif