lcd.h

简单的LCD多级菜单显示

/*
**	This "lcd.h" defined some ports on CM12864-22 using on 89S52 
**		
*/
#ifndef _LCD_H
#define _LCD_H

/*12864（ST7920） pins define*/
#ifndef uint
#define uint unsigned int
#endif	/*UINT*/

#ifndef uchar
#define uchar unsigned char
#endif	/*UCHAR*/

sbit RS  = P2^0;
sbit RW  = P2^1;
sbit E   = P2^2;
sbit PSB = P2^3;
sbit RST = P2^4;
#define DATA P1
const unsigned char code jiemian0[] =
{
	"输入失调电压"
};
const unsigned char code jiemian1[] =
{
	"输入失调电流"
};
const unsigned char code jiemian2[] =
{
	"差开电压增益"
};
const unsigned char code jiemian3[] =
{
	"共模抑制比"
};
extern void delay_10us(unsigned char x);		
extern void delay_ms( unsigned int cnt);			
extern void smNop(void);
extern void xianshi(void);
extern void check_busy(void);
extern void send_com(const unsigned char command);
extern void send_com_init(const unsigned char command_init);
extern void send_data(const unsigned char data_a);
extern void send_data(const unsigned char data_a);
extern void clear_LCD(void);
extern void initial_LCD(void); 
extern void Display_num( unsigned char *ptr, unsigned char line, unsigned char col, unsigned char length );
extern void Display_ch( unsigned char *ptr, unsigned char line, unsigned char col, unsigned char length );						
#endif 	/*_LCD_H*/