lcd.h

多通道电压表数模转换

/*   */
/****************************************************************************
Title	:   HD44780 LCD library 六线驱动
Authors:   
Software:  ICCAVR6.31A
Target:    M8
Copyright: 
       
*****************************************************************************/
#ifndef LCD_H
#define LCD_H
#include <macros.h>

typedef unsigned char  uchar;
typedef unsigned int   uint;

/* LCD显示属性的设定 */
#define LCD_LINES           2     /* 显示的行数 */
#define LCD_LINE_LENGTH    20     /* 每行显示的字符长度 */
#define LCD_START_LINE1  0x80     /* 第一行字符显示的地址 */
#define LCD_START_LINE2  0xc0     /* 第二行字符显示的地址 */
#define LCD_CGRAM_START  0x40     /* LCD字符自定义区CGRAM的首地址 */
/* LCD显示属性的设定 end*/

/* 硬件接口设置------------------------- 
   *可根据实际应用调节接口
----------------------------------------*/
#define LCD_DATA_PIN_D7  3      /*PB5 arbitrary pin for LCD data line D7 */
#define LCD_DATA_PIN_D6  4      /*PB4 arbitrary pin for LCD data line D7 */
#define LCD_DATA_PIN_D5  0      /*PB3 arbitrary pin for LCD data line D5 */
#define LCD_DATA_PIN_D4  5      /*PB0 arbitrary pin for LCD data line D4 */

#define LCD_DATA_DDR_D7  DDRB	/* ddr for LCD data line D7 */
#define LCD_DATA_DDR_D6  DDRB	/* ddr for LCD data line D6 */
#define LCD_DATA_DDR_D5  DDRB	/* ddr for LCD data line D5 */
#define LCD_DATA_DDR_D4  DDRB	/* ddr for LCD data line D4 */

#define LCD_DATA_PORT_D7 PORTB	/* port for LCD data line D7 */
#define LCD_DATA_PORT_D6 PORTB	/* port for LCD data line D6 */
#define LCD_DATA_PORT_D5 PORTB	/* port for LCD data line D5 */
#define LCD_DATA_PORT_D4 PORTB	/* port for LCD data line D4 */

#define LCD_RS_DDR       DDRD        /* ddr for RS line */
#define LCD_RS_PORT      PORTD       /* port for RS line */
#define LCD_RS_PIN       6           /* PD7     */
#define LCD_EN_DDR       DDRD        /* ddr for Enable line */
#define LCD_EN_PORT      PORTD       /* port for Enable line */
#define LCD_EN_PIN       7           /* PB6    */
/* 硬件接口设置 end*/

/*-------------------------
Public function prototypes
---------------------------*/
void lcd_init         	    (void);     //LCD初始化
void lcd_write_char         (unsigned command,unsigned data);//英文字符串显示函数
void lcd_write_half_char    (unsigned data);
void lcd_set_xy             (unsigned char x, unsigned char y);//设置LCD显示的起始位置
void lcd_write_string       (unsigned char X,unsigned char Y,unsigned char *s);//英文字符串显示函数
void lcd_write_nchar        (unsigned char X,unsigned char Y,unsigned char *s,unsigned int n);//英文n个字符串显示函数
void lcd_clear         	    (void);     // 显示清屏函数
void lcd_4BIT_enable        (void);     // 四位数据接口设定函数
void lcd_set_char           (void);     // 自定义字符函数
#endif //LCD_H