lcd.h

用的avr icc 开发的atmega16的超声波测距仪模型。

// ************************************************
// *** LCD_4BIT Driver V1.0 ***
// *** LCD.H ***
// ************************************************
/* LCD data bus, 4 bit mode */
// *** LCD Function *** //
//#pragma used+
#ifndef LCD_H
#define LCD_H
#ifdef LCD_C
// *** Set port for LCD Data Bus 8(RS+RW+EN+4) bit mode *** //
#define LCD_OP_PORT PORTA
#define LCD_IP_PORT PINA
#define LCD_DIR_PORT DDRA
// *** Set LCD Enable Port and Bit values *** //
//#define LCD_EN PORTC.2
// *** Set LCD Register Select Port and Bit values *** //
//#define LCD_RS PORTC.0
// *** Set LCD Read/Write Port and Bit values *** //
//#define LCD_RW PORTC.1
/****************************************************************/
 
void Init_LCD(void);
void LCD_WriteControl (unsigned char CMD);
void LCD_Display_Off(void);
void LCD_Display_On(void);
void LCD_Clear(void);
void LCD_Home(void);
void LCD_Cursor(char row, char column);
void LCD_Cursor_On(void);
void LCD_Cursor_Off(void);
void LCD_DisplayCharacter(char Char);
void LCD_DisplayString_F(char row, char column, const unsigned char  *string);
void LCD_DisplayString(char row, char column, unsigned char *string);
void ClearLine(unsigned char line);
#else
extern void Init_LCD(void);
extern void LCD_WriteControl (unsigned char CMD);
extern void LCD_Display_Off(void);
extern void LCD_Display_On(void);
extern void LCD_Clear(void);
extern void LCD_Home(void);
extern void LCD_Cursor(char row, char column);
extern void LCD_Cursor_On(void);
extern void LCD_Cursor_Off(void);
extern void LCD_DisplayCharacter(char Char);
extern void LCD_DisplayString_F(char row, char column,const unsigned char  *string);
extern void LCD_DisplayString(char row, char column, unsigned char *string);
extern void ClearLine(unsigned char line);
#endif
#endif
//#pragma used-