/**********************************************************************
 * LCD display driver for SB1602 module
 * 4 bit transfer mode
 *
 * See lcd4.c for details.
 **********************************************************************/

#define LCD_CMD 0
#define LCD_DATA 1

/* set cursor position */
#define Set_Pos(x) Putc_LCD4(((x)&0x7F)|0x80, LCD_CMD)

/* clear display */
#define Clr_LCD4 (Putc_LCD4(0x01, LCD_CMD),__delay_ms(2))

/* initialize the LCD */
extern void Init_LCD4(void);

/* write one byte character or command */
extern void Putc_LCD4(char , char);

/* write character string */
extern void Puts_LCD4(char *);

/* shift display n times */
void Shift_LN(int);
void Shift_RN(int);

/* shift display to right */
#define Shift_R Putc_LCD4(0x1C, LCD_CMD)

/* shift display to left */
#define Shift_L Putc_LCD4(0x18, LCD_CMD)

/* CGRAM write */
/***** EEPROM Setting *****/
void CGRAM(char, char *);