// Copyright (c) 2004 senz at arm.dreamislife.
com
//
//
// THIS FILE IS PROVIDED AS IS WITH NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
/***************************************/
/* LCD routines for OLIMEX LPC-MT-2106 */
/* 16x2 Character LCD 1602K */
/* 4-bit mode operation */
/***************************************/
/* DEFINE IOMASK */
#define LCD_D4 0x10 //P0.04
#define LCD_D5 0x20 //P0.05
#define LCD_D6 0x40 //P0.06
#define LCD_D7 0x80 //P0.07
#define LCD_EN 0x400000 //P0.22
#define LCD_RS 0x800000 //P0.23
#define LCD_RW 0x1000000 //P0.24
#define LCD_DATA (LCD_D4|LCD_D5|LCD_D6|LCD_D7)
#define LCD_IOALL (LCD_D4|LCD_D5|LCD_D6|LCD_D7|LCD_EN|LCD_RS|LCD_RW)
#define LCD_GPIO_SEL0 0x0000FF00 //MASK for P0.04-P0.07
#define LCD_GPIO_SEL1 0x0003F000 //MASK for P0.22-P0.24
/* Functions Header */
/* internal I/O functions */
#define lcd_rs_set() IOSET |= LCD_RS
#define lcd_rs_clr() IOCLR |= LCD_RS
#define lcd_en_set() IOSET |= LCD_EN
#define lcd_en_clr() IOCLR |= LCD_EN
#define lcd_rw_set() IOSET |= LCD_RW
#define lcd_rw_clr() IOCLR |= LCD_RW
/* wait until lcd controller is free */
void lcd_wait();
void lcd_out_data4(unsigned char);
void lcd_write_nibbles(unsigned char);
void lcd_write_control(unsigned char);
/* initialize both the GPIO of lpc and LCD */
void lcd_init();
#define lcd_clear() lcd_write_control(0x01)
#define lcd_cursor_home() lcd_write_control(0x02)
#define lcd_display_on() lcd_write_control(0x0E)
#define lcd_display_off() lcd_write_control(0x08)
#define lcd_cursor_blink() lcd_write_control(0x0F)
#define lcd_cursor_on() lcd_write_control(0x0E)
#define lcd_cursor_off() lcd_write_control(0x0C)
#define lcd_cursor_left() lcd_write_control(0x10)
#define lcd_cursor_right() lcd_write_control(0x14)
#define lcd_display_sleft() lcd_write_control(0x18)
#define lcd_display_sright() lcd_write_control(0x1C)
/* put a character out to lcd */
void lcd_putchar(unsigned char);
/* print a string */
void lcd_print(unsigned char*);
