lcd128x64.h

embedded graphics library for avr

#ifndef _LCD128x64_H
#define _LCD128x64_H

/* equate the LCD Controller control signals to their port assignments */
sbit LCD_RST = P3^0;				/* port bit for Display Reset */
sbit LCD_CS = P3^1;					/* port bit for Chip Select */
sbit LCD_CD = P3^2;					/* port bit for Control/Data Select */
sbit LCD_SCLK = P3^4;				/* port bit for the Serial Clock */
sbit LCD_SDAT = P3^6;				/* port bit for the Serial Data */

/* command function equates for S6B0724 LCD Display Controller */
#define LCD_DISP_OFF 		0xAE	/* turn LCD panel OFF */
#define LCD_DISP_ON			0xAF	/* turn LCD panel ON */
#define LCD_SET_LINE		0x40	/* set line for COM0 (6 lsbs = ST5:ST4:ST3:ST2:ST1:ST0) */
#define LCD_SET_PAGE		0xB0	/* set page address (4 lsbs = P3:P2:P1:P0) */
#define LCD_SET_COL_HI		0x10	/* set column address (4 lsbs = Y7:Y6:Y5:Y4) */
#define LCD_SET_COL_LO		0x00	/* set column address (4 lsbs = Y3:Y2:Y1:Y0) */
#define LCD_SET_ADC_NOR		0xA0	/* ADC set for normal direction */
#define LCD_SET_ADC_REV		0xA1	/* ADC set for reverse direction */
#define LCD_DISP_NOR		0xA6	/* normal pixel display */
#define LCD_DISP_REV		0xA7	/* reverse pixel display */
#define LCD_EON_OFF			0xA4	/* normal display mode */
#define LCD_EON_ON			0xA5	/* entire dsplay on */
#define LCD_SET_BIAS_0		0xA2	/* set LCD bias select to 0 */
#define LCD_SET_BIAS_1		0xA3	/* set LCD boas select to 1 */
#define LCD_SET_MODIFY		0xE0	/* set modfy read mode */
#define LCD_CLR_MODIFY		0xEE	/* clear modify read mode */
#define LCD_RESET			0xE2	/* soft reset command */
#define LCD_SET_SHL_NOR		0xC0	/* set COM direction normal */
#define LCD_SET_SHL_REV		0xC8	/* set COM direction reverse */
#define LCD_PWR_CTL			0x28	/* set power control (3 lsbs = VC:VR:VF) */
#define LCD_REG_RESISTOR	0x20	/* set regulator resistor (3 lsbs = R2:R1:R0) */
#define LCD_REF_VOLT_MODE	0x81	/* set reference voltage mode (first of dual command) */
#define LCD_REF_VOLT_REG	0x00	/* set reference voltage register (6 lsbs = SV5:SV4:SV3:SV2:SV1:SV0) */
#define LCD_ST_IND_MODE_0	0xAC	/* set static indicator mode to 0 */
#define LCD_ST_IND_MODE_1	0xAD	/* set static indicator mode to 1 */
#define LCD_ST_IND_REG		0x00	/* set the static indicator register (2 lsbs = S1:S0) */
#define LCD_NOP				0xE3	/* LCD controller NOP command */
#define LCD_TEST_CMD_1		0xF0	/* LCD Test Instruction 1.. do not use */
#define LCD_TEST_CMD_2		0x90	/* LCD Test Instruction 2.. do not use */

/* LCD screen and bitmap image array consants */
#define X_BYTES				128
#define Y_BYTES	      		8
#define SCRN_LEFT			0
#define SCRN_TOP			0
#define SCRN_RIGHT			127
#define SCRN_BOTTOM			63

/* LCD Global data arrays */
extern const unsigned char code l_mask_array[8];
extern unsigned char xdata l_display_array[Y_BYTES][X_BYTES];

/* LCD function prototype list */
extern void lcd_init(void);
extern void lcd_out_dat(char dat);
extern void lcd_out_ctl(char dat);
extern void lcd_erase(void);
extern void lcd_test(unsigned char pattern);
extern void lcd_clear_area(unsigned char left,  unsigned char top,    
			               unsigned char right, unsigned char bottom);
extern void lcd_invert_area(unsigned char left,  unsigned char top,    
			                unsigned char right, unsigned char bottom);
extern void lcd_horz_line(unsigned char left, unsigned char right,
		                  unsigned char row);
extern void lcd_vert_line(unsigned char top, unsigned char bottom,
		                  unsigned char column);
extern void lcd_clr_horz_line(unsigned char left, unsigned char right,
		                      unsigned char row);
extern void lcd_clr_vert_line(unsigned char top, unsigned char bottom,
		                      unsigned char column);
extern void lcd_box(unsigned char left, unsigned char top,
                    unsigned char right, unsigned char bottom);
extern void lcd_clr_box(unsigned char left, unsigned char top,
                        unsigned char right, unsigned char bottom);
extern void lcd_glyph(unsigned char left, unsigned char top,
			          unsigned char width, unsigned char height,
			          unsigned char *glyph, unsigned char store_width);
extern void lcd_text(unsigned char left, unsigned char top, unsigned char font, char *str);
extern void lcd_update(unsigned char top, unsigned char bottom);

#endif