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David Buck / Mbed 2 deprecated lcdtft_only

main.cpp@0:0751be719bbf, 2009-12-16 (annotated)

Committer:: Kaikestu
Date:: Wed Dec 16 10:30:10 2009 +0000
Revision:: 0:0751be719bbf

Who changed what in which revision?

User	Revision	Line number	New contents of line
Kaikestu	0:0751be719bbf	1	#include "mbed.h"
Kaikestu	0:0751be719bbf	2
Kaikestu	0:0751be719bbf	3	#define BLACK 0x0000
Kaikestu	0:0751be719bbf	4	#define NAVY 0x000F
Kaikestu	0:0751be719bbf	5	#define DARK_GREEN 0x03E0
Kaikestu	0:0751be719bbf	6	#define DARK_CYAN 0x03EF
Kaikestu	0:0751be719bbf	7	#define MAROON 0x7800
Kaikestu	0:0751be719bbf	8	#define PURPLE 0x780F
Kaikestu	0:0751be719bbf	9	#define OLIVE 0x7BE0
Kaikestu	0:0751be719bbf	10	#define LIGHT_GRAY 0xC618
Kaikestu	0:0751be719bbf	11	#define DARK_GRAY 0x7BEF
Kaikestu	0:0751be719bbf	12	#define BLUE 0x001F
Kaikestu	0:0751be719bbf	13	#define GREEN 0x07E0
Kaikestu	0:0751be719bbf	14	#define CYAN 0x07FF
Kaikestu	0:0751be719bbf	15	#define RED 0xF800
Kaikestu	0:0751be719bbf	16	#define MAGENTA 0xF81F
Kaikestu	0:0751be719bbf	17	#define YELLOW 0xFFE0
Kaikestu	0:0751be719bbf	18	#define WHITE 0xFFFF
Kaikestu	0:0751be719bbf	19
Kaikestu	0:0751be719bbf	20
Kaikestu	0:0751be719bbf	21
Kaikestu	0:0751be719bbf	22	SPI spi (5,6,7);
Kaikestu	0:0751be719bbf	23	DigitalOut cs (13);
Kaikestu	0:0751be719bbf	24	DigitalOut rst (17);
Kaikestu	0:0751be719bbf	25	DigitalOut tcs (23);
Kaikestu	0:0751be719bbf	26
Kaikestu	0:0751be719bbf	27
Kaikestu	0:0751be719bbf	28
Kaikestu	0:0751be719bbf	29	int _hwidth = 320;
Kaikestu	0:0751be719bbf	30	int _hheight = 240;
Kaikestu	0:0751be719bbf	31
Kaikestu	0:0751be719bbf	32	void command(int value);
Kaikestu	0:0751be719bbf	33	void data(int value);
Kaikestu	0:0751be719bbf	34	void config(int index, int value);
Kaikestu	0:0751be719bbf	35	void lcd_movePen(int x, int y);
Kaikestu	0:0751be719bbf	36	void lcd_fillScreen(int color);
Kaikestu	0:0751be719bbf	37
Kaikestu	0:0751be719bbf	38	void lcd_point(int x, int y, int color);
Kaikestu	0:0751be719bbf	39	void lcd_circle(int x0, int y0, int r, int color);
Kaikestu	0:0751be719bbf	40
Kaikestu	0:0751be719bbf	41	int main() {
Kaikestu	0:0751be719bbf	42
Kaikestu	0:0751be719bbf	43	spi.frequency(10000000);
Kaikestu	0:0751be719bbf	44	spi.format(9);
Kaikestu	0:0751be719bbf	45
Kaikestu	0:0751be719bbf	46
Kaikestu	0:0751be719bbf	47	cs = 0;
Kaikestu	0:0751be719bbf	48
Kaikestu	0:0751be719bbf	49	rst = 0;
Kaikestu	0:0751be719bbf	50	wait(0.001);
Kaikestu	0:0751be719bbf	51	rst = 1;
Kaikestu	0:0751be719bbf	52	wait(0.001);
Kaikestu	0:0751be719bbf	53
Kaikestu	0:0751be719bbf	54
Kaikestu	0:0751be719bbf	55
Kaikestu	0:0751be719bbf	56	config(0x07
Kaikestu	0:0751be719bbf	57	, 1 << 5 // GON
Kaikestu	0:0751be719bbf	58	\| 0 << 4 // DTE
Kaikestu	0:0751be719bbf	59	\| 0 << 3 // CM
Kaikestu	0:0751be719bbf	60	\| 1 << 0 // D[1:0] = 01 - operate, but disp off
Kaikestu	0:0751be719bbf	61	);
Kaikestu	0:0751be719bbf	62
Kaikestu	0:0751be719bbf	63	config(0x00, 0001);
Kaikestu	0:0751be719bbf	64
Kaikestu	0:0751be719bbf	65	config(0x07, 1 << 5 \| 1 << 4 \| 0 << 3 \| 3 << 0 );
Kaikestu	0:0751be719bbf	66
Kaikestu	0:0751be719bbf	67	config(0x10, 0000);
Kaikestu	0:0751be719bbf	68
Kaikestu	0:0751be719bbf	69	wait(0.030);
Kaikestu	0:0751be719bbf	70
Kaikestu	0:0751be719bbf	71	config(0x02, 0x0600);
Kaikestu	0:0751be719bbf	72	config(0x01, 0x2b3f); // 1011
Kaikestu	0:0751be719bbf	73	config(0x25, 0xa000); // 70Hz freq
Kaikestu	0:0751be719bbf	74
Kaikestu	0:0751be719bbf	75
Kaikestu	0:0751be719bbf	76
Kaikestu	0:0751be719bbf	77
Kaikestu	0:0751be719bbf	78
Kaikestu	0:0751be719bbf	79	while (1) {
Kaikestu	0:0751be719bbf	80
Kaikestu	0:0751be719bbf	81	lcd_fillScreen(WHITE);
Kaikestu	0:0751be719bbf	82
Kaikestu	0:0751be719bbf	83	lcd_fillScreen(BLUE);
Kaikestu	0:0751be719bbf	84	lcd_fillScreen(GREEN);
Kaikestu	0:0751be719bbf	85
Kaikestu	0:0751be719bbf	86	}
Kaikestu	0:0751be719bbf	87	}
Kaikestu	0:0751be719bbf	88
Kaikestu	0:0751be719bbf	89
Kaikestu	0:0751be719bbf	90	void command(int value) {
Kaikestu	0:0751be719bbf	91	spi.write(value & 0xFF);
Kaikestu	0:0751be719bbf	92	}
Kaikestu	0:0751be719bbf	93
Kaikestu	0:0751be719bbf	94	void data(int value) {
Kaikestu	0:0751be719bbf	95	spi.write(value \| 0x100);
Kaikestu	0:0751be719bbf	96	}
Kaikestu	0:0751be719bbf	97
Kaikestu	0:0751be719bbf	98	void config(int index, int value) {
Kaikestu	0:0751be719bbf	99	command(0);
Kaikestu	0:0751be719bbf	100	command(index);
Kaikestu	0:0751be719bbf	101	data(value >> 8);
Kaikestu	0:0751be719bbf	102	data(value);
Kaikestu	0:0751be719bbf	103	}
Kaikestu	0:0751be719bbf	104
Kaikestu	0:0751be719bbf	105
Kaikestu	0:0751be719bbf	106	void lcd_movePen(int x, int y) {
Kaikestu	0:0751be719bbf	107	config(0x4e, x & 0x00ff);
Kaikestu	0:0751be719bbf	108	config(0x4f, y & 0x01ff);
Kaikestu	0:0751be719bbf	109	command(0);
Kaikestu	0:0751be719bbf	110	command(0x22);
Kaikestu	0:0751be719bbf	111	}
Kaikestu	0:0751be719bbf	112
Kaikestu	0:0751be719bbf	113	void lcd_fillScreen(int color) {
Kaikestu	0:0751be719bbf	114	int i = 0;
Kaikestu	0:0751be719bbf	115	int j = 0;
Kaikestu	0:0751be719bbf	116
Kaikestu	0:0751be719bbf	117	lcd_movePen(0, 0);
Kaikestu	0:0751be719bbf	118
Kaikestu	0:0751be719bbf	119	for (i=0; i < _hwidth; i++) {
Kaikestu	0:0751be719bbf	120	for (j=0; j< _hheight; j++) {
Kaikestu	0:0751be719bbf	121	data(color >> 8);
Kaikestu	0:0751be719bbf	122	data(color);
Kaikestu	0:0751be719bbf	123	}
Kaikestu	0:0751be719bbf	124	}
Kaikestu	0:0751be719bbf	125	}
Kaikestu	0:0751be719bbf	126	void lcd_point(int x, int y, int color) {
Kaikestu	0:0751be719bbf	127	data(color >> 8);
Kaikestu	0:0751be719bbf	128	data(color);
Kaikestu	0:0751be719bbf	129
Kaikestu	0:0751be719bbf	130	}
Kaikestu	0:0751be719bbf	131
Kaikestu	0:0751be719bbf	132	void lcd_circle(int x0, int y0, int r, int color) {
Kaikestu	0:0751be719bbf	133	int draw_x0, draw_y0;
Kaikestu	0:0751be719bbf	134	int draw_x1, draw_y1;
Kaikestu	0:0751be719bbf	135	int draw_x2, draw_y2;
Kaikestu	0:0751be719bbf	136	int draw_x3, draw_y3;
Kaikestu	0:0751be719bbf	137	int draw_x4, draw_y4;
Kaikestu	0:0751be719bbf	138	int draw_x5, draw_y5;
Kaikestu	0:0751be719bbf	139	int draw_x6, draw_y6;
Kaikestu	0:0751be719bbf	140	int draw_x7, draw_y7;
Kaikestu	0:0751be719bbf	141	int xx, yy;
Kaikestu	0:0751be719bbf	142	int di;
Kaikestu	0:0751be719bbf	143
Kaikestu	0:0751be719bbf	144
Kaikestu	0:0751be719bbf	145	draw_x0 = draw_x1 = x0;
Kaikestu	0:0751be719bbf	146	draw_y0 = draw_y1 = y0 + r;
Kaikestu	0:0751be719bbf	147	if (draw_y0 < _hheight) {
Kaikestu	0:0751be719bbf	148	lcd_point(draw_x0, draw_y0, color); /* 90 degree */
Kaikestu	0:0751be719bbf	149	}
Kaikestu	0:0751be719bbf	150
Kaikestu	0:0751be719bbf	151	draw_x2 = draw_x3 = x0;
Kaikestu	0:0751be719bbf	152	draw_y2 = draw_y3 = y0 - r;
Kaikestu	0:0751be719bbf	153	if (draw_y2 >= 0) {
Kaikestu	0:0751be719bbf	154	lcd_point(draw_x2, draw_y2, color); /* 270 degree */
Kaikestu	0:0751be719bbf	155	}
Kaikestu	0:0751be719bbf	156
Kaikestu	0:0751be719bbf	157	draw_x4 = draw_x6 = x0 + r;
Kaikestu	0:0751be719bbf	158	draw_y4 = draw_y6 = y0;
Kaikestu	0:0751be719bbf	159	if (draw_x4 < _hwidth) {
Kaikestu	0:0751be719bbf	160	lcd_point(draw_x4, draw_y4, color); /* 0 degree */
Kaikestu	0:0751be719bbf	161	}
Kaikestu	0:0751be719bbf	162
Kaikestu	0:0751be719bbf	163	draw_x5 = draw_x7 = x0 - r;
Kaikestu	0:0751be719bbf	164	draw_y5 = draw_y7 = y0;
Kaikestu	0:0751be719bbf	165	if (draw_x5>=0) {
Kaikestu	0:0751be719bbf	166	lcd_point(draw_x5, draw_y5, color); /* 180 degree */
Kaikestu	0:0751be719bbf	167	}
Kaikestu	0:0751be719bbf	168
Kaikestu	0:0751be719bbf	169	if (r == 1) {
Kaikestu	0:0751be719bbf	170	return;
Kaikestu	0:0751be719bbf	171	}
Kaikestu	0:0751be719bbf	172
Kaikestu	0:0751be719bbf	173	di = 3 - 2*r;
Kaikestu	0:0751be719bbf	174	xx = 0;
Kaikestu	0:0751be719bbf	175	yy = r;
Kaikestu	0:0751be719bbf	176	while (xx < yy) {
Kaikestu	0:0751be719bbf	177	if (di < 0) {
Kaikestu	0:0751be719bbf	178	di += 4*xx + 6;
Kaikestu	0:0751be719bbf	179	} else {
Kaikestu	0:0751be719bbf	180	di += 4*(xx - yy) + 10;
Kaikestu	0:0751be719bbf	181	yy--;
Kaikestu	0:0751be719bbf	182	draw_y0--;
Kaikestu	0:0751be719bbf	183	draw_y1--;
Kaikestu	0:0751be719bbf	184	draw_y2++;
Kaikestu	0:0751be719bbf	185	draw_y3++;
Kaikestu	0:0751be719bbf	186	draw_x4--;
Kaikestu	0:0751be719bbf	187	draw_x5++;
Kaikestu	0:0751be719bbf	188	draw_x6--;
Kaikestu	0:0751be719bbf	189	draw_x7++;
Kaikestu	0:0751be719bbf	190	}
Kaikestu	0:0751be719bbf	191	xx++;
Kaikestu	0:0751be719bbf	192	draw_x0++;
Kaikestu	0:0751be719bbf	193	draw_x1--;
Kaikestu	0:0751be719bbf	194	draw_x2++;
Kaikestu	0:0751be719bbf	195	draw_x3--;
Kaikestu	0:0751be719bbf	196	draw_y4++;
Kaikestu	0:0751be719bbf	197	draw_y5++;
Kaikestu	0:0751be719bbf	198	draw_y6--;
Kaikestu	0:0751be719bbf	199	draw_y7--;
Kaikestu	0:0751be719bbf	200
Kaikestu	0:0751be719bbf	201	if ( (draw_x0 <= _hwidth) && (draw_y0>=0) ) {
Kaikestu	0:0751be719bbf	202	lcd_point(draw_x0, draw_y0, color);
Kaikestu	0:0751be719bbf	203	}
Kaikestu	0:0751be719bbf	204
Kaikestu	0:0751be719bbf	205	if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
Kaikestu	0:0751be719bbf	206	lcd_point(draw_x1, draw_y1, color);
Kaikestu	0:0751be719bbf	207	}
Kaikestu	0:0751be719bbf	208
Kaikestu	0:0751be719bbf	209	if ( (draw_x2 <= _hwidth) && (draw_y2 <= _hheight) ) {
Kaikestu	0:0751be719bbf	210	lcd_point(draw_x2, draw_y2, color);
Kaikestu	0:0751be719bbf	211	}
Kaikestu	0:0751be719bbf	212
Kaikestu	0:0751be719bbf	213	if ( (draw_x3 >=0 ) && (draw_y3 <= _hheight) ) {
Kaikestu	0:0751be719bbf	214	lcd_point(draw_x3, draw_y3, color);
Kaikestu	0:0751be719bbf	215	}
Kaikestu	0:0751be719bbf	216
Kaikestu	0:0751be719bbf	217	if ( (draw_x4 <= _hheight) && (draw_y4 >= 0) ) {
Kaikestu	0:0751be719bbf	218	lcd_point(draw_x4, draw_y4, color);
Kaikestu	0:0751be719bbf	219	}
Kaikestu	0:0751be719bbf	220
Kaikestu	0:0751be719bbf	221	if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
Kaikestu	0:0751be719bbf	222	lcd_point(draw_x5, draw_y5, color);
Kaikestu	0:0751be719bbf	223	}
Kaikestu	0:0751be719bbf	224	if ( (draw_x6 <= _hwidth) && (draw_y6 <= _hheight) ) {
Kaikestu	0:0751be719bbf	225	lcd_point(draw_x6, draw_y6, color);
Kaikestu	0:0751be719bbf	226	}
Kaikestu	0:0751be719bbf	227	if ( (draw_x7 >= 0) && (draw_y7 <= _hheight) ) {
Kaikestu	0:0751be719bbf	228	lcd_point(draw_x7, draw_y7, color);
Kaikestu	0:0751be719bbf	229	}
Kaikestu	0:0751be719bbf	230	}
Kaikestu	0:0751be719bbf	231	}
Kaikestu	0:0751be719bbf	232
Kaikestu	0:0751be719bbf	233
Kaikestu	0:0751be719bbf	234

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	16 Dec 2009
Imports:	1
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

main.cpp@0:0751be719bbf, 2009-12-16 (annotated)

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