uVGAII_4DGL - a version of 4DGL with a minor change for the uVG…

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a version of 4DGL with a minor change for the uVGAII 640 by 480 res

TFT_4DGL_main.cpp@0:e25ba425dc7b, 2011-02-24 (annotated)

Committer:: 4180_1
Date:: Thu Feb 24 15:14:36 2011 +0000
Revision:: 0:e25ba425dc7b

Who changed what in which revision?

User	Revision	Line number	New contents of line
4180_1	0:e25ba425dc7b	1	//
4180_1	0:e25ba425dc7b	2	// TFT_4DGL is a class to drive 4D Systems TFT touch screens
4180_1	0:e25ba425dc7b	3	//
4180_1	0:e25ba425dc7b	4	// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
4180_1	0:e25ba425dc7b	5	//
4180_1	0:e25ba425dc7b	6	// TFT_4DGL is free software: you can redistribute it and/or modify
4180_1	0:e25ba425dc7b	7	// it under the terms of the GNU General Public License as published by
4180_1	0:e25ba425dc7b	8	// the Free Software Foundation, either version 3 of the License, or
4180_1	0:e25ba425dc7b	9	// (at your option) any later version.
4180_1	0:e25ba425dc7b	10	//
4180_1	0:e25ba425dc7b	11	// TFT_4DGL is distributed in the hope that it will be useful,
4180_1	0:e25ba425dc7b	12	// but WITHOUT ANY WARRANTY; without even the implied warranty of
4180_1	0:e25ba425dc7b	13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4180_1	0:e25ba425dc7b	14	// GNU General Public License for more details.
4180_1	0:e25ba425dc7b	15	//
4180_1	0:e25ba425dc7b	16	// You should have received a copy of the GNU General Public License
4180_1	0:e25ba425dc7b	17	// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
4180_1	0:e25ba425dc7b	18
4180_1	0:e25ba425dc7b	19	#include "mbed.h"
4180_1	0:e25ba425dc7b	20	#include "TFT_4DGL.h"
4180_1	0:e25ba425dc7b	21
4180_1	0:e25ba425dc7b	22	Serial pc(USBTX,USBRX);
4180_1	0:e25ba425dc7b	23
4180_1	0:e25ba425dc7b	24	//******************************************************************************************************
4180_1	0:e25ba425dc7b	25	TFT_4DGL :: TFT_4DGL(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx), _rst(rst) { // Constructor
4180_1	0:e25ba425dc7b	26
4180_1	0:e25ba425dc7b	27	#if DEBUGMODE
4180_1	0:e25ba425dc7b	28	pc.baud(115200);
4180_1	0:e25ba425dc7b	29
4180_1	0:e25ba425dc7b	30	pc.printf("\n\n\n");
4180_1	0:e25ba425dc7b	31	pc.printf("********************\n");
4180_1	0:e25ba425dc7b	32	pc.printf("TFT_4DGL CONSTRUCTOR\n");
4180_1	0:e25ba425dc7b	33	pc.printf("********************\n");
4180_1	0:e25ba425dc7b	34	#endif
4180_1	0:e25ba425dc7b	35
4180_1	0:e25ba425dc7b	36	_rst = 1; // put RESET pin to high to start TFT screen
4180_1	0:e25ba425dc7b	37
4180_1	0:e25ba425dc7b	38	reset();
4180_1	0:e25ba425dc7b	39	autobaud(); // send autobaud command
4180_1	0:e25ba425dc7b	40	version(); // get version information
4180_1	0:e25ba425dc7b	41	cls(); // clear screen
4180_1	0:e25ba425dc7b	42
4180_1	0:e25ba425dc7b	43	current_col = 0; // initial cursor col
4180_1	0:e25ba425dc7b	44	current_row = 0; // initial cursor row
4180_1	0:e25ba425dc7b	45	current_color = WHITE; // initial text color
4180_1	0:e25ba425dc7b	46	current_orientation = IS_PORTRAIT; // initial screen orientation
4180_1	0:e25ba425dc7b	47
4180_1	0:e25ba425dc7b	48	set_font(FONT_5X7); // initial font
4180_1	0:e25ba425dc7b	49	text_mode(OPAQUE); // initial texr mode
4180_1	0:e25ba425dc7b	50	}
4180_1	0:e25ba425dc7b	51
4180_1	0:e25ba425dc7b	52	//******************************************************************************************************
4180_1	0:e25ba425dc7b	53	void TFT_4DGL :: writeBYTE(char c) { // send a BYTE command to screen
4180_1	0:e25ba425dc7b	54
4180_1	0:e25ba425dc7b	55	_cmd.putc(c);
4180_1	0:e25ba425dc7b	56	wait_ms(1);
4180_1	0:e25ba425dc7b	57
4180_1	0:e25ba425dc7b	58	#if DEBUGMODE
4180_1	0:e25ba425dc7b	59	pc.printf(" Char sent : 0x%02X\n",c);
4180_1	0:e25ba425dc7b	60	#endif
4180_1	0:e25ba425dc7b	61
4180_1	0:e25ba425dc7b	62	}
4180_1	0:e25ba425dc7b	63
4180_1	0:e25ba425dc7b	64	//******************************************************************************************************
4180_1	0:e25ba425dc7b	65	void TFT_4DGL :: freeBUFFER(void) { // Clear serial buffer before writing command
4180_1	0:e25ba425dc7b	66
4180_1	0:e25ba425dc7b	67	while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
4180_1	0:e25ba425dc7b	68	}
4180_1	0:e25ba425dc7b	69
4180_1	0:e25ba425dc7b	70	//******************************************************************************************************
4180_1	0:e25ba425dc7b	71	int TFT_4DGL :: writeCOMMAND(char *command, int number) { // send several BYTES making a command and return an answer
4180_1	0:e25ba425dc7b	72
4180_1	0:e25ba425dc7b	73	#if DEBUGMODE
4180_1	0:e25ba425dc7b	74	pc.printf("\n");
4180_1	0:e25ba425dc7b	75	pc.printf("New COMMAND : 0x%02X\n", command[0]);
4180_1	0:e25ba425dc7b	76	#endif
4180_1	0:e25ba425dc7b	77	int i, resp = 0;
4180_1	0:e25ba425dc7b	78	freeBUFFER();
4180_1	0:e25ba425dc7b	79
4180_1	0:e25ba425dc7b	80	for (i = 0; i < number; i++) writeBYTE(command[i]); // send command to serial port
4180_1	0:e25ba425dc7b	81
4180_1	0:e25ba425dc7b	82	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
4180_1	0:e25ba425dc7b	83	if (_cmd.readable()) resp = _cmd.getc(); // read response if any
4180_1	0:e25ba425dc7b	84	switch (resp) {
4180_1	0:e25ba425dc7b	85	case ACK : // if OK return 1
4180_1	0:e25ba425dc7b	86	resp = 1;
4180_1	0:e25ba425dc7b	87	break;
4180_1	0:e25ba425dc7b	88	case NAK : // if NOK return -1
4180_1	0:e25ba425dc7b	89	resp = -1;
4180_1	0:e25ba425dc7b	90	break;
4180_1	0:e25ba425dc7b	91	default :
4180_1	0:e25ba425dc7b	92	resp = 0; // else return 0
4180_1	0:e25ba425dc7b	93	break;
4180_1	0:e25ba425dc7b	94	}
4180_1	0:e25ba425dc7b	95	#if DEBUGMODE
4180_1	0:e25ba425dc7b	96	pc.printf(" Answer received : %d\n",resp);
4180_1	0:e25ba425dc7b	97	#endif
4180_1	0:e25ba425dc7b	98
4180_1	0:e25ba425dc7b	99	return resp;
4180_1	0:e25ba425dc7b	100	}
4180_1	0:e25ba425dc7b	101
4180_1	0:e25ba425dc7b	102	//**************************************************************************
4180_1	0:e25ba425dc7b	103	void TFT_4DGL :: reset() { // Reset Screen
4180_1	0:e25ba425dc7b	104
4180_1	0:e25ba425dc7b	105	_rst = 0; // put RESET pin to low
4180_1	0:e25ba425dc7b	106	wait_ms(TEMPO); // wait a few milliseconds for command reception
4180_1	0:e25ba425dc7b	107	_rst = 1; // put RESET back to high
4180_1	0:e25ba425dc7b	108	wait(3); // wait 3s for screen to restart
4180_1	0:e25ba425dc7b	109
4180_1	0:e25ba425dc7b	110	freeBUFFER(); // clean buffer from possible garbage
4180_1	0:e25ba425dc7b	111	}
4180_1	0:e25ba425dc7b	112
4180_1	0:e25ba425dc7b	113	//**************************************************************************
4180_1	0:e25ba425dc7b	114	void TFT_4DGL :: autobaud() { // send AutoBaud command (9600)
4180_1	0:e25ba425dc7b	115	char command[1] = "";
4180_1	0:e25ba425dc7b	116	command[0] = AUTOBAUD;
4180_1	0:e25ba425dc7b	117	writeCOMMAND(command, 1);
4180_1	0:e25ba425dc7b	118	}
4180_1	0:e25ba425dc7b	119
4180_1	0:e25ba425dc7b	120	//**************************************************************************
4180_1	0:e25ba425dc7b	121	void TFT_4DGL :: cls() { // clear screen
4180_1	0:e25ba425dc7b	122	char command[1] = "";
4180_1	0:e25ba425dc7b	123	command[0] = CLS;
4180_1	0:e25ba425dc7b	124	writeCOMMAND(command, 1);
4180_1	0:e25ba425dc7b	125	}
4180_1	0:e25ba425dc7b	126
4180_1	0:e25ba425dc7b	127	//**************************************************************************
4180_1	0:e25ba425dc7b	128	void TFT_4DGL :: version() { // get API version
4180_1	0:e25ba425dc7b	129	char command[2] = "";
4180_1	0:e25ba425dc7b	130	command[0] = VERSION;
4180_1	0:e25ba425dc7b	131	command[1] = OFF;
4180_1	0:e25ba425dc7b	132	readVERSION(command, 2);
4180_1	0:e25ba425dc7b	133	}
4180_1	0:e25ba425dc7b	134
4180_1	0:e25ba425dc7b	135	//**************************************************************************
4180_1	0:e25ba425dc7b	136	void TFT_4DGL :: baudrate(int speed) { // set screen baud rate
4180_1	0:e25ba425dc7b	137	char command[2]= "";
4180_1	0:e25ba425dc7b	138	command[0] = BAUDRATE;
4180_1	0:e25ba425dc7b	139	switch (speed) {
4180_1	0:e25ba425dc7b	140	case 110 :
4180_1	0:e25ba425dc7b	141	command[1] = BAUD_110;
4180_1	0:e25ba425dc7b	142	break;
4180_1	0:e25ba425dc7b	143	case 300 :
4180_1	0:e25ba425dc7b	144	command[1] = BAUD_300;
4180_1	0:e25ba425dc7b	145	break;
4180_1	0:e25ba425dc7b	146	case 600 :
4180_1	0:e25ba425dc7b	147	command[1] = BAUD_600;
4180_1	0:e25ba425dc7b	148	break;
4180_1	0:e25ba425dc7b	149	case 1200 :
4180_1	0:e25ba425dc7b	150	command[1] = BAUD_1200;
4180_1	0:e25ba425dc7b	151	break;
4180_1	0:e25ba425dc7b	152	case 2400 :
4180_1	0:e25ba425dc7b	153	command[1] = BAUD_2400;
4180_1	0:e25ba425dc7b	154	break;
4180_1	0:e25ba425dc7b	155	case 4800 :
4180_1	0:e25ba425dc7b	156	command[1] = BAUD_4800;
4180_1	0:e25ba425dc7b	157	break;
4180_1	0:e25ba425dc7b	158	case 9600 :
4180_1	0:e25ba425dc7b	159	command[1] = BAUD_9600;
4180_1	0:e25ba425dc7b	160	break;
4180_1	0:e25ba425dc7b	161	case 14400 :
4180_1	0:e25ba425dc7b	162	command[1] = BAUD_14400;
4180_1	0:e25ba425dc7b	163	break;
4180_1	0:e25ba425dc7b	164	case 19200 :
4180_1	0:e25ba425dc7b	165	command[1] = BAUD_19200;
4180_1	0:e25ba425dc7b	166	break;
4180_1	0:e25ba425dc7b	167	case 31250 :
4180_1	0:e25ba425dc7b	168	command[1] = BAUD_31250;
4180_1	0:e25ba425dc7b	169	break;
4180_1	0:e25ba425dc7b	170	case 38400 :
4180_1	0:e25ba425dc7b	171	command[1] = BAUD_38400;
4180_1	0:e25ba425dc7b	172	break;
4180_1	0:e25ba425dc7b	173	case 56000 :
4180_1	0:e25ba425dc7b	174	command[1] = BAUD_56000;
4180_1	0:e25ba425dc7b	175	break;
4180_1	0:e25ba425dc7b	176	case 57600 :
4180_1	0:e25ba425dc7b	177	command[1] = BAUD_57600;
4180_1	0:e25ba425dc7b	178	break;
4180_1	0:e25ba425dc7b	179	case 115200 :
4180_1	0:e25ba425dc7b	180	command[1] = BAUD_115200;
4180_1	0:e25ba425dc7b	181	break;
4180_1	0:e25ba425dc7b	182	case 128000 :
4180_1	0:e25ba425dc7b	183	command[1] = BAUD_128000;
4180_1	0:e25ba425dc7b	184	break;
4180_1	0:e25ba425dc7b	185	case 256000 :
4180_1	0:e25ba425dc7b	186	command[1] = BAUD_256000;
4180_1	0:e25ba425dc7b	187	break;
4180_1	0:e25ba425dc7b	188	default :
4180_1	0:e25ba425dc7b	189	command[1] = BAUD_9600;
4180_1	0:e25ba425dc7b	190	speed = 9600;
4180_1	0:e25ba425dc7b	191	break;
4180_1	0:e25ba425dc7b	192	}
4180_1	0:e25ba425dc7b	193
4180_1	0:e25ba425dc7b	194	int i, resp = 0;
4180_1	0:e25ba425dc7b	195
4180_1	0:e25ba425dc7b	196	freeBUFFER();
4180_1	0:e25ba425dc7b	197
4180_1	0:e25ba425dc7b	198	for (i = 0; i <2; i++) writeBYTE(command[i]); // send command to serial port
4180_1	0:e25ba425dc7b	199	_cmd.baud(speed); // set mbed to same speed
4180_1	0:e25ba425dc7b	200
4180_1	0:e25ba425dc7b	201	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
4180_1	0:e25ba425dc7b	202
4180_1	0:e25ba425dc7b	203	if (_cmd.readable()) resp = _cmd.getc(); // read response if any
4180_1	0:e25ba425dc7b	204	switch (resp) {
4180_1	0:e25ba425dc7b	205	case ACK : // if OK return 1
4180_1	0:e25ba425dc7b	206	resp = 1;
4180_1	0:e25ba425dc7b	207	break;
4180_1	0:e25ba425dc7b	208	case NAK : // if NOK return -1
4180_1	0:e25ba425dc7b	209	resp = -1;
4180_1	0:e25ba425dc7b	210	break;
4180_1	0:e25ba425dc7b	211	default :
4180_1	0:e25ba425dc7b	212	resp = 0; // else return 0
4180_1	0:e25ba425dc7b	213	break;
4180_1	0:e25ba425dc7b	214	}
4180_1	0:e25ba425dc7b	215	}
4180_1	0:e25ba425dc7b	216
4180_1	0:e25ba425dc7b	217	//******************************************************************************************************
4180_1	0:e25ba425dc7b	218	int TFT_4DGL :: readVERSION(char *command, int number) { // read screen info and populate data
4180_1	0:e25ba425dc7b	219
4180_1	0:e25ba425dc7b	220	int i, temp = 0, resp = 0;
4180_1	0:e25ba425dc7b	221	char response[5] = "";
4180_1	0:e25ba425dc7b	222
4180_1	0:e25ba425dc7b	223	freeBUFFER();
4180_1	0:e25ba425dc7b	224
4180_1	0:e25ba425dc7b	225	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
4180_1	0:e25ba425dc7b	226
4180_1	0:e25ba425dc7b	227	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
4180_1	0:e25ba425dc7b	228
4180_1	0:e25ba425dc7b	229	while (_cmd.readable()) {
4180_1	0:e25ba425dc7b	230	temp = _cmd.getc();
4180_1	0:e25ba425dc7b	231	response[resp++] = (char)temp;
4180_1	0:e25ba425dc7b	232	}
4180_1	0:e25ba425dc7b	233	switch (resp) {
4180_1	0:e25ba425dc7b	234	case 5 : // if OK populate data and return 1
4180_1	0:e25ba425dc7b	235	type = response[0];
4180_1	0:e25ba425dc7b	236	revision = response[1];
4180_1	0:e25ba425dc7b	237	firmware = response[2];
4180_1	0:e25ba425dc7b	238	reserved1 = response[3];
4180_1	0:e25ba425dc7b	239	reserved2 = response[4];
4180_1	0:e25ba425dc7b	240	resp = 1;
4180_1	0:e25ba425dc7b	241	break;
4180_1	0:e25ba425dc7b	242	default :
4180_1	0:e25ba425dc7b	243	resp = 0; // else return 0
4180_1	0:e25ba425dc7b	244	break;
4180_1	0:e25ba425dc7b	245	}
4180_1	0:e25ba425dc7b	246	return resp;
4180_1	0:e25ba425dc7b	247	}
4180_1	0:e25ba425dc7b	248
4180_1	0:e25ba425dc7b	249	//****************************************************************************************************
4180_1	0:e25ba425dc7b	250	void TFT_4DGL :: background_color(int color) { // set screen background color
4180_1	0:e25ba425dc7b	251	char command[3]= ""; // input color is in 24bits like 0xRRGGBB
4180_1	0:e25ba425dc7b	252
4180_1	0:e25ba425dc7b	253	command[0] = BCKGDCOLOR;
4180_1	0:e25ba425dc7b	254
4180_1	0:e25ba425dc7b	255	int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1	0:e25ba425dc7b	256	int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1	0:e25ba425dc7b	257	int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1	0:e25ba425dc7b	258
4180_1	0:e25ba425dc7b	259	command[1] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1	0:e25ba425dc7b	260	command[2] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1	0:e25ba425dc7b	261
4180_1	0:e25ba425dc7b	262	writeCOMMAND(command, 3);
4180_1	0:e25ba425dc7b	263	}
4180_1	0:e25ba425dc7b	264
4180_1	0:e25ba425dc7b	265	//****************************************************************************************************
4180_1	0:e25ba425dc7b	266	void TFT_4DGL :: display_control(char mode, char value) { // set screen mode to value
4180_1	0:e25ba425dc7b	267	char command[3]= "";
4180_1	0:e25ba425dc7b	268
4180_1	0:e25ba425dc7b	269	command[0] = DISPCONTROL;
4180_1	0:e25ba425dc7b	270	command[1] = mode;
4180_1	0:e25ba425dc7b	271	command[2] = value;
4180_1	0:e25ba425dc7b	272
4180_1	0:e25ba425dc7b	273	if (mode == ORIENTATION) {
4180_1	0:e25ba425dc7b	274	switch (value) {
4180_1	0:e25ba425dc7b	275	case LANDSCAPE :
4180_1	0:e25ba425dc7b	276	current_orientation = IS_LANDSCAPE;
4180_1	0:e25ba425dc7b	277	break;
4180_1	0:e25ba425dc7b	278	case LANDSCAPE_R :
4180_1	0:e25ba425dc7b	279	current_orientation = IS_LANDSCAPE;
4180_1	0:e25ba425dc7b	280	break;
4180_1	0:e25ba425dc7b	281	case PORTRAIT :
4180_1	0:e25ba425dc7b	282	current_orientation = IS_PORTRAIT;
4180_1	0:e25ba425dc7b	283	break;
4180_1	0:e25ba425dc7b	284	case PORTRAIT_R :
4180_1	0:e25ba425dc7b	285	current_orientation = IS_PORTRAIT;
4180_1	0:e25ba425dc7b	286	break;
4180_1	0:e25ba425dc7b	287	}
4180_1	0:e25ba425dc7b	288	}
4180_1	0:e25ba425dc7b	289	writeCOMMAND(command, 3);
4180_1	0:e25ba425dc7b	290	set_font(current_font);
4180_1	0:e25ba425dc7b	291	}
4180_1	0:e25ba425dc7b	292
4180_1	0:e25ba425dc7b	293	//****************************************************************************************************
4180_1	0:e25ba425dc7b	294	void TFT_4DGL :: set_volume(char value) { // set sound volume to value
4180_1	0:e25ba425dc7b	295	char command[2]= "";
4180_1	0:e25ba425dc7b	296
4180_1	0:e25ba425dc7b	297	command[0] = SETVOLUME;
4180_1	0:e25ba425dc7b	298	command[1] = value;
4180_1	0:e25ba425dc7b	299
4180_1	0:e25ba425dc7b	300	writeCOMMAND(command, 2);
4180_1	0:e25ba425dc7b	301	}
4180_1	0:e25ba425dc7b	302
4180_1	0:e25ba425dc7b	303
4180_1	0:e25ba425dc7b	304	//******************************************************************************************************
4180_1	0:e25ba425dc7b	305	void TFT_4DGL :: getTOUCH(char command, int number, int x, int *y) { // read screen info and populate data
4180_1	0:e25ba425dc7b	306
4180_1	0:e25ba425dc7b	307	#if DEBUGMODE
4180_1	0:e25ba425dc7b	308	pc.printf("\n");
4180_1	0:e25ba425dc7b	309	pc.printf("New COMMAND : 0x%02X\n", command[0]);
4180_1	0:e25ba425dc7b	310	#endif
4180_1	0:e25ba425dc7b	311	int i, temp = 0, resp = 0;
4180_1	0:e25ba425dc7b	312	char response[5] = "";
4180_1	0:e25ba425dc7b	313
4180_1	0:e25ba425dc7b	314	freeBUFFER();
4180_1	0:e25ba425dc7b	315
4180_1	0:e25ba425dc7b	316	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
4180_1	0:e25ba425dc7b	317
4180_1	0:e25ba425dc7b	318	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
4180_1	0:e25ba425dc7b	319
4180_1	0:e25ba425dc7b	320	while (_cmd.readable()) {
4180_1	0:e25ba425dc7b	321	temp = _cmd.getc();
4180_1	0:e25ba425dc7b	322	response[resp++] = (char)temp;
4180_1	0:e25ba425dc7b	323	}
4180_1	0:e25ba425dc7b	324
4180_1	0:e25ba425dc7b	325	#if DEBUGMODE
4180_1	0:e25ba425dc7b	326	pc.printf(" Answer received %d : 0x%02X 0x%02X 0x%02X 0x%02X\n", resp, response[0], response[1], response[2], response[3]);
4180_1	0:e25ba425dc7b	327	#endif
4180_1	0:e25ba425dc7b	328
4180_1	0:e25ba425dc7b	329	switch (resp) {
4180_1	0:e25ba425dc7b	330	case 4 : // if OK populate data
4180_1	0:e25ba425dc7b	331	x = ((response[0]<<8)+ response[1]) (response[0] != 0xFF);
4180_1	0:e25ba425dc7b	332	y = ((response[2]<<8)+ response[3]) (response[2] != 0xFF);
4180_1	0:e25ba425dc7b	333	break;
4180_1	0:e25ba425dc7b	334	default :
4180_1	0:e25ba425dc7b	335	*x = -1;
4180_1	0:e25ba425dc7b	336	*y = -1;
4180_1	0:e25ba425dc7b	337	break;
4180_1	0:e25ba425dc7b	338	}
4180_1	0:e25ba425dc7b	339
4180_1	0:e25ba425dc7b	340	#if DEBUGMODE
4180_1	0:e25ba425dc7b	341	pc.printf(" X,Y : %03d,%03d\n", x, y);
4180_1	0:e25ba425dc7b	342	#endif
4180_1	0:e25ba425dc7b	343	}
4180_1	0:e25ba425dc7b	344
4180_1	0:e25ba425dc7b	345	//******************************************************************************************************
4180_1	0:e25ba425dc7b	346	int TFT_4DGL :: getSTATUS(char *command, int number) { // read screen info and populate data
4180_1	0:e25ba425dc7b	347
4180_1	0:e25ba425dc7b	348	#if DEBUGMODE
4180_1	0:e25ba425dc7b	349	pc.printf("\n");
4180_1	0:e25ba425dc7b	350	pc.printf("New COMMAND : 0x%02X\n", command[0]);
4180_1	0:e25ba425dc7b	351	#endif
4180_1	0:e25ba425dc7b	352
4180_1	0:e25ba425dc7b	353	int i, temp = 0, resp = 0;
4180_1	0:e25ba425dc7b	354	char response[5] = "";
4180_1	0:e25ba425dc7b	355
4180_1	0:e25ba425dc7b	356	freeBUFFER();
4180_1	0:e25ba425dc7b	357
4180_1	0:e25ba425dc7b	358	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
4180_1	0:e25ba425dc7b	359
4180_1	0:e25ba425dc7b	360	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
4180_1	0:e25ba425dc7b	361
4180_1	0:e25ba425dc7b	362	while (_cmd.readable()) {
4180_1	0:e25ba425dc7b	363	temp = _cmd.getc();
4180_1	0:e25ba425dc7b	364	response[resp++] = (char)temp;
4180_1	0:e25ba425dc7b	365	}
4180_1	0:e25ba425dc7b	366	switch (resp) {
4180_1	0:e25ba425dc7b	367	case 4 :
4180_1	0:e25ba425dc7b	368	resp = (int)response[1]; // if OK populate data
4180_1	0:e25ba425dc7b	369	break;
4180_1	0:e25ba425dc7b	370	default :
4180_1	0:e25ba425dc7b	371	resp = -1; // else return 0
4180_1	0:e25ba425dc7b	372	break;
4180_1	0:e25ba425dc7b	373	}
4180_1	0:e25ba425dc7b	374
4180_1	0:e25ba425dc7b	375	#if DEBUGMODE
4180_1	0:e25ba425dc7b	376	pc.printf(" Answer received : %d\n", resp);
4180_1	0:e25ba425dc7b	377	#endif
4180_1	0:e25ba425dc7b	378
4180_1	0:e25ba425dc7b	379	return resp;
4180_1	0:e25ba425dc7b	380	}

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Type:	Library
Created:	24 Feb 2011
Imports:	33
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	2

TFT_4DGL_main.cpp@0:e25ba425dc7b, 2011-02-24 (annotated)

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