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TFT_4DGL_main.cpp@0:e3b298a12eea, 2011-01-17 (annotated)

Committer:: JLS
Date:: Mon Jan 17 21:44:09 2011 +0000
Revision:: 0:e3b298a12eea

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User	Revision	Line number	New contents of line
JLS	0:e3b298a12eea	1	//
JLS	0:e3b298a12eea	2	// TFT_4DGL is a class to drive 4D Systems TFT touch screens
JLS	0:e3b298a12eea	3	//
JLS	0:e3b298a12eea	4	// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
JLS	0:e3b298a12eea	5	//
JLS	0:e3b298a12eea	6	// TFT_4DGL is free software: you can redistribute it and/or modify
JLS	0:e3b298a12eea	7	// it under the terms of the GNU General Public License as published by
JLS	0:e3b298a12eea	8	// the Free Software Foundation, either version 3 of the License, or
JLS	0:e3b298a12eea	9	// (at your option) any later version.
JLS	0:e3b298a12eea	10	//
JLS	0:e3b298a12eea	11	// TFT_4DGL is distributed in the hope that it will be useful,
JLS	0:e3b298a12eea	12	// but WITHOUT ANY WARRANTY; without even the implied warranty of
JLS	0:e3b298a12eea	13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
JLS	0:e3b298a12eea	14	// GNU General Public License for more details.
JLS	0:e3b298a12eea	15	//
JLS	0:e3b298a12eea	16	// You should have received a copy of the GNU General Public License
JLS	0:e3b298a12eea	17	// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
JLS	0:e3b298a12eea	18
JLS	0:e3b298a12eea	19	#include "mbed.h"
JLS	0:e3b298a12eea	20	#include "TFT_4DGL.h"
JLS	0:e3b298a12eea	21
JLS	0:e3b298a12eea	22	Serial pc(USBTX,USBRX);
JLS	0:e3b298a12eea	23	//DigitalOut led1(LED1), led2(LED2);
JLS	0:e3b298a12eea	24
JLS	0:e3b298a12eea	25	//******************************************************************************************************
JLS	0:e3b298a12eea	26	TFT_4DGL :: TFT_4DGL(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx), _rst(rst) { // Constructor
JLS	0:e3b298a12eea	27
JLS	0:e3b298a12eea	28	#if DEBUGMODE
JLS	0:e3b298a12eea	29	pc.baud(115200);
JLS	0:e3b298a12eea	30
JLS	0:e3b298a12eea	31	pc.printf("\n\n\n");
JLS	0:e3b298a12eea	32	pc.printf("********************\n\r");
JLS	0:e3b298a12eea	33	pc.printf("TFT_4DGL CONSTRUCTOR\n\r");
JLS	0:e3b298a12eea	34	pc.printf("********************\n\r");
JLS	0:e3b298a12eea	35	#endif
JLS	0:e3b298a12eea	36
JLS	0:e3b298a12eea	37	_rst = 1; // put RESET pin to high to start TFT screen
JLS	0:e3b298a12eea	38
JLS	0:e3b298a12eea	39	reset();
JLS	0:e3b298a12eea	40	autobaud(); // send autobaud command
JLS	0:e3b298a12eea	41	baudrate(256000); // set the initial baudrate to 256kbps - fastest supported by uLCD-32PT
JLS	0:e3b298a12eea	42	cls(); // clear screen
JLS	0:e3b298a12eea	43
JLS	0:e3b298a12eea	44	current_col = 0; // initial cursor col
JLS	0:e3b298a12eea	45	current_row = 0; // initial cursor row
JLS	0:e3b298a12eea	46	current_color = WHITE; // initial text color
JLS	0:e3b298a12eea	47	current_orientation = IS_PORTRAIT; // initial screen orientation
JLS	0:e3b298a12eea	48
JLS	0:e3b298a12eea	49	set_font(FONT_5X7); // initial font
JLS	0:e3b298a12eea	50	text_mode(TRANSPARENT); // initial text mode
JLS	0:e3b298a12eea	51	display_control(0x06,0x00); // initial Image control new format
JLS	0:e3b298a12eea	52	}
JLS	0:e3b298a12eea	53
JLS	0:e3b298a12eea	54	//******************************************************************************************************
JLS	0:e3b298a12eea	55	void TFT_4DGL :: writeBYTE(char c) { // send a BYTE command to screen
JLS	0:e3b298a12eea	56
JLS	0:e3b298a12eea	57	_cmd.putc(c);
JLS	0:e3b298a12eea	58
JLS	0:e3b298a12eea	59	#if DEBUGMODE
JLS	0:e3b298a12eea	60	pc.printf(" Char sent : 0x%02X ",c);
JLS	0:e3b298a12eea	61	pc.putc(c);
JLS	0:e3b298a12eea	62	pc.printf(" \n\r");
JLS	0:e3b298a12eea	63	#endif
JLS	0:e3b298a12eea	64
JLS	0:e3b298a12eea	65	}
JLS	0:e3b298a12eea	66
JLS	0:e3b298a12eea	67	//******************************************************************************************************
JLS	0:e3b298a12eea	68	void TFT_4DGL :: freeBUFFER(void) { // Clear serial buffer before writing command
JLS	0:e3b298a12eea	69
JLS	0:e3b298a12eea	70	while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
JLS	0:e3b298a12eea	71	}
JLS	0:e3b298a12eea	72
JLS	0:e3b298a12eea	73	//******************************************************************************************************
JLS	0:e3b298a12eea	74	int TFT_4DGL :: writeCOMMAND(char *command, int number) { // send several BYTES making a command and return an answer
JLS	0:e3b298a12eea	75
JLS	0:e3b298a12eea	76	#if DEBUGMODE
JLS	0:e3b298a12eea	77	pc.printf("\n\r");
JLS	0:e3b298a12eea	78	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS	0:e3b298a12eea	79	#endif
JLS	0:e3b298a12eea	80	int i, resp = 0;
JLS	0:e3b298a12eea	81	freeBUFFER();
JLS	0:e3b298a12eea	82
JLS	0:e3b298a12eea	83	for (i = 0; i < number; i++) writeBYTE(command[i]); // send command to serial port
JLS	0:e3b298a12eea	84
JLS	0:e3b298a12eea	85	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS	0:e3b298a12eea	86	if (_cmd.readable()) resp = _cmd.getc(); // read response if any
JLS	0:e3b298a12eea	87	switch (resp) {
JLS	0:e3b298a12eea	88	case ACK : // if OK return 1
JLS	0:e3b298a12eea	89	resp = 1;
JLS	0:e3b298a12eea	90	break;
JLS	0:e3b298a12eea	91	case NAK : // if NOK return -1
JLS	0:e3b298a12eea	92	resp = -1;
JLS	0:e3b298a12eea	93	break;
JLS	0:e3b298a12eea	94	default :
JLS	0:e3b298a12eea	95	resp = 0; // else return 0
JLS	0:e3b298a12eea	96	break;
JLS	0:e3b298a12eea	97	}
JLS	0:e3b298a12eea	98	#if DEBUGMODE
JLS	0:e3b298a12eea	99	pc.printf(" Answer received : %d\n\r",resp);
JLS	0:e3b298a12eea	100	#endif
JLS	0:e3b298a12eea	101
JLS	0:e3b298a12eea	102	return resp;
JLS	0:e3b298a12eea	103	}
JLS	0:e3b298a12eea	104
JLS	0:e3b298a12eea	105	//**************************************************************************
JLS	0:e3b298a12eea	106	void TFT_4DGL :: reset() { // Reset Screen
JLS	0:e3b298a12eea	107
JLS	0:e3b298a12eea	108	_rst = 0; // put RESET pin to low
JLS	0:e3b298a12eea	109	wait_ms(TEMPO); // wait a few milliseconds for command reception
JLS	0:e3b298a12eea	110	_rst = 1; // put RESET back to high
JLS	0:e3b298a12eea	111	wait(3); // wait 3s for screen to restart
JLS	0:e3b298a12eea	112
JLS	0:e3b298a12eea	113	freeBUFFER(); // clean buffer from possible garbage
JLS	0:e3b298a12eea	114	}
JLS	0:e3b298a12eea	115
JLS	0:e3b298a12eea	116	//**************************************************************************
JLS	0:e3b298a12eea	117	void TFT_4DGL :: autobaud() { // send AutoBaud command (9600)
JLS	0:e3b298a12eea	118	char command[1] = "";
JLS	0:e3b298a12eea	119	command[0] = AUTOBAUD;
JLS	0:e3b298a12eea	120	writeCOMMAND(command, 1);
JLS	0:e3b298a12eea	121	}
JLS	0:e3b298a12eea	122
JLS	0:e3b298a12eea	123	//**************************************************************************
JLS	0:e3b298a12eea	124	void TFT_4DGL :: cls() { // clear screen
JLS	0:e3b298a12eea	125	char command[1] = "";
JLS	0:e3b298a12eea	126	command[0] = CLS;
JLS	0:e3b298a12eea	127	writeCOMMAND(command, 1);
JLS	0:e3b298a12eea	128	}
JLS	0:e3b298a12eea	129
JLS	0:e3b298a12eea	130	//**************************************************************************
JLS	0:e3b298a12eea	131	void TFT_4DGL :: version() { // get API version
JLS	0:e3b298a12eea	132	char command[2] = "";
JLS	0:e3b298a12eea	133	command[0] = VERSION;
JLS	0:e3b298a12eea	134	command[1] = OFF;
JLS	0:e3b298a12eea	135	readVERSION(command, 2);
JLS	0:e3b298a12eea	136	}
JLS	0:e3b298a12eea	137
JLS	0:e3b298a12eea	138	//**************************************************************************
JLS	0:e3b298a12eea	139	void TFT_4DGL :: baudrate(long speed) { // set screen baud rate
JLS	0:e3b298a12eea	140	char command[2]= "";
JLS	0:e3b298a12eea	141	command[0] = BAUDRATE;
JLS	0:e3b298a12eea	142	switch (speed) {
JLS	0:e3b298a12eea	143	case 110 :
JLS	0:e3b298a12eea	144	command[1] = BAUD_110;
JLS	0:e3b298a12eea	145	break;
JLS	0:e3b298a12eea	146	case 300 :
JLS	0:e3b298a12eea	147	command[1] = BAUD_300;
JLS	0:e3b298a12eea	148	break;
JLS	0:e3b298a12eea	149	case 600 :
JLS	0:e3b298a12eea	150	command[1] = BAUD_600;
JLS	0:e3b298a12eea	151	break;
JLS	0:e3b298a12eea	152	case 1200 :
JLS	0:e3b298a12eea	153	command[1] = BAUD_1200;
JLS	0:e3b298a12eea	154	break;
JLS	0:e3b298a12eea	155	case 2400 :
JLS	0:e3b298a12eea	156	command[1] = BAUD_2400;
JLS	0:e3b298a12eea	157	break;
JLS	0:e3b298a12eea	158	case 4800 :
JLS	0:e3b298a12eea	159	command[1] = BAUD_4800;
JLS	0:e3b298a12eea	160	break;
JLS	0:e3b298a12eea	161	case 9600 :
JLS	0:e3b298a12eea	162	command[1] = BAUD_9600;
JLS	0:e3b298a12eea	163	break;
JLS	0:e3b298a12eea	164	case 14400 :
JLS	0:e3b298a12eea	165	command[1] = BAUD_14400;
JLS	0:e3b298a12eea	166	break;
JLS	0:e3b298a12eea	167	case 19200 :
JLS	0:e3b298a12eea	168	command[1] = BAUD_19200;
JLS	0:e3b298a12eea	169	break;
JLS	0:e3b298a12eea	170	case 31250 :
JLS	0:e3b298a12eea	171	command[1] = BAUD_31250;
JLS	0:e3b298a12eea	172	break;
JLS	0:e3b298a12eea	173	case 38400 :
JLS	0:e3b298a12eea	174	command[1] = BAUD_38400;
JLS	0:e3b298a12eea	175	break;
JLS	0:e3b298a12eea	176	case 56000 :
JLS	0:e3b298a12eea	177	command[1] = BAUD_56000;
JLS	0:e3b298a12eea	178	break;
JLS	0:e3b298a12eea	179	case 57600 :
JLS	0:e3b298a12eea	180	command[1] = BAUD_57600;
JLS	0:e3b298a12eea	181	break;
JLS	0:e3b298a12eea	182	case 115200 :
JLS	0:e3b298a12eea	183	command[1] = BAUD_115200;
JLS	0:e3b298a12eea	184	break;
JLS	0:e3b298a12eea	185	case 128000 :
JLS	0:e3b298a12eea	186	command[1] = BAUD_128000;
JLS	0:e3b298a12eea	187	break;
JLS	0:e3b298a12eea	188	case 256000 :
JLS	0:e3b298a12eea	189	command[1] = BAUD_256000;
JLS	0:e3b298a12eea	190	break;
JLS	0:e3b298a12eea	191	default :
JLS	0:e3b298a12eea	192	command[1] = BAUD_9600;
JLS	0:e3b298a12eea	193	speed = 9600;
JLS	0:e3b298a12eea	194	break;
JLS	0:e3b298a12eea	195	}
JLS	0:e3b298a12eea	196
JLS	0:e3b298a12eea	197	#if DEBUGMODE
JLS	0:e3b298a12eea	198	pc.printf("\n\r");
JLS	0:e3b298a12eea	199	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS	0:e3b298a12eea	200	#endif
JLS	0:e3b298a12eea	201
JLS	0:e3b298a12eea	202	int i, resp = 0;
JLS	0:e3b298a12eea	203	freeBUFFER();
JLS	0:e3b298a12eea	204
JLS	0:e3b298a12eea	205	if(speed==256000)
JLS	0:e3b298a12eea	206	speed=281000; //If baud rate is 256K comm at 281k - as instructed by 4DGL
JLS	0:e3b298a12eea	207
JLS	0:e3b298a12eea	208	for (i = 0; i <2; i++) writeBYTE(command[i]); // send command to serial port
JLS	0:e3b298a12eea	209	_cmd.baud(speed); // set mbed to same speed
JLS	0:e3b298a12eea	210
JLS	0:e3b298a12eea	211	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS	0:e3b298a12eea	212
JLS	0:e3b298a12eea	213	if (_cmd.readable()) resp = _cmd.getc(); // read response if any
JLS	0:e3b298a12eea	214	switch (resp) {
JLS	0:e3b298a12eea	215	case ACK : // if OK return 1
JLS	0:e3b298a12eea	216	resp = 1;
JLS	0:e3b298a12eea	217	break;
JLS	0:e3b298a12eea	218	case NAK : // if NOK return -1
JLS	0:e3b298a12eea	219	resp = -1;
JLS	0:e3b298a12eea	220	break;
JLS	0:e3b298a12eea	221	default :
JLS	0:e3b298a12eea	222	resp = 0; // else return 0
JLS	0:e3b298a12eea	223	break;
JLS	0:e3b298a12eea	224	}
JLS	0:e3b298a12eea	225	#if DEBUGMODE
JLS	0:e3b298a12eea	226	pc.printf(" Baudrate reply received : %d\n\r",resp);
JLS	0:e3b298a12eea	227	#endif
JLS	0:e3b298a12eea	228	}
JLS	0:e3b298a12eea	229
JLS	0:e3b298a12eea	230	//******************************************************************************************************
JLS	0:e3b298a12eea	231	int TFT_4DGL :: readVERSION(char *command, int number) { // read screen info and populate data
JLS	0:e3b298a12eea	232
JLS	0:e3b298a12eea	233	int i, temp = 0, resp = 0;
JLS	0:e3b298a12eea	234	char response[5] = "";
JLS	0:e3b298a12eea	235
JLS	0:e3b298a12eea	236	freeBUFFER();
JLS	0:e3b298a12eea	237
JLS	0:e3b298a12eea	238	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS	0:e3b298a12eea	239
JLS	0:e3b298a12eea	240	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS	0:e3b298a12eea	241
JLS	0:e3b298a12eea	242	while (_cmd.readable()) {
JLS	0:e3b298a12eea	243	temp = _cmd.getc();
JLS	0:e3b298a12eea	244	response[resp++] = (char)temp;
JLS	0:e3b298a12eea	245	}
JLS	0:e3b298a12eea	246	switch (resp) {
JLS	0:e3b298a12eea	247	case 5 : // if OK populate data and return 1
JLS	0:e3b298a12eea	248	type = response[0];
JLS	0:e3b298a12eea	249	revision = response[1];
JLS	0:e3b298a12eea	250	firmware = response[2];
JLS	0:e3b298a12eea	251	reserved1 = response[3];
JLS	0:e3b298a12eea	252	reserved2 = response[4];
JLS	0:e3b298a12eea	253	resp = 1;
JLS	0:e3b298a12eea	254	break;
JLS	0:e3b298a12eea	255	default :
JLS	0:e3b298a12eea	256	resp = 0; // else return 0
JLS	0:e3b298a12eea	257	break;
JLS	0:e3b298a12eea	258	}
JLS	0:e3b298a12eea	259	return resp;
JLS	0:e3b298a12eea	260	}
JLS	0:e3b298a12eea	261
JLS	0:e3b298a12eea	262	//****************************************************************************************************
JLS	0:e3b298a12eea	263	void TFT_4DGL :: background_color(int color) { // set screen background color
JLS	0:e3b298a12eea	264	char command[3]= ""; // input color is in 24bits like 0xRRGGBB
JLS	0:e3b298a12eea	265
JLS	0:e3b298a12eea	266	command[0] = BCKGDCOLOR;
JLS	0:e3b298a12eea	267
JLS	0:e3b298a12eea	268	int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS	0:e3b298a12eea	269	int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS	0:e3b298a12eea	270	int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS	0:e3b298a12eea	271
JLS	0:e3b298a12eea	272	command[1] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS	0:e3b298a12eea	273	command[2] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS	0:e3b298a12eea	274
JLS	0:e3b298a12eea	275	writeCOMMAND(command, 3);
JLS	0:e3b298a12eea	276	}
JLS	0:e3b298a12eea	277
JLS	0:e3b298a12eea	278	//****************************************************************************************************
JLS	0:e3b298a12eea	279	void TFT_4DGL :: display_control(char mode, char value) { // set screen mode to value
JLS	0:e3b298a12eea	280	char command[3]= "";
JLS	0:e3b298a12eea	281
JLS	0:e3b298a12eea	282	command[0] = DISPCONTROL;
JLS	0:e3b298a12eea	283	command[1] = mode;
JLS	0:e3b298a12eea	284	command[2] = value;
JLS	0:e3b298a12eea	285
JLS	0:e3b298a12eea	286	if (mode == ORIENTATION) {
JLS	0:e3b298a12eea	287	switch (value) {
JLS	0:e3b298a12eea	288	case LANDSCAPE :
JLS	0:e3b298a12eea	289	current_orientation = IS_LANDSCAPE;
JLS	0:e3b298a12eea	290	break;
JLS	0:e3b298a12eea	291	case LANDSCAPE_R :
JLS	0:e3b298a12eea	292	current_orientation = IS_LANDSCAPE;
JLS	0:e3b298a12eea	293	break;
JLS	0:e3b298a12eea	294	case PORTRAIT :
JLS	0:e3b298a12eea	295	current_orientation = IS_PORTRAIT;
JLS	0:e3b298a12eea	296	break;
JLS	0:e3b298a12eea	297	case PORTRAIT_R :
JLS	0:e3b298a12eea	298	current_orientation = IS_PORTRAIT;
JLS	0:e3b298a12eea	299	break;
JLS	0:e3b298a12eea	300	}
JLS	0:e3b298a12eea	301	set_font(current_font);
JLS	0:e3b298a12eea	302	}
JLS	0:e3b298a12eea	303	writeCOMMAND(command, 3);
JLS	0:e3b298a12eea	304
JLS	0:e3b298a12eea	305	}
JLS	0:e3b298a12eea	306
JLS	0:e3b298a12eea	307	//****************************************************************************************************
JLS	0:e3b298a12eea	308	void TFT_4DGL :: set_volume(char value) { // set sound volume to value
JLS	0:e3b298a12eea	309	char command[2]= "";
JLS	0:e3b298a12eea	310
JLS	0:e3b298a12eea	311	command[0] = SETVOLUME;
JLS	0:e3b298a12eea	312	command[1] = value;
JLS	0:e3b298a12eea	313
JLS	0:e3b298a12eea	314	writeCOMMAND(command, 2);
JLS	0:e3b298a12eea	315	}
JLS	0:e3b298a12eea	316
JLS	0:e3b298a12eea	317
JLS	0:e3b298a12eea	318	//******************************************************************************************************
JLS	0:e3b298a12eea	319	void TFT_4DGL :: getTOUCH(char command, int number, int x, int *y) { // read screen info and populate data
JLS	0:e3b298a12eea	320
JLS	0:e3b298a12eea	321	#if DEBUGMODE
JLS	0:e3b298a12eea	322	pc.printf("\n\r");
JLS	0:e3b298a12eea	323	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS	0:e3b298a12eea	324	#endif
JLS	0:e3b298a12eea	325	int i, temp = 0, resp = 0;
JLS	0:e3b298a12eea	326	char response[5] = "";
JLS	0:e3b298a12eea	327
JLS	0:e3b298a12eea	328	freeBUFFER();
JLS	0:e3b298a12eea	329
JLS	0:e3b298a12eea	330	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS	0:e3b298a12eea	331
JLS	0:e3b298a12eea	332	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS	0:e3b298a12eea	333
JLS	0:e3b298a12eea	334	while (_cmd.readable()) {
JLS	0:e3b298a12eea	335	temp = _cmd.getc();
JLS	0:e3b298a12eea	336	response[resp++] = (char)temp;
JLS	0:e3b298a12eea	337	}
JLS	0:e3b298a12eea	338
JLS	0:e3b298a12eea	339	#if DEBUGMODE
JLS	0:e3b298a12eea	340	pc.printf(" Answer received %d : 0x%02X 0x%02X 0x%02X 0x%02X\n\r", resp, response[0], response[1], response[2], response[3]);
JLS	0:e3b298a12eea	341	#endif
JLS	0:e3b298a12eea	342
JLS	0:e3b298a12eea	343	switch (resp) {
JLS	0:e3b298a12eea	344	case 4 : // if OK populate data
JLS	0:e3b298a12eea	345	x = ((response[0]<<8)+ response[1]) (response[0] != 0xFF);
JLS	0:e3b298a12eea	346	y = ((response[2]<<8)+ response[3]) (response[2] != 0xFF);
JLS	0:e3b298a12eea	347	break;
JLS	0:e3b298a12eea	348	default :
JLS	0:e3b298a12eea	349	*x = -1;
JLS	0:e3b298a12eea	350	*y = -1;
JLS	0:e3b298a12eea	351	break;
JLS	0:e3b298a12eea	352	}
JLS	0:e3b298a12eea	353
JLS	0:e3b298a12eea	354	#if DEBUGMODE
JLS	0:e3b298a12eea	355	pc.printf(" X,Y : %03d,%03d\n\r", x, y);
JLS	0:e3b298a12eea	356	#endif
JLS	0:e3b298a12eea	357	}
JLS	0:e3b298a12eea	358
JLS	0:e3b298a12eea	359	//******************************************************************************************************
JLS	0:e3b298a12eea	360	int TFT_4DGL :: getSTATUS(char *command, int number) { // read screen info and populate data
JLS	0:e3b298a12eea	361
JLS	0:e3b298a12eea	362	#if DEBUGMODE
JLS	0:e3b298a12eea	363	pc.printf("\n\r");
JLS	0:e3b298a12eea	364	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS	0:e3b298a12eea	365	#endif
JLS	0:e3b298a12eea	366
JLS	0:e3b298a12eea	367	int i, temp = 0, resp = 0;
JLS	0:e3b298a12eea	368	char response[5] = "";
JLS	0:e3b298a12eea	369
JLS	0:e3b298a12eea	370	freeBUFFER();
JLS	0:e3b298a12eea	371
JLS	0:e3b298a12eea	372	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS	0:e3b298a12eea	373
JLS	0:e3b298a12eea	374	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS	0:e3b298a12eea	375
JLS	0:e3b298a12eea	376	while (_cmd.readable()) {
JLS	0:e3b298a12eea	377	temp = _cmd.getc();
JLS	0:e3b298a12eea	378	response[resp++] = (char)temp;
JLS	0:e3b298a12eea	379	}
JLS	0:e3b298a12eea	380	switch (resp) {
JLS	0:e3b298a12eea	381	case 4 :
JLS	0:e3b298a12eea	382	resp = (int)response[1]; // if OK populate data
JLS	0:e3b298a12eea	383	break;
JLS	0:e3b298a12eea	384	default :
JLS	0:e3b298a12eea	385	resp = -1; // else return 0
JLS	0:e3b298a12eea	386	break;
JLS	0:e3b298a12eea	387	}
JLS	0:e3b298a12eea	388
JLS	0:e3b298a12eea	389	#if DEBUGMODE
JLS	0:e3b298a12eea	390	pc.printf(" Answer received : %d\n\r", resp);
JLS	0:e3b298a12eea	391	#endif
JLS	0:e3b298a12eea	392
JLS	0:e3b298a12eea	393	return resp;
JLS	0:e3b298a12eea	394	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	17 Jan 2011
Imports:	1
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	1

TFT_4DGL_main.cpp@0:e3b298a12eea, 2011-01-17 (annotated)

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