4DGLmbed - A program to display an image on the uLCD-32PT di…

Users » ms523 » Code » 4DGLmbed

Martin Smith / Mbed 2 deprecated 4DGLmbed

A program to display an image on the uLCD-32PT display by 4D Systems

TFT_4DGL_main.cpp@0:fc4f3879f0e1, 2010-10-03 (annotated)

Committer:: ms523
Date:: Sun Oct 03 15:47:25 2010 +0000
Revision:: 0:fc4f3879f0e1

Who changed what in which revision?

User	Revision	Line number	New contents of line
ms523	0:fc4f3879f0e1	1	//
ms523	0:fc4f3879f0e1	2	// TFT_4DGL is a class to drive 4D Systems TFT touch screens
ms523	0:fc4f3879f0e1	3	//
ms523	0:fc4f3879f0e1	4	// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
ms523	0:fc4f3879f0e1	5	//
ms523	0:fc4f3879f0e1	6	// TFT_4DGL is free software: you can redistribute it and/or modify
ms523	0:fc4f3879f0e1	7	// it under the terms of the GNU General Public License as published by
ms523	0:fc4f3879f0e1	8	// the Free Software Foundation, either version 3 of the License, or
ms523	0:fc4f3879f0e1	9	// (at your option) any later version.
ms523	0:fc4f3879f0e1	10	//
ms523	0:fc4f3879f0e1	11	// TFT_4DGL is distributed in the hope that it will be useful,
ms523	0:fc4f3879f0e1	12	// but WITHOUT ANY WARRANTY; without even the implied warranty of
ms523	0:fc4f3879f0e1	13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ms523	0:fc4f3879f0e1	14	// GNU General Public License for more details.
ms523	0:fc4f3879f0e1	15	//
ms523	0:fc4f3879f0e1	16	// You should have received a copy of the GNU General Public License
ms523	0:fc4f3879f0e1	17	// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
ms523	0:fc4f3879f0e1	18
ms523	0:fc4f3879f0e1	19	#include "mbed.h"
ms523	0:fc4f3879f0e1	20	#include "TFT_4DGL.h"
ms523	0:fc4f3879f0e1	21
ms523	0:fc4f3879f0e1	22	Serial pc(USBTX,USBRX);
ms523	0:fc4f3879f0e1	23	DigitalOut led1(LED1), led2(LED2);
ms523	0:fc4f3879f0e1	24
ms523	0:fc4f3879f0e1	25	//******************************************************************************************************
ms523	0:fc4f3879f0e1	26	TFT_4DGL :: TFT_4DGL(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx), _rst(rst) { // Constructor
ms523	0:fc4f3879f0e1	27
ms523	0:fc4f3879f0e1	28	#if DEBUGMODE
ms523	0:fc4f3879f0e1	29	pc.baud(115200);
ms523	0:fc4f3879f0e1	30
ms523	0:fc4f3879f0e1	31	pc.printf("\n\n\n");
ms523	0:fc4f3879f0e1	32	pc.printf("********************\n\r");
ms523	0:fc4f3879f0e1	33	pc.printf("TFT_4DGL CONSTRUCTOR\n\r");
ms523	0:fc4f3879f0e1	34	pc.printf("********************\n\r");
ms523	0:fc4f3879f0e1	35	#endif
ms523	0:fc4f3879f0e1	36
ms523	0:fc4f3879f0e1	37	_rst = 1; // put RESET pin to high to start TFT screen
ms523	0:fc4f3879f0e1	38
ms523	0:fc4f3879f0e1	39	reset();
ms523	0:fc4f3879f0e1	40	autobaud(); // send autobaud command
ms523	0:fc4f3879f0e1	41	baudrate(256000); // set the initial baudrate to 256kbps - fastest supported by uLCD-32PT
ms523	0:fc4f3879f0e1	42	cls(); // clear screen
ms523	0:fc4f3879f0e1	43
ms523	0:fc4f3879f0e1	44	current_col = 0; // initial cursor col
ms523	0:fc4f3879f0e1	45	current_row = 0; // initial cursor row
ms523	0:fc4f3879f0e1	46	current_color = WHITE; // initial text color
ms523	0:fc4f3879f0e1	47	current_orientation = IS_PORTRAIT; // initial screen orientation
ms523	0:fc4f3879f0e1	48
ms523	0:fc4f3879f0e1	49	set_font(FONT_5X7); // initial font
ms523	0:fc4f3879f0e1	50	text_mode(TRANSPARENT); // initial text mode
ms523	0:fc4f3879f0e1	51	display_control(0x06,0x00); // initial Image control new format
ms523	0:fc4f3879f0e1	52	}
ms523	0:fc4f3879f0e1	53
ms523	0:fc4f3879f0e1	54	//******************************************************************************************************
ms523	0:fc4f3879f0e1	55	void TFT_4DGL :: writeBYTE(char c) { // send a BYTE command to screen
ms523	0:fc4f3879f0e1	56
ms523	0:fc4f3879f0e1	57	_cmd.putc(c);
ms523	0:fc4f3879f0e1	58
ms523	0:fc4f3879f0e1	59	#if DEBUGMODE
ms523	0:fc4f3879f0e1	60	pc.printf(" Char sent : 0x%02X ",c);
ms523	0:fc4f3879f0e1	61	pc.putc(c);
ms523	0:fc4f3879f0e1	62	pc.printf(" \n\r");
ms523	0:fc4f3879f0e1	63	#endif
ms523	0:fc4f3879f0e1	64
ms523	0:fc4f3879f0e1	65	}
ms523	0:fc4f3879f0e1	66
ms523	0:fc4f3879f0e1	67	//******************************************************************************************************
ms523	0:fc4f3879f0e1	68	void TFT_4DGL :: freeBUFFER(void) { // Clear serial buffer before writing command
ms523	0:fc4f3879f0e1	69
ms523	0:fc4f3879f0e1	70	while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
ms523	0:fc4f3879f0e1	71	}
ms523	0:fc4f3879f0e1	72
ms523	0:fc4f3879f0e1	73	//******************************************************************************************************
ms523	0:fc4f3879f0e1	74	int TFT_4DGL :: writeCOMMAND(char *command, int number) { // send several BYTES making a command and return an answer
ms523	0:fc4f3879f0e1	75
ms523	0:fc4f3879f0e1	76	#if DEBUGMODE
ms523	0:fc4f3879f0e1	77	pc.printf("\n\r");
ms523	0:fc4f3879f0e1	78	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
ms523	0:fc4f3879f0e1	79	#endif
ms523	0:fc4f3879f0e1	80	int i, resp = 0;
ms523	0:fc4f3879f0e1	81	freeBUFFER();
ms523	0:fc4f3879f0e1	82
ms523	0:fc4f3879f0e1	83	for (i = 0; i < number; i++) writeBYTE(command[i]); // send command to serial port
ms523	0:fc4f3879f0e1	84
ms523	0:fc4f3879f0e1	85	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ms523	0:fc4f3879f0e1	86	if (_cmd.readable()) resp = _cmd.getc(); // read response if any
ms523	0:fc4f3879f0e1	87	switch (resp) {
ms523	0:fc4f3879f0e1	88	case ACK : // if OK return 1
ms523	0:fc4f3879f0e1	89	resp = 1;
ms523	0:fc4f3879f0e1	90	break;
ms523	0:fc4f3879f0e1	91	case NAK : // if NOK return -1
ms523	0:fc4f3879f0e1	92	resp = -1;
ms523	0:fc4f3879f0e1	93	break;
ms523	0:fc4f3879f0e1	94	default :
ms523	0:fc4f3879f0e1	95	resp = 0; // else return 0
ms523	0:fc4f3879f0e1	96	break;
ms523	0:fc4f3879f0e1	97	}
ms523	0:fc4f3879f0e1	98	#if DEBUGMODE
ms523	0:fc4f3879f0e1	99	pc.printf(" Answer received : %d\n\r",resp);
ms523	0:fc4f3879f0e1	100	#endif
ms523	0:fc4f3879f0e1	101
ms523	0:fc4f3879f0e1	102	return resp;
ms523	0:fc4f3879f0e1	103	}
ms523	0:fc4f3879f0e1	104
ms523	0:fc4f3879f0e1	105	//**************************************************************************
ms523	0:fc4f3879f0e1	106	void TFT_4DGL :: reset() { // Reset Screen
ms523	0:fc4f3879f0e1	107
ms523	0:fc4f3879f0e1	108	_rst = 0; // put RESET pin to low
ms523	0:fc4f3879f0e1	109	wait_ms(TEMPO); // wait a few milliseconds for command reception
ms523	0:fc4f3879f0e1	110	_rst = 1; // put RESET back to high
ms523	0:fc4f3879f0e1	111	wait(3); // wait 3s for screen to restart
ms523	0:fc4f3879f0e1	112
ms523	0:fc4f3879f0e1	113	freeBUFFER(); // clean buffer from possible garbage
ms523	0:fc4f3879f0e1	114	}
ms523	0:fc4f3879f0e1	115
ms523	0:fc4f3879f0e1	116	//**************************************************************************
ms523	0:fc4f3879f0e1	117	void TFT_4DGL :: autobaud() { // send AutoBaud command (9600)
ms523	0:fc4f3879f0e1	118	char command[1] = "";
ms523	0:fc4f3879f0e1	119	command[0] = AUTOBAUD;
ms523	0:fc4f3879f0e1	120	writeCOMMAND(command, 1);
ms523	0:fc4f3879f0e1	121	}
ms523	0:fc4f3879f0e1	122
ms523	0:fc4f3879f0e1	123	//**************************************************************************
ms523	0:fc4f3879f0e1	124	void TFT_4DGL :: cls() { // clear screen
ms523	0:fc4f3879f0e1	125	char command[1] = "";
ms523	0:fc4f3879f0e1	126	command[0] = CLS;
ms523	0:fc4f3879f0e1	127	writeCOMMAND(command, 1);
ms523	0:fc4f3879f0e1	128	}
ms523	0:fc4f3879f0e1	129
ms523	0:fc4f3879f0e1	130	//**************************************************************************
ms523	0:fc4f3879f0e1	131	void TFT_4DGL :: version() { // get API version
ms523	0:fc4f3879f0e1	132	char command[2] = "";
ms523	0:fc4f3879f0e1	133	command[0] = VERSION;
ms523	0:fc4f3879f0e1	134	command[1] = OFF;
ms523	0:fc4f3879f0e1	135	readVERSION(command, 2);
ms523	0:fc4f3879f0e1	136	}
ms523	0:fc4f3879f0e1	137
ms523	0:fc4f3879f0e1	138	//**************************************************************************
ms523	0:fc4f3879f0e1	139	void TFT_4DGL :: baudrate(long speed) { // set screen baud rate
ms523	0:fc4f3879f0e1	140	char command[2]= "";
ms523	0:fc4f3879f0e1	141	command[0] = BAUDRATE;
ms523	0:fc4f3879f0e1	142	switch (speed) {
ms523	0:fc4f3879f0e1	143	case 110 :
ms523	0:fc4f3879f0e1	144	command[1] = BAUD_110;
ms523	0:fc4f3879f0e1	145	break;
ms523	0:fc4f3879f0e1	146	case 300 :
ms523	0:fc4f3879f0e1	147	command[1] = BAUD_300;
ms523	0:fc4f3879f0e1	148	break;
ms523	0:fc4f3879f0e1	149	case 600 :
ms523	0:fc4f3879f0e1	150	command[1] = BAUD_600;
ms523	0:fc4f3879f0e1	151	break;
ms523	0:fc4f3879f0e1	152	case 1200 :
ms523	0:fc4f3879f0e1	153	command[1] = BAUD_1200;
ms523	0:fc4f3879f0e1	154	break;
ms523	0:fc4f3879f0e1	155	case 2400 :
ms523	0:fc4f3879f0e1	156	command[1] = BAUD_2400;
ms523	0:fc4f3879f0e1	157	break;
ms523	0:fc4f3879f0e1	158	case 4800 :
ms523	0:fc4f3879f0e1	159	command[1] = BAUD_4800;
ms523	0:fc4f3879f0e1	160	break;
ms523	0:fc4f3879f0e1	161	case 9600 :
ms523	0:fc4f3879f0e1	162	command[1] = BAUD_9600;
ms523	0:fc4f3879f0e1	163	break;
ms523	0:fc4f3879f0e1	164	case 14400 :
ms523	0:fc4f3879f0e1	165	command[1] = BAUD_14400;
ms523	0:fc4f3879f0e1	166	break;
ms523	0:fc4f3879f0e1	167	case 19200 :
ms523	0:fc4f3879f0e1	168	command[1] = BAUD_19200;
ms523	0:fc4f3879f0e1	169	break;
ms523	0:fc4f3879f0e1	170	case 31250 :
ms523	0:fc4f3879f0e1	171	command[1] = BAUD_31250;
ms523	0:fc4f3879f0e1	172	break;
ms523	0:fc4f3879f0e1	173	case 38400 :
ms523	0:fc4f3879f0e1	174	command[1] = BAUD_38400;
ms523	0:fc4f3879f0e1	175	break;
ms523	0:fc4f3879f0e1	176	case 56000 :
ms523	0:fc4f3879f0e1	177	command[1] = BAUD_56000;
ms523	0:fc4f3879f0e1	178	break;
ms523	0:fc4f3879f0e1	179	case 57600 :
ms523	0:fc4f3879f0e1	180	command[1] = BAUD_57600;
ms523	0:fc4f3879f0e1	181	break;
ms523	0:fc4f3879f0e1	182	case 115200 :
ms523	0:fc4f3879f0e1	183	command[1] = BAUD_115200;
ms523	0:fc4f3879f0e1	184	break;
ms523	0:fc4f3879f0e1	185	case 128000 :
ms523	0:fc4f3879f0e1	186	command[1] = BAUD_128000;
ms523	0:fc4f3879f0e1	187	break;
ms523	0:fc4f3879f0e1	188	case 256000 :
ms523	0:fc4f3879f0e1	189	command[1] = BAUD_256000;
ms523	0:fc4f3879f0e1	190	break;
ms523	0:fc4f3879f0e1	191	default :
ms523	0:fc4f3879f0e1	192	command[1] = BAUD_9600;
ms523	0:fc4f3879f0e1	193	speed = 9600;
ms523	0:fc4f3879f0e1	194	break;
ms523	0:fc4f3879f0e1	195	}
ms523	0:fc4f3879f0e1	196
ms523	0:fc4f3879f0e1	197	#if DEBUGMODE
ms523	0:fc4f3879f0e1	198	pc.printf("\n\r");
ms523	0:fc4f3879f0e1	199	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
ms523	0:fc4f3879f0e1	200	#endif
ms523	0:fc4f3879f0e1	201
ms523	0:fc4f3879f0e1	202	int i, resp = 0;
ms523	0:fc4f3879f0e1	203	freeBUFFER();
ms523	0:fc4f3879f0e1	204
ms523	0:fc4f3879f0e1	205	if(speed==256000)
ms523	0:fc4f3879f0e1	206	speed=281000; //If baud rate is 256K comm at 281k - as instructed by 4DGL
ms523	0:fc4f3879f0e1	207
ms523	0:fc4f3879f0e1	208	for (i = 0; i <2; i++) writeBYTE(command[i]); // send command to serial port
ms523	0:fc4f3879f0e1	209	_cmd.baud(speed); // set mbed to same speed
ms523	0:fc4f3879f0e1	210
ms523	0:fc4f3879f0e1	211	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ms523	0:fc4f3879f0e1	212
ms523	0:fc4f3879f0e1	213	if (_cmd.readable()) resp = _cmd.getc(); // read response if any
ms523	0:fc4f3879f0e1	214	switch (resp) {
ms523	0:fc4f3879f0e1	215	case ACK : // if OK return 1
ms523	0:fc4f3879f0e1	216	resp = 1;
ms523	0:fc4f3879f0e1	217	break;
ms523	0:fc4f3879f0e1	218	case NAK : // if NOK return -1
ms523	0:fc4f3879f0e1	219	resp = -1;
ms523	0:fc4f3879f0e1	220	break;
ms523	0:fc4f3879f0e1	221	default :
ms523	0:fc4f3879f0e1	222	resp = 0; // else return 0
ms523	0:fc4f3879f0e1	223	break;
ms523	0:fc4f3879f0e1	224	}
ms523	0:fc4f3879f0e1	225	#if DEBUGMODE
ms523	0:fc4f3879f0e1	226	pc.printf(" Baudrate reply received : %d\n\r",resp);
ms523	0:fc4f3879f0e1	227	#endif
ms523	0:fc4f3879f0e1	228	}
ms523	0:fc4f3879f0e1	229
ms523	0:fc4f3879f0e1	230	//******************************************************************************************************
ms523	0:fc4f3879f0e1	231	int TFT_4DGL :: readVERSION(char *command, int number) { // read screen info and populate data
ms523	0:fc4f3879f0e1	232
ms523	0:fc4f3879f0e1	233	int i, temp = 0, resp = 0;
ms523	0:fc4f3879f0e1	234	char response[5] = "";
ms523	0:fc4f3879f0e1	235
ms523	0:fc4f3879f0e1	236	freeBUFFER();
ms523	0:fc4f3879f0e1	237
ms523	0:fc4f3879f0e1	238	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
ms523	0:fc4f3879f0e1	239
ms523	0:fc4f3879f0e1	240	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ms523	0:fc4f3879f0e1	241
ms523	0:fc4f3879f0e1	242	while (_cmd.readable()) {
ms523	0:fc4f3879f0e1	243	temp = _cmd.getc();
ms523	0:fc4f3879f0e1	244	response[resp++] = (char)temp;
ms523	0:fc4f3879f0e1	245	}
ms523	0:fc4f3879f0e1	246	switch (resp) {
ms523	0:fc4f3879f0e1	247	case 5 : // if OK populate data and return 1
ms523	0:fc4f3879f0e1	248	type = response[0];
ms523	0:fc4f3879f0e1	249	revision = response[1];
ms523	0:fc4f3879f0e1	250	firmware = response[2];
ms523	0:fc4f3879f0e1	251	reserved1 = response[3];
ms523	0:fc4f3879f0e1	252	reserved2 = response[4];
ms523	0:fc4f3879f0e1	253	resp = 1;
ms523	0:fc4f3879f0e1	254	break;
ms523	0:fc4f3879f0e1	255	default :
ms523	0:fc4f3879f0e1	256	resp = 0; // else return 0
ms523	0:fc4f3879f0e1	257	break;
ms523	0:fc4f3879f0e1	258	}
ms523	0:fc4f3879f0e1	259	return resp;
ms523	0:fc4f3879f0e1	260	}
ms523	0:fc4f3879f0e1	261
ms523	0:fc4f3879f0e1	262	//****************************************************************************************************
ms523	0:fc4f3879f0e1	263	void TFT_4DGL :: background_color(int color) { // set screen background color
ms523	0:fc4f3879f0e1	264	char command[3]= ""; // input color is in 24bits like 0xRRGGBB
ms523	0:fc4f3879f0e1	265
ms523	0:fc4f3879f0e1	266	command[0] = BCKGDCOLOR;
ms523	0:fc4f3879f0e1	267
ms523	0:fc4f3879f0e1	268	int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
ms523	0:fc4f3879f0e1	269	int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
ms523	0:fc4f3879f0e1	270	int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
ms523	0:fc4f3879f0e1	271
ms523	0:fc4f3879f0e1	272	command[1] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
ms523	0:fc4f3879f0e1	273	command[2] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
ms523	0:fc4f3879f0e1	274
ms523	0:fc4f3879f0e1	275	writeCOMMAND(command, 3);
ms523	0:fc4f3879f0e1	276	}
ms523	0:fc4f3879f0e1	277
ms523	0:fc4f3879f0e1	278	//****************************************************************************************************
ms523	0:fc4f3879f0e1	279	void TFT_4DGL :: display_control(char mode, char value) { // set screen mode to value
ms523	0:fc4f3879f0e1	280	char command[3]= "";
ms523	0:fc4f3879f0e1	281
ms523	0:fc4f3879f0e1	282	command[0] = DISPCONTROL;
ms523	0:fc4f3879f0e1	283	command[1] = mode;
ms523	0:fc4f3879f0e1	284	command[2] = value;
ms523	0:fc4f3879f0e1	285
ms523	0:fc4f3879f0e1	286	if (mode == ORIENTATION) {
ms523	0:fc4f3879f0e1	287	switch (value) {
ms523	0:fc4f3879f0e1	288	case LANDSCAPE :
ms523	0:fc4f3879f0e1	289	current_orientation = IS_LANDSCAPE;
ms523	0:fc4f3879f0e1	290	break;
ms523	0:fc4f3879f0e1	291	case LANDSCAPE_R :
ms523	0:fc4f3879f0e1	292	current_orientation = IS_LANDSCAPE;
ms523	0:fc4f3879f0e1	293	break;
ms523	0:fc4f3879f0e1	294	case PORTRAIT :
ms523	0:fc4f3879f0e1	295	current_orientation = IS_PORTRAIT;
ms523	0:fc4f3879f0e1	296	break;
ms523	0:fc4f3879f0e1	297	case PORTRAIT_R :
ms523	0:fc4f3879f0e1	298	current_orientation = IS_PORTRAIT;
ms523	0:fc4f3879f0e1	299	break;
ms523	0:fc4f3879f0e1	300	}
ms523	0:fc4f3879f0e1	301	set_font(current_font);
ms523	0:fc4f3879f0e1	302	}
ms523	0:fc4f3879f0e1	303	writeCOMMAND(command, 3);
ms523	0:fc4f3879f0e1	304
ms523	0:fc4f3879f0e1	305	}
ms523	0:fc4f3879f0e1	306
ms523	0:fc4f3879f0e1	307	//****************************************************************************************************
ms523	0:fc4f3879f0e1	308	void TFT_4DGL :: set_volume(char value) { // set sound volume to value
ms523	0:fc4f3879f0e1	309	char command[2]= "";
ms523	0:fc4f3879f0e1	310
ms523	0:fc4f3879f0e1	311	command[0] = SETVOLUME;
ms523	0:fc4f3879f0e1	312	command[1] = value;
ms523	0:fc4f3879f0e1	313
ms523	0:fc4f3879f0e1	314	writeCOMMAND(command, 2);
ms523	0:fc4f3879f0e1	315	}
ms523	0:fc4f3879f0e1	316
ms523	0:fc4f3879f0e1	317
ms523	0:fc4f3879f0e1	318	//******************************************************************************************************
ms523	0:fc4f3879f0e1	319	void TFT_4DGL :: getTOUCH(char command, int number, int x, int *y) { // read screen info and populate data
ms523	0:fc4f3879f0e1	320
ms523	0:fc4f3879f0e1	321	#if DEBUGMODE
ms523	0:fc4f3879f0e1	322	pc.printf("\n\r");
ms523	0:fc4f3879f0e1	323	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
ms523	0:fc4f3879f0e1	324	#endif
ms523	0:fc4f3879f0e1	325	int i, temp = 0, resp = 0;
ms523	0:fc4f3879f0e1	326	char response[5] = "";
ms523	0:fc4f3879f0e1	327
ms523	0:fc4f3879f0e1	328	freeBUFFER();
ms523	0:fc4f3879f0e1	329
ms523	0:fc4f3879f0e1	330	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
ms523	0:fc4f3879f0e1	331
ms523	0:fc4f3879f0e1	332	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ms523	0:fc4f3879f0e1	333
ms523	0:fc4f3879f0e1	334	while (_cmd.readable()) {
ms523	0:fc4f3879f0e1	335	temp = _cmd.getc();
ms523	0:fc4f3879f0e1	336	response[resp++] = (char)temp;
ms523	0:fc4f3879f0e1	337	}
ms523	0:fc4f3879f0e1	338
ms523	0:fc4f3879f0e1	339	#if DEBUGMODE
ms523	0:fc4f3879f0e1	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]);
ms523	0:fc4f3879f0e1	341	#endif
ms523	0:fc4f3879f0e1	342
ms523	0:fc4f3879f0e1	343	switch (resp) {
ms523	0:fc4f3879f0e1	344	case 4 : // if OK populate data
ms523	0:fc4f3879f0e1	345	x = ((response[0]<<8)+ response[1]) (response[0] != 0xFF);
ms523	0:fc4f3879f0e1	346	y = ((response[2]<<8)+ response[3]) (response[2] != 0xFF);
ms523	0:fc4f3879f0e1	347	break;
ms523	0:fc4f3879f0e1	348	default :
ms523	0:fc4f3879f0e1	349	*x = -1;
ms523	0:fc4f3879f0e1	350	*y = -1;
ms523	0:fc4f3879f0e1	351	break;
ms523	0:fc4f3879f0e1	352	}
ms523	0:fc4f3879f0e1	353
ms523	0:fc4f3879f0e1	354	#if DEBUGMODE
ms523	0:fc4f3879f0e1	355	pc.printf(" X,Y : %03d,%03d\n\r", x, y);
ms523	0:fc4f3879f0e1	356	#endif
ms523	0:fc4f3879f0e1	357	}
ms523	0:fc4f3879f0e1	358
ms523	0:fc4f3879f0e1	359	//******************************************************************************************************
ms523	0:fc4f3879f0e1	360	int TFT_4DGL :: getSTATUS(char *command, int number) { // read screen info and populate data
ms523	0:fc4f3879f0e1	361
ms523	0:fc4f3879f0e1	362	#if DEBUGMODE
ms523	0:fc4f3879f0e1	363	pc.printf("\n\r");
ms523	0:fc4f3879f0e1	364	pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
ms523	0:fc4f3879f0e1	365	#endif
ms523	0:fc4f3879f0e1	366
ms523	0:fc4f3879f0e1	367	int i, temp = 0, resp = 0;
ms523	0:fc4f3879f0e1	368	char response[5] = "";
ms523	0:fc4f3879f0e1	369
ms523	0:fc4f3879f0e1	370	freeBUFFER();
ms523	0:fc4f3879f0e1	371
ms523	0:fc4f3879f0e1	372	for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
ms523	0:fc4f3879f0e1	373
ms523	0:fc4f3879f0e1	374	while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ms523	0:fc4f3879f0e1	375
ms523	0:fc4f3879f0e1	376	while (_cmd.readable()) {
ms523	0:fc4f3879f0e1	377	temp = _cmd.getc();
ms523	0:fc4f3879f0e1	378	response[resp++] = (char)temp;
ms523	0:fc4f3879f0e1	379	}
ms523	0:fc4f3879f0e1	380	switch (resp) {
ms523	0:fc4f3879f0e1	381	case 4 :
ms523	0:fc4f3879f0e1	382	resp = (int)response[1]; // if OK populate data
ms523	0:fc4f3879f0e1	383	break;
ms523	0:fc4f3879f0e1	384	default :
ms523	0:fc4f3879f0e1	385	resp = -1; // else return 0
ms523	0:fc4f3879f0e1	386	break;
ms523	0:fc4f3879f0e1	387	}
ms523	0:fc4f3879f0e1	388
ms523	0:fc4f3879f0e1	389	#if DEBUGMODE
ms523	0:fc4f3879f0e1	390	pc.printf(" Answer received : %d\n\r", resp);
ms523	0:fc4f3879f0e1	391	#endif
ms523	0:fc4f3879f0e1	392
ms523	0:fc4f3879f0e1	393	return resp;
ms523	0:fc4f3879f0e1	394	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	03 Oct 2010
Imports:	89
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	2

TFT_4DGL_main.cpp@0:fc4f3879f0e1, 2010-10-03 (annotated)

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