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Dependencies:   mbed

TFT_4DGL_main.cpp@1:2dcd2355ae5e, 2010-12-26 (annotated)

Committer:
JLS
Date:
Sun Dec 26 19:18:09 2010 +0000
Revision:
1:2dcd2355ae5e
updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JLS 1:2dcd2355ae5e 1 //
JLS 1:2dcd2355ae5e 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
JLS 1:2dcd2355ae5e 3 //
JLS 1:2dcd2355ae5e 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
JLS 1:2dcd2355ae5e 5 //
JLS 1:2dcd2355ae5e 6 // TFT_4DGL is free software: you can redistribute it and/or modify
JLS 1:2dcd2355ae5e 7 // it under the terms of the GNU General Public License as published by
JLS 1:2dcd2355ae5e 8 // the Free Software Foundation, either version 3 of the License, or
JLS 1:2dcd2355ae5e 9 // (at your option) any later version.
JLS 1:2dcd2355ae5e 10 //
JLS 1:2dcd2355ae5e 11 // TFT_4DGL is distributed in the hope that it will be useful,
JLS 1:2dcd2355ae5e 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
JLS 1:2dcd2355ae5e 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
JLS 1:2dcd2355ae5e 14 // GNU General Public License for more details.
JLS 1:2dcd2355ae5e 15 //
JLS 1:2dcd2355ae5e 16 // You should have received a copy of the GNU General Public License
JLS 1:2dcd2355ae5e 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
JLS 1:2dcd2355ae5e 18
JLS 1:2dcd2355ae5e 19 #include "mbed.h"
JLS 1:2dcd2355ae5e 20 #include "TFT_4DGL.h"
JLS 1:2dcd2355ae5e 21
JLS 1:2dcd2355ae5e 22 Serial pc(USBTX,USBRX);
JLS 1:2dcd2355ae5e 23 //DigitalOut led1(LED1), led2(LED2);
JLS 1:2dcd2355ae5e 24
JLS 1:2dcd2355ae5e 25 //******************************************************************************************************
JLS 1:2dcd2355ae5e 26 TFT_4DGL :: TFT_4DGL(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx), _rst(rst) { // Constructor
JLS 1:2dcd2355ae5e 27
JLS 1:2dcd2355ae5e 28 #if DEBUGMODE
JLS 1:2dcd2355ae5e 29 pc.baud(115200);
JLS 1:2dcd2355ae5e 30
JLS 1:2dcd2355ae5e 31 pc.printf("\n\n\n");
JLS 1:2dcd2355ae5e 32 pc.printf("********************\n\r");
JLS 1:2dcd2355ae5e 33 pc.printf("TFT_4DGL CONSTRUCTOR\n\r");
JLS 1:2dcd2355ae5e 34 pc.printf("********************\n\r");
JLS 1:2dcd2355ae5e 35 #endif
JLS 1:2dcd2355ae5e 36
JLS 1:2dcd2355ae5e 37 _rst = 1; // put RESET pin to high to start TFT screen
JLS 1:2dcd2355ae5e 38
JLS 1:2dcd2355ae5e 39 reset();
JLS 1:2dcd2355ae5e 40 autobaud(); // send autobaud command
JLS 1:2dcd2355ae5e 41 baudrate(256000); // set the initial baudrate to 256kbps - fastest supported by uLCD-32PT
JLS 1:2dcd2355ae5e 42 cls(); // clear screen
JLS 1:2dcd2355ae5e 43
JLS 1:2dcd2355ae5e 44 current_col = 0; // initial cursor col
JLS 1:2dcd2355ae5e 45 current_row = 0; // initial cursor row
JLS 1:2dcd2355ae5e 46 current_color = WHITE; // initial text color
JLS 1:2dcd2355ae5e 47 current_orientation = IS_PORTRAIT; // initial screen orientation
JLS 1:2dcd2355ae5e 48
JLS 1:2dcd2355ae5e 49 set_font(FONT_5X7); // initial font
JLS 1:2dcd2355ae5e 50 text_mode(TRANSPARENT); // initial text mode
JLS 1:2dcd2355ae5e 51 display_control(0x06,0x00); // initial Image control new format
JLS 1:2dcd2355ae5e 52 }
JLS 1:2dcd2355ae5e 53
JLS 1:2dcd2355ae5e 54 //******************************************************************************************************
JLS 1:2dcd2355ae5e 55 void TFT_4DGL :: writeBYTE(char c) { // send a BYTE command to screen
JLS 1:2dcd2355ae5e 56
JLS 1:2dcd2355ae5e 57 _cmd.putc(c);
JLS 1:2dcd2355ae5e 58
JLS 1:2dcd2355ae5e 59 #if DEBUGMODE
JLS 1:2dcd2355ae5e 60 pc.printf(" Char sent : 0x%02X ",c);
JLS 1:2dcd2355ae5e 61 pc.putc(c);
JLS 1:2dcd2355ae5e 62 pc.printf(" \n\r");
JLS 1:2dcd2355ae5e 63 #endif
JLS 1:2dcd2355ae5e 64
JLS 1:2dcd2355ae5e 65 }
JLS 1:2dcd2355ae5e 66
JLS 1:2dcd2355ae5e 67 //******************************************************************************************************
JLS 1:2dcd2355ae5e 68 void TFT_4DGL :: freeBUFFER(void) { // Clear serial buffer before writing command
JLS 1:2dcd2355ae5e 69
JLS 1:2dcd2355ae5e 70 while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
JLS 1:2dcd2355ae5e 71 }
JLS 1:2dcd2355ae5e 72
JLS 1:2dcd2355ae5e 73 //******************************************************************************************************
JLS 1:2dcd2355ae5e 74 int TFT_4DGL :: writeCOMMAND(char *command, int number) { // send several BYTES making a command and return an answer
JLS 1:2dcd2355ae5e 75
JLS 1:2dcd2355ae5e 76 #if DEBUGMODE
JLS 1:2dcd2355ae5e 77 pc.printf("\n\r");
JLS 1:2dcd2355ae5e 78 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:2dcd2355ae5e 79 #endif
JLS 1:2dcd2355ae5e 80 int i, resp = 0;
JLS 1:2dcd2355ae5e 81 freeBUFFER();
JLS 1:2dcd2355ae5e 82
JLS 1:2dcd2355ae5e 83 for (i = 0; i < number; i++) writeBYTE(command[i]); // send command to serial port
JLS 1:2dcd2355ae5e 84
JLS 1:2dcd2355ae5e 85 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:2dcd2355ae5e 86 if (_cmd.readable()) resp = _cmd.getc(); // read response if any
JLS 1:2dcd2355ae5e 87 switch (resp) {
JLS 1:2dcd2355ae5e 88 case ACK : // if OK return 1
JLS 1:2dcd2355ae5e 89 resp = 1;
JLS 1:2dcd2355ae5e 90 break;
JLS 1:2dcd2355ae5e 91 case NAK : // if NOK return -1
JLS 1:2dcd2355ae5e 92 resp = -1;
JLS 1:2dcd2355ae5e 93 break;
JLS 1:2dcd2355ae5e 94 default :
JLS 1:2dcd2355ae5e 95 resp = 0; // else return 0
JLS 1:2dcd2355ae5e 96 break;
JLS 1:2dcd2355ae5e 97 }
JLS 1:2dcd2355ae5e 98 #if DEBUGMODE
JLS 1:2dcd2355ae5e 99 pc.printf(" Answer received : %d\n\r",resp);
JLS 1:2dcd2355ae5e 100 #endif
JLS 1:2dcd2355ae5e 101
JLS 1:2dcd2355ae5e 102 return resp;
JLS 1:2dcd2355ae5e 103 }
JLS 1:2dcd2355ae5e 104
JLS 1:2dcd2355ae5e 105 //**************************************************************************
JLS 1:2dcd2355ae5e 106 void TFT_4DGL :: reset() { // Reset Screen
JLS 1:2dcd2355ae5e 107
JLS 1:2dcd2355ae5e 108 _rst = 0; // put RESET pin to low
JLS 1:2dcd2355ae5e 109 wait_ms(TEMPO); // wait a few milliseconds for command reception
JLS 1:2dcd2355ae5e 110 _rst = 1; // put RESET back to high
JLS 1:2dcd2355ae5e 111 wait(3); // wait 3s for screen to restart
JLS 1:2dcd2355ae5e 112
JLS 1:2dcd2355ae5e 113 freeBUFFER(); // clean buffer from possible garbage
JLS 1:2dcd2355ae5e 114 }
JLS 1:2dcd2355ae5e 115
JLS 1:2dcd2355ae5e 116 //**************************************************************************
JLS 1:2dcd2355ae5e 117 void TFT_4DGL :: autobaud() { // send AutoBaud command (9600)
JLS 1:2dcd2355ae5e 118 char command[1] = "";
JLS 1:2dcd2355ae5e 119 command[0] = AUTOBAUD;
JLS 1:2dcd2355ae5e 120 writeCOMMAND(command, 1);
JLS 1:2dcd2355ae5e 121 }
JLS 1:2dcd2355ae5e 122
JLS 1:2dcd2355ae5e 123 //**************************************************************************
JLS 1:2dcd2355ae5e 124 void TFT_4DGL :: cls() { // clear screen
JLS 1:2dcd2355ae5e 125 char command[1] = "";
JLS 1:2dcd2355ae5e 126 command[0] = CLS;
JLS 1:2dcd2355ae5e 127 writeCOMMAND(command, 1);
JLS 1:2dcd2355ae5e 128 }
JLS 1:2dcd2355ae5e 129
JLS 1:2dcd2355ae5e 130 //**************************************************************************
JLS 1:2dcd2355ae5e 131 void TFT_4DGL :: version() { // get API version
JLS 1:2dcd2355ae5e 132 char command[2] = "";
JLS 1:2dcd2355ae5e 133 command[0] = VERSION;
JLS 1:2dcd2355ae5e 134 command[1] = OFF;
JLS 1:2dcd2355ae5e 135 readVERSION(command, 2);
JLS 1:2dcd2355ae5e 136 }
JLS 1:2dcd2355ae5e 137
JLS 1:2dcd2355ae5e 138 //**************************************************************************
JLS 1:2dcd2355ae5e 139 void TFT_4DGL :: baudrate(long speed) { // set screen baud rate
JLS 1:2dcd2355ae5e 140 char command[2]= "";
JLS 1:2dcd2355ae5e 141 command[0] = BAUDRATE;
JLS 1:2dcd2355ae5e 142 switch (speed) {
JLS 1:2dcd2355ae5e 143 case 110 :
JLS 1:2dcd2355ae5e 144 command[1] = BAUD_110;
JLS 1:2dcd2355ae5e 145 break;
JLS 1:2dcd2355ae5e 146 case 300 :
JLS 1:2dcd2355ae5e 147 command[1] = BAUD_300;
JLS 1:2dcd2355ae5e 148 break;
JLS 1:2dcd2355ae5e 149 case 600 :
JLS 1:2dcd2355ae5e 150 command[1] = BAUD_600;
JLS 1:2dcd2355ae5e 151 break;
JLS 1:2dcd2355ae5e 152 case 1200 :
JLS 1:2dcd2355ae5e 153 command[1] = BAUD_1200;
JLS 1:2dcd2355ae5e 154 break;
JLS 1:2dcd2355ae5e 155 case 2400 :
JLS 1:2dcd2355ae5e 156 command[1] = BAUD_2400;
JLS 1:2dcd2355ae5e 157 break;
JLS 1:2dcd2355ae5e 158 case 4800 :
JLS 1:2dcd2355ae5e 159 command[1] = BAUD_4800;
JLS 1:2dcd2355ae5e 160 break;
JLS 1:2dcd2355ae5e 161 case 9600 :
JLS 1:2dcd2355ae5e 162 command[1] = BAUD_9600;
JLS 1:2dcd2355ae5e 163 break;
JLS 1:2dcd2355ae5e 164 case 14400 :
JLS 1:2dcd2355ae5e 165 command[1] = BAUD_14400;
JLS 1:2dcd2355ae5e 166 break;
JLS 1:2dcd2355ae5e 167 case 19200 :
JLS 1:2dcd2355ae5e 168 command[1] = BAUD_19200;
JLS 1:2dcd2355ae5e 169 break;
JLS 1:2dcd2355ae5e 170 case 31250 :
JLS 1:2dcd2355ae5e 171 command[1] = BAUD_31250;
JLS 1:2dcd2355ae5e 172 break;
JLS 1:2dcd2355ae5e 173 case 38400 :
JLS 1:2dcd2355ae5e 174 command[1] = BAUD_38400;
JLS 1:2dcd2355ae5e 175 break;
JLS 1:2dcd2355ae5e 176 case 56000 :
JLS 1:2dcd2355ae5e 177 command[1] = BAUD_56000;
JLS 1:2dcd2355ae5e 178 break;
JLS 1:2dcd2355ae5e 179 case 57600 :
JLS 1:2dcd2355ae5e 180 command[1] = BAUD_57600;
JLS 1:2dcd2355ae5e 181 break;
JLS 1:2dcd2355ae5e 182 case 115200 :
JLS 1:2dcd2355ae5e 183 command[1] = BAUD_115200;
JLS 1:2dcd2355ae5e 184 break;
JLS 1:2dcd2355ae5e 185 case 128000 :
JLS 1:2dcd2355ae5e 186 command[1] = BAUD_128000;
JLS 1:2dcd2355ae5e 187 break;
JLS 1:2dcd2355ae5e 188 case 256000 :
JLS 1:2dcd2355ae5e 189 command[1] = BAUD_256000;
JLS 1:2dcd2355ae5e 190 break;
JLS 1:2dcd2355ae5e 191 default :
JLS 1:2dcd2355ae5e 192 command[1] = BAUD_9600;
JLS 1:2dcd2355ae5e 193 speed = 9600;
JLS 1:2dcd2355ae5e 194 break;
JLS 1:2dcd2355ae5e 195 }
JLS 1:2dcd2355ae5e 196
JLS 1:2dcd2355ae5e 197 #if DEBUGMODE
JLS 1:2dcd2355ae5e 198 pc.printf("\n\r");
JLS 1:2dcd2355ae5e 199 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:2dcd2355ae5e 200 #endif
JLS 1:2dcd2355ae5e 201
JLS 1:2dcd2355ae5e 202 int i, resp = 0;
JLS 1:2dcd2355ae5e 203 freeBUFFER();
JLS 1:2dcd2355ae5e 204
JLS 1:2dcd2355ae5e 205 if(speed==256000)
JLS 1:2dcd2355ae5e 206 speed=281000; //If baud rate is 256K comm at 281k - as instructed by 4DGL
JLS 1:2dcd2355ae5e 207
JLS 1:2dcd2355ae5e 208 for (i = 0; i <2; i++) writeBYTE(command[i]); // send command to serial port
JLS 1:2dcd2355ae5e 209 _cmd.baud(speed); // set mbed to same speed
JLS 1:2dcd2355ae5e 210
JLS 1:2dcd2355ae5e 211 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:2dcd2355ae5e 212
JLS 1:2dcd2355ae5e 213 if (_cmd.readable()) resp = _cmd.getc(); // read response if any
JLS 1:2dcd2355ae5e 214 switch (resp) {
JLS 1:2dcd2355ae5e 215 case ACK : // if OK return 1
JLS 1:2dcd2355ae5e 216 resp = 1;
JLS 1:2dcd2355ae5e 217 break;
JLS 1:2dcd2355ae5e 218 case NAK : // if NOK return -1
JLS 1:2dcd2355ae5e 219 resp = -1;
JLS 1:2dcd2355ae5e 220 break;
JLS 1:2dcd2355ae5e 221 default :
JLS 1:2dcd2355ae5e 222 resp = 0; // else return 0
JLS 1:2dcd2355ae5e 223 break;
JLS 1:2dcd2355ae5e 224 }
JLS 1:2dcd2355ae5e 225 #if DEBUGMODE
JLS 1:2dcd2355ae5e 226 pc.printf(" Baudrate reply received : %d\n\r",resp);
JLS 1:2dcd2355ae5e 227 #endif
JLS 1:2dcd2355ae5e 228 }
JLS 1:2dcd2355ae5e 229
JLS 1:2dcd2355ae5e 230 //******************************************************************************************************
JLS 1:2dcd2355ae5e 231 int TFT_4DGL :: readVERSION(char *command, int number) { // read screen info and populate data
JLS 1:2dcd2355ae5e 232
JLS 1:2dcd2355ae5e 233 int i, temp = 0, resp = 0;
JLS 1:2dcd2355ae5e 234 char response[5] = "";
JLS 1:2dcd2355ae5e 235
JLS 1:2dcd2355ae5e 236 freeBUFFER();
JLS 1:2dcd2355ae5e 237
JLS 1:2dcd2355ae5e 238 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS 1:2dcd2355ae5e 239
JLS 1:2dcd2355ae5e 240 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:2dcd2355ae5e 241
JLS 1:2dcd2355ae5e 242 while (_cmd.readable()) {
JLS 1:2dcd2355ae5e 243 temp = _cmd.getc();
JLS 1:2dcd2355ae5e 244 response[resp++] = (char)temp;
JLS 1:2dcd2355ae5e 245 }
JLS 1:2dcd2355ae5e 246 switch (resp) {
JLS 1:2dcd2355ae5e 247 case 5 : // if OK populate data and return 1
JLS 1:2dcd2355ae5e 248 type = response[0];
JLS 1:2dcd2355ae5e 249 revision = response[1];
JLS 1:2dcd2355ae5e 250 firmware = response[2];
JLS 1:2dcd2355ae5e 251 reserved1 = response[3];
JLS 1:2dcd2355ae5e 252 reserved2 = response[4];
JLS 1:2dcd2355ae5e 253 resp = 1;
JLS 1:2dcd2355ae5e 254 break;
JLS 1:2dcd2355ae5e 255 default :
JLS 1:2dcd2355ae5e 256 resp = 0; // else return 0
JLS 1:2dcd2355ae5e 257 break;
JLS 1:2dcd2355ae5e 258 }
JLS 1:2dcd2355ae5e 259 return resp;
JLS 1:2dcd2355ae5e 260 }
JLS 1:2dcd2355ae5e 261
JLS 1:2dcd2355ae5e 262 //****************************************************************************************************
JLS 1:2dcd2355ae5e 263 void TFT_4DGL :: background_color(int color) { // set screen background color
JLS 1:2dcd2355ae5e 264 char command[3]= ""; // input color is in 24bits like 0xRRGGBB
JLS 1:2dcd2355ae5e 265
JLS 1:2dcd2355ae5e 266 command[0] = BCKGDCOLOR;
JLS 1:2dcd2355ae5e 267
JLS 1:2dcd2355ae5e 268 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 1:2dcd2355ae5e 269 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 1:2dcd2355ae5e 270 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 1:2dcd2355ae5e 271
JLS 1:2dcd2355ae5e 272 command[1] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 1:2dcd2355ae5e 273 command[2] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 1:2dcd2355ae5e 274
JLS 1:2dcd2355ae5e 275 writeCOMMAND(command, 3);
JLS 1:2dcd2355ae5e 276 }
JLS 1:2dcd2355ae5e 277
JLS 1:2dcd2355ae5e 278 //****************************************************************************************************
JLS 1:2dcd2355ae5e 279 void TFT_4DGL :: display_control(char mode, char value) { // set screen mode to value
JLS 1:2dcd2355ae5e 280 char command[3]= "";
JLS 1:2dcd2355ae5e 281
JLS 1:2dcd2355ae5e 282 command[0] = DISPCONTROL;
JLS 1:2dcd2355ae5e 283 command[1] = mode;
JLS 1:2dcd2355ae5e 284 command[2] = value;
JLS 1:2dcd2355ae5e 285
JLS 1:2dcd2355ae5e 286 if (mode == ORIENTATION) {
JLS 1:2dcd2355ae5e 287 switch (value) {
JLS 1:2dcd2355ae5e 288 case LANDSCAPE :
JLS 1:2dcd2355ae5e 289 current_orientation = IS_LANDSCAPE;
JLS 1:2dcd2355ae5e 290 break;
JLS 1:2dcd2355ae5e 291 case LANDSCAPE_R :
JLS 1:2dcd2355ae5e 292 current_orientation = IS_LANDSCAPE;
JLS 1:2dcd2355ae5e 293 break;
JLS 1:2dcd2355ae5e 294 case PORTRAIT :
JLS 1:2dcd2355ae5e 295 current_orientation = IS_PORTRAIT;
JLS 1:2dcd2355ae5e 296 break;
JLS 1:2dcd2355ae5e 297 case PORTRAIT_R :
JLS 1:2dcd2355ae5e 298 current_orientation = IS_PORTRAIT;
JLS 1:2dcd2355ae5e 299 break;
JLS 1:2dcd2355ae5e 300 }
JLS 1:2dcd2355ae5e 301 set_font(current_font);
JLS 1:2dcd2355ae5e 302 }
JLS 1:2dcd2355ae5e 303 writeCOMMAND(command, 3);
JLS 1:2dcd2355ae5e 304
JLS 1:2dcd2355ae5e 305 }
JLS 1:2dcd2355ae5e 306
JLS 1:2dcd2355ae5e 307 //****************************************************************************************************
JLS 1:2dcd2355ae5e 308 void TFT_4DGL :: set_volume(char value) { // set sound volume to value
JLS 1:2dcd2355ae5e 309 char command[2]= "";
JLS 1:2dcd2355ae5e 310
JLS 1:2dcd2355ae5e 311 command[0] = SETVOLUME;
JLS 1:2dcd2355ae5e 312 command[1] = value;
JLS 1:2dcd2355ae5e 313
JLS 1:2dcd2355ae5e 314 writeCOMMAND(command, 2);
JLS 1:2dcd2355ae5e 315 }
JLS 1:2dcd2355ae5e 316
JLS 1:2dcd2355ae5e 317
JLS 1:2dcd2355ae5e 318 //******************************************************************************************************
JLS 1:2dcd2355ae5e 319 void TFT_4DGL :: getTOUCH(char *command, int number, int *x, int *y) { // read screen info and populate data
JLS 1:2dcd2355ae5e 320
JLS 1:2dcd2355ae5e 321 #if DEBUGMODE
JLS 1:2dcd2355ae5e 322 pc.printf("\n\r");
JLS 1:2dcd2355ae5e 323 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:2dcd2355ae5e 324 #endif
JLS 1:2dcd2355ae5e 325 int i, temp = 0, resp = 0;
JLS 1:2dcd2355ae5e 326 char response[5] = "";
JLS 1:2dcd2355ae5e 327
JLS 1:2dcd2355ae5e 328 freeBUFFER();
JLS 1:2dcd2355ae5e 329
JLS 1:2dcd2355ae5e 330 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS 1:2dcd2355ae5e 331
JLS 1:2dcd2355ae5e 332 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:2dcd2355ae5e 333
JLS 1:2dcd2355ae5e 334 while (_cmd.readable()) {
JLS 1:2dcd2355ae5e 335 temp = _cmd.getc();
JLS 1:2dcd2355ae5e 336 response[resp++] = (char)temp;
JLS 1:2dcd2355ae5e 337 }
JLS 1:2dcd2355ae5e 338
JLS 1:2dcd2355ae5e 339 #if DEBUGMODE
JLS 1:2dcd2355ae5e 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 1:2dcd2355ae5e 341 #endif
JLS 1:2dcd2355ae5e 342
JLS 1:2dcd2355ae5e 343 switch (resp) {
JLS 1:2dcd2355ae5e 344 case 4 : // if OK populate data
JLS 1:2dcd2355ae5e 345 *x = ((response[0]<<8)+ response[1]) * (response[0] != 0xFF);
JLS 1:2dcd2355ae5e 346 *y = ((response[2]<<8)+ response[3]) * (response[2] != 0xFF);
JLS 1:2dcd2355ae5e 347 break;
JLS 1:2dcd2355ae5e 348 default :
JLS 1:2dcd2355ae5e 349 *x = -1;
JLS 1:2dcd2355ae5e 350 *y = -1;
JLS 1:2dcd2355ae5e 351 break;
JLS 1:2dcd2355ae5e 352 }
JLS 1:2dcd2355ae5e 353
JLS 1:2dcd2355ae5e 354 #if DEBUGMODE
JLS 1:2dcd2355ae5e 355 pc.printf(" X,Y : %03d,%03d\n\r", *x, *y);
JLS 1:2dcd2355ae5e 356 #endif
JLS 1:2dcd2355ae5e 357 }
JLS 1:2dcd2355ae5e 358
JLS 1:2dcd2355ae5e 359 //******************************************************************************************************
JLS 1:2dcd2355ae5e 360 int TFT_4DGL :: getSTATUS(char *command, int number) { // read screen info and populate data
JLS 1:2dcd2355ae5e 361
JLS 1:2dcd2355ae5e 362 #if DEBUGMODE
JLS 1:2dcd2355ae5e 363 pc.printf("\n\r");
JLS 1:2dcd2355ae5e 364 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:2dcd2355ae5e 365 #endif
JLS 1:2dcd2355ae5e 366
JLS 1:2dcd2355ae5e 367 int i, temp = 0, resp = 0;
JLS 1:2dcd2355ae5e 368 char response[5] = "";
JLS 1:2dcd2355ae5e 369
JLS 1:2dcd2355ae5e 370 freeBUFFER();
JLS 1:2dcd2355ae5e 371
JLS 1:2dcd2355ae5e 372 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS 1:2dcd2355ae5e 373
JLS 1:2dcd2355ae5e 374 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:2dcd2355ae5e 375
JLS 1:2dcd2355ae5e 376 while (_cmd.readable()) {
JLS 1:2dcd2355ae5e 377 temp = _cmd.getc();
JLS 1:2dcd2355ae5e 378 response[resp++] = (char)temp;
JLS 1:2dcd2355ae5e 379 }
JLS 1:2dcd2355ae5e 380 switch (resp) {
JLS 1:2dcd2355ae5e 381 case 4 :
JLS 1:2dcd2355ae5e 382 resp = (int)response[1]; // if OK populate data
JLS 1:2dcd2355ae5e 383 break;
JLS 1:2dcd2355ae5e 384 default :
JLS 1:2dcd2355ae5e 385 resp = -1; // else return 0
JLS 1:2dcd2355ae5e 386 break;
JLS 1:2dcd2355ae5e 387 }
JLS 1:2dcd2355ae5e 388
JLS 1:2dcd2355ae5e 389 #if DEBUGMODE
JLS 1:2dcd2355ae5e 390 pc.printf(" Answer received : %d\n\r", resp);
JLS 1:2dcd2355ae5e 391 #endif
JLS 1:2dcd2355ae5e 392
JLS 1:2dcd2355ae5e 393 return resp;
JLS 1:2dcd2355ae5e 394 }