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TFT_4DGL_main.cpp@1:be9de147b3d1, 2010-12-26 (annotated)

Committer:
JLS
Date:
Sun Dec 26 20:28:40 2010 +0000
Revision:
1:be9de147b3d1
update

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JLS 1:be9de147b3d1 1 //
JLS 1:be9de147b3d1 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
JLS 1:be9de147b3d1 3 //
JLS 1:be9de147b3d1 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
JLS 1:be9de147b3d1 5 //
JLS 1:be9de147b3d1 6 // TFT_4DGL is free software: you can redistribute it and/or modify
JLS 1:be9de147b3d1 7 // it under the terms of the GNU General Public License as published by
JLS 1:be9de147b3d1 8 // the Free Software Foundation, either version 3 of the License, or
JLS 1:be9de147b3d1 9 // (at your option) any later version.
JLS 1:be9de147b3d1 10 //
JLS 1:be9de147b3d1 11 // TFT_4DGL is distributed in the hope that it will be useful,
JLS 1:be9de147b3d1 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
JLS 1:be9de147b3d1 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
JLS 1:be9de147b3d1 14 // GNU General Public License for more details.
JLS 1:be9de147b3d1 15 //
JLS 1:be9de147b3d1 16 // You should have received a copy of the GNU General Public License
JLS 1:be9de147b3d1 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
JLS 1:be9de147b3d1 18
JLS 1:be9de147b3d1 19 #include "mbed.h"
JLS 1:be9de147b3d1 20 #include "TFT_4DGL.h"
JLS 1:be9de147b3d1 21
JLS 1:be9de147b3d1 22 Serial pc(USBTX,USBRX);
JLS 1:be9de147b3d1 23 //DigitalOut led1(LED1), led2(LED2);
JLS 1:be9de147b3d1 24
JLS 1:be9de147b3d1 25 //******************************************************************************************************
JLS 1:be9de147b3d1 26 TFT_4DGL :: TFT_4DGL(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx), _rst(rst) { // Constructor
JLS 1:be9de147b3d1 27
JLS 1:be9de147b3d1 28 #if DEBUGMODE
JLS 1:be9de147b3d1 29 pc.baud(115200);
JLS 1:be9de147b3d1 30
JLS 1:be9de147b3d1 31 pc.printf("\n\n\n");
JLS 1:be9de147b3d1 32 pc.printf("********************\n\r");
JLS 1:be9de147b3d1 33 pc.printf("TFT_4DGL CONSTRUCTOR\n\r");
JLS 1:be9de147b3d1 34 pc.printf("********************\n\r");
JLS 1:be9de147b3d1 35 #endif
JLS 1:be9de147b3d1 36
JLS 1:be9de147b3d1 37 _rst = 1; // put RESET pin to high to start TFT screen
JLS 1:be9de147b3d1 38
JLS 1:be9de147b3d1 39 reset();
JLS 1:be9de147b3d1 40 autobaud(); // send autobaud command
JLS 1:be9de147b3d1 41 baudrate(256000); // set the initial baudrate to 256kbps - fastest supported by uLCD-32PT
JLS 1:be9de147b3d1 42 cls(); // clear screen
JLS 1:be9de147b3d1 43
JLS 1:be9de147b3d1 44 current_col = 0; // initial cursor col
JLS 1:be9de147b3d1 45 current_row = 0; // initial cursor row
JLS 1:be9de147b3d1 46 current_color = WHITE; // initial text color
JLS 1:be9de147b3d1 47 current_orientation = IS_PORTRAIT; // initial screen orientation
JLS 1:be9de147b3d1 48
JLS 1:be9de147b3d1 49 set_font(FONT_5X7); // initial font
JLS 1:be9de147b3d1 50 text_mode(TRANSPARENT); // initial text mode
JLS 1:be9de147b3d1 51 display_control(0x06,0x00); // initial Image control new format
JLS 1:be9de147b3d1 52 }
JLS 1:be9de147b3d1 53
JLS 1:be9de147b3d1 54 //******************************************************************************************************
JLS 1:be9de147b3d1 55 void TFT_4DGL :: writeBYTE(char c) { // send a BYTE command to screen
JLS 1:be9de147b3d1 56
JLS 1:be9de147b3d1 57 _cmd.putc(c);
JLS 1:be9de147b3d1 58
JLS 1:be9de147b3d1 59 #if DEBUGMODE
JLS 1:be9de147b3d1 60 pc.printf(" Char sent : 0x%02X ",c);
JLS 1:be9de147b3d1 61 pc.putc(c);
JLS 1:be9de147b3d1 62 pc.printf(" \n\r");
JLS 1:be9de147b3d1 63 #endif
JLS 1:be9de147b3d1 64
JLS 1:be9de147b3d1 65 }
JLS 1:be9de147b3d1 66
JLS 1:be9de147b3d1 67 //******************************************************************************************************
JLS 1:be9de147b3d1 68 void TFT_4DGL :: freeBUFFER(void) { // Clear serial buffer before writing command
JLS 1:be9de147b3d1 69
JLS 1:be9de147b3d1 70 while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
JLS 1:be9de147b3d1 71 }
JLS 1:be9de147b3d1 72
JLS 1:be9de147b3d1 73 //******************************************************************************************************
JLS 1:be9de147b3d1 74 int TFT_4DGL :: writeCOMMAND(char *command, int number) { // send several BYTES making a command and return an answer
JLS 1:be9de147b3d1 75
JLS 1:be9de147b3d1 76 #if DEBUGMODE
JLS 1:be9de147b3d1 77 pc.printf("\n\r");
JLS 1:be9de147b3d1 78 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:be9de147b3d1 79 #endif
JLS 1:be9de147b3d1 80 int i, resp = 0;
JLS 1:be9de147b3d1 81 freeBUFFER();
JLS 1:be9de147b3d1 82
JLS 1:be9de147b3d1 83 for (i = 0; i < number; i++) writeBYTE(command[i]); // send command to serial port
JLS 1:be9de147b3d1 84
JLS 1:be9de147b3d1 85 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:be9de147b3d1 86 if (_cmd.readable()) resp = _cmd.getc(); // read response if any
JLS 1:be9de147b3d1 87 switch (resp) {
JLS 1:be9de147b3d1 88 case ACK : // if OK return 1
JLS 1:be9de147b3d1 89 resp = 1;
JLS 1:be9de147b3d1 90 break;
JLS 1:be9de147b3d1 91 case NAK : // if NOK return -1
JLS 1:be9de147b3d1 92 resp = -1;
JLS 1:be9de147b3d1 93 break;
JLS 1:be9de147b3d1 94 default :
JLS 1:be9de147b3d1 95 resp = 0; // else return 0
JLS 1:be9de147b3d1 96 break;
JLS 1:be9de147b3d1 97 }
JLS 1:be9de147b3d1 98 #if DEBUGMODE
JLS 1:be9de147b3d1 99 pc.printf(" Answer received : %d\n\r",resp);
JLS 1:be9de147b3d1 100 #endif
JLS 1:be9de147b3d1 101
JLS 1:be9de147b3d1 102 return resp;
JLS 1:be9de147b3d1 103 }
JLS 1:be9de147b3d1 104
JLS 1:be9de147b3d1 105 //**************************************************************************
JLS 1:be9de147b3d1 106 void TFT_4DGL :: reset() { // Reset Screen
JLS 1:be9de147b3d1 107
JLS 1:be9de147b3d1 108 _rst = 0; // put RESET pin to low
JLS 1:be9de147b3d1 109 wait_ms(TEMPO); // wait a few milliseconds for command reception
JLS 1:be9de147b3d1 110 _rst = 1; // put RESET back to high
JLS 1:be9de147b3d1 111 wait(3); // wait 3s for screen to restart
JLS 1:be9de147b3d1 112
JLS 1:be9de147b3d1 113 freeBUFFER(); // clean buffer from possible garbage
JLS 1:be9de147b3d1 114 }
JLS 1:be9de147b3d1 115
JLS 1:be9de147b3d1 116 //**************************************************************************
JLS 1:be9de147b3d1 117 void TFT_4DGL :: autobaud() { // send AutoBaud command (9600)
JLS 1:be9de147b3d1 118 char command[1] = "";
JLS 1:be9de147b3d1 119 command[0] = AUTOBAUD;
JLS 1:be9de147b3d1 120 writeCOMMAND(command, 1);
JLS 1:be9de147b3d1 121 }
JLS 1:be9de147b3d1 122
JLS 1:be9de147b3d1 123 //**************************************************************************
JLS 1:be9de147b3d1 124 void TFT_4DGL :: cls() { // clear screen
JLS 1:be9de147b3d1 125 char command[1] = "";
JLS 1:be9de147b3d1 126 command[0] = CLS;
JLS 1:be9de147b3d1 127 writeCOMMAND(command, 1);
JLS 1:be9de147b3d1 128 }
JLS 1:be9de147b3d1 129
JLS 1:be9de147b3d1 130 //**************************************************************************
JLS 1:be9de147b3d1 131 void TFT_4DGL :: version() { // get API version
JLS 1:be9de147b3d1 132 char command[2] = "";
JLS 1:be9de147b3d1 133 command[0] = VERSION;
JLS 1:be9de147b3d1 134 command[1] = OFF;
JLS 1:be9de147b3d1 135 readVERSION(command, 2);
JLS 1:be9de147b3d1 136 }
JLS 1:be9de147b3d1 137
JLS 1:be9de147b3d1 138 //**************************************************************************
JLS 1:be9de147b3d1 139 void TFT_4DGL :: baudrate(long speed) { // set screen baud rate
JLS 1:be9de147b3d1 140 char command[2]= "";
JLS 1:be9de147b3d1 141 command[0] = BAUDRATE;
JLS 1:be9de147b3d1 142 switch (speed) {
JLS 1:be9de147b3d1 143 case 110 :
JLS 1:be9de147b3d1 144 command[1] = BAUD_110;
JLS 1:be9de147b3d1 145 break;
JLS 1:be9de147b3d1 146 case 300 :
JLS 1:be9de147b3d1 147 command[1] = BAUD_300;
JLS 1:be9de147b3d1 148 break;
JLS 1:be9de147b3d1 149 case 600 :
JLS 1:be9de147b3d1 150 command[1] = BAUD_600;
JLS 1:be9de147b3d1 151 break;
JLS 1:be9de147b3d1 152 case 1200 :
JLS 1:be9de147b3d1 153 command[1] = BAUD_1200;
JLS 1:be9de147b3d1 154 break;
JLS 1:be9de147b3d1 155 case 2400 :
JLS 1:be9de147b3d1 156 command[1] = BAUD_2400;
JLS 1:be9de147b3d1 157 break;
JLS 1:be9de147b3d1 158 case 4800 :
JLS 1:be9de147b3d1 159 command[1] = BAUD_4800;
JLS 1:be9de147b3d1 160 break;
JLS 1:be9de147b3d1 161 case 9600 :
JLS 1:be9de147b3d1 162 command[1] = BAUD_9600;
JLS 1:be9de147b3d1 163 break;
JLS 1:be9de147b3d1 164 case 14400 :
JLS 1:be9de147b3d1 165 command[1] = BAUD_14400;
JLS 1:be9de147b3d1 166 break;
JLS 1:be9de147b3d1 167 case 19200 :
JLS 1:be9de147b3d1 168 command[1] = BAUD_19200;
JLS 1:be9de147b3d1 169 break;
JLS 1:be9de147b3d1 170 case 31250 :
JLS 1:be9de147b3d1 171 command[1] = BAUD_31250;
JLS 1:be9de147b3d1 172 break;
JLS 1:be9de147b3d1 173 case 38400 :
JLS 1:be9de147b3d1 174 command[1] = BAUD_38400;
JLS 1:be9de147b3d1 175 break;
JLS 1:be9de147b3d1 176 case 56000 :
JLS 1:be9de147b3d1 177 command[1] = BAUD_56000;
JLS 1:be9de147b3d1 178 break;
JLS 1:be9de147b3d1 179 case 57600 :
JLS 1:be9de147b3d1 180 command[1] = BAUD_57600;
JLS 1:be9de147b3d1 181 break;
JLS 1:be9de147b3d1 182 case 115200 :
JLS 1:be9de147b3d1 183 command[1] = BAUD_115200;
JLS 1:be9de147b3d1 184 break;
JLS 1:be9de147b3d1 185 case 128000 :
JLS 1:be9de147b3d1 186 command[1] = BAUD_128000;
JLS 1:be9de147b3d1 187 break;
JLS 1:be9de147b3d1 188 case 256000 :
JLS 1:be9de147b3d1 189 command[1] = BAUD_256000;
JLS 1:be9de147b3d1 190 break;
JLS 1:be9de147b3d1 191 default :
JLS 1:be9de147b3d1 192 command[1] = BAUD_9600;
JLS 1:be9de147b3d1 193 speed = 9600;
JLS 1:be9de147b3d1 194 break;
JLS 1:be9de147b3d1 195 }
JLS 1:be9de147b3d1 196
JLS 1:be9de147b3d1 197 #if DEBUGMODE
JLS 1:be9de147b3d1 198 pc.printf("\n\r");
JLS 1:be9de147b3d1 199 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:be9de147b3d1 200 #endif
JLS 1:be9de147b3d1 201
JLS 1:be9de147b3d1 202 int i, resp = 0;
JLS 1:be9de147b3d1 203 freeBUFFER();
JLS 1:be9de147b3d1 204
JLS 1:be9de147b3d1 205 if(speed==256000)
JLS 1:be9de147b3d1 206 speed=281000; //If baud rate is 256K comm at 281k - as instructed by 4DGL
JLS 1:be9de147b3d1 207
JLS 1:be9de147b3d1 208 for (i = 0; i <2; i++) writeBYTE(command[i]); // send command to serial port
JLS 1:be9de147b3d1 209 _cmd.baud(speed); // set mbed to same speed
JLS 1:be9de147b3d1 210
JLS 1:be9de147b3d1 211 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:be9de147b3d1 212
JLS 1:be9de147b3d1 213 if (_cmd.readable()) resp = _cmd.getc(); // read response if any
JLS 1:be9de147b3d1 214 switch (resp) {
JLS 1:be9de147b3d1 215 case ACK : // if OK return 1
JLS 1:be9de147b3d1 216 resp = 1;
JLS 1:be9de147b3d1 217 break;
JLS 1:be9de147b3d1 218 case NAK : // if NOK return -1
JLS 1:be9de147b3d1 219 resp = -1;
JLS 1:be9de147b3d1 220 break;
JLS 1:be9de147b3d1 221 default :
JLS 1:be9de147b3d1 222 resp = 0; // else return 0
JLS 1:be9de147b3d1 223 break;
JLS 1:be9de147b3d1 224 }
JLS 1:be9de147b3d1 225 #if DEBUGMODE
JLS 1:be9de147b3d1 226 pc.printf(" Baudrate reply received : %d\n\r",resp);
JLS 1:be9de147b3d1 227 #endif
JLS 1:be9de147b3d1 228 }
JLS 1:be9de147b3d1 229
JLS 1:be9de147b3d1 230 //******************************************************************************************************
JLS 1:be9de147b3d1 231 int TFT_4DGL :: readVERSION(char *command, int number) { // read screen info and populate data
JLS 1:be9de147b3d1 232
JLS 1:be9de147b3d1 233 int i, temp = 0, resp = 0;
JLS 1:be9de147b3d1 234 char response[5] = "";
JLS 1:be9de147b3d1 235
JLS 1:be9de147b3d1 236 freeBUFFER();
JLS 1:be9de147b3d1 237
JLS 1:be9de147b3d1 238 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS 1:be9de147b3d1 239
JLS 1:be9de147b3d1 240 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:be9de147b3d1 241
JLS 1:be9de147b3d1 242 while (_cmd.readable()) {
JLS 1:be9de147b3d1 243 temp = _cmd.getc();
JLS 1:be9de147b3d1 244 response[resp++] = (char)temp;
JLS 1:be9de147b3d1 245 }
JLS 1:be9de147b3d1 246 switch (resp) {
JLS 1:be9de147b3d1 247 case 5 : // if OK populate data and return 1
JLS 1:be9de147b3d1 248 type = response[0];
JLS 1:be9de147b3d1 249 revision = response[1];
JLS 1:be9de147b3d1 250 firmware = response[2];
JLS 1:be9de147b3d1 251 reserved1 = response[3];
JLS 1:be9de147b3d1 252 reserved2 = response[4];
JLS 1:be9de147b3d1 253 resp = 1;
JLS 1:be9de147b3d1 254 break;
JLS 1:be9de147b3d1 255 default :
JLS 1:be9de147b3d1 256 resp = 0; // else return 0
JLS 1:be9de147b3d1 257 break;
JLS 1:be9de147b3d1 258 }
JLS 1:be9de147b3d1 259 return resp;
JLS 1:be9de147b3d1 260 }
JLS 1:be9de147b3d1 261
JLS 1:be9de147b3d1 262 //****************************************************************************************************
JLS 1:be9de147b3d1 263 void TFT_4DGL :: background_color(int color) { // set screen background color
JLS 1:be9de147b3d1 264 char command[3]= ""; // input color is in 24bits like 0xRRGGBB
JLS 1:be9de147b3d1 265
JLS 1:be9de147b3d1 266 command[0] = BCKGDCOLOR;
JLS 1:be9de147b3d1 267
JLS 1:be9de147b3d1 268 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 1:be9de147b3d1 269 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 1:be9de147b3d1 270 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 1:be9de147b3d1 271
JLS 1:be9de147b3d1 272 command[1] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 1:be9de147b3d1 273 command[2] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 1:be9de147b3d1 274
JLS 1:be9de147b3d1 275 writeCOMMAND(command, 3);
JLS 1:be9de147b3d1 276 }
JLS 1:be9de147b3d1 277
JLS 1:be9de147b3d1 278 //****************************************************************************************************
JLS 1:be9de147b3d1 279 void TFT_4DGL :: display_control(char mode, char value) { // set screen mode to value
JLS 1:be9de147b3d1 280 char command[3]= "";
JLS 1:be9de147b3d1 281
JLS 1:be9de147b3d1 282 command[0] = DISPCONTROL;
JLS 1:be9de147b3d1 283 command[1] = mode;
JLS 1:be9de147b3d1 284 command[2] = value;
JLS 1:be9de147b3d1 285
JLS 1:be9de147b3d1 286 if (mode == ORIENTATION) {
JLS 1:be9de147b3d1 287 switch (value) {
JLS 1:be9de147b3d1 288 case LANDSCAPE :
JLS 1:be9de147b3d1 289 current_orientation = IS_LANDSCAPE;
JLS 1:be9de147b3d1 290 break;
JLS 1:be9de147b3d1 291 case LANDSCAPE_R :
JLS 1:be9de147b3d1 292 current_orientation = IS_LANDSCAPE;
JLS 1:be9de147b3d1 293 break;
JLS 1:be9de147b3d1 294 case PORTRAIT :
JLS 1:be9de147b3d1 295 current_orientation = IS_PORTRAIT;
JLS 1:be9de147b3d1 296 break;
JLS 1:be9de147b3d1 297 case PORTRAIT_R :
JLS 1:be9de147b3d1 298 current_orientation = IS_PORTRAIT;
JLS 1:be9de147b3d1 299 break;
JLS 1:be9de147b3d1 300 }
JLS 1:be9de147b3d1 301 set_font(current_font);
JLS 1:be9de147b3d1 302 }
JLS 1:be9de147b3d1 303 writeCOMMAND(command, 3);
JLS 1:be9de147b3d1 304
JLS 1:be9de147b3d1 305 }
JLS 1:be9de147b3d1 306
JLS 1:be9de147b3d1 307 //****************************************************************************************************
JLS 1:be9de147b3d1 308 void TFT_4DGL :: set_volume(char value) { // set sound volume to value
JLS 1:be9de147b3d1 309 char command[2]= "";
JLS 1:be9de147b3d1 310
JLS 1:be9de147b3d1 311 command[0] = SETVOLUME;
JLS 1:be9de147b3d1 312 command[1] = value;
JLS 1:be9de147b3d1 313
JLS 1:be9de147b3d1 314 writeCOMMAND(command, 2);
JLS 1:be9de147b3d1 315 }
JLS 1:be9de147b3d1 316
JLS 1:be9de147b3d1 317
JLS 1:be9de147b3d1 318 //******************************************************************************************************
JLS 1:be9de147b3d1 319 void TFT_4DGL :: getTOUCH(char *command, int number, int *x, int *y) { // read screen info and populate data
JLS 1:be9de147b3d1 320
JLS 1:be9de147b3d1 321 #if DEBUGMODE
JLS 1:be9de147b3d1 322 pc.printf("\n\r");
JLS 1:be9de147b3d1 323 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:be9de147b3d1 324 #endif
JLS 1:be9de147b3d1 325 int i, temp = 0, resp = 0;
JLS 1:be9de147b3d1 326 char response[5] = "";
JLS 1:be9de147b3d1 327
JLS 1:be9de147b3d1 328 freeBUFFER();
JLS 1:be9de147b3d1 329
JLS 1:be9de147b3d1 330 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS 1:be9de147b3d1 331
JLS 1:be9de147b3d1 332 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:be9de147b3d1 333
JLS 1:be9de147b3d1 334 while (_cmd.readable()) {
JLS 1:be9de147b3d1 335 temp = _cmd.getc();
JLS 1:be9de147b3d1 336 response[resp++] = (char)temp;
JLS 1:be9de147b3d1 337 }
JLS 1:be9de147b3d1 338
JLS 1:be9de147b3d1 339 #if DEBUGMODE
JLS 1:be9de147b3d1 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:be9de147b3d1 341 #endif
JLS 1:be9de147b3d1 342
JLS 1:be9de147b3d1 343 switch (resp) {
JLS 1:be9de147b3d1 344 case 4 : // if OK populate data
JLS 1:be9de147b3d1 345 *x = ((response[0]<<8)+ response[1]) * (response[0] != 0xFF);
JLS 1:be9de147b3d1 346 *y = ((response[2]<<8)+ response[3]) * (response[2] != 0xFF);
JLS 1:be9de147b3d1 347 break;
JLS 1:be9de147b3d1 348 default :
JLS 1:be9de147b3d1 349 *x = -1;
JLS 1:be9de147b3d1 350 *y = -1;
JLS 1:be9de147b3d1 351 break;
JLS 1:be9de147b3d1 352 }
JLS 1:be9de147b3d1 353
JLS 1:be9de147b3d1 354 #if DEBUGMODE
JLS 1:be9de147b3d1 355 pc.printf(" X,Y : %03d,%03d\n\r", *x, *y);
JLS 1:be9de147b3d1 356 #endif
JLS 1:be9de147b3d1 357 }
JLS 1:be9de147b3d1 358
JLS 1:be9de147b3d1 359 //******************************************************************************************************
JLS 1:be9de147b3d1 360 int TFT_4DGL :: getSTATUS(char *command, int number) { // read screen info and populate data
JLS 1:be9de147b3d1 361
JLS 1:be9de147b3d1 362 #if DEBUGMODE
JLS 1:be9de147b3d1 363 pc.printf("\n\r");
JLS 1:be9de147b3d1 364 pc.printf("New COMMAND : 0x%02X\n\r", command[0]);
JLS 1:be9de147b3d1 365 #endif
JLS 1:be9de147b3d1 366
JLS 1:be9de147b3d1 367 int i, temp = 0, resp = 0;
JLS 1:be9de147b3d1 368 char response[5] = "";
JLS 1:be9de147b3d1 369
JLS 1:be9de147b3d1 370 freeBUFFER();
JLS 1:be9de147b3d1 371
JLS 1:be9de147b3d1 372 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
JLS 1:be9de147b3d1 373
JLS 1:be9de147b3d1 374 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
JLS 1:be9de147b3d1 375
JLS 1:be9de147b3d1 376 while (_cmd.readable()) {
JLS 1:be9de147b3d1 377 temp = _cmd.getc();
JLS 1:be9de147b3d1 378 response[resp++] = (char)temp;
JLS 1:be9de147b3d1 379 }
JLS 1:be9de147b3d1 380 switch (resp) {
JLS 1:be9de147b3d1 381 case 4 :
JLS 1:be9de147b3d1 382 resp = (int)response[1]; // if OK populate data
JLS 1:be9de147b3d1 383 break;
JLS 1:be9de147b3d1 384 default :
JLS 1:be9de147b3d1 385 resp = -1; // else return 0
JLS 1:be9de147b3d1 386 break;
JLS 1:be9de147b3d1 387 }
JLS 1:be9de147b3d1 388
JLS 1:be9de147b3d1 389 #if DEBUGMODE
JLS 1:be9de147b3d1 390 pc.printf(" Answer received : %d\n\r", resp);
JLS 1:be9de147b3d1 391 #endif
JLS 1:be9de147b3d1 392
JLS 1:be9de147b3d1 393 return resp;
JLS 1:be9de147b3d1 394 }