Jingyi Zhang / uVGAIII

Library for uVGAIII

Dependents:   uVGAIII_demo

uVGAIII_main.cpp@5:8acc50389659, 2014-03-24 (annotated)

Committer:
ivygatech
Date:
Mon Mar 24 19:54:56 2014 +0000
Revision:
5:8acc50389659
Parent:
0:de1ab53f3480 
update library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ivygatech 0:de1ab53f3480 1 //
ivygatech 0:de1ab53f3480 2 // uVGAIII is a class to drive 4D Systems TFT touch screens
ivygatech 0:de1ab53f3480 3 //
ivygatech 0:de1ab53f3480 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
ivygatech 0:de1ab53f3480 5 //
ivygatech 0:de1ab53f3480 6 // uVGAIII is free software: you can redistribute it and/or modify
ivygatech 0:de1ab53f3480 7 // it under the terms of the GNU General Public License as published by
ivygatech 0:de1ab53f3480 8 // the Free Software Foundation, either version 3 of the License, or
ivygatech 0:de1ab53f3480 9 // (at your option) any later version.
ivygatech 0:de1ab53f3480 10 //
ivygatech 0:de1ab53f3480 11 // uVGAIII is distributed in the hope that it will be useful,
ivygatech 0:de1ab53f3480 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
ivygatech 0:de1ab53f3480 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ivygatech 0:de1ab53f3480 14 // GNU General Public License for more details.
ivygatech 0:de1ab53f3480 15 //
ivygatech 0:de1ab53f3480 16 // You should have received a copy of the GNU General Public License
ivygatech 0:de1ab53f3480 17 // along with uVGAIII. If not, see <http://www.gnu.org/licenses/>.
ivygatech 0:de1ab53f3480 18
ivygatech 0:de1ab53f3480 19 #include "mbed.h"
ivygatech 0:de1ab53f3480 20 #include "uVGAIII.h"
ivygatech 0:de1ab53f3480 21
ivygatech 0:de1ab53f3480 22 #define ARRAY_SIZE(X) sizeof(X)/sizeof(X[0])
ivygatech 0:de1ab53f3480 23
ivygatech 0:de1ab53f3480 24 //Serial pc(USBTX,USBRX);
ivygatech 0:de1ab53f3480 25
ivygatech 0:de1ab53f3480 26 //******************************************************************************************************
ivygatech 0:de1ab53f3480 27 uVGAIII :: uVGAIII(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx),
ivygatech 0:de1ab53f3480 28 _rst(rst)
ivygatech 0:de1ab53f3480 29 #if DEBUGMODE
ivygatech 0:de1ab53f3480 30 ,pc(USBTX, USBRX)
ivygatech 0:de1ab53f3480 31 #endif // DEBUGMODE
ivygatech 0:de1ab53f3480 32 { // Constructor
ivygatech 0:de1ab53f3480 33
ivygatech 0:de1ab53f3480 34 #if DEBUGMODE
ivygatech 0:de1ab53f3480 35 pc.baud(115200);
ivygatech 0:de1ab53f3480 36
ivygatech 0:de1ab53f3480 37 pc.printf("\n\n\n");
ivygatech 0:de1ab53f3480 38 pc.printf("********************\n");
ivygatech 0:de1ab53f3480 39 pc.printf("uVGAIII CONSTRUCTOR\n");
ivygatech 0:de1ab53f3480 40 pc.printf("********************\n");
ivygatech 0:de1ab53f3480 41 #endif
ivygatech 0:de1ab53f3480 42 _cmd.baud(9600);
ivygatech 0:de1ab53f3480 43 _rst = 1; // put RESET pin to high to start TFT screen
ivygatech 0:de1ab53f3480 44
ivygatech 0:de1ab53f3480 45 reset();
ivygatech 0:de1ab53f3480 46 cls(); // clear screen
ivygatech 0:de1ab53f3480 47 speversion(); // get SPE version information
ivygatech 0:de1ab53f3480 48 pmmcversion(); // get PmmC version information
ivygatech 0:de1ab53f3480 49
ivygatech 0:de1ab53f3480 50 current_col = 0; // initial cursor col
ivygatech 0:de1ab53f3480 51 current_row = 0; // initial cursor row
ivygatech 0:de1ab53f3480 52 current_color = WHITE; // initial text color
ivygatech 0:de1ab53f3480 53 current_orientation = IS_LANDSCAPE; // initial screen orientation
ivygatech 0:de1ab53f3480 54
ivygatech 0:de1ab53f3480 55 set_font(FONT3); // initial font ( This line can be removed because font has been set to be FONT3 )
ivygatech 0:de1ab53f3480 56 text_opacity(OPAQUE); // initial text opacity ( This line can be removed because text opacity has been set to be OPAQUE )
ivygatech 0:de1ab53f3480 57 }
ivygatech 0:de1ab53f3480 58
ivygatech 0:de1ab53f3480 59 //******************************************************************************************************
ivygatech 0:de1ab53f3480 60 void uVGAIII :: writeBYTE(char c) { // send a BYTE command to screen
ivygatech 0:de1ab53f3480 61
ivygatech 0:de1ab53f3480 62 _cmd.putc(c);
ivygatech 0:de1ab53f3480 63 wait_ms(1);
ivygatech 0:de1ab53f3480 64
ivygatech 0:de1ab53f3480 65 #if DEBUGMODE
ivygatech 0:de1ab53f3480 66 pc.printf(" Char sent : 0x%02X\n",c);
ivygatech 0:de1ab53f3480 67 #endif
ivygatech 0:de1ab53f3480 68
ivygatech 0:de1ab53f3480 69 }
ivygatech 0:de1ab53f3480 70
ivygatech 0:de1ab53f3480 71 //******************************************************************************************************
ivygatech 0:de1ab53f3480 72 void uVGAIII :: freeBUFFER(void) { // Clear serial buffer before writing command
ivygatech 0:de1ab53f3480 73
ivygatech 0:de1ab53f3480 74 while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
ivygatech 0:de1ab53f3480 75 }
ivygatech 0:de1ab53f3480 76
ivygatech 0:de1ab53f3480 77 //******************************************************************************************************
ivygatech 0:de1ab53f3480 78 int uVGAIII :: writeCOMMAND(char *command, int commNum, int respNum) { // send several BYTES making a command and return an answer
ivygatech 0:de1ab53f3480 79
ivygatech 0:de1ab53f3480 80 #if DEBUGMODE
ivygatech 0:de1ab53f3480 81 pc.printf("\n");
ivygatech 0:de1ab53f3480 82 pc.printf("New COMMAND : 0x%02X%02X\n", command[0], command[1]);
ivygatech 0:de1ab53f3480 83 #endif
ivygatech 0:de1ab53f3480 84 int i, resp = 0;
ivygatech 0:de1ab53f3480 85 freeBUFFER();
ivygatech 0:de1ab53f3480 86
ivygatech 0:de1ab53f3480 87 for (i = 0; i < commNum; i++) {writeBYTE(command[i]); wait_ms(100);} // send command to serial port
ivygatech 0:de1ab53f3480 88
ivygatech 0:de1ab53f3480 89 for (i = 0; i < respNum; i++) {
ivygatech 0:de1ab53f3480 90 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ivygatech 0:de1ab53f3480 91 if (_cmd.readable()) {
ivygatech 0:de1ab53f3480 92 resp = _cmd.getc(); // read response if any
ivygatech 0:de1ab53f3480 93 #if DEBUGMODE
ivygatech 0:de1ab53f3480 94 pc.printf("response = 0x%02X\n",resp);
ivygatech 0:de1ab53f3480 95 #endif
ivygatech 0:de1ab53f3480 96 }
ivygatech 0:de1ab53f3480 97 }
ivygatech 0:de1ab53f3480 98 return resp;
ivygatech 0:de1ab53f3480 99 }
ivygatech 0:de1ab53f3480 100
ivygatech 0:de1ab53f3480 101 //**************************************************************************
ivygatech 0:de1ab53f3480 102 void uVGAIII :: reset() { // Reset Screen
ivygatech 0:de1ab53f3480 103
ivygatech 0:de1ab53f3480 104 _rst = 0; // put RESET pin to low
ivygatech 0:de1ab53f3480 105 wait_ms(TEMPO); // wait a few milliseconds for command reception
ivygatech 0:de1ab53f3480 106 _rst = 1; // put RESET back to high
ivygatech 0:de1ab53f3480 107 wait(3.2); // wait 3s for screen to restart
ivygatech 0:de1ab53f3480 108
ivygatech 0:de1ab53f3480 109 freeBUFFER(); // clean buffer from possible garbage
ivygatech 0:de1ab53f3480 110
ivygatech 0:de1ab53f3480 111 #if DEBUGMODE
ivygatech 0:de1ab53f3480 112 pc.printf("Reset completed.\n");
ivygatech 0:de1ab53f3480 113 #endif
ivygatech 0:de1ab53f3480 114 }
ivygatech 0:de1ab53f3480 115
ivygatech 0:de1ab53f3480 116 //**************************************************************************
ivygatech 0:de1ab53f3480 117 void uVGAIII :: speversion() { // get SPE version
ivygatech 0:de1ab53f3480 118 char command[2] = "";
ivygatech 0:de1ab53f3480 119 int spe = 0;
ivygatech 0:de1ab53f3480 120 command[0] = (SPEVERSION >> 8) & 0xFF;
ivygatech 0:de1ab53f3480 121 command[1] = SPEVERSION & 0xFF;
ivygatech 0:de1ab53f3480 122
ivygatech 0:de1ab53f3480 123 spe = readVERSION(command, 2);
ivygatech 0:de1ab53f3480 124
ivygatech 0:de1ab53f3480 125 pc.printf("spe:%d\n",spe);
ivygatech 0:de1ab53f3480 126 }
ivygatech 0:de1ab53f3480 127
ivygatech 0:de1ab53f3480 128 //**************************************************************************
ivygatech 0:de1ab53f3480 129 void uVGAIII :: pmmcversion() { // get PmmC version
ivygatech 0:de1ab53f3480 130 char command[2] = "";
ivygatech 0:de1ab53f3480 131 int pmmc = 0;
ivygatech 0:de1ab53f3480 132 command[0] = (PMMCVERSION >> 8) & 0xFF;
ivygatech 0:de1ab53f3480 133 command[1] = PMMCVERSION & 0xFF;
ivygatech 0:de1ab53f3480 134
ivygatech 0:de1ab53f3480 135 pmmc = readVERSION(command, 2);
ivygatech 0:de1ab53f3480 136
ivygatech 0:de1ab53f3480 137 pc.printf("pmmc:%d\n",pmmc);
ivygatech 0:de1ab53f3480 138 }
ivygatech 0:de1ab53f3480 139
ivygatech 0:de1ab53f3480 140 //**************************************************************************
ivygatech 0:de1ab53f3480 141 void uVGAIII :: baudrate(int speed) { // set screen baud rate
ivygatech 0:de1ab53f3480 142 char command[4]= "";
ivygatech 0:de1ab53f3480 143 command[0] = ( BAUDRATE >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 144 command[1] = BAUDRATE & 0xFF;
ivygatech 0:de1ab53f3480 145 switch (speed) {
ivygatech 0:de1ab53f3480 146 case 110 :
ivygatech 0:de1ab53f3480 147 command[2] = ( BAUD_110 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 148 command[3] = BAUD_110 & 0xFF;
ivygatech 0:de1ab53f3480 149 break;
ivygatech 0:de1ab53f3480 150 case 300 :
ivygatech 0:de1ab53f3480 151 command[2] = ( BAUD_300 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 152 command[3] = BAUD_300 & 0xFF;
ivygatech 0:de1ab53f3480 153 break;
ivygatech 0:de1ab53f3480 154 case 600 :
ivygatech 0:de1ab53f3480 155 command[2] = ( BAUD_600 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 156 command[3] = BAUD_600 & 0xFF;
ivygatech 0:de1ab53f3480 157 break;
ivygatech 0:de1ab53f3480 158 case 1200 :
ivygatech 0:de1ab53f3480 159 command[2] = ( BAUD_1200>> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 160 command[3] = BAUD_1200 & 0xFF;
ivygatech 0:de1ab53f3480 161 break;
ivygatech 0:de1ab53f3480 162 case 2400 :
ivygatech 0:de1ab53f3480 163 command[2] = ( BAUD_2400 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 164 command[3] = BAUD_2400 & 0xFF;
ivygatech 0:de1ab53f3480 165 break;
ivygatech 0:de1ab53f3480 166 case 4800 :
ivygatech 0:de1ab53f3480 167 command[2] = ( BAUD_4800 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 168 command[3] = BAUD_4800 & 0xFF;
ivygatech 0:de1ab53f3480 169 break;
ivygatech 0:de1ab53f3480 170 case 9600 :
ivygatech 0:de1ab53f3480 171 command[2] = ( BAUD_9600 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 172 command[3] = BAUD_9600 & 0xFF;
ivygatech 0:de1ab53f3480 173 break;
ivygatech 0:de1ab53f3480 174 case 14400 :
ivygatech 0:de1ab53f3480 175 command[2] = ( BAUD_9600 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 176 command[3] = BAUD_9600 & 0xFF;
ivygatech 0:de1ab53f3480 177 break;
ivygatech 0:de1ab53f3480 178 case 19200 :
ivygatech 0:de1ab53f3480 179 command[2] = ( BAUD_19200 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 180 command[3] = BAUD_19200 & 0xFF;
ivygatech 0:de1ab53f3480 181 break;
ivygatech 0:de1ab53f3480 182 case 31250 :
ivygatech 0:de1ab53f3480 183 command[2] = ( BAUD_31250 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 184 command[3] = BAUD_31250 & 0xFF;
ivygatech 0:de1ab53f3480 185 break;
ivygatech 0:de1ab53f3480 186 case 38400 :
ivygatech 0:de1ab53f3480 187 command[2] = ( BAUD_38400 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 188 command[3] = BAUD_38400 & 0xFF;
ivygatech 0:de1ab53f3480 189 break;
ivygatech 0:de1ab53f3480 190 case 56000 :
ivygatech 0:de1ab53f3480 191 command[2] = ( BAUD_56000 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 192 command[3] = BAUD_56000 & 0xFF;
ivygatech 0:de1ab53f3480 193 break;
ivygatech 0:de1ab53f3480 194 case 57600 :
ivygatech 0:de1ab53f3480 195 command[2] = ( BAUD_57600 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 196 command[3] = BAUD_57600 & 0xFF;
ivygatech 0:de1ab53f3480 197 break;
ivygatech 0:de1ab53f3480 198 case 115200 :
ivygatech 0:de1ab53f3480 199 command[2] = ( BAUD_115200 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 200 command[3] = BAUD_115200 & 0xFF;
ivygatech 0:de1ab53f3480 201 break;
ivygatech 0:de1ab53f3480 202 case 128000 :
ivygatech 0:de1ab53f3480 203 command[2] = ( BAUD_128000 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 204 command[3] = BAUD_128000 & 0xFF;
ivygatech 0:de1ab53f3480 205 break;
ivygatech 0:de1ab53f3480 206 case 256000 :
ivygatech 0:de1ab53f3480 207 command[2] = ( BAUD_256000 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 208 command[3] = BAUD_256000 & 0xFF;
ivygatech 0:de1ab53f3480 209 break;
ivygatech 0:de1ab53f3480 210 default :
ivygatech 0:de1ab53f3480 211 command[2] = ( BAUD_9600 >> 8 ) & 0xFF;
ivygatech 0:de1ab53f3480 212 command[3] = BAUD_9600 & 0xFF;
ivygatech 0:de1ab53f3480 213 speed = 9600;
ivygatech 0:de1ab53f3480 214 break;
ivygatech 0:de1ab53f3480 215 }
ivygatech 0:de1ab53f3480 216 #if DEBUGMODE
ivygatech 0:de1ab53f3480 217 pc.printf("\n");
ivygatech 0:de1ab53f3480 218 pc.printf("New COMMAND : 0x%02X%02X\n", command[0], command[1]);
ivygatech 0:de1ab53f3480 219 #endif
ivygatech 0:de1ab53f3480 220 int i, resp = 0;
ivygatech 0:de1ab53f3480 221 freeBUFFER();
ivygatech 0:de1ab53f3480 222
ivygatech 0:de1ab53f3480 223 for (i = 0; i < 4; i++) writeBYTE(command[i]); // send command to serial port
ivygatech 0:de1ab53f3480 224 wait_ms(5);
ivygatech 0:de1ab53f3480 225 _cmd.baud(speed); // set mbed to same speed
ivygatech 0:de1ab53f3480 226
ivygatech 0:de1ab53f3480 227 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ivygatech 0:de1ab53f3480 228 if (_cmd.readable()) resp = _cmd.getc(); // read response if any
ivygatech 0:de1ab53f3480 229
ivygatech 0:de1ab53f3480 230 #if DEBUGMODE
ivygatech 0:de1ab53f3480 231 pc.printf("response = 0x%02X\n",resp);
ivygatech 0:de1ab53f3480 232 #endif
ivygatech 0:de1ab53f3480 233
ivygatech 0:de1ab53f3480 234 #if DEBUGMODE
ivygatech 0:de1ab53f3480 235 pc.printf("Set baudrate completed.\n");
ivygatech 0:de1ab53f3480 236 #endif
ivygatech 0:de1ab53f3480 237 }
ivygatech 0:de1ab53f3480 238
ivygatech 0:de1ab53f3480 239 //******************************************************************************************************
ivygatech 0:de1ab53f3480 240 int uVGAIII :: readVERSION(char *command, int number) { // read screen info and populate data
ivygatech 0:de1ab53f3480 241
ivygatech 0:de1ab53f3480 242 int i, temp = 0, resp = 0;
ivygatech 0:de1ab53f3480 243 char response[5] = "";
ivygatech 0:de1ab53f3480 244
ivygatech 0:de1ab53f3480 245 #if DEBUGMODE
ivygatech 0:de1ab53f3480 246 pc.printf("\n");
ivygatech 0:de1ab53f3480 247 pc.printf("New COMMAND : 0x%02X%02X\n", command[0], command[1]);
ivygatech 0:de1ab53f3480 248 #endif
ivygatech 0:de1ab53f3480 249
ivygatech 0:de1ab53f3480 250 freeBUFFER();
ivygatech 0:de1ab53f3480 251
ivygatech 0:de1ab53f3480 252 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
ivygatech 0:de1ab53f3480 253
ivygatech 0:de1ab53f3480 254 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ivygatech 0:de1ab53f3480 255
ivygatech 0:de1ab53f3480 256 while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
ivygatech 0:de1ab53f3480 257 temp = _cmd.getc();
ivygatech 0:de1ab53f3480 258 response[resp] = (char)temp;
ivygatech 0:de1ab53f3480 259 pc.printf("response = 0x%02X\n",response[resp]);
ivygatech 0:de1ab53f3480 260 resp++;
ivygatech 0:de1ab53f3480 261 }
ivygatech 0:de1ab53f3480 262 switch (resp) {
ivygatech 0:de1ab53f3480 263 case 3 : // if OK populate data and return version
ivygatech 0:de1ab53f3480 264 version = int(response[1]) << 8 | response[2];
ivygatech 0:de1ab53f3480 265 break;
ivygatech 0:de1ab53f3480 266 default :
ivygatech 0:de1ab53f3480 267 version = 0; // return 0
ivygatech 0:de1ab53f3480 268 break;
ivygatech 0:de1ab53f3480 269 }
ivygatech 0:de1ab53f3480 270 return version;
ivygatech 0:de1ab53f3480 271 }
ivygatech 0:de1ab53f3480 272
ivygatech 0:de1ab53f3480 273 //****************************************************************************************************
ivygatech 0:de1ab53f3480 274 void uVGAIII :: set_volume(char value) { // set sound volume to value
ivygatech 0:de1ab53f3480 275 char command[4] = "";
ivygatech 0:de1ab53f3480 276
ivygatech 0:de1ab53f3480 277 command[0] = (SETVOLUME >> 8) & 0xFF;
ivygatech 0:de1ab53f3480 278 command[1] = SETVOLUME & 0xFF;
ivygatech 0:de1ab53f3480 279
ivygatech 0:de1ab53f3480 280 command[2] = 0;
ivygatech 0:de1ab53f3480 281 command[3] = value;
ivygatech 0:de1ab53f3480 282
ivygatech 0:de1ab53f3480 283 writeCOMMAND(command, 4, 1);
ivygatech 0:de1ab53f3480 284
ivygatech 0:de1ab53f3480 285 #if DEBUGMODE
ivygatech 0:de1ab53f3480 286 pc.printf("Sound volume completed.\n");
ivygatech 0:de1ab53f3480 287 #endif
ivygatech 0:de1ab53f3480 288 }
ivygatech 0:de1ab53f3480 289
ivygatech 0:de1ab53f3480 290 //******************************************************************************************************
ivygatech 0:de1ab53f3480 291 void uVGAIII :: getTOUCH(char *command, int number, int *xy) { // read screen info and populate data
ivygatech 0:de1ab53f3480 292
ivygatech 0:de1ab53f3480 293 #if DEBUGMODE
ivygatech 0:de1ab53f3480 294 pc.printf("\n");
ivygatech 0:de1ab53f3480 295 pc.printf("New COMMAND : 0x%02X%02X\n", command[0], command[1]);
ivygatech 0:de1ab53f3480 296 #endif
ivygatech 0:de1ab53f3480 297 int i, temp = 0, resp = 0;
ivygatech 0:de1ab53f3480 298 char response[5] = "";
ivygatech 0:de1ab53f3480 299
ivygatech 0:de1ab53f3480 300 freeBUFFER();
ivygatech 0:de1ab53f3480 301
ivygatech 0:de1ab53f3480 302 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
ivygatech 0:de1ab53f3480 303
ivygatech 0:de1ab53f3480 304 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ivygatech 0:de1ab53f3480 305
ivygatech 0:de1ab53f3480 306 while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
ivygatech 0:de1ab53f3480 307 temp = _cmd.getc();
ivygatech 0:de1ab53f3480 308 response[resp++] = (char)temp;
ivygatech 0:de1ab53f3480 309 }
ivygatech 0:de1ab53f3480 310
ivygatech 0:de1ab53f3480 311 #if DEBUGMODE
ivygatech 0:de1ab53f3480 312 pc.printf(" Answer received %d : 0x%02X 0x%02X 0x%02X\n", resp, response[0], response[1], response[2]);
ivygatech 0:de1ab53f3480 313 #endif
ivygatech 0:de1ab53f3480 314
ivygatech 0:de1ab53f3480 315 switch (resp) {
ivygatech 0:de1ab53f3480 316 case 3 : // if OK populate data
ivygatech 0:de1ab53f3480 317 *xy = ((response[1]<<8)+ response[2]) * (response[1] != 0xFF);
ivygatech 0:de1ab53f3480 318 break;
ivygatech 0:de1ab53f3480 319 default :
ivygatech 0:de1ab53f3480 320 *xy = -1;
ivygatech 0:de1ab53f3480 321 break;
ivygatech 0:de1ab53f3480 322 }
ivygatech 0:de1ab53f3480 323
ivygatech 0:de1ab53f3480 324 #if DEBUGMODE
ivygatech 0:de1ab53f3480 325 pc.printf(" X or Y : %03d\n", *xy);
ivygatech 0:de1ab53f3480 326 #endif
ivygatech 0:de1ab53f3480 327 }
ivygatech 0:de1ab53f3480 328
ivygatech 0:de1ab53f3480 329 //******************************************************************************************************
ivygatech 0:de1ab53f3480 330 int uVGAIII :: getSTATUS(char *command, int number) { // read screen info and populate data
ivygatech 0:de1ab53f3480 331
ivygatech 0:de1ab53f3480 332 #if DEBUGMODE
ivygatech 0:de1ab53f3480 333 pc.printf("\n");
ivygatech 0:de1ab53f3480 334 pc.printf("New COMMAND : 0x%02X%02X\n", command[0], command[1]);
ivygatech 0:de1ab53f3480 335 #endif
ivygatech 0:de1ab53f3480 336
ivygatech 0:de1ab53f3480 337 int i, temp = 0, resp = 0;
ivygatech 0:de1ab53f3480 338 char response[5] = "";
ivygatech 0:de1ab53f3480 339
ivygatech 0:de1ab53f3480 340 freeBUFFER();
ivygatech 0:de1ab53f3480 341
ivygatech 0:de1ab53f3480 342 for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
ivygatech 0:de1ab53f3480 343
ivygatech 0:de1ab53f3480 344 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
ivygatech 0:de1ab53f3480 345
ivygatech 0:de1ab53f3480 346 while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
ivygatech 0:de1ab53f3480 347 temp = _cmd.getc();
ivygatech 0:de1ab53f3480 348 response[resp++] = (char)temp;
ivygatech 0:de1ab53f3480 349 }
ivygatech 0:de1ab53f3480 350 switch (resp) {
ivygatech 0:de1ab53f3480 351 case 3 :
ivygatech 0:de1ab53f3480 352 resp = (int)response[2]; // if OK populate data
ivygatech 0:de1ab53f3480 353 break;
ivygatech 0:de1ab53f3480 354 default :
ivygatech 0:de1ab53f3480 355 resp = -1; // else return 0
ivygatech 0:de1ab53f3480 356 break;
ivygatech 0:de1ab53f3480 357 }
ivygatech 0:de1ab53f3480 358
ivygatech 0:de1ab53f3480 359 #if DEBUGMODE
ivygatech 0:de1ab53f3480 360 pc.printf(" Answer received : %d\n", resp);
ivygatech 0:de1ab53f3480 361 #endif
ivygatech 0:de1ab53f3480 362
ivygatech 0:de1ab53f3480 363 return resp;
ivygatech 0:de1ab53f3480 364 }