Problème en lecture/écriture de badge RFID mifare classic avec Raspberry et CR038

Bonjour à tous,

je travaille actuellement sur la lecture/écriture de badges RFID mifare classic et pour cela j'ai à ma disposition une Raspberry pi 4 sous raspbian et un module RFID le CR058 (les deux sont reliés en série via un ftdi usb pour convertir les niveaux en tension).

lien module RFID CR038 :


Pour finir je programme une application C++ via QTcreator car la lecture badge rfid fait partie d'un projet plus grand déja initié sous QTcreator.

Pour réaliser le code, je me suis beaucoup inspiré du code arduino fourni par le constructeur :

Code:

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458

char button_1 = 10; //Define pin 10 as button_1 char button_2 = 11; //Define pin 11 as button_2   /*****MiFare commands*****/ char LED_ON[] = {0xAA,0xBB,0x06,0x00,0x00,0x00,0x07,0x01,0x01,0x07}; //Command to turn on MiFare module onboard LED char LED_OFF[] = {0xAA,0xBB,0x06,0x00,0x00,0x00,0x07,0x01,0x00,0x06}; //Command to turn off MiFare module onboard LED char ANTENNA_ON[] = {0xAA,0xBB,0x06,0x00,0x00,0x00,0x0C,0x01,0x01,0x0C}; //Command to turn off MiFare module onboard antenna char READ_DEV[] = {0xAA,0xBB,0x05,0x00,0x00,0x00,0x03,0x01,0x02}; //Command to read MiFare module device number char CARD_REQ[] = {0xAA,0xBB,0x06,0x00,0x00,0x00,0x01,0x02,0x52,0x51}; //Command to request card type of MiFare card char ANTI_COL[] = {0xAA,0xBB,0x05,0x00,0x00,0x00,0x02,02,00}; //Command for anti-collision char CARD_SEL[] = {0xAA,0xBB,0x09,0x00,0x00,0x00,0x03,0x02,0x00,0x00,0x00,0x00,0x00}; //Command to select specific MiFare card for access //Byte 0 to byte 12 of this command is initialized with 0x00, since have to obtain the NUID of the MiFare card scanned //Byte 8 to byte 11 of this command will filled with NUID (started with the lowest byte) of the MiFare card desire to access //Byte 12 of this command is checksum from byte 4 to byte 11 of this command may change for NUID different from that in this case //This array will be filled during the subroutine of the get_nuid() in this program char AUTHEN_SEC0[] = {0xAA,0xBB,0x0D,0x00,0x00,0x00,0x07,0x02,0x60,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x65}; //Command to authenticate Sector 0 in memory of MiFare card char AUTHEN_SEC1[] = {0xAA,0xBB,0x0D,0x00,0x00,0x00,0x07,0x02,0x60,0x04,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x61}; //Command to authenticate Sector 1 in memory of MiFare card char READ_0[] = {0xAA,0xBB,0x06,0x00,0x00,0x00,0x08,0x02,0x00,0x0A}; //Command to read Block 0 (manufacturer block in Sector 0) in memory of MiFare card char WRITE_4[] = {0xAA,0xBB,0x16,0x00,0x00,0x00,0x09,0x02,0x04,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x0F}; //Command to write data into Block 4 (in Sector 1) in memory of MiFare card //Data to be written (started with the lowest byte) is from byte 9 to 24, //total of 16 bytes data //Data is 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A //0x0B,0x0C,0x0D,0x0E,0x0F in this case //The last checksum byte of this command may change for data to written different from //that in this case char READ_4[] = {0xAA,0xBB,0x06,0x00,0x00,0x00,0x08,0x02,0x04,0x0E}; //Command to read data in Block 4 (in Sector 1) in memory of MiFare card /*****************************/   unsigned char reply_buffer[26]; //Buffer to store data received from MiFare module when a certain command is sent (maximum is 26 bytes in this case) unsigned char NUID[4]; //Array for storing NUID of a MiFare card char mode = 0; //Variable storing current mode of the program   void setup() { pinMode(button_1,INPUT); //Configure pins button_1 & button_2 as inputs pinMode(button_2,INPUT); digitalWrite(button_1,HIGH); //Pull-up pins button_1 & button_2 digitalWrite(button_2,HIGH);   Serial.begin(19200); //Initiallize UART serial communication with baudrate = 19200bps (default baudrate of MiFare module) lcd.begin(8,2); //Initialize the lcd object created as type 2 rows x 8 column   lcd.print("MiFare"); //Print welcome message "MiFare Demo" on LCD lcd.setCursor(0,1); lcd.print("Demo"); delay(2000); lcd.clear(); }   void loop() { lcd.setCursor(0,0); switch(mode) { case 0: //Blinking of the MiFare module onboard LED in at rate of 0.5 Hertz lcd.print("0.LED "); if(!digitalRead(button_2)) { while(!digitalRead(button_2)); while(1) { lcd.setCursor(0,1); lcd.print("LED ON "); led_on(); delay(1000); lcd.setCursor(0,1); lcd.print("LED OFF"); led_off(); delay(1000); } } break;   case 1: //Read the device number of MiFare module lcd.print("1.DEV NO"); if(!digitalRead(button_2)) { while(!digitalRead(button_2)); read_dev(); lcd.setCursor(0,1); lcd_to_hex(reply_buffer[10]); //Byte 9 and byte 10 of replied bytes (started with lowest byte)contains MiFare module device number lcd_to_hex(reply_buffer[9]); while(1); } break;   case 2: //Read the NUID of MiFare card lcd.print("2.NUID "); if(!digitalRead(button_2)) { while(!digitalRead(button_2)); get_nuid(); //NUID of MiFare card is stored in NUID[] array after execution of this subroutine //There is total of 4 bytes started with the lowest byte lcd.setCursor(0,1); for(int i = 3; i>=0; i--) { lcd_to_hex(NUID[i]); //Print out the NUID obtained on LCD } while(1); } break;   case 3: //Read the data stored in Block 0 in Sector 0 in memory of MiFare card lcd.print("3.READ0 "); if(!digitalRead(button_2)) { while(!digitalRead(button_2)); read_0(); while(1) { //Byte 9 to byte 24 of the replied bytes contains data (started with the lowest byte) read from Block 0 in Sector 0 //Due to the small screen of the LCD used, the data is printed on LCD for twice. The lower 8 bytes (started with lowest byte of the lower 8 bytes) is printed at the first time //While the upper 8 bytes (started with lowest byte of the upper 8 bytes)is printed at the second time. lcd.clear(); lcd.setCursor(0,0); lcd.print("0 to 7"); lcd.setCursor(0,1); lcd.print("byte"); delay(2000); lcd.clear(); lcd.setCursor(0,0); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[9+i]); } lcd.setCursor(0,1); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[13+i]); } delay(5000); lcd.clear(); lcd.setCursor(0,0); lcd.print("8 to 15"); lcd.setCursor(0,1); lcd.print("byte"); delay(2000); lcd.clear(); lcd.setCursor(0,0); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[17+i]); } lcd.setCursor(0,1); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[21+i]); } delay(5000); } } break; case 4: //Write data into Block 4 in Sector 1 in memory of MiFare card lcd.print("4.WRT_4 "); if(!digitalRead(button_2)) { while(!digitalRead(button_2)); write_4(); lcd.setCursor(0,1); lcd.print("Success!"); //Print "Success" on LCD to indicate a success write while(1); } break; case 5: //Read the data stored in Block 4 in Sector 1 in memory of MiFare card lcd.print("5.READ_4"); if(!digitalRead(button_2)) { while(!digitalRead(button_2)); read_4(); while(1) { //Byte 9 to byte 24 of the replied bytes contains data (started with the lowest byte) read from Block 4 in Sector 1 //Due to the small screen of the LCD used, the data is printed on LCD for twice. The lower 8 bytes (started with lowest byte of the lower 8 bytes) is printed at the first time //While the upper 8 bytes (started with lowest byte of the upper 8 bytes) is printed at the second time lcd.clear(); lcd.setCursor(0,0); lcd.print("0 to 7"); lcd.setCursor(0,1); lcd.print("byte"); delay(2000); lcd.clear(); lcd.setCursor(0,0); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[9+i]); } lcd.setCursor(0,1); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[13+i]); } delay(5000); lcd.clear(); lcd.setCursor(0,0); lcd.print("8 to 15"); lcd.setCursor(0,1); lcd.print("byte"); delay(2000); lcd.clear(); lcd.setCursor(0,0); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[17+i]); } lcd.setCursor(0,1); for(int i = 0; i<4; i++) { lcd_to_hex(reply_buffer[21+i]); } delay(5000); } } break; default: break; }   if(!digitalRead(button_1)) //Detect the pressing down of button_1, change mode accordingly { while(!digitalRead(button_1)); mode++; if(mode > 5) { mode = 0; } } }   //Turn on MiFare module LED subroutine void led_on(void) { for(int i = 0; i<10; i++) { Serial.write(LED_ON[i]); }   for(int i = 0; i<10; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Turn on MiFare module LED subroutine void led_off(void) { for(int i = 0; i<10; i++) { Serial.write(LED_OFF[i]); }   for(int i = 0; i<10; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Read MiFare device number subroutine void read_dev(void) { for(int i = 0; i<9; i++) { Serial.write(READ_DEV[i]); }   for(int i = 0; i<12; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Turn on antenna of MiFare module subroutine void antenna_on(void) { for(int i = 0; i<10; i++) { Serial.write(ANTENNA_ON[i]); }   for(int i = 0; i<10; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Request MiFare card type subroutine void card_req(void) { for(int i = 0; i<10; i++) { Serial.write(CARD_REQ[i]); }   for(int i = 0; i<12; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Perform Anti-Collison subroutine void anti_col(void) { for(int i = 0; i<9; i++) { Serial.write(ANTI_COL[i]); }   for(int i = 0; i<14; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); }   //Byte 9 to byte 12 of replied bytes contains NUID of the MiFare card //Store them in NUID[] array for(int i = 0; i<4; i++) { NUID[i] = reply_buffer[9+i]; } }   //Select MiFare card subroutine void card_sel(void) { for(int i = 0; i<13; i++) { Serial.write(CARD_SEL[i]); }   for(int i = 0; i<11; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Authenticate Sector 0 in memory of MiFare card subroutine void authen_sec0(void) { for(int i = 0; i<17; i++) { Serial.write(AUTHEN_SEC0[i]); }   for(int i = 0; i<10; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Authenticate Sector 1 in memory of MiFare card subroutine void authen_sec1(void) { for(int i = 0; i<17; i++) { Serial.write(AUTHEN_SEC1[i]); }   for(int i = 0; i<10; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Read data from Block 0 (manufaturer block) in memory of MiFare card subroutine void read_0 (void) { get_nuid(); card_sel(); //Select MiFare card authen_sec0(); //Authenticate Sector 0 in memory of MiFare card for(int i = 0; i<10; i++) { Serial.write(READ_0[i]); }   for(int i = 0; i<26; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Read data from Block 4 in memory of MiFare card subroutine void read_4(void) { get_nuid(); card_sel(); //Select MiFare card authen_sec1(); //Authenticate Sector 0 in memory of MiFare card for(int i = 0; i<10; i++) { Serial.write(READ_4[i]); }   for(int i = 0; i<26; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Write data into from Block 4 in memory of MiFare card subroutine void write_4(void) { get_nuid(); card_sel(); //Select MiFare card authen_sec1(); //Authenticate Sector 0 in memory of MiFare card for(int i = 0; i<26; i++) { Serial.write(WRITE_4[i]); }   for(int i = 0; i<10; i++) { while(!Serial.available()); reply_buffer[i] = Serial.read(); } }   //Get NUID of MiFare card subroutine void get_nuid(void) { unsigned char xor_temp = 0; antenna_on(); //On the MiFare module onboard antenna card_req(); //Request card type of MiFare card anti_col(); //Perform anti-collision   for(int i = 0; i<4; i++) //Fill up byte 8 to byte 11 of CARD_SEL[] with NUID { CARD_SEL[i+8] = NUID[i]; }   for(int i = 0; i<8; i++) //Calculate the checksum of byte 4 to byte 11 of the CARD_SEL[] { xor_temp ^= CARD_SEL[4+i]; } CARD_SEL[12] = xor_temp; //Fill the checksum in byte 12 of CARD_SEL[] }   //Print byte as hex numbers on LCD subroutine void lcd_to_hex(unsigned char byte_receive) { unsigned char byte_temp = 0; byte_temp = (byte_receive>>4) & 0x0F; lcd.print(byte_temp,HEX); byte_temp = byte_receive & 0x0F; lcd.print(byte_temp,HEX); }

---

Dans les fonctions de base tels éteindre et allumer les leds fonctionnent bien ! Donc la communication fonctionne !

j'ai écris les fonctions de la manière suivante :

Code:

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

//******************************************* //Select MiFare card subroutine void card_sel(void) { QByteArray da(CARD_SEL, sizeof(CARD_SEL)); serialRFID->write(da); //delay(200)   QByteArray ba; while(!serialRFID->isOpen()); ba = serialRFID->readAll(); qDebug() << "reception CARD_SEL :" << ba;     }   //******************************************* //Authenticate Sector 0 in memory of MiFare card subroutine void authen_sec0(void) { QByteArray da(AUTHEN_SEC0, sizeof(AUTHEN_SEC0)); serialRFID->write(da); //delay(200) QByteArray ba; while(!serialRFID->isOpen()); ba = serialRFID->readAll(); qDebug() << "reception AUTHEN_SEC0 :" << ba;   }   //******************************************* //Authenticate Sector 1 in memory of MiFare card subroutine void authen_sec1(void) { QByteArray da(AUTHEN_SEC1, sizeof(AUTHEN_SEC1)); serialRFID->write(da); //delay(200)   QByteArray ba; while(!serialRFID->isOpen()); ba = serialRFID->readAll(); qDebug() << "reception AUTHEN_SEC1 :" << ba;     }   //******************************************* //Read data from Block 0 (manufaturer block) in memory of MiFare card subroutine void read_0 (void) { get_nuid(); card_sel(); //Select MiFare card authen_sec0(); //Authenticate Sector 0 in memory of MiFare card   QByteArray da(READ_0, sizeof(READ_0)); serialRFID->write(da); //delay(200) QByteArray ba; while(!serialRFID->isOpen()); ba = serialRFID->readAll(); qDebug() << "reception READ_0 :" << ba;   }

---

Et le problème que j'ai c'est que vu j'utilise la fonction QTserialport "readAll()", je n'ai aucun moyen de fixer la taille de ce que je veux récupérer et du coup je reçoit que certaines réponses à mes commandes et bien souvent pas la correspondante à ma commande. Car les commandes sont souvent envoyé rapidement à la suite (exemple: read_0 envoi 5 commandes) et du coup cela mets le bazard... et je ne reçois qu'une réponse à la dernière lecture de réponse....

Du coup j'aimerai créer des fonctions Qt plus proches de celles utiliser par l'arduino donc en lisant et écrivant caractère par caractère....


Y-a t'il un moyen pour lire les caractère un par un sur le port série ? existe t-il une alternatve à "readAll" ?

Avez-vous déja utiliser un module RFID mifare sous Qt en c++ ?


Avez-vous des idées pour résoudre mon problème ?



Merci d'avance pour réponses !


ps: n'hésitez à me demander des précisions si besoin ;)

Apres des recherches sur le contenu de chaque réponse issue du module, les fonctions de bases comme allumer/éteindre les leds, allumer l'antenne et recuperer le numéro de serie fonctionnent bien (réponses correctes) !

Cependant je n'arrive pas à détecter de badge RFID alors qu'un badge est bien posé dessus ....

Je me demande si c'est pas un problème au niveau de la réception de donnés qui est mal paramétrée... vu que je lis tout le buffer et non caractère par caractère.


Une idée ?