cvs.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfem4x.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // Low frequency EM4x commands
   9 //-----------------------------------------------------------------------------
  10
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <inttypes.h>
  14 #include "cmdlfem4x.h"
  15
  16 char *global_em410xId;
  17
  18 static int CmdHelp(const char *Cmd);
  19
  20 int CmdEMdemodASK(const char *Cmd)
  21 {
  22         char cmdp = param_getchar(Cmd, 0);
  23         int findone = (cmdp == '1') ? 1 : 0;
  24         UsbCommand c={CMD_EM410X_DEMOD};
  25         c.arg[0]=findone;
  26         SendCommand(&c);
  27         return 0;
  28 }
  29
  30 /* Read the ID of an EM410x tag.
  31  * Format:
  32  *   1111 1111 1           <-- standard non-repeatable header
  33  *   XXXX [row parity bit] <-- 10 rows of 5 bits for our 40 bit tag ID
  34  *   ....
  35  *   CCCC                  <-- each bit here is parity for the 10 bits above in corresponding column
  36  *   0                     <-- stop bit, end of tag
  37  */
  38 int CmdEM410xRead(const char *Cmd)
  39 {
  40         uint32_t hi=0;
  41         uint64_t lo=0;
  42
  43         if(!AskEm410xDemod("", &hi, &lo, false)) return 0;
  44         PrintAndLog("EM410x pattern found: ");
  45         printEM410x(hi, lo);
  46         if (hi){
  47                 PrintAndLog ("EM410x XL pattern found");
  48                 return 0;
  49         }
  50         char id[12] = {0x00};
  51         //sprintf(id, "%010llx",lo);
  52          sprintf(id, "%010"PRIu64, lo);
  53
  54         global_em410xId = id;
  55         return 1;
  56 }
  57
  58 // emulate an EM410X tag
  59 int CmdEM410xSim(const char *Cmd)
  60 {
  61         int i, n, j, binary[4], parity[4];
  62         uint8_t uid[5] = {0x00};
  63
  64         char cmdp = param_getchar(Cmd, 0);
  65         if (cmdp == 'h' || cmdp == 'H') {
  66                 PrintAndLog("Usage:  lf em4x em410xsim <UID> <clock>");
  67                 PrintAndLog("");
  68                 PrintAndLog("     sample: lf em4x em410xsim 0F0368568B");
  69                 return 0;
  70         }
  71         /* clock is 64 in EM410x tags */
  72         uint8_t clock = 64;
  73
  74         if (param_gethex(Cmd, 0, uid, 10)) {
  75                 PrintAndLog("UID must include 10 HEX symbols");
  76                 return 0;
  77         }
  78         param_getdec(Cmd, 1, &clock);
  79
  80         PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X  clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock);
  81         PrintAndLog("Press pm3-button to about simulation");
  82
  83         /* clear our graph */
  84         ClearGraph(0);
  85
  86         /* write 9 start bits */
  87         for (i = 0; i < 9; i++)
  88                 AppendGraph(0, clock, 1);
  89
  90         /* for each hex char */
  91         parity[0] = parity[1] = parity[2] = parity[3] = 0;
  92         for (i = 0; i < 10; i++)
  93         {
  94                 /* read each hex char */
  95                 sscanf(&Cmd[i], "%1x", &n);
  96                 for (j = 3; j >= 0; j--, n/= 2)
  97                         binary[j] = n % 2;
  98
  99                 /* append each bit */
 100                 AppendGraph(0, clock, binary[0]);
 101                 AppendGraph(0, clock, binary[1]);
 102                 AppendGraph(0, clock, binary[2]);
 103                 AppendGraph(0, clock, binary[3]);
 104
 105                 /* append parity bit */
 106                 AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]);
 107
 108                 /* keep track of column parity */
 109                 parity[0] ^= binary[0];
 110                 parity[1] ^= binary[1];
 111                 parity[2] ^= binary[2];
 112                 parity[3] ^= binary[3];
 113         }
 114
 115         /* parity columns */
 116         AppendGraph(0, clock, parity[0]);
 117         AppendGraph(0, clock, parity[1]);
 118         AppendGraph(0, clock, parity[2]);
 119         AppendGraph(0, clock, parity[3]);
 120
 121         /* stop bit */
 122         AppendGraph(1, clock, 0);
 123
 124         CmdLFSim("0"); //240 start_gap.
 125         return 0;
 126 }
 127
 128 /* Function is equivalent of lf read + data samples + em410xread
 129  * looped until an EM410x tag is detected
 130  *
 131  * Why is CmdSamples("16000")?
 132  *  TBD: Auto-grow sample size based on detected sample rate.  IE: If the
 133  *       rate gets lower, then grow the number of samples
 134  *  Changed by martin, 4000 x 4 = 16000,
 135  *  see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235
 136 */
 137 int CmdEM410xWatch(const char *Cmd)
 138 {
 139         do {
 140                 if (ukbhit()) {
 141                         printf("\naborted via keyboard!\n");
 142                         break;
 143                 }
 144
 145                 CmdLFRead("s");
 146                 getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9)
 147         } while (!CmdEM410xRead(""));
 148
 149         return 0;
 150 }
 151
 152 //currently only supports manchester modulations
 153 int CmdEM410xWatchnSpoof(const char *Cmd)
 154 {
 155         CmdEM410xWatch(Cmd);
 156         PrintAndLog("# Replaying captured ID: %s",global_em410xId);
 157         CmdLFaskSim("");
 158         return 0;
 159 }
 160
 161 int CmdEM410xWrite(const char *Cmd)
 162 {
 163         uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value
 164         int card = 0xFF; // invalid card value
 165         uint32_t clock = 0; // invalid clock value
 166
 167         sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);
 168
 169         // Check ID
 170         if (id == 0xFFFFFFFFFFFFFFFF) {
 171                 PrintAndLog("Error! ID is required.\n");
 172                 return 0;
 173         }
 174         if (id >= 0x10000000000) {
 175                 PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n");
 176                 return 0;
 177         }
 178
 179         // Check Card
 180         if (card == 0xFF) {
 181                 PrintAndLog("Error! Card type required.\n");
 182                 return 0;
 183         }
 184         if (card < 0) {
 185                 PrintAndLog("Error! Bad card type selected.\n");
 186                 return 0;
 187         }
 188
 189         // Check Clock
 190                 // Default: 64
 191         if (clock == 0)
 192                 clock = 64;
 193
 194         // Allowed clock rates: 16, 32, 40 and 64
 195         if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) {
 196                 PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock);
 197                 return 0;
 198         }
 199
 200         if (card == 1) {
 201                 PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock);
 202                 // NOTE: We really should pass the clock in as a separate argument, but to
 203                 //   provide for backwards-compatibility for older firmware, and to avoid
 204                 //   having to add another argument to CMD_EM410X_WRITE_TAG, we just store
 205                 //   the clock rate in bits 8-15 of the card value
 206                 card = (card & 0xFF) | ((clock << 8) & 0xFF00);
 207         }       else if (card == 0) {
 208                 PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock);
 209                 card = (card & 0xFF) | ((clock << 8) & 0xFF00);
 210         } else {
 211                 PrintAndLog("Error! Bad card type selected.\n");
 212                 return 0;
 213         }
 214
 215         UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
 216         SendCommand(&c);
 217         return 0;
 218 }
 219
 220 bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
 221 {
 222         if (rows*cols>size) return false;
 223         uint8_t colP=0;
 224         //assume last col is a parity and do not test
 225         for (uint8_t colNum = 0; colNum < cols-1; colNum++) {
 226                 for (uint8_t rowNum = 0; rowNum < rows; rowNum++) {
 227                         colP ^= BitStream[(rowNum*cols)+colNum];
 228                 }
 229                 if (colP != pType) return false;
 230         }
 231         return true;
 232 }
 233
 234 bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
 235 {
 236         if (rows*cols>size) return false;
 237         uint8_t rowP=0;
 238         //assume last row is a parity row and do not test
 239         for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) {
 240                 for (uint8_t colNum = 0; colNum < cols; colNum++) {
 241                         rowP ^= BitStream[(rowNum*cols)+colNum];
 242                 }
 243                 if (rowP != pType) return false;
 244         }
 245         return true;
 246 }
 247
 248 uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest)
 249 {
 250         if (size<45) return 0;
 251         uint32_t code = bytebits_to_byte(BitStream,8);
 252         code = code<<8 | bytebits_to_byte(BitStream+9,8);
 253         code = code<<8 | bytebits_to_byte(BitStream+18,8);
 254         code = code<<8 | bytebits_to_byte(BitStream+27,8);
 255         if (verbose || g_debugMode){
 256                 for (uint8_t i = 0; i<5; i++){
 257                         if (i == 4) PrintAndLog(""); //parity byte spacer
 258                         PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x",
 259                             BitStream[i*9],
 260                             BitStream[i*9+1],
 261                             BitStream[i*9+2],
 262                             BitStream[i*9+3],
 263                             BitStream[i*9+4],
 264                             BitStream[i*9+5],
 265                             BitStream[i*9+6],
 266                             BitStream[i*9+7],
 267                             BitStream[i*9+8],
 268                             bytebits_to_byte(BitStream+i*9,8)
 269                         );
 270                 }
 271                 if (pTest)
 272                         PrintAndLog("Parity Passed");
 273                 else
 274                         PrintAndLog("Parity Failed");
 275         }
 276         return code;
 277 }
 278 /* Read the transmitted data of an EM4x50 tag
 279  * Format:
 280  *
 281  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 282  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 283  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 284  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 285  *  CCCCCCCC                         <- column parity bits
 286  *  0                                <- stop bit
 287  *  LW                               <- Listen Window
 288  *
 289  * This pattern repeats for every block of data being transmitted.
 290  * Transmission starts with two Listen Windows (LW - a modulated
 291  * pattern of 320 cycles each (32/32/128/64/64)).
 292  *
 293  * Note that this data may or may not be the UID. It is whatever data
 294  * is stored in the blocks defined in the control word First and Last
 295  * Word Read values. UID is stored in block 32.
 296  */
 297  //completed by Marshmellow
 298 int EM4x50Read(const char *Cmd, bool verbose)
 299 {
 300         uint8_t fndClk[] = {8,16,32,40,50,64,128};
 301         int clk = 0;
 302         int invert = 0;
 303         int tol = 0;
 304         int i, j, startblock, skip, block, start, end, low, high, minClk;
 305         bool complete = false;
 306         int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
 307         uint32_t Code[6];
 308         char tmp[6];
 309         char tmp2[20];
 310         int phaseoff;
 311         high = low = 0;
 312         memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);
 313
 314         // get user entry if any
 315         sscanf(Cmd, "%i %i", &clk, &invert);
 316
 317         // save GraphBuffer - to restore it later
 318         save_restoreGB(1);
 319
 320         // first get high and low values
 321         for (i = 0; i < GraphTraceLen; i++) {
 322                 if (GraphBuffer[i] > high)
 323                         high = GraphBuffer[i];
 324                 else if (GraphBuffer[i] < low)
 325                         low = GraphBuffer[i];
 326         }
 327
 328         i = 0;
 329         j = 0;
 330         minClk = 255;
 331         // get to first full low to prime loop and skip incomplete first pulse
 332         while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
 333                 ++i;
 334         while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 335                 ++i;
 336         skip = i;
 337
 338         // populate tmpbuff buffer with pulse lengths
 339         while (i < GraphTraceLen) {
 340                 // measure from low to low
 341                 while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 342                         ++i;
 343                 start= i;
 344                 while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
 345                         ++i;
 346                 while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 347                         ++i;
 348                 if (j>=(MAX_GRAPH_TRACE_LEN/64)) {
 349                         break;
 350                 }
 351                 tmpbuff[j++]= i - start;
 352                 if (i-start < minClk && i < GraphTraceLen) {
 353                         minClk = i - start;
 354                 }
 355         }
 356         // set clock
 357         if (!clk) {
 358                 for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) {
 359                         tol = fndClk[clkCnt]/8;
 360                         if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) {
 361                                 clk=fndClk[clkCnt];
 362                                 break;
 363                         }
 364                 }
 365                 if (!clk) return 0;
 366         } else tol = clk/8;
 367
 368         // look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2)
 369         start = -1;
 370         for (i= 0; i < j - 4 ; ++i) {
 371                 skip += tmpbuff[i];
 372                 if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
 373                         if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
 374                                 if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
 375                                         if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
 376                                         {
 377                                                 start= i + 4;
 378                                                 break;
 379                                         }
 380         }
 381         startblock = i + 4;
 382
 383         // skip over the remainder of LW
 384         skip += tmpbuff[i+1] + tmpbuff[i+2] + clk;
 385         if (tmpbuff[i+3]>clk)
 386                 phaseoff = tmpbuff[i+3]-clk;
 387         else
 388                 phaseoff = 0;
 389         // now do it again to find the end
 390         end = skip;
 391         for (i += 3; i < j - 4 ; ++i) {
 392                 end += tmpbuff[i];
 393                 if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
 394                         if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
 395                                 if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
 396                                         if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
 397                                         {
 398                                                 complete= true;
 399                                                 break;
 400                                         }
 401         }
 402         end = i;
 403         // report back
 404         if (verbose || g_debugMode) {
 405                 if (start >= 0) {
 406                         PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)");
 407                 }       else {
 408                         PrintAndLog("No data found!, clock tried:%d",clk);
 409                         PrintAndLog("Try again with more samples.");
 410                         PrintAndLog("  or after a 'data askedge' command to clean up the read");
 411                         return 0;
 412                 }
 413         } else if (start < 0) return 0;
 414         start = skip;
 415         snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47);
 416         // get rid of leading crap
 417         snprintf(tmp, sizeof(tmp), "%i", skip);
 418         CmdLtrim(tmp);
 419         bool pTest;
 420         bool AllPTest = true;
 421         // now work through remaining buffer printing out data blocks
 422         block = 0;
 423         i = startblock;
 424         while (block < 6) {
 425                 if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block);
 426                 skip = phaseoff;
 427
 428                 // look for LW before start of next block
 429                 for ( ; i < j - 4 ; ++i) {
 430                         skip += tmpbuff[i];
 431                         if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)
 432                                 if (tmpbuff[i+1] >= clk-tol)
 433                                         break;
 434                 }
 435                 if (i >= j-4) break; //next LW not found
 436                 skip += clk;
 437                 if (tmpbuff[i+1]>clk)
 438                         phaseoff = tmpbuff[i+1]-clk;
 439                 else
 440                         phaseoff = 0;
 441                 i += 2;
 442                 if (ASKDemod(tmp2, false, false, 1) < 1) {
 443                         save_restoreGB(0);
 444                         return 0;
 445                 }
 446                 //set DemodBufferLen to just one block
 447                 DemodBufferLen = skip/clk;
 448                 //test parities
 449                 pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0);
 450                 pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0);
 451                 AllPTest &= pTest;
 452                 //get output
 453                 Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest);
 454                 if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk);
 455                 //skip to start of next block
 456                 snprintf(tmp,sizeof(tmp),"%i",skip);
 457                 CmdLtrim(tmp);
 458                 block++;
 459                 if (i >= end) break; //in case chip doesn't output 6 blocks
 460         }
 461         //print full code:
 462         if (verbose || g_debugMode || AllPTest){
 463                 if (!complete) {
 464                         PrintAndLog("*** Warning!");
 465                         PrintAndLog("Partial data - no end found!");
 466                         PrintAndLog("Try again with more samples.");
 467                 }
 468                 PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);
 469                 end = block;
 470                 for (block=0; block < end; block++){
 471                         PrintAndLog("Block %d: %08x",block,Code[block]);
 472                 }
 473                 if (AllPTest) {
 474                         PrintAndLog("Parities Passed");
 475                 } else {
 476                         PrintAndLog("Parities Failed");
 477                         PrintAndLog("Try cleaning the read samples with 'data askedge'");
 478                 }
 479         }
 480
 481         //restore GraphBuffer
 482         save_restoreGB(0);
 483         return (int)AllPTest;
 484 }
 485
 486 int CmdEM4x50Read(const char *Cmd)
 487 {
 488         return EM4x50Read(Cmd, true);
 489 }
 490
 491 int CmdReadWord(const char *Cmd)
 492 {
 493         int Word = -1; //default to invalid word
 494         UsbCommand c;
 495
 496         sscanf(Cmd, "%d", &Word);
 497
 498         if ( (Word > 15) | (Word < 0) ) {
 499                 PrintAndLog("Word must be between 0 and 15");
 500                 return 1;
 501         }
 502
 503         PrintAndLog("Reading word %d", Word);
 504
 505         c.cmd = CMD_EM4X_READ_WORD;
 506         c.d.asBytes[0] = 0x0; //Normal mode
 507         c.arg[0] = 0;
 508         c.arg[1] = Word;
 509         c.arg[2] = 0;
 510         SendCommand(&c);
 511         return 0;
 512 }
 513
 514 int CmdReadWordPWD(const char *Cmd)
 515 {
 516         int Word = -1; //default to invalid word
 517         int Password = 0xFFFFFFFF; //default to blank password
 518         UsbCommand c;
 519
 520         sscanf(Cmd, "%d %x", &Word, &Password);
 521
 522         if ( (Word > 15) | (Word < 0) ) {
 523                 PrintAndLog("Word must be between 0 and 15");
 524                 return 1;
 525         }
 526
 527         PrintAndLog("Reading word %d with password %08X", Word, Password);
 528
 529         c.cmd = CMD_EM4X_READ_WORD;
 530         c.d.asBytes[0] = 0x1; //Password mode
 531         c.arg[0] = 0;
 532         c.arg[1] = Word;
 533         c.arg[2] = Password;
 534         SendCommand(&c);
 535         return 0;
 536 }
 537
 538 int CmdWriteWord(const char *Cmd)
 539 {
 540         int Word = 16; //default to invalid block
 541         int Data = 0xFFFFFFFF; //default to blank data
 542         UsbCommand c;
 543
 544         sscanf(Cmd, "%x %d", &Data, &Word);
 545
 546         if (Word > 15) {
 547                 PrintAndLog("Word must be between 0 and 15");
 548                 return 1;
 549         }
 550
 551         PrintAndLog("Writing word %d with data %08X", Word, Data);
 552
 553         c.cmd = CMD_EM4X_WRITE_WORD;
 554         c.d.asBytes[0] = 0x0; //Normal mode
 555         c.arg[0] = Data;
 556         c.arg[1] = Word;
 557         c.arg[2] = 0;
 558         SendCommand(&c);
 559         return 0;
 560 }
 561
 562 int CmdWriteWordPWD(const char *Cmd)
 563 {
 564         int Word = 16; //default to invalid word
 565         int Data = 0xFFFFFFFF; //default to blank data
 566         int Password = 0xFFFFFFFF; //default to blank password
 567         UsbCommand c;
 568
 569         sscanf(Cmd, "%x %d %x", &Data, &Word, &Password);
 570
 571         if (Word > 15) {
 572                 PrintAndLog("Word must be between 0 and 15");
 573                 return 1;
 574         }
 575
 576         PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password);
 577
 578         c.cmd = CMD_EM4X_WRITE_WORD;
 579         c.d.asBytes[0] = 0x1; //Password mode
 580         c.arg[0] = Data;
 581         c.arg[1] = Word;
 582         c.arg[2] = Password;
 583         SendCommand(&c);
 584         return 0;
 585 }
 586
 587 static command_t CommandTable[] =
 588 {
 589         {"help", CmdHelp, 1, "This help"},
 590         {"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
 591         {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"},
 592         {"em410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"},
 593         {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
 594         {"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
 595         {"em410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
 596         {"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"},
 597         {"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"},
 598         {"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"},
 599         {"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"},
 600         {"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"},
 601         {NULL, NULL, 0, NULL}
 602 };
 603
 604 int CmdLFEM4X(const char *Cmd) {
 605         clearCommandBuffer();
 606         CmdsParse(CommandTable, Cmd);
 607         return 0;
 608 }
 609
 610 int CmdHelp(const char *Cmd) {
 611         CmdsHelp(CommandTable);
 612         return 0;
 613 }