1 //----------------------------------------------------------------------------- 
   3 // This code is licensed to you under the terms of the GNU GPL, version 2 or, 
   4 // at your option, any later version. See the LICENSE.txt file for the text of 
   6 //----------------------------------------------------------------------------- 
   7 // Low frequency T55xx commands 
   8 //----------------------------------------------------------------------------- 
  14 #include "proxmark3.h" 
  18 #include "cmdparser.h" 
  21 #include "cmdlft55xx.h" 
  25 #include "../common/crc.h" 
  26 #include "../common/iso14443crc.h" 
  29 #define T55x7_CONFIGURATION_BLOCK 0x00 
  30 #define T55x7_PAGE0 0x00 
  31 #define T55x7_PAGE1 0x01 
  32 #define REGULAR_READ_MODE_BLOCK 0xFF 
  34 // Default configuration 
  35 t55xx_conf_block_t config 
= { .modulation 
= DEMOD_ASK
, .inverted 
= FALSE
, .offset 
= 0x00, .block0 
= 0x00, .Q5 
= FALSE 
}; 
  37 t55xx_conf_block_t 
Get_t55xx_Config(){ 
  40 void Set_t55xx_Config(t55xx_conf_block_t conf
){ 
  44 int usage_t55xx_config(){ 
  45         PrintAndLog("Usage: lf t55xx config [d <demodulation>] [i 1] [o <offset>] [Q5]"); 
  46         PrintAndLog("Options:"); 
  47         PrintAndLog("       h                        This help"); 
  48         PrintAndLog("       b <8|16|32|40|50|64|100|128>  Set bitrate"); 
  49         PrintAndLog("       d <FSK|FSK1|FSK1a|FSK2|FSK2a|ASK|PSK1|PSK2|NRZ|BI|BIa>  Set demodulation FSK / ASK / PSK / NRZ / Biphase / Biphase A"); 
  50         PrintAndLog("       i [1]                         Invert data signal, defaults to normal"); 
  51         PrintAndLog("       o [offset]                    Set offset, where data should start decode in bitstream"); 
  52         PrintAndLog("       Q5                            Set as Q5(T5555) chip instead of T55x7"); 
  54         PrintAndLog("Examples:"); 
  55         PrintAndLog("      lf t55xx config d FSK          - FSK demodulation"); 
  56         PrintAndLog("      lf t55xx config d FSK i 1      - FSK demodulation, inverse data"); 
  57         PrintAndLog("      lf t55xx config d FSK i 1 o 3  - FSK demodulation, inverse data, offset=3,start from position 3 to decode data"); 
  61 int usage_t55xx_read(){ 
  62         PrintAndLog("Usage:  lf t55xx read [b <block>] [p <password>] <override_safety> <page1>"); 
  63         PrintAndLog("Options:"); 
  64         PrintAndLog("     b <block>    - block number to read. Between 0-7"); 
  65         PrintAndLog("     p <password> - OPTIONAL password (8 hex characters)"); 
  66         PrintAndLog("     o            - OPTIONAL override safety check"); 
  67         PrintAndLog("     1            - OPTIONAL read Page 1 instead of Page 0"); 
  68         PrintAndLog("     ****WARNING****"); 
  69         PrintAndLog("     Use of read with password on a tag not configured for a pwd"); 
  70         PrintAndLog("     can damage the tag"); 
  72         PrintAndLog("Examples:"); 
  73         PrintAndLog("      lf t55xx read b 0              - read data from block 0"); 
  74         PrintAndLog("      lf t55xx read b 0 p feedbeef   - read data from block 0 password feedbeef"); 
  75         PrintAndLog("      lf t55xx read b 0 p feedbeef o - read data from block 0 password feedbeef safety check"); 
  79 int usage_t55xx_write(){ 
  80         PrintAndLog("Usage:  lf t55xx wr [b <block>] [d <data>] [p <password>] [1]"); 
  81         PrintAndLog("Options:"); 
  82         PrintAndLog("     b <block>    - block number to write. Between 0-7"); 
  83         PrintAndLog("     d <data>     - 4 bytes of data to write (8 hex characters)"); 
  84         PrintAndLog("     p <password> - OPTIONAL password 4bytes (8 hex characters)"); 
  85         PrintAndLog("     1            - OPTIONAL write Page 1 instead of Page 0"); 
  87         PrintAndLog("Examples:"); 
  88         PrintAndLog("      lf t55xx wr b 3 d 11223344            - write 11223344 to block 3"); 
  89         PrintAndLog("      lf t55xx wr b 3 d 11223344 p feedbeef - write 11223344 to block 3 password feedbeef"); 
  93 int usage_t55xx_trace() { 
  94         PrintAndLog("Usage:  lf t55xx trace [1]"); 
  95         PrintAndLog("Options:"); 
  96         PrintAndLog("     [graph buffer data]  - if set, use Graphbuffer otherwise read data from tag."); 
  98         PrintAndLog("Examples:"); 
  99         PrintAndLog("      lf t55xx trace"); 
 100         PrintAndLog("      lf t55xx trace 1"); 
 104 int usage_t55xx_info() { 
 105         PrintAndLog("Usage:  lf t55xx info [1]"); 
 106         PrintAndLog("Options:"); 
 107         PrintAndLog("     [graph buffer data]  - if set, use Graphbuffer otherwise read data from tag."); 
 109         PrintAndLog("Examples:"); 
 110         PrintAndLog("      lf t55xx info"); 
 111         PrintAndLog("      lf t55xx info 1"); 
 115 int usage_t55xx_dump(){ 
 116         PrintAndLog("Usage:  lf t55xx dump <password> [o]"); 
 117         PrintAndLog("Options:"); 
 118         PrintAndLog("     <password>  - OPTIONAL password 4bytes (8 hex symbols)"); 
 119         PrintAndLog("     o           - OPTIONAL override, force pwd read despite danger to card"); 
 121         PrintAndLog("Examples:"); 
 122         PrintAndLog("      lf t55xx dump"); 
 123         PrintAndLog("      lf t55xx dump feedbeef o"); 
 127 int usage_t55xx_detect(){ 
 128         PrintAndLog("Usage:  lf t55xx detect [1]"); 
 129         PrintAndLog("Options:"); 
 130         PrintAndLog("     [graph buffer data]  - if set, use Graphbuffer otherwise read data from tag."); 
 132         PrintAndLog("Examples:"); 
 133         PrintAndLog("      lf t55xx detect"); 
 134         PrintAndLog("      lf t55xx detect 1"); 
 138 int usage_t55xx_wakup(){ 
 139         PrintAndLog("Usage:  lf t55xx wakeup [h] p <password>"); 
 140         PrintAndLog("This commands send the Answer-On-Request command and leaves the readerfield ON afterwards."); 
 141         PrintAndLog("Options:"); 
 142         PrintAndLog("     h             - this help"); 
 143         PrintAndLog("     p <password>  - password 4bytes (8 hex symbols)"); 
 145         PrintAndLog("Examples:"); 
 146                 PrintAndLog("      lf t55xx wakeup p 11223344  - send wakeup password"); 
 150 static int CmdHelp(const char *Cmd
); 
 152 void printT5xxHeader(uint8_t page
){ 
 153         PrintAndLog("Reading Page %d:", page
);   
 154         PrintAndLog("blk | hex data | binary"); 
 155         PrintAndLog("----+----------+---------------------------------");        
 158 int CmdT55xxSetConfig(const char *Cmd
) { 
 161         char modulation
[5] = {0x00}; 
 164         uint8_t rates
[9] = {8,16,32,40,50,64,100,128,0}; 
 168         while(param_getchar(Cmd
, cmdp
) != 0x00 && !errors
) 
 170                 tmp 
= param_getchar(Cmd
, cmdp
); 
 175                         return usage_t55xx_config(); 
 177                         errors 
|= param_getdec(Cmd
, cmdp
+1, &bitRate
); 
 181                                         if (rates
[i
]==bitRate
) { 
 186                                 if (i
==9) errors 
= TRUE
; 
 191                         param_getstr(Cmd
, cmdp
+1, modulation
); 
 194                         if ( strcmp(modulation
, "FSK" ) == 0) { 
 195                                 config
.modulation 
= DEMOD_FSK
; 
 196                         } else if ( strcmp(modulation
, "FSK1" ) == 0) { 
 197                                 config
.modulation 
= DEMOD_FSK1
; 
 199                         } else if ( strcmp(modulation
, "FSK1a" ) == 0) { 
 200                                 config
.modulation 
= DEMOD_FSK1a
; 
 202                         } else if ( strcmp(modulation
, "FSK2" ) == 0) { 
 203                                 config
.modulation 
= DEMOD_FSK2
; 
 205                         } else if ( strcmp(modulation
, "FSK2a" ) == 0) { 
 206                                 config
.modulation 
= DEMOD_FSK2a
; 
 208                         } else if ( strcmp(modulation
, "ASK" ) == 0) { 
 209                                 config
.modulation 
= DEMOD_ASK
; 
 210                         } else if ( strcmp(modulation
, "NRZ" ) == 0) { 
 211                                 config
.modulation 
= DEMOD_NRZ
; 
 212                         } else if ( strcmp(modulation
, "PSK1" ) == 0) { 
 213                                 config
.modulation 
= DEMOD_PSK1
; 
 214                         } else if ( strcmp(modulation
, "PSK2" ) == 0) { 
 215                                 config
.modulation 
= DEMOD_PSK2
; 
 216                         } else if ( strcmp(modulation
, "PSK3" ) == 0) { 
 217                                 config
.modulation 
= DEMOD_PSK3
; 
 218                         } else if ( strcmp(modulation
, "BIa" ) == 0) { 
 219                                 config
.modulation 
= DEMOD_BIa
; 
 221                         } else if ( strcmp(modulation
, "BI" ) == 0) { 
 222                                 config
.modulation 
= DEMOD_BI
; 
 225                                 PrintAndLog("Unknown modulation '%s'", modulation
); 
 230                         config
.inverted 
= param_getchar(Cmd
,cmdp
+1) == '1'; 
 234                         errors 
|= param_getdec(Cmd
, cmdp
+1, &offset
); 
 236                                 config
.offset 
= offset
; 
 245                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd
, cmdp
)); 
 252         if (cmdp 
== 0) return printConfiguration( config 
); 
 255         if (errors
) return usage_t55xx_config(); 
 258         return printConfiguration ( config 
); 
 261 int T55xxReadBlock(uint8_t block
, bool page1
, bool usepwd
, bool override
, uint32_t password
){ 
 264                 // try reading the config block and verify that PWD bit is set before doing this! 
 266                         if ( !AquireData(T55x7_PAGE0
, T55x7_CONFIGURATION_BLOCK
, false, 0 ) ) return 0; 
 267                         if ( !tryDetectModulation() ) { 
 268                                 PrintAndLog("Safety Check: Could not detect if PWD bit is set in config block. Exits."); 
 271                                 PrintAndLog("Safety Check: PWD bit is NOT set in config block. Reading without password...");    
 276                         PrintAndLog("Safety Check Overriden - proceeding despite risk"); 
 280         if (!AquireData(page1
, block
, usepwd
, password
) )       return 0; 
 281         if (!DecodeT55xxBlock()) return 0; 
 284         sprintf(blk
,"%d", block
); 
 285         printT55xxBlock(blk
);    
 289 int CmdT55xxReadBlock(const char *Cmd
) { 
 290         uint8_t block 
= REGULAR_READ_MODE_BLOCK
; 
 291         uint32_t password 
= 0; //default to blank Block 7 
 293         bool override 
= false; 
 297         while(param_getchar(Cmd
, cmdp
) != 0x00 && !errors
) { 
 298                 switch(param_getchar(Cmd
, cmdp
)) { 
 301                         return usage_t55xx_read(); 
 304                         errors 
|= param_getdec(Cmd
, cmdp
+1, &block
); 
 314                         password 
= param_get32ex(Cmd
, cmdp
+1, 0, 16); 
 323                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd
, cmdp
)); 
 328         if (errors
) return usage_t55xx_read(); 
 330         if (block 
> 7 && block 
!= REGULAR_READ_MODE_BLOCK       
) { 
 331                 PrintAndLog("Block must be between 0 and 7"); 
 335         printT5xxHeader(page1
); 
 336         return T55xxReadBlock(block
, page1
, usepwd
, override
, password
); 
 339 bool DecodeT55xxBlock(){ 
 341         char buf
[30] = {0x00}; 
 344         uint8_t bitRate
[8] = {8,16,32,40,50,64,100,128}; 
 345         DemodBufferLen 
= 0x00; 
 347         switch( config
.modulation 
){ 
 349                         snprintf(cmdStr
, sizeof(buf
),"%d %d", bitRate
[config
.bitrate
], config
.inverted 
); 
 350                         ans 
= FSKrawDemod(cmdStr
, FALSE
); 
 354                         snprintf(cmdStr
, sizeof(buf
),"%d %d 8 5", bitRate
[config
.bitrate
], config
.inverted 
); 
 355                         ans 
= FSKrawDemod(cmdStr
, FALSE
); 
 359                         snprintf(cmdStr
, sizeof(buf
),"%d %d 10 8", bitRate
[config
.bitrate
], config
.inverted 
); 
 360                         ans 
= FSKrawDemod(cmdStr
, FALSE
); 
 363                         snprintf(cmdStr
, sizeof(buf
),"%d %d 1", bitRate
[config
.bitrate
], config
.inverted 
); 
 364                         ans 
= ASKDemod(cmdStr
, FALSE
, FALSE
, 1); 
 367                         // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) 
 369                         snprintf(cmdStr
, sizeof(buf
),"%d %d 6", bitRate
[config
.bitrate
], config
.inverted 
); 
 370                         ans 
= PSKDemod(cmdStr
, FALSE
); 
 372                 case DEMOD_PSK2
: //inverted won't affect this 
 373                 case DEMOD_PSK3
: //not fully implemented 
 374                         // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) 
 376                         snprintf(cmdStr
, sizeof(buf
),"%d 0 6", bitRate
[config
.bitrate
] ); 
 377                         ans 
= PSKDemod(cmdStr
, FALSE
); 
 378                         psk1TOpsk2(DemodBuffer
, DemodBufferLen
); 
 381                         snprintf(cmdStr
, sizeof(buf
),"%d %d 1", bitRate
[config
.bitrate
], config
.inverted 
); 
 382                         ans 
= NRZrawDemod(cmdStr
, FALSE
); 
 386                         snprintf(cmdStr
, sizeof(buf
),"0 %d %d 1", bitRate
[config
.bitrate
], config
.inverted 
); 
 387                         ans 
= ASKbiphaseDemod(cmdStr
, FALSE
); 
 395 int CmdT55xxDetect(const char *Cmd
){ 
 397         uint32_t password 
= 0; //default to blank Block 7 
 399         char cmdp 
= param_getchar(Cmd
, 0); 
 400         if (strlen(Cmd
) > 1 || cmdp 
== 'h' || cmdp 
== 'H') return usage_t55xx_detect(); 
 402         bool usepwd 
= ( strlen(Cmd
) > 0);        
 404                 password 
= param_get32ex(Cmd
, 0, 0, 16); 
 405                 // if (param_getchar(Cmd, 1) =='o' ) 
 410         if (strlen(Cmd
)==1) { 
 411                 password 
= param_get32ex(Cmd
, 0, 0, 16); 
 412                 //if (param_getchar(Cmd, 1) =='o' ) override = true; 
 415         if ( !AquireData(T55x7_PAGE0
, T55x7_CONFIGURATION_BLOCK
, usepwd
, password
) ) 
 418         if ( !tryDetectModulation() ) 
 419                 PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'"); 
 424 // detect configuration? 
 425 bool tryDetectModulation(){ 
 427         t55xx_conf_block_t tests
[15]; 
 429         uint8_t fc1 
= 0, fc2 
= 0, clk
=0; 
 432         if (GetFskClock("", FALSE
, FALSE
)){  
 433                 fskClocks(&fc1
, &fc2
, &clk
, FALSE
); 
 434                 if ( FSKrawDemod("0 0", FALSE
) && test(DEMOD_FSK
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)){ 
 435                         tests
[hits
].modulation 
= DEMOD_FSK
; 
 436                         if (fc1
==8 && fc2 
== 5) 
 437                                 tests
[hits
].modulation 
= DEMOD_FSK1a
; 
 438                         else if (fc1
==10 && fc2 
== 8) 
 439                                 tests
[hits
].modulation 
= DEMOD_FSK2
; 
 440                         tests
[hits
].bitrate 
= bitRate
; 
 441                         tests
[hits
].inverted 
= FALSE
; 
 442                         tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 445                 if ( FSKrawDemod("0 1", FALSE
) && test(DEMOD_FSK
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)) { 
 446                         tests
[hits
].modulation 
= DEMOD_FSK
; 
 447                         if (fc1 
== 8 && fc2 
== 5) 
 448                                 tests
[hits
].modulation 
= DEMOD_FSK1
; 
 449                         else if (fc1 
== 10 && fc2 
== 8) 
 450                                 tests
[hits
].modulation 
= DEMOD_FSK2a
; 
 452                         tests
[hits
].bitrate 
= bitRate
; 
 453                         tests
[hits
].inverted 
= TRUE
; 
 454                         tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 458                 clk 
= GetAskClock("", FALSE
, FALSE
); 
 460                         if ( ASKDemod("0 0 1", FALSE
, FALSE
, 1) && test(DEMOD_ASK
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)) { 
 461                                 tests
[hits
].modulation 
= DEMOD_ASK
; 
 462                                 tests
[hits
].bitrate 
= bitRate
; 
 463                                 tests
[hits
].inverted 
= FALSE
; 
 464                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 467                         if ( ASKDemod("0 1 1", FALSE
, FALSE
, 1)  && test(DEMOD_ASK
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)) { 
 468                                 tests
[hits
].modulation 
= DEMOD_ASK
; 
 469                                 tests
[hits
].bitrate 
= bitRate
; 
 470                                 tests
[hits
].inverted 
= TRUE
; 
 471                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 474                         if ( ASKbiphaseDemod("0 0 0 2", FALSE
) && test(DEMOD_BI
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
) ) { 
 475                                 tests
[hits
].modulation 
= DEMOD_BI
; 
 476                                 tests
[hits
].bitrate 
= bitRate
; 
 477                                 tests
[hits
].inverted 
= FALSE
; 
 478                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 481                         if ( ASKbiphaseDemod("0 0 1 2", FALSE
) && test(DEMOD_BIa
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
) ) { 
 482                                 tests
[hits
].modulation 
= DEMOD_BIa
; 
 483                                 tests
[hits
].bitrate 
= bitRate
; 
 484                                 tests
[hits
].inverted 
= TRUE
; 
 485                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 491                 clk 
= GetNrzClock("", FALSE
, FALSE
); 
 493                         if ( NRZrawDemod("0 0 1", FALSE
)  && test(DEMOD_NRZ
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)) { 
 494                                 tests
[hits
].modulation 
= DEMOD_NRZ
; 
 495                                 tests
[hits
].bitrate 
= bitRate
; 
 496                                 tests
[hits
].inverted 
= FALSE
; 
 497                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 501                         if ( NRZrawDemod("0 1 1", FALSE
)  && test(DEMOD_NRZ
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)) { 
 502                                 tests
[hits
].modulation 
= DEMOD_NRZ
; 
 503                                 tests
[hits
].bitrate 
= bitRate
; 
 504                                 tests
[hits
].inverted 
= TRUE
; 
 505                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 512                 // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) 
 514                 clk 
= GetPskClock("", FALSE
, FALSE
); 
 516                         if ( PSKDemod("0 0 6", FALSE
) && test(DEMOD_PSK1
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)) { 
 517                                 tests
[hits
].modulation 
= DEMOD_PSK1
; 
 518                                 tests
[hits
].bitrate 
= bitRate
; 
 519                                 tests
[hits
].inverted 
= FALSE
; 
 520                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 523                         if ( PSKDemod("0 1 6", FALSE
) && test(DEMOD_PSK1
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)) { 
 524                                 tests
[hits
].modulation 
= DEMOD_PSK1
; 
 525                                 tests
[hits
].bitrate 
= bitRate
; 
 526                                 tests
[hits
].inverted 
= TRUE
; 
 527                                 tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 530                         // PSK2 - needs a call to psk1TOpsk2. 
 531                         if ( PSKDemod("0 0 6", FALSE
)) { 
 532                                 psk1TOpsk2(DemodBuffer
, DemodBufferLen
); 
 533                                 if (test(DEMOD_PSK2
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)){ 
 534                                         tests
[hits
].modulation 
= DEMOD_PSK2
; 
 535                                         tests
[hits
].bitrate 
= bitRate
; 
 536                                         tests
[hits
].inverted 
= FALSE
; 
 537                                         tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 540                         } // inverse waves does not affect this demod 
 541                         // PSK3 - needs a call to psk1TOpsk2. 
 542                         if ( PSKDemod("0 0 6", FALSE
)) { 
 543                                 psk1TOpsk2(DemodBuffer
, DemodBufferLen
); 
 544                                 if (test(DEMOD_PSK3
, &tests
[hits
].offset
, &bitRate
, clk
, &tests
[hits
].Q5
)){ 
 545                                         tests
[hits
].modulation 
= DEMOD_PSK3
; 
 546                                         tests
[hits
].bitrate 
= bitRate
; 
 547                                         tests
[hits
].inverted 
= FALSE
; 
 548                                         tests
[hits
].block0 
= PackBits(tests
[hits
].offset
, 32, DemodBuffer
); 
 551                         } // inverse waves does not affect this demod 
 556                 config
.modulation 
= tests
[0].modulation
; 
 557                 config
.bitrate 
= tests
[0].bitrate
; 
 558                 config
.inverted 
= tests
[0].inverted
; 
 559                 config
.offset 
= tests
[0].offset
; 
 560                 config
.block0 
= tests
[0].block0
; 
 561                 printConfiguration( config 
); 
 566                 PrintAndLog("Found [%d] possible matches for modulation.",hits
); 
 567                 for(int i
=0; i
<hits
; ++i
){ 
 568                         PrintAndLog("--[%d]---------------", i
+1); 
 569                         printConfiguration( tests
[i
] ); 
 575 bool testModulation(uint8_t mode
, uint8_t modread
){ 
 578                         if (modread 
>= DEMOD_FSK1 
&& modread 
<= DEMOD_FSK2a
) return TRUE
; 
 581                         if (modread 
== DEMOD_ASK
) return TRUE
; 
 584                         if (modread 
== DEMOD_PSK1
) return TRUE
; 
 587                         if (modread 
== DEMOD_PSK2
) return TRUE
; 
 590                         if (modread 
== DEMOD_PSK3
) return TRUE
; 
 593                         if (modread 
== DEMOD_NRZ
) return TRUE
; 
 596                         if (modread 
== DEMOD_BI
) return TRUE
; 
 599                         if (modread 
== DEMOD_BIa
) return TRUE
; 
 607 bool testQ5Modulation(uint8_t   mode
, uint8_t   modread
){ 
 610                         if (modread 
>= 4 && modread 
<= 5) return TRUE
; 
 613                         if (modread 
== 0) return TRUE
; 
 616                         if (modread 
== 1) return TRUE
; 
 619                         if (modread 
== 2) return TRUE
; 
 622                         if (modread 
== 3) return TRUE
; 
 625                         if (modread 
== 7) return TRUE
; 
 628                         if (modread 
== 6) return TRUE
; 
 636 bool testQ5(uint8_t mode
, uint8_t *offset
, int *fndBitRate
, uint8_t     clk
){ 
 638         if ( DemodBufferLen 
< 64 ) return FALSE
; 
 640         for (uint8_t idx 
= 28; idx 
< 64; idx
++){ 
 642                 if ( PackBits(si
, 28, DemodBuffer
) == 0x00 ) continue; 
 644                 uint8_t safer     
= PackBits(si
, 4, DemodBuffer
); si 
+= 4;     //master key 
 645                 uint8_t resv      
= PackBits(si
, 8, DemodBuffer
); si 
+= 8; 
 646                 // 2nibble must be zeroed. 
 647                 if (safer 
!= 0x6) continue; 
 648                 if ( resv 
> 0x00) continue; 
 649                 //uint8_t       pageSel   = PackBits(si, 1, DemodBuffer); si += 1; 
 650                 //uint8_t fastWrite = PackBits(si, 1, DemodBuffer); si += 1; 
 652                 int bitRate       
= PackBits(si
, 5, DemodBuffer
)*2 + 2; si 
+= 5;     //bit rate 
 653                 if (bitRate 
> 128 || bitRate 
< 8) continue; 
 655                 //uint8_t AOR       = PackBits(si, 1, DemodBuffer); si += 1;    
 656                 //uint8_t PWD       = PackBits(si, 1, DemodBuffer); si += 1;  
 657                 //uint8_t pskcr     = PackBits(si, 2, DemodBuffer); si += 2;  //could check psk cr 
 658                 //uint8_t inverse   = PackBits(si, 1, DemodBuffer); si += 1; 
 660                 uint8_t modread   
= PackBits(si
, 3, DemodBuffer
); si 
+= 3; 
 661                 uint8_t maxBlk    
= PackBits(si
, 3, DemodBuffer
); si 
+= 3; 
 662                 //uint8_t ST        = PackBits(si, 1, DemodBuffer); si += 1; 
 663                 if (maxBlk 
== 0) continue; 
 665                 if (!testQ5Modulation(mode
, modread
)) continue; 
 666                 if (bitRate 
!= clk
) continue; 
 667                 *fndBitRate 
= bitRate
; 
 675 bool testBitRate(uint8_t readRate
, uint8_t clk
){ 
 676         uint8_t expected
[] = {8, 16, 32, 40, 50, 64, 100, 128}; 
 677         if (expected
[readRate
] == clk
) 
 683 bool test(uint8_t mode
, uint8_t *offset
, int *fndBitRate
, uint8_t clk
, bool *Q5
){ 
 685         if ( DemodBufferLen 
< 64 ) return FALSE
; 
 687         for (uint8_t idx 
= 28; idx 
< 64; idx
++){ 
 689                 if ( PackBits(si
, 28, DemodBuffer
) == 0x00 ) continue; 
 691                 uint8_t safer    
= PackBits(si
, 4, DemodBuffer
); si 
+= 4;     //master key 
 692                 uint8_t resv     
= PackBits(si
, 4, DemodBuffer
); si 
+= 4;     //was 7 & +=7+3 //should be only 4 bits if extended mode 
 693                 // 2nibble must be zeroed. 
 694                 // moved test to here, since this gets most faults first. 
 695                 if ( resv 
> 0x00) continue; 
 697                 uint8_t xtRate   
= PackBits(si
, 3, DemodBuffer
); si 
+= 3;     //extended mode part of rate 
 698                 int bitRate      
= PackBits(si
, 3, DemodBuffer
); si 
+= 3;     //bit rate 
 699                 if (bitRate 
> 7) continue; 
 700                 uint8_t extend   
= PackBits(si
, 1, DemodBuffer
); si 
+= 1;     //bit 15 extended mode 
 701                 uint8_t modread  
= PackBits(si
, 5, DemodBuffer
); si 
+= 5+2+1;  
 702                 //uint8_t pskcr   = PackBits(si, 2, DemodBuffer); si += 2+1;  //could check psk cr 
 703                 uint8_t nml01    
= PackBits(si
, 1, DemodBuffer
); si 
+= 1+5;   //bit 24, 30, 31 could be tested for 0 if not extended mode 
 704                 uint8_t nml02    
= PackBits(si
, 2, DemodBuffer
); si 
+= 2; 
 707                 bool extMode 
=( (safer 
== 0x6 || safer 
== 0x9) && extend
) ? TRUE 
: FALSE
; 
 710                         if (nml01 
|| nml02 
|| xtRate
) continue; 
 713                 if (!testModulation(mode
, modread
)) continue; 
 714                 if (!testBitRate(bitRate
, clk
)) continue; 
 715                 *fndBitRate 
= bitRate
; 
 720         if (testQ5(mode
, offset
, fndBitRate
, clk
)) { 
 727 void printT55xxBlock(const char *blockNum
){ 
 729         uint8_t i 
= config
.offset
; 
 730         uint8_t endpos 
= 32 + i
; 
 731         uint32_t blockData 
= 0; 
 732         uint8_t bits
[64] = {0x00}; 
 734         if ( !DemodBufferLen
) return; 
 736         if ( endpos 
> DemodBufferLen
){ 
 737                 PrintAndLog("The configured offset %d is too big. Possible offset: %d)", i
, DemodBufferLen
-32); 
 741         for (; i 
< endpos
; ++i
) 
 742                 bits
[i 
- config
.offset
]=DemodBuffer
[i
]; 
 744         blockData 
= PackBits(0, 32, bits
); 
 746         PrintAndLog("  %s | %08X | %s", blockNum
, blockData
, sprint_bin(bits
,32)); 
 749 int special(const char *Cmd
) { 
 750         uint32_t blockData 
= 0; 
 751         uint8_t bits
[32] = {0x00}; 
 753         PrintAndLog("OFFSET | DATA       | BINARY"); 
 754         PrintAndLog("----------------------------------------------------"); 
 758                 for (i 
= 0; i 
< 32; ++i
) 
 759                         bits
[i
]=DemodBuffer
[j
+i
]; 
 761                 blockData 
= PackBits(0, 32, bits
); 
 763                 PrintAndLog("    %02d | 0x%08X | %s",j 
, blockData
, sprint_bin(bits
,32));        
 768 int printConfiguration( t55xx_conf_block_t b
){ 
 769         PrintAndLog("Chip Type  : %s", (b
.Q5
) ? "T5555(Q5)" : "T55x7"); 
 770         PrintAndLog("Modulation : %s", GetSelectedModulationStr(b
.modulation
) ); 
 771         PrintAndLog("Bit Rate   : %s", GetBitRateStr(b
.bitrate
) ); 
 772         PrintAndLog("Inverted   : %s", (b
.inverted
) ? "Yes" : "No" ); 
 773         PrintAndLog("Offset     : %d", b
.offset
); 
 774         PrintAndLog("Block0     : 0x%08X", b
.block0
); 
 779 int CmdT55xxWakeUp(const char *Cmd
) { 
 780         uint32_t password 
= 0; 
 783         while(param_getchar(Cmd
, cmdp
) != 0x00) { 
 784                 switch(param_getchar(Cmd
, cmdp
)) { 
 787                         return usage_t55xx_wakup(); 
 790                         password 
= param_get32ex(Cmd
, cmdp
+1, 0xFFFFFFFF, 16); 
 795                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd
, cmdp
)); 
 800         if (errors
) return usage_t55xx_wakup(); 
 802         UsbCommand c 
= {CMD_T55XX_WAKEUP
, {password
, 0, 0}}; 
 803         clearCommandBuffer(); 
 805         PrintAndLog("Wake up command sent. Try read now"); 
 809 int CmdT55xxWriteBlock(const char *Cmd
) { 
 810         uint8_t block 
= 0xFF; //default to invalid block 
 811         uint32_t data 
= 0; //default to blank Block  
 812         uint32_t password 
= 0; //default to blank Block 7 
 815         bool gotdata 
= false; 
 818         while(param_getchar(Cmd
, cmdp
) != 0x00 && !errors
) { 
 819                 switch(param_getchar(Cmd
, cmdp
)) { 
 822                         return usage_t55xx_write(); 
 825                         errors 
|= param_getdec(Cmd
, cmdp
+1, &block
); 
 830                         data 
= param_get32ex(Cmd
, cmdp
+1, 0, 16); 
 836                         password 
= param_get32ex(Cmd
, cmdp
+1, 0, 16); 
 845                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd
, cmdp
)); 
 850         if (errors 
|| !gotdata
) return usage_t55xx_write(); 
 853                 PrintAndLog("Block number must be between 0 and 7"); 
 857         UsbCommand c 
= {CMD_T55XX_WRITE_BLOCK
, {data
, block
, 0}}; 
 859         c
.d
.asBytes
[0] = (page1
) ? 0x2 : 0;  
 861         char pwdStr
[16] = {0}; 
 862         snprintf(pwdStr
, sizeof(pwdStr
), "pwd: 0x%08X", password
); 
 864         PrintAndLog("Writing page %d  block: %02d  data: 0x%08X %s", page1
, block
, data
,  (usepwd
) ? pwdStr 
: "" ); 
 869                 c
.d
.asBytes
[0] |= 0x1;  
 871         clearCommandBuffer(); 
 873         if (!WaitForResponseTimeout(CMD_ACK
, &resp
, 1000)){ 
 874                 PrintAndLog("Error occurred, device did not ACK write operation. (May be due to old firmware)"); 
 880 int CmdT55xxReadTrace(const char *Cmd
) { 
 881         char cmdp 
= param_getchar(Cmd
, 0); 
 882         bool pwdmode 
= false; 
 883         uint32_t password 
= 0; 
 884         if (strlen(Cmd
) > 1 || cmdp 
== 'h' || cmdp 
== 'H')  
 885                 return usage_t55xx_trace(); 
 888                 if ( !AquireData( T55x7_PAGE1
, REGULAR_READ_MODE_BLOCK
, pwdmode
, password 
) ) 
 891         if (!DecodeT55xxBlock()) return 0; 
 893         if ( !DemodBufferLen
) return 0; 
 895         RepaintGraphWindow(); 
 897         if (config
.offset 
> 5)  
 899         uint8_t si 
= config
.offset
+repeat
; 
 900         uint32_t bl1     
= PackBits(si
, 32, DemodBuffer
); 
 901         uint32_t bl2     
= PackBits(si
+32, 32, DemodBuffer
); 
 903         uint32_t acl     
= PackBits(si
, 8,  DemodBuffer
); si 
+= 8; 
 904         uint32_t mfc     
= PackBits(si
, 8,  DemodBuffer
); si 
+= 8; 
 905         uint32_t cid     
= PackBits(si
, 5,  DemodBuffer
); si 
+= 5; 
 906         uint32_t icr     
= PackBits(si
, 3,  DemodBuffer
); si 
+= 3; 
 907         uint32_t year    
= PackBits(si
, 4,  DemodBuffer
); si 
+= 4; 
 908         uint32_t quarter 
= PackBits(si
, 2,  DemodBuffer
); si 
+= 2; 
 909         uint32_t lotid   
= PackBits(si
, 14, DemodBuffer
); si 
+= 14; 
 910         uint32_t wafer   
= PackBits(si
, 5,  DemodBuffer
); si 
+= 5; 
 911         uint32_t dw      
= PackBits(si
, 15, DemodBuffer
);  
 913         time_t t 
= time(NULL
); 
 914         struct tm tm 
= *localtime(&t
); 
 915         if ( year 
> tm
.tm_year
-110) 
 920         if (config
.Q5
) PrintAndLog("*** Warning *** Info read off a Q5 will not work as expected"); 
 922                 PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. "); 
 926         PrintAndLog("-- T55xx Trace Information ----------------------------------"); 
 927         PrintAndLog("-------------------------------------------------------------"); 
 928         PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1)  : 0x%02X (%d)", acl
, acl
); 
 929         PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6)    : 0x%02X (%d) - %s", mfc
, mfc
, getTagInfo(mfc
)); 
 930         PrintAndLog(" CID                                     : 0x%02X (%d) - %s", cid
, cid
, GetModelStrFromCID(cid
)); 
 931         PrintAndLog(" ICR IC Revision                         : %d",icr 
); 
 932         PrintAndLog(" Manufactured"); 
 933         PrintAndLog("     Year/Quarter : %d/%d",year
, quarter
); 
 934         PrintAndLog("     Lot ID       : %d", lotid 
); 
 935         PrintAndLog("     Wafer number : %d", wafer
); 
 936         PrintAndLog("     Die Number   : %d", dw
); 
 937         PrintAndLog("-------------------------------------------------------------"); 
 938         PrintAndLog(" Raw Data - Page 1"); 
 939         PrintAndLog("     Block 1  : 0x%08X  %s", bl1
, sprint_bin(DemodBuffer
+config
.offset
+repeat
,32) ); 
 940         PrintAndLog("     Block 2  : 0x%08X  %s", bl2
, sprint_bin(DemodBuffer
+config
.offset
+repeat
+32,32) ); 
 941         PrintAndLog("-------------------------------------------------------------"); 
 946                 1-8             ACL Allocation class (ISO/IEC 15963-1)  0xE0  
 947                 9-16    MFC Manufacturer ID (ISO/IEC 7816-6)    0x15 Atmel Corporation 
 948                 17-21   CID                                                                             0x1 = Atmel ATA5577M1  0x2 = Atmel ATA5577M2  
 949                 22-24   ICR IC revision 
 950                 25-28   YEAR (BCD encoded)                                              9 (= 2009) 
 951                 29-30   QUARTER                                                                 1,2,3,4  
 957                 18-32   DW,  die number sequential 
 963 int CmdT55xxInfo(const char *Cmd
){ 
 965                 Page 0 Block 0 Configuration data. 
 969         bool pwdmode 
= false; 
 970         uint32_t password 
= 0; 
 971         char cmdp 
= param_getchar(Cmd
, 0); 
 973         if (strlen(Cmd
) > 1 || cmdp 
== 'h' || cmdp 
== 'H') 
 974                 return usage_t55xx_info(); 
 977                 if ( !AquireData( T55x7_PAGE0
, T55x7_CONFIGURATION_BLOCK
, pwdmode
, password 
) ) 
 980         if (!DecodeT55xxBlock()) return 1; 
 982         if ( DemodBufferLen 
< 32) return 1; 
 984         uint8_t si 
= config
.offset
; 
 985         uint32_t bl0      
= PackBits(si
, 32, DemodBuffer
); 
 987         uint32_t safer    
= PackBits(si
, 4, DemodBuffer
); si 
+= 4;       
 988         uint32_t resv     
= PackBits(si
, 7, DemodBuffer
); si 
+= 7; 
 989         uint32_t dbr      
= PackBits(si
, 3, DemodBuffer
); si 
+= 3; 
 990         uint32_t extend   
= PackBits(si
, 1, DemodBuffer
); si 
+= 1; 
 991         uint32_t datamod  
= PackBits(si
, 5, DemodBuffer
); si 
+= 5; 
 992         uint32_t pskcf    
= PackBits(si
, 2, DemodBuffer
); si 
+= 2; 
 993         uint32_t aor      
= PackBits(si
, 1, DemodBuffer
); si 
+= 1;       
 994         uint32_t otp      
= PackBits(si
, 1, DemodBuffer
); si 
+= 1;       
 995         uint32_t maxblk   
= PackBits(si
, 3, DemodBuffer
); si 
+= 3; 
 996         uint32_t pwd      
= PackBits(si
, 1, DemodBuffer
); si 
+= 1;       
 997         uint32_t sst      
= PackBits(si
, 1, DemodBuffer
); si 
+= 1;       
 998         uint32_t fw       
= PackBits(si
, 1, DemodBuffer
); si 
+= 1; 
 999         uint32_t inv      
= PackBits(si
, 1, DemodBuffer
); si 
+= 1;       
1000         uint32_t por      
= PackBits(si
, 1, DemodBuffer
); si 
+= 1; 
1001         if (config
.Q5
) PrintAndLog("*** Warning *** Config Info read off a Q5 will not display as expected"); 
1003         PrintAndLog("-- T55xx Configuration & Tag Information --------------------"); 
1004         PrintAndLog("-------------------------------------------------------------"); 
1005         PrintAndLog(" Safer key                 : %s", GetSaferStr(safer
)); 
1006         PrintAndLog(" reserved                  : %d", resv
); 
1007         PrintAndLog(" Data bit rate             : %s", GetBitRateStr(dbr
)); 
1008         PrintAndLog(" eXtended mode             : %s", (extend
) ? "Yes - Warning":"No"); 
1009         PrintAndLog(" Modulation                : %s", GetModulationStr(datamod
)); 
1010         PrintAndLog(" PSK clock frequency       : %d", pskcf
); 
1011         PrintAndLog(" AOR - Answer on Request   : %s", (aor
) ? "Yes":"No"); 
1012         PrintAndLog(" OTP - One Time Pad        : %s", (otp
) ? "Yes - Warning":"No" ); 
1013         PrintAndLog(" Max block                 : %d", maxblk
); 
1014         PrintAndLog(" Password mode             : %s", (pwd
) ? "Yes":"No"); 
1015         PrintAndLog(" Sequence Start Terminator : %s", (sst
) ? "Yes":"No"); 
1016         PrintAndLog(" Fast Write                : %s", (fw
)  ? "Yes":"No"); 
1017         PrintAndLog(" Inverse data              : %s", (inv
) ? "Yes":"No"); 
1018         PrintAndLog(" POR-Delay                 : %s", (por
) ? "Yes":"No"); 
1019         PrintAndLog("-------------------------------------------------------------"); 
1020         PrintAndLog(" Raw Data - Page 0"); 
1021         PrintAndLog("     Block 0  : 0x%08X  %s", bl0
, sprint_bin(DemodBuffer
+config
.offset
,32) ); 
1022         PrintAndLog("-------------------------------------------------------------"); 
1027 int CmdT55xxDump(const char *Cmd
){ 
1029         uint32_t password 
= 0; 
1030         char cmdp 
= param_getchar(Cmd
, 0); 
1031         bool override 
= false; 
1032         if ( cmdp 
== 'h' || cmdp 
== 'H') return usage_t55xx_dump(); 
1034         bool usepwd 
= ( strlen(Cmd
) > 0);        
1036                 password 
= param_get32ex(Cmd
, 0, 0, 16); 
1037                 if (param_getchar(Cmd
, 1) =='o' ) 
1042         for ( uint8_t i 
= 0; i 
<8; ++i
) 
1043                 T55xxReadBlock(i
, 0, usepwd
, override
, password
); 
1046         for ( uint8_t   i 
= 0; i
<4; i
++) 
1047                 T55xxReadBlock(i
, 1, usepwd
, override
, password
);                
1052 int AquireData( uint8_t page
, uint8_t block
, bool pwdmode
, uint32_t password 
){ 
1055         // bit1 = page to read from 
1056         uint8_t arg0 
= (page
<<1) | pwdmode
; 
1057         UsbCommand c 
= {CMD_T55XX_READ_BLOCK
, {arg0
, block
, password
}}; 
1059         clearCommandBuffer(); 
1061         if ( !WaitForResponseTimeout(CMD_ACK
,NULL
,2500) ) { 
1062                 PrintAndLog("command execution time out"); 
1067         GetFromBigBuf(got
,sizeof(got
),0); 
1068         WaitForResponse(CMD_ACK
,NULL
); 
1069         setGraphBuf(got
, sizeof(got
)); 
1073 char * GetBitRateStr(uint32_t id
){ 
1074         static char buf
[25]; 
1079                         snprintf(retStr
,sizeof(buf
),"%d - RF/8",id
); 
1082                         snprintf(retStr
,sizeof(buf
),"%d - RF/16",id
); 
1085                         snprintf(retStr
,sizeof(buf
),"%d - RF/32",id
); 
1088                         snprintf(retStr
,sizeof(buf
),"%d - RF/40",id
); 
1091                         snprintf(retStr
,sizeof(buf
),"%d - RF/50",id
); 
1094                         snprintf(retStr
,sizeof(buf
),"%d - RF/64",id
); 
1097                         snprintf(retStr
,sizeof(buf
),"%d - RF/100",id
); 
1100                         snprintf(retStr
,sizeof(buf
),"%d - RF/128",id
); 
1103                         snprintf(retStr
,sizeof(buf
),"%d - (Unknown)",id
); 
1110 char * GetSaferStr(uint32_t id
){ 
1111         static char buf
[40]; 
1114         snprintf(retStr
,sizeof(buf
),"%d",id
); 
1116                 snprintf(retStr
,sizeof(buf
),"%d - passwd",id
); 
1119                 snprintf(retStr
,sizeof(buf
),"%d - testmode",id
); 
1125 char * GetModulationStr( uint32_t id
){ 
1126         static char buf
[60]; 
1131                         snprintf(retStr
,sizeof(buf
),"%d - DIRECT (ASK/NRZ)",id
); 
1134                         snprintf(retStr
,sizeof(buf
),"%d - PSK 1 phase change when input changes",id
); 
1137                         snprintf(retStr
,sizeof(buf
),"%d - PSK 2 phase change on bitclk if input high",id
); 
1140                         snprintf(retStr
,sizeof(buf
),"%d - PSK 3 phase change on rising edge of input",id
); 
1143                         snprintf(retStr
,sizeof(buf
),"%d - FSK 1 RF/8  RF/5",id
); 
1146                         snprintf(retStr
,sizeof(buf
),"%d - FSK 2 RF/8  RF/10",id
); 
1149                         snprintf(retStr
,sizeof(buf
),"%d - FSK 1a RF/5  RF/8",id
); 
1152                         snprintf(retStr
,sizeof(buf
),"%d - FSK 2a RF/10  RF/8",id
); 
1155                         snprintf(retStr
,sizeof(buf
),"%d - Manchester",id
); 
1158                         snprintf(retStr
,sizeof(buf
),"%d - Biphase",id
); 
1161                         snprintf(retStr
,sizeof(buf
),"%d - Biphase a - AKA Conditional Dephase Encoding(CDP)",id
); 
1164                         snprintf(retStr
,sizeof(buf
),"%d - Reserved",id
); 
1167                         snprintf(retStr
,sizeof(buf
),"0x%02X (Unknown)",id
); 
1173 char * GetModelStrFromCID(uint32_t cid
){ 
1175         static char buf
[10]; 
1178         if (cid 
== 1) snprintf(retStr
, sizeof(buf
),"ATA5577M1"); 
1179         if (cid 
== 2) snprintf(retStr
, sizeof(buf
),"ATA5577M2");         
1183 char * GetSelectedModulationStr( uint8_t id
){ 
1185         static char buf
[20]; 
1190                         snprintf(retStr
,sizeof(buf
),"FSK"); 
1193                         snprintf(retStr
,sizeof(buf
),"FSK1"); 
1196                         snprintf(retStr
,sizeof(buf
),"FSK1a"); 
1199                         snprintf(retStr
,sizeof(buf
),"FSK2"); 
1202                         snprintf(retStr
,sizeof(buf
),"FSK2a"); 
1205                         snprintf(retStr
,sizeof(buf
),"ASK"); 
1208                         snprintf(retStr
,sizeof(buf
),"DIRECT/NRZ"); 
1211                         snprintf(retStr
,sizeof(buf
),"PSK1"); 
1214                         snprintf(retStr
,sizeof(buf
),"PSK2"); 
1217                         snprintf(retStr
,sizeof(buf
),"PSK3"); 
1220                         snprintf(retStr
,sizeof(buf
),"BIPHASE"); 
1223                         snprintf(retStr
,sizeof(buf
),"BIPHASEa - (CDP)"); 
1226                         snprintf(retStr
,sizeof(buf
),"(Unknown)"); 
1232 uint32_t PackBits(uint8_t start
, uint8_t len
, uint8_t* bits
){ 
1237         if (len 
> 32) return 0; 
1240         for (; j 
>= 0; --j
, ++i
) 
1241                 tmp     
|= bits
[i
] << j
; 
1246 int CmdResetRead(const char *Cmd
) { 
1247         UsbCommand c 
= {CMD_T55XX_RESET_READ
, {0,0,0}}; 
1249         clearCommandBuffer(); 
1251         if ( !WaitForResponseTimeout(CMD_ACK
,NULL
,2500) ) { 
1252                 PrintAndLog("command execution time out"); 
1256         uint8_t got
[BIGBUF_SIZE
-1]; 
1257         GetFromBigBuf(got
,sizeof(got
),0); 
1258         WaitForResponse(CMD_ACK
,NULL
); 
1259         setGraphBuf(got
, sizeof(got
)); 
1263 int CmdT55xxWipe(const char *Cmd
) { 
1264         char writeData
[20] = {0}; 
1265         char *ptrData 
= writeData
; 
1267         PrintAndLog("\nBeginning Wipe of a T55xx tag (assuming the tag is not password protected)\n"); 
1269         //try with the default password to reset block 0  (with a pwd should work even if pwd bit not set) 
1270         snprintf(ptrData
,sizeof(writeData
),"b 0 d 00088040 p 0"); 
1272         if (!CmdT55xxWriteBlock(ptrData
)) 
1273                 PrintAndLog("Error writing blk 0"); 
1275         for (uint8_t blk 
= 1; blk
<8; blk
++) { 
1276                 snprintf(ptrData
,sizeof(writeData
),"b %d d 0", blk
); 
1277                 if (!CmdT55xxWriteBlock(ptrData
)) 
1278                         PrintAndLog("Error writing blk %d", blk
); 
1280                 memset(writeData
, sizeof(writeData
), 0x00); 
1285 static command_t CommandTable
[] = { 
1286   {"help",     CmdHelp
,           1, "This help"}, 
1287   {"config",   CmdT55xxSetConfig
, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"}, 
1288   {"detect",   CmdT55xxDetect
,    1, "[1] Try detecting the tag modulation from reading the configuration block."}, 
1289   {"read",     CmdT55xxReadBlock
, 0, "b <block> p [password] [o] [1] -- Read T55xx block data. Optional [p password], [override], [page1]"}, 
1290   {"resetread",CmdResetRead
,      0, "Send Reset Cmd then lf read the stream to attempt to identify the start of it (needs a demod and/or plot after)"}, 
1291   {"write",    CmdT55xxWriteBlock
,0, "b <block> d <data> p [password] [1] -- Write T55xx block data. Optional [p password], [page1]"}, 
1292   {"trace",    CmdT55xxReadTrace
, 1, "[1] Show T55x7 traceability data (page 1/ blk 0-1)"}, 
1293   {"info",     CmdT55xxInfo
,      1, "[1] Show T55x7 configuration data (page 0/ blk 0)"}, 
1294   {"dump",     CmdT55xxDump
,      0, "[password] [o] Dump T55xx card block 0-7. Optional [password], [override]"}, 
1295   {"special",  special
,           0, "Show block changes with 64 different offsets"}, 
1296   {"wakeup",   CmdT55xxWakeUp
,    0, "Send AOR wakeup command"}, 
1297   {"wipe",     CmdT55xxWipe
,      0, "Wipe a T55xx tag and set defaults (will destroy any data on tag)"}, 
1298   {NULL
, NULL
, 0, NULL
} 
1301 int CmdLFT55XX(const char *Cmd
) { 
1302   CmdsParse(CommandTable
, Cmd
); 
1306 int CmdHelp(const char *Cmd
) { 
1307   CmdsHelp(CommandTable
);