1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
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
7 //-----------------------------------------------------------------------------
8 // Data and Graph commands
9 //-----------------------------------------------------------------------------
11 #include <stdio.h> // also included in util.h
12 #include <string.h> // also included in util.h
13 #include <limits.h> // for CmdNorm INT_MIN && INT_MAX
14 #include "data.h" // also included in util.h
18 #include "proxmark3.h"
19 #include "ui.h" // for show graph controls
20 #include "graph.h" // for graph data
21 #include "cmdparser.h"// already included in cmdmain.h
22 #include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h
23 #include "lfdemod.h" // for demod code
24 #include "crc.h" // for pyramid checksum maxim
25 #include "crc16.h" // for FDXB demod checksum
26 #include "loclass/cipherutils.h" // for decimating samples in getsamples
28 uint8_t DemodBuffer
[MAX_DEMOD_BUF_LEN
];
29 uint8_t g_debugMode
=0;
30 size_t DemodBufferLen
=0;
31 static int CmdHelp(const char *Cmd
);
33 //set the demod buffer with given array of binary (one bit per byte)
35 void setDemodBuf(uint8_t *buff
, size_t size
, size_t startIdx
)
40 if ( size
>= MAX_DEMOD_BUF_LEN
)
41 size
= MAX_DEMOD_BUF_LEN
;
44 for (; i
< size
; i
++){
45 DemodBuffer
[i
]=buff
[startIdx
++];
51 int CmdSetDebugMode(const char *Cmd
)
54 sscanf(Cmd
, "%i", &demod
);
55 g_debugMode
=(uint8_t)demod
;
59 int usage_data_printdemodbuf(){
60 PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
61 PrintAndLog("Options:");
62 PrintAndLog(" h This help");
63 PrintAndLog(" x output in hex (omit for binary output)");
64 PrintAndLog(" o <offset> enter offset in # of bits");
65 PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
70 void printDemodBuff(void)
72 int bitLen
= DemodBufferLen
;
74 PrintAndLog("no bits found in demod buffer");
77 if (bitLen
>512) bitLen
=512; //max output to 512 bits if we have more - should be plenty
79 char *bin
= sprint_bin_break(DemodBuffer
,bitLen
,16);
80 PrintAndLog("%s",bin
);
85 int CmdPrintDemodBuff(const char *Cmd
)
90 uint32_t offset
= 0; //could be size_t but no param_get16...
91 uint32_t length
= 512;
93 while(param_getchar(Cmd
, cmdp
) != 0x00)
95 switch(param_getchar(Cmd
, cmdp
))
99 return usage_data_printdemodbuf();
107 offset
= param_get32ex(Cmd
, cmdp
+1, 0, 10);
108 if (!offset
) errors
= true;
113 length
= param_get32ex(Cmd
, cmdp
+1, 512, 10);
114 if (!length
) errors
= true;
118 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd
, cmdp
));
125 if(errors
) return usage_data_printdemodbuf();
126 length
= (length
> (DemodBufferLen
-offset
)) ? DemodBufferLen
-offset
: length
;
127 int numBits
= (length
) & 0x00FFC; //make sure we don't exceed our string
130 char *buf
= (char *) (DemodBuffer
+ offset
);
131 numBits
= (numBits
> sizeof(hex
)) ? sizeof(hex
) : numBits
;
132 numBits
= binarraytohex(hex
, buf
, numBits
);
133 if (numBits
==0) return 0;
134 PrintAndLog("DemodBuffer: %s",hex
);
136 PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer
+offset
,numBits
,16));
142 //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
143 int CmdGetBitStream(const char *Cmd
)
147 for (i
= 0; i
< GraphTraceLen
; i
++) {
148 if (GraphBuffer
[i
] >= 1) {
154 RepaintGraphWindow();
159 //print 64 bit EM410x ID in multiple formats
160 void printEM410x(uint32_t hi
, uint64_t id
)
167 for (ii
=5; ii
>0;ii
--){
169 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
173 //output 88 bit em id
174 PrintAndLog("\nEM TAG ID : %06X%016llX", hi
, id
);
176 //output 40 bit em id
177 PrintAndLog("\nEM TAG ID : %010llX", id
);
178 PrintAndLog("Unique TAG ID : %010llX", id2lo
);
179 PrintAndLog("\nPossible de-scramble patterns");
180 PrintAndLog("HoneyWell IdentKey {");
181 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
182 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFFFF);
183 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
184 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
185 PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id
& 0xFF000000) >> 24,(id
& 0xFFFF));
186 PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id
& 0xFF0000) >> 16,(id
& 0xFFFF));
187 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
188 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
189 PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
190 (id2lo
& 0xf000000000) >> 36,
191 (id2lo
& 0x0f00000000) >> 32,
192 (id2lo
& 0x00f0000000) >> 28,
193 (id2lo
& 0x000f000000) >> 24,
194 (id2lo
& 0x0000f00000) >> 20,
195 (id2lo
& 0x00000f0000) >> 16,
196 (id2lo
& 0x000000f000) >> 12,
197 (id2lo
& 0x0000000f00) >> 8,
198 (id2lo
& 0x00000000f0) >> 4,
199 (id2lo
& 0x000000000f)
201 uint64_t paxton
= (((id
>>32) << 24) | (id
& 0xffffff)) + 0x143e00;
202 PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
203 PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton
, paxton
);
205 uint32_t p1id
= (id
& 0xFFFFFF);
206 uint8_t arr
[32] = {0x00};
209 for (; i
< 24; ++i
, --j
){
210 arr
[i
] = (p1id
>> i
) & 1;
244 PrintAndLog("Pattern 1 : %d [0x%X]", p1
, p1
);
246 uint16_t sebury1
= id
& 0xFFFF;
247 uint8_t sebury2
= (id
>> 16) & 0x7F;
248 uint32_t sebury3
= id
& 0x7FFFFF;
249 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1
, sebury2
, sebury3
, sebury1
, sebury2
, sebury3
);
255 int AskEm410xDecode(bool verbose
, uint32_t *hi
, uint64_t *lo
)
258 size_t BitLen
= DemodBufferLen
;
259 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
260 memcpy(BitStream
, DemodBuffer
, BitLen
);
261 if (Em410xDecode(BitStream
, &BitLen
, &idx
, hi
, lo
)){
262 //set GraphBuffer for clone or sim command
263 setDemodBuf(BitStream
, BitLen
, idx
);
265 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
269 PrintAndLog("EM410x pattern found: ");
270 printEM410x(*hi
, *lo
);
277 int AskEm410xDemod(const char *Cmd
, uint32_t *hi
, uint64_t *lo
, bool verbose
)
280 if (!ASKDemod_ext(Cmd
, FALSE
, FALSE
, 1, &st
)) return 0;
281 return AskEm410xDecode(verbose
, hi
, lo
);
285 //takes 3 arguments - clock, invert and maxErr as integers
286 //attempts to demodulate ask while decoding manchester
287 //prints binary found and saves in graphbuffer for further commands
288 int CmdAskEM410xDemod(const char *Cmd
)
290 char cmdp
= param_getchar(Cmd
, 0);
291 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
292 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
293 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
294 PrintAndLog(" <invert>, 1 for invert output");
295 PrintAndLog(" [set maximum allowed errors], default = 100.");
297 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
298 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
299 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
300 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
301 PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
306 return AskEm410xDemod(Cmd
, &hi
, &lo
, true);
310 //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
311 // (amp may not be needed anymore)
312 //verbose will print results and demoding messages
313 //emSearch will auto search for EM410x format in bitstream
314 //askType switches decode: ask/raw = 0, ask/manchester = 1
315 int ASKDemod_ext(const char *Cmd
, bool verbose
, bool emSearch
, uint8_t askType
, bool *stCheck
) {
321 char amp
= param_getchar(Cmd
, 0);
322 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
323 sscanf(Cmd
, "%i %i %i %i %c", &clk
, &invert
, &maxErr
, &maxLen
, &
);
324 if (!maxLen
) maxLen
= BIGBUF_SIZE
;
325 if (invert
!= 0 && invert
!= 1) {
326 PrintAndLog("Invalid argument: %s", Cmd
);
333 if (amp
== 'a' || amp
== 'A') askAmp
=1;
334 size_t BitLen
= getFromGraphBuf(BitStream
);
335 if (g_debugMode
) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
336 if (BitLen
<255) return 0;
337 if (maxLen
<BitLen
&& maxLen
!= 0) BitLen
= maxLen
;
340 if (*stCheck
) st
= DetectST(BitStream
, &BitLen
, &foundclk
);
343 clk
= (clk
== 0) ? foundclk
: clk
;
344 if (verbose
|| g_debugMode
) PrintAndLog("\nFound Sequence Terminator");
346 int errCnt
= askdemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
, askAmp
, askType
);
347 if (errCnt
<0 || BitLen
<16){ //if fatal error (or -1)
348 if (g_debugMode
) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
352 if (g_debugMode
) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt
, BitLen
, clk
);
355 if (verbose
|| g_debugMode
) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk
,invert
,BitLen
);
358 setDemodBuf(BitStream
,BitLen
,0);
359 if (verbose
|| g_debugMode
){
360 if (errCnt
>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt
);
361 if (askType
) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk
);
362 else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk
);
363 // Now output the bitstream to the scrollback by line of 16 bits
370 AskEm410xDecode(true, &hi
, &lo
);
374 int ASKDemod(const char *Cmd
, bool verbose
, bool emSearch
, uint8_t askType
) {
376 return ASKDemod_ext(Cmd
, verbose
, emSearch
, askType
, &st
);
380 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
381 //attempts to demodulate ask while decoding manchester
382 //prints binary found and saves in graphbuffer for further commands
383 int Cmdaskmandemod(const char *Cmd
)
385 char cmdp
= param_getchar(Cmd
, 0);
386 if (strlen(Cmd
) > 25 || cmdp
== 'h' || cmdp
== 'H') {
387 PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
388 PrintAndLog(" ['s'] optional, check for Sequence Terminator");
389 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
390 PrintAndLog(" <invert>, 1 to invert output");
391 PrintAndLog(" [set maximum allowed errors], default = 100");
392 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
393 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
395 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
396 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
397 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
398 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
399 PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
404 return ASKDemod_ext(Cmd
++, TRUE
, TRUE
, 1, &st
);
405 else if (Cmd
[1] == 's')
406 return ASKDemod_ext(Cmd
+=2, TRUE
, TRUE
, 1, &st
);
408 return ASKDemod(Cmd
, TRUE
, TRUE
, 1);
413 //stricktly take 10 and 01 and convert to 0 and 1
414 int Cmdmandecoderaw(const char *Cmd
)
421 char cmdp
= param_getchar(Cmd
, 0);
422 if (strlen(Cmd
) > 5 || cmdp
== 'h' || cmdp
== 'H') {
423 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
424 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
425 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
426 PrintAndLog(" [invert] invert output");
427 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
429 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
432 if (DemodBufferLen
==0) return 0;
433 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
435 for (;i
<DemodBufferLen
;++i
){
436 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
437 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
438 BitStream
[i
]=DemodBuffer
[i
];
440 if (high
>7 || low
<0 ){
441 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
445 sscanf(Cmd
, "%i %i", &invert
, &maxErr
);
447 errCnt
=manrawdecode(BitStream
, &size
, invert
);
449 PrintAndLog("Too many errors: %d",errCnt
);
452 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
453 PrintAndLog("%s", sprint_bin_break(BitStream
, size
, 16));
458 if (Em410xDecode(BitStream
, &size
, &idx
, &hi
, &id
)){
459 //need to adjust to set bitstream back to manchester encoded data
460 //setDemodBuf(BitStream, size, idx);
470 //take 01 or 10 = 0 and 11 or 00 = 1
471 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
472 // and "invert" default = 0 if 1 it will invert output
473 // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
474 int CmdBiphaseDecodeRaw(const char *Cmd
)
477 int offset
=0, invert
=0, maxErr
=20, errCnt
=0;
478 char cmdp
= param_getchar(Cmd
, 0);
479 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
480 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
481 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
482 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
483 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
485 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
486 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
487 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
489 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
490 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
493 sscanf(Cmd
, "%i %i %i", &offset
, &invert
, &maxErr
);
494 if (DemodBufferLen
==0){
495 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
498 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
499 memcpy(BitStream
, DemodBuffer
, DemodBufferLen
);
500 size
= DemodBufferLen
;
501 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
503 PrintAndLog("Error during decode:%d", errCnt
);
507 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
512 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt
);
514 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset
,invert
);
515 PrintAndLog("%s", sprint_bin_break(BitStream
, size
, 16));
517 if (offset
) setDemodBuf(DemodBuffer
,DemodBufferLen
-offset
, offset
); //remove first bit from raw demod
522 // - ASK Demod then Biphase decode GraphBuffer samples
523 int ASKbiphaseDemod(const char *Cmd
, bool verbose
)
525 //ask raw demod GraphBuffer first
526 int offset
=0, clk
=0, invert
=0, maxErr
=0;
527 sscanf(Cmd
, "%i %i %i %i", &offset
, &clk
, &invert
, &maxErr
);
529 uint8_t BitStream
[MAX_DEMOD_BUF_LEN
];
530 size_t size
= getFromGraphBuf(BitStream
);
531 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
532 int errCnt
= askdemod(BitStream
, &size
, &clk
, &invert
, maxErr
, 0, 0);
533 if ( errCnt
< 0 || errCnt
> maxErr
) {
534 if (g_debugMode
) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt
, clk
);
538 //attempt to Biphase decode BitStream
539 errCnt
= BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
541 if (g_debugMode
|| verbose
) PrintAndLog("Error BiphaseRawDecode: %d", errCnt
);
544 if (errCnt
> maxErr
) {
545 if (g_debugMode
|| verbose
) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt
);
548 //success set DemodBuffer and return
549 setDemodBuf(BitStream
, size
, 0);
550 if (g_debugMode
|| verbose
){
551 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset
,clk
,errCnt
);
556 //by marshmellow - see ASKbiphaseDemod
557 int Cmdaskbiphdemod(const char *Cmd
)
559 char cmdp
= param_getchar(Cmd
, 0);
560 if (strlen(Cmd
) > 25 || cmdp
== 'h' || cmdp
== 'H') {
561 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
562 PrintAndLog(" [offset], offset to begin biphase, default=0");
563 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
564 PrintAndLog(" <invert>, 1 to invert output");
565 PrintAndLog(" [set maximum allowed errors], default = 100");
566 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
567 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
568 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
569 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
570 PrintAndLog(" NOTE: any other arg must have previous args set to work");
572 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
574 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
575 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
576 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
577 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
578 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
579 PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
580 PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
583 return ASKbiphaseDemod(Cmd
, TRUE
);
587 //attempts to demodulate and identify a G_Prox_II verex/chubb card
588 //WARNING: if it fails during some points it will destroy the DemodBuffer data
589 // but will leave the GraphBuffer intact.
590 //if successful it will push askraw data back to demod buffer ready for emulation
591 int CmdG_Prox_II_Demod(const char *Cmd
)
593 if (!ASKbiphaseDemod(Cmd
, FALSE
)){
594 if (g_debugMode
) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try");
597 size_t size
= DemodBufferLen
;
598 //call lfdemod.c demod for gProxII
599 int ans
= gProxII_Demod(DemodBuffer
, &size
);
601 if (g_debugMode
) PrintAndLog("Error gProxII_Demod");
604 //got a good demod of 96 bits
605 uint8_t ByteStream
[8] = {0x00};
607 size_t startIdx
= ans
+ 6; //start after 6 bit preamble
609 uint8_t bits_no_spacer
[90];
610 //so as to not mess with raw DemodBuffer copy to a new sample array
611 memcpy(bits_no_spacer
, DemodBuffer
+ startIdx
, 90);
612 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
613 size_t bitLen
= removeParity(bits_no_spacer
, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
615 if (g_debugMode
) PrintAndLog("Error gProxII: spacer removal did not produce 72 bits: %u, start: %u", bitLen
, startIdx
);
618 // get key and then get all 8 bytes of payload decoded
619 xorKey
= (uint8_t)bytebits_to_byteLSBF(bits_no_spacer
, 8);
620 for (size_t idx
= 0; idx
< 8; idx
++) {
621 ByteStream
[idx
] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer
+8 + (idx
*8),8)) ^ xorKey
;
622 if (g_debugMode
) PrintAndLog("byte %u after xor: %02x", (unsigned int)idx
, ByteStream
[idx
]);
624 //now ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
626 uint8_t fmtLen
= ByteStream
[0]>>2;
629 //get raw 96 bits to print
630 uint32_t raw1
= bytebits_to_byte(DemodBuffer
+ans
,32);
631 uint32_t raw2
= bytebits_to_byte(DemodBuffer
+ans
+32, 32);
632 uint32_t raw3
= bytebits_to_byte(DemodBuffer
+ans
+64, 32);
635 FC
= ((ByteStream
[3] & 0x7F)<<7) | (ByteStream
[4]>>1);
636 Card
= ((ByteStream
[4]&1)<<19) | (ByteStream
[5]<<11) | (ByteStream
[6]<<3) | (ByteStream
[7]>>5);
637 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen
, FC
, Card
);
638 } else if(fmtLen
==26){
639 FC
= ((ByteStream
[3] & 0x7F)<<1) | (ByteStream
[4]>>7);
640 Card
= ((ByteStream
[4]&0x7F)<<9) | (ByteStream
[5]<<1) | (ByteStream
[6]>>7);
641 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen
, FC
, Card
);
643 PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen
);
644 PrintAndLog("Decoded Raw: %s", sprint_hex(ByteStream
, 8));
646 PrintAndLog("Raw: %08x%08x%08x", raw1
,raw2
,raw3
);
647 setDemodBuf(DemodBuffer
+ans
, 96, 0);
652 //see ASKDemod for what args are accepted
653 int CmdVikingDemod(const char *Cmd
)
655 if (!ASKDemod(Cmd
, false, false, 1)) {
656 if (g_debugMode
) PrintAndLog("ASKDemod failed");
659 size_t size
= DemodBufferLen
;
660 //call lfdemod.c demod for Viking
661 int ans
= VikingDemod_AM(DemodBuffer
, &size
);
663 if (g_debugMode
) PrintAndLog("Error Viking_Demod %d %s", ans
, (ans
== -5)?"[chksum error]":"");
667 uint32_t raw1
= bytebits_to_byte(DemodBuffer
+ans
, 32);
668 uint32_t raw2
= bytebits_to_byte(DemodBuffer
+ans
+32, 32);
669 uint32_t cardid
= bytebits_to_byte(DemodBuffer
+ans
+24, 32);
670 uint8_t checksum
= bytebits_to_byte(DemodBuffer
+ans
+32+24, 8);
671 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid
, checksum
);
672 PrintAndLog("Raw: %08X%08X", raw1
,raw2
);
673 setDemodBuf(DemodBuffer
+ans
, 64, 0);
677 //by marshmellow - see ASKDemod
678 int Cmdaskrawdemod(const char *Cmd
)
680 char cmdp
= param_getchar(Cmd
, 0);
681 if (strlen(Cmd
) > 25 || cmdp
== 'h' || cmdp
== 'H') {
682 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
683 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
684 PrintAndLog(" <invert>, 1 to invert output");
685 PrintAndLog(" [set maximum allowed errors], default = 100");
686 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
687 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
689 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
690 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
691 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
692 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
693 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
694 PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
695 PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
698 return ASKDemod(Cmd
, TRUE
, FALSE
, 0);
701 int AutoCorrelate(int window
, bool SaveGrph
, bool verbose
)
703 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
704 size_t Correlation
= 0;
707 if (verbose
) PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
708 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
710 for (int j
= 0; j
< window
; ++j
) {
711 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
713 CorrelBuffer
[i
] = sum
;
714 if (sum
>= maxSum
-100 && sum
<= maxSum
+100){
716 Correlation
= i
-lastMax
;
718 if (sum
> maxSum
) maxSum
= sum
;
719 } else if (sum
> maxSum
){
725 //try again with wider margin
726 for (int i
= 0; i
< GraphTraceLen
- window
; i
++){
727 if (CorrelBuffer
[i
] >= maxSum
-(maxSum
*0.05) && CorrelBuffer
[i
] <= maxSum
+(maxSum
*0.05)){
729 Correlation
= i
-lastMax
;
731 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
735 if (verbose
&& Correlation
> 0) PrintAndLog("Possible Correlation: %d samples",Correlation
);
738 GraphTraceLen
= GraphTraceLen
- window
;
739 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
740 RepaintGraphWindow();
745 int usage_data_autocorr(void)
748 PrintAndLog("Usage: data autocorr [window] [g]");
749 PrintAndLog("Options: ");
750 PrintAndLog(" h This help");
751 PrintAndLog(" [window] window length for correlation - default = 4000");
752 PrintAndLog(" g save back to GraphBuffer (overwrite)");
756 int CmdAutoCorr(const char *Cmd
)
758 char cmdp
= param_getchar(Cmd
, 0);
759 if (cmdp
== 'h' || cmdp
== 'H') return usage_data_autocorr();
760 int window
= 4000; //set default
762 bool updateGrph
= FALSE
;
763 sscanf(Cmd
, "%i %c", &window
, &grph
);
765 if (window
>= GraphTraceLen
) {
766 PrintAndLog("window must be smaller than trace (%d samples)",
770 if (grph
== 'g') updateGrph
=TRUE
;
771 return AutoCorrelate(window
, updateGrph
, TRUE
);
774 int CmdBitsamples(const char *Cmd
)
779 GetFromBigBuf(got
,sizeof(got
),0);
780 WaitForResponse(CMD_ACK
,NULL
);
782 for (int j
= 0; j
< sizeof(got
); j
++) {
783 for (int k
= 0; k
< 8; k
++) {
784 if(got
[j
] & (1 << (7 - k
))) {
785 GraphBuffer
[cnt
++] = 1;
787 GraphBuffer
[cnt
++] = 0;
792 RepaintGraphWindow();
796 int CmdBuffClear(const char *Cmd
)
798 UsbCommand c
= {CMD_BUFF_CLEAR
};
804 int CmdDec(const char *Cmd
)
806 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
807 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
809 PrintAndLog("decimated by 2");
810 RepaintGraphWindow();
814 * Undecimate - I'd call it 'interpolate', but we'll save that
815 * name until someone does an actual interpolation command, not just
816 * blindly repeating samples
820 int CmdUndec(const char *Cmd
)
822 if(param_getchar(Cmd
, 0) == 'h')
824 PrintAndLog("Usage: data undec [factor]");
825 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
826 PrintAndLog("Options: ");
827 PrintAndLog(" h This help");
828 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
829 PrintAndLog("Example: 'data undec 3'");
833 uint8_t factor
= param_get8ex(Cmd
, 0, 2, 10);
834 //We have memory, don't we?
835 int swap
[MAX_GRAPH_TRACE_LEN
] = { 0 };
836 uint32_t g_index
= 0 ,s_index
= 0;
837 while(g_index
< GraphTraceLen
&& s_index
+ factor
< MAX_GRAPH_TRACE_LEN
)
840 for (count
= 0; count
< factor
&& s_index
+ count
< MAX_GRAPH_TRACE_LEN
; count
++)
841 swap
[s_index
+count
] = GraphBuffer
[g_index
];
846 memcpy(GraphBuffer
, swap
, s_index
* sizeof(int));
847 GraphTraceLen
= s_index
;
848 RepaintGraphWindow();
853 //shift graph zero up or down based on input + or -
854 int CmdGraphShiftZero(const char *Cmd
)
858 //set options from parameters entered with the command
859 sscanf(Cmd
, "%i", &shift
);
861 for(int i
= 0; i
<GraphTraceLen
; i
++){
862 shiftedVal
=GraphBuffer
[i
]+shift
;
865 else if (shiftedVal
<-127)
867 GraphBuffer
[i
]= shiftedVal
;
874 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
875 //similar to dirtheshold, threshold commands
876 //takes a threshold length which is the measured length between two samples then determines an edge
877 int CmdAskEdgeDetect(const char *Cmd
)
880 sscanf(Cmd
, "%i", &thresLen
);
882 for(int i
= 1; i
<GraphTraceLen
; i
++){
883 if (GraphBuffer
[i
]-GraphBuffer
[i
-1]>=thresLen
) //large jump up
884 GraphBuffer
[i
-1] = 127;
885 else if(GraphBuffer
[i
]-GraphBuffer
[i
-1]<=-1*thresLen
) //large jump down
886 GraphBuffer
[i
-1] = -127;
888 RepaintGraphWindow();
892 /* Print our clock rate */
893 // uses data from graphbuffer
894 // adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
895 int CmdDetectClockRate(const char *Cmd
)
897 char cmdp
= param_getchar(Cmd
, 0);
898 if (strlen(Cmd
) > 6 || strlen(Cmd
) == 0 || cmdp
== 'h' || cmdp
== 'H') {
899 PrintAndLog("Usage: data detectclock [modulation] <clock>");
900 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
901 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
902 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
904 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
905 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
906 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
907 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
911 ans
= GetAskClock(Cmd
+1, true, false);
912 } else if (cmdp
== 'f'){
913 ans
= GetFskClock("", true, false);
914 } else if (cmdp
== 'n'){
915 ans
= GetNrzClock("", true, false);
916 } else if (cmdp
== 'p'){
917 ans
= GetPskClock("", true, false);
919 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
924 char *GetFSKType(uint8_t fchigh
, uint8_t fclow
, uint8_t invert
)
926 static char fType
[8];
927 memset(fType
, 0x00, 8);
928 char *fskType
= fType
;
929 if (fchigh
==10 && fclow
==8){
931 memcpy(fskType
, "FSK2a", 5);
933 memcpy(fskType
, "FSK2", 4);
934 } else if (fchigh
== 8 && fclow
== 5) {
936 memcpy(fskType
, "FSK1", 4);
938 memcpy(fskType
, "FSK1a", 5);
940 memcpy(fskType
, "FSK??", 5);
946 //fsk raw demod and print binary
947 //takes 4 arguments - Clock, invert, fchigh, fclow
948 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
949 int FSKrawDemod(const char *Cmd
, bool verbose
)
951 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
952 uint8_t rfLen
, invert
, fchigh
, fclow
;
955 //set options from parameters entered with the command
956 rfLen
= param_get8(Cmd
, 0);
957 invert
= param_get8(Cmd
, 1);
958 fchigh
= param_get8(Cmd
, 2);
959 fclow
= param_get8(Cmd
, 3);
960 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
962 invert
= 1; //if invert option only is used
967 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
968 size_t BitLen
= getFromGraphBuf(BitStream
);
969 if (BitLen
==0) return 0;
970 //get field clock lengths
972 if (!fchigh
|| !fclow
) {
973 fcs
= countFC(BitStream
, BitLen
, 1);
978 fchigh
= (fcs
>> 8) & 0x00FF;
979 fclow
= fcs
& 0x00FF;
982 //get bit clock length
984 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
985 if (!rfLen
) rfLen
= 50;
987 int size
= fskdemod(BitStream
, BitLen
, rfLen
, invert
, fchigh
, fclow
);
989 setDemodBuf(BitStream
, size
, 0);
991 // Now output the bitstream to the scrollback by line of 16 bits
992 if (verbose
|| g_debugMode
) {
993 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen
, (unsigned int)invert
, (unsigned int)fchigh
, (unsigned int)fclow
);
994 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh
, fclow
, invert
));
1000 if (g_debugMode
) PrintAndLog("no FSK data found");
1006 //fsk raw demod and print binary
1007 //takes 4 arguments - Clock, invert, fchigh, fclow
1008 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1009 int CmdFSKrawdemod(const char *Cmd
)
1011 char cmdp
= param_getchar(Cmd
, 0);
1012 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1013 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
1014 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
1015 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
1016 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
1017 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
1019 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
1020 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
1021 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
1022 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
1023 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
1024 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
1025 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
1028 return FSKrawDemod(Cmd
, TRUE
);
1031 //by marshmellow (based on existing demod + holiman's refactor)
1032 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1033 //print full HID Prox ID and some bit format details if found
1034 int CmdFSKdemodHID(const char *Cmd
)
1036 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1037 uint32_t hi2
=0, hi
=0, lo
=0;
1039 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1040 size_t BitLen
= getFromGraphBuf(BitStream
);
1041 if (BitLen
==0) return 0;
1042 //get binary from fsk wave
1043 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
1047 PrintAndLog("DEBUG: Just Noise Detected");
1048 } else if (idx
== -2) {
1049 PrintAndLog("DEBUG: Error demoding fsk");
1050 } else if (idx
== -3) {
1051 PrintAndLog("DEBUG: Preamble not found");
1052 } else if (idx
== -4) {
1053 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
1055 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1060 if (hi2
==0 && hi
==0 && lo
==0) {
1061 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
1064 if (hi2
!= 0){ //extra large HID tags
1065 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
1066 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
1068 else { //standard HID tags <38 bits
1071 uint32_t cardnum
= 0;
1072 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1074 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
1076 while(lo2
>1){ //find last bit set to 1 (format len bit)
1084 cardnum
= (lo
>>1)&0xFFFF;
1088 cardnum
= (lo
>>1)&0xFFFF;
1089 fc
= ((hi
&1)<<15)|(lo
>>17);
1092 cardnum
= (lo
>>1)&0xFFFFF;
1093 fc
= ((hi
&1)<<11)|(lo
>>21);
1096 else { //if bit 38 is not set then 37 bit format is used
1101 cardnum
= (lo
>>1)&0x7FFFF;
1102 fc
= ((hi
&0xF)<<12)|(lo
>>20);
1105 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
1106 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
1107 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
1109 setDemodBuf(BitStream
,BitLen
,idx
);
1111 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
1118 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1119 //print full Paradox Prox ID and some bit format details if found
1120 int CmdFSKdemodParadox(const char *Cmd
)
1122 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1123 uint32_t hi2
=0, hi
=0, lo
=0;
1125 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1126 size_t BitLen
= getFromGraphBuf(BitStream
);
1127 if (BitLen
==0) return 0;
1128 //get binary from fsk wave
1129 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
1133 PrintAndLog("DEBUG: Just Noise Detected");
1134 } else if (idx
== -2) {
1135 PrintAndLog("DEBUG: Error demoding fsk");
1136 } else if (idx
== -3) {
1137 PrintAndLog("DEBUG: Preamble not found");
1138 } else if (idx
== -4) {
1139 PrintAndLog("DEBUG: Error in Manchester data");
1141 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1146 if (hi2
==0 && hi
==0 && lo
==0){
1147 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
1150 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
1151 uint32_t cardnum
= (lo
>>10)&0xFFFF;
1152 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1153 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1154 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1156 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1157 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF, rawHi2
, rawHi
, rawLo
);
1158 setDemodBuf(BitStream
,BitLen
,idx
);
1160 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
1167 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1168 //print ioprox ID and some format details
1169 int CmdFSKdemodIO(const char *Cmd
)
1172 //something in graphbuffer?
1173 if (GraphTraceLen
< 65) {
1174 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
1177 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1178 size_t BitLen
= getFromGraphBuf(BitStream
);
1179 if (BitLen
==0) return 0;
1181 //get binary from fsk wave
1182 idx
= IOdemodFSK(BitStream
,BitLen
);
1186 PrintAndLog("DEBUG: Just Noise Detected");
1187 } else if (idx
== -2) {
1188 PrintAndLog("DEBUG: not enough samples");
1189 } else if (idx
== -3) {
1190 PrintAndLog("DEBUG: error during fskdemod");
1191 } else if (idx
== -4) {
1192 PrintAndLog("DEBUG: Preamble not found");
1193 } else if (idx
== -5) {
1194 PrintAndLog("DEBUG: Separator bits not found");
1196 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1203 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
1204 if (BitLen
> 92) PrintAndLog("%s", sprint_bin_break(BitStream
,92,16));
1209 //0 10 20 30 40 50 60
1211 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1212 //-----------------------------------------------------------------------------
1213 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1215 //XSF(version)facility:codeone+codetwo (raw)
1217 if (idx
+64>BitLen
) {
1218 if (g_debugMode
) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
1221 PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream
[idx
], BitStream
[idx
+1], BitStream
[idx
+2], BitStream
[idx
+3], BitStream
[idx
+4], BitStream
[idx
+5], BitStream
[idx
+6], BitStream
[idx
+7], BitStream
[idx
+8]);
1222 PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream
[idx
+9], BitStream
[idx
+10], BitStream
[idx
+11],BitStream
[idx
+12],BitStream
[idx
+13],BitStream
[idx
+14],BitStream
[idx
+15],BitStream
[idx
+16],BitStream
[idx
+17]);
1223 PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream
[idx
+18], BitStream
[idx
+19], BitStream
[idx
+20],BitStream
[idx
+21],BitStream
[idx
+22],BitStream
[idx
+23],BitStream
[idx
+24],BitStream
[idx
+25],BitStream
[idx
+26]);
1224 PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream
[idx
+27], BitStream
[idx
+28], BitStream
[idx
+29],BitStream
[idx
+30],BitStream
[idx
+31],BitStream
[idx
+32],BitStream
[idx
+33],BitStream
[idx
+34],BitStream
[idx
+35]);
1225 PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream
[idx
+36], BitStream
[idx
+37], BitStream
[idx
+38],BitStream
[idx
+39],BitStream
[idx
+40],BitStream
[idx
+41],BitStream
[idx
+42],BitStream
[idx
+43],BitStream
[idx
+44]);
1226 PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream
[idx
+45], BitStream
[idx
+46], BitStream
[idx
+47],BitStream
[idx
+48],BitStream
[idx
+49],BitStream
[idx
+50],BitStream
[idx
+51],BitStream
[idx
+52],BitStream
[idx
+53]);
1227 PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream
[idx
+54],BitStream
[idx
+55],BitStream
[idx
+56],BitStream
[idx
+57],BitStream
[idx
+58],BitStream
[idx
+59],BitStream
[idx
+60],BitStream
[idx
+61],BitStream
[idx
+62],BitStream
[idx
+63]);
1229 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
1230 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
1231 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
1232 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
1233 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
1234 uint8_t crc
= bytebits_to_byte(BitStream
+idx
+54,8);
1235 uint16_t calccrc
= 0;
1237 for (uint8_t i
=1; i
<6; ++i
){
1238 calccrc
+= bytebits_to_byte(BitStream
+idx
+9*i
,8);
1241 calccrc
= 0xff - calccrc
;
1243 char *crcStr
= (crc
== calccrc
) ? "crc ok": "!crc";
1245 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version
,facilitycode
,number
,code
,code2
, crc
, crcStr
);
1246 setDemodBuf(BitStream
,64,idx
);
1248 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
1255 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1256 //print full AWID Prox ID and some bit format details if found
1257 int CmdFSKdemodAWID(const char *Cmd
)
1259 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1260 size_t size
= getFromGraphBuf(BitStream
);
1261 if (size
==0) return 0;
1263 //get binary from fsk wave
1264 int idx
= AWIDdemodFSK(BitStream
, &size
);
1268 PrintAndLog("DEBUG: Error - not enough samples");
1270 PrintAndLog("DEBUG: Error - only noise found");
1272 PrintAndLog("DEBUG: Error - problem during FSK demod");
1274 PrintAndLog("DEBUG: Error - AWID preamble not found");
1276 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1278 PrintAndLog("DEBUG: Error %d",idx
);
1284 // 0 10 20 30 40 50 60
1286 // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96
1287 // -----------------------------------------------------------------------------
1288 // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
1289 // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96
1290 // |---26 bit---| |-----117----||-------------142-------------|
1291 // b = format bit len, o = odd parity of last 3 bits
1292 // f = facility code, c = card number
1293 // w = wiegand parity
1294 // (26 bit format shown)
1296 //get raw ID before removing parities
1297 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1298 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1299 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1300 setDemodBuf(BitStream
,96,idx
);
1302 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
1304 if (g_debugMode
) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
1307 // ok valid card found!
1310 // 0 10 20 30 40 50 60
1312 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1313 // -----------------------------------------------------------------------------
1314 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1315 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1316 // |26 bit| |-117--| |-----142------|
1318 // 00110010 0 0000011111010000000000000001000100101000100001111 0 00000000
1319 // bbbbbbbb w ffffffffffffffffccccccccccccccccccccccccccccccccc w xxxxxxxx
1320 // |50 bit| |----4000------||-----------2248975-------------|
1321 // b = format bit len, o = odd parity of last 3 bits
1322 // f = facility code, c = card number
1323 // w = wiegand parity
1326 uint32_t cardnum
= 0;
1329 uint8_t fmtLen
= bytebits_to_byte(BitStream
, 8);
1332 fc
= bytebits_to_byte(BitStream
+ 9, 8);
1333 cardnum
= bytebits_to_byte(BitStream
+ 17, 16);
1334 code1
= bytebits_to_byte(BitStream
+ 8,fmtLen
);
1335 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1338 fc
= bytebits_to_byte(BitStream
+ 9, 16);
1339 cardnum
= bytebits_to_byte(BitStream
+ 25, 32);
1340 code1
= bytebits_to_byte(BitStream
+ 8, (fmtLen
-32) );
1341 code2
= bytebits_to_byte(BitStream
+ 8 + (fmtLen
-32), 32);
1342 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
1346 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
1347 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
1348 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
1349 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
1351 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
1352 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1353 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1359 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
1366 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1367 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1368 int CmdFSKdemodPyramid(const char *Cmd
)
1370 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1371 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1372 size_t size
= getFromGraphBuf(BitStream
);
1373 if (size
==0) return 0;
1375 //get binary from fsk wave
1376 int idx
= PyramiddemodFSK(BitStream
, &size
);
1380 PrintAndLog("DEBUG: Error - not enough samples");
1382 PrintAndLog("DEBUG: Error - only noise found");
1384 PrintAndLog("DEBUG: Error - problem during FSK demod");
1386 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1388 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1390 PrintAndLog("DEBUG: Error - idx: %d",idx
);
1395 // 0 10 20 30 40 50 60
1397 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1398 // -----------------------------------------------------------------------------
1399 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1400 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1402 // 64 70 80 90 100 110 120
1404 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1405 // -----------------------------------------------------------------------------
1406 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1407 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1408 // |---115---||---------71---------|
1409 // s = format start bit, o = odd parity of last 7 bits
1410 // f = facility code, c = card number
1411 // w = wiegand parity, x = extra space for other formats
1412 // p = CRC8maxim checksum
1413 // (26 bit format shown)
1415 //get bytes for checksum calc
1416 uint8_t checksum
= bytebits_to_byte(BitStream
+ idx
+ 120, 8);
1417 uint8_t csBuff
[14] = {0x00};
1418 for (uint8_t i
= 0; i
< 13; i
++){
1419 csBuff
[i
] = bytebits_to_byte(BitStream
+ idx
+ 16 + (i
*8), 8);
1421 //check checksum calc
1422 //checksum calc thanks to ICEMAN!!
1423 uint32_t checkCS
= CRC8Maxim(csBuff
,13);
1425 //get raw ID before removing parities
1426 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1427 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1428 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1429 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1430 setDemodBuf(BitStream
,128,idx
);
1432 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1435 PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size
, idx
, rawHi3
);
1439 // ok valid card found!
1442 // 0 10 20 30 40 50 60 70
1444 // 01234567890123456789012345678901234567890123456789012345678901234567890
1445 // -----------------------------------------------------------------------
1446 // 00000000000000000000000000000000000000000000000000000000000000000000000
1447 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1451 // 1 2 34567890 1234567890123456 7 8901234
1452 // ---------------------------------------
1453 // 1 1 01110011 0000000001000110 0 1001010
1454 // s w ffffffff cccccccccccccccc w ppppppp
1455 // |--115-| |------71------|
1456 // s = format start bit, o = odd parity of last 7 bits
1457 // f = facility code, c = card number
1458 // w = wiegand parity, x = extra space for other formats
1459 // p = CRC8-Maxim checksum
1460 // (26 bit format shown)
1462 //find start bit to get fmtLen
1464 for (j
=0; j
< size
; ++j
){
1465 if(BitStream
[j
]) break;
1468 uint8_t fmtLen
= size
-j
-8;
1470 uint32_t cardnum
= 0;
1473 if ( fmtLen
== 26 ){
1474 fc
= bytebits_to_byte(BitStream
+73, 8);
1475 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1476 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1477 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1478 } else if (fmtLen
== 45) {
1479 fmtLen
= 42; //end = 10 bits not 7 like 26 bit fmt
1480 fc
= bytebits_to_byte(BitStream
+53, 10);
1481 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1482 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1484 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1485 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1487 if (checksum
== checkCS
)
1488 PrintAndLog("Checksum %02x passed", checksum
);
1490 PrintAndLog("Checksum %02x failed - should have been %02x", checksum
, checkCS
);
1493 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1499 // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
1500 // 8 databits + 1 parity (1)
1502 // NATIONAL CODE, ICAR database
1503 // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
1504 // FLAG (animal/non-animal)
1511 16 ccitt CRC chksum over 64bit ID CODE.
1514 -- sample: 985121004515220 [ 37FF65B88EF94 ]
1516 int CmdFDXBdemodBI(const char *Cmd
){
1522 uint8_t BitStream
[MAX_DEMOD_BUF_LEN
];
1523 size_t size
= getFromGraphBuf(BitStream
);
1525 errCnt
= askdemod(BitStream
, &size
, &clk
, &invert
, maxErr
, 0, 0);
1526 if ( errCnt
< 0 || errCnt
> maxErr
) {
1527 if (g_debugMode
) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt
, clk
);
1531 errCnt
= BiphaseRawDecode(BitStream
, &size
, maxErr
, 1);
1532 if (errCnt
< 0 || errCnt
> maxErr
) {
1533 if (g_debugMode
) PrintAndLog("Error BiphaseRawDecode: %d", errCnt
);
1537 int preambleIndex
= FDXBdemodBI(BitStream
, &size
);
1538 if (preambleIndex
< 0){
1539 if (g_debugMode
) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex
);
1543 if (g_debugMode
) PrintAndLog("Error incorrect data length found");
1547 setDemodBuf(BitStream
, 128, preambleIndex
);
1549 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
1550 size
= removeParity(BitStream
, preambleIndex
+ 11, 9, 2, 117);
1551 if ( size
!= 104 ) {
1552 if (g_debugMode
) PrintAndLog("Error removeParity:: %d", size
);
1556 char *bin
= sprint_bin_break(BitStream
,size
,16);
1557 PrintAndLog("DEBUG BinStream:\n%s",bin
);
1559 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
1560 if (g_debugMode
) PrintAndLog("Start marker %d; Size %d", preambleIndex
, size
);
1563 uint64_t NationalCode
= ((uint64_t)(bytebits_to_byteLSBF(BitStream
+32,6)) << 32) | bytebits_to_byteLSBF(BitStream
,32);
1564 uint32_t countryCode
= bytebits_to_byteLSBF(BitStream
+38,10);
1565 uint8_t dataBlockBit
= BitStream
[48];
1566 uint32_t reservedCode
= bytebits_to_byteLSBF(BitStream
+49,14);
1567 uint8_t animalBit
= BitStream
[63];
1568 uint32_t crc16
= bytebits_to_byteLSBF(BitStream
+64,16);
1569 uint32_t extended
= bytebits_to_byteLSBF(BitStream
+80,24);
1571 uint64_t rawid
= ((uint64_t)bytebits_to_byte(BitStream
,32)<<32) | bytebits_to_byte(BitStream
+32,32);
1573 num_to_bytes(rawid
, 8, raw
);
1575 if (g_debugMode
) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw
,8));
1577 uint16_t calcCrc
= crc16_ccitt_kermit(raw
, 8);
1578 PrintAndLog("Animal ID: %04u-%012llu", countryCode
, NationalCode
);
1579 PrintAndLog("National Code: %012llu", NationalCode
);
1580 PrintAndLog("CountryCode: %04u", countryCode
);
1581 PrintAndLog("Extended Data: %s", dataBlockBit
? "True" : "False");
1582 PrintAndLog("reserved Code: %u", reservedCode
);
1583 PrintAndLog("Animal Tag: %s", animalBit
? "True" : "False");
1584 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16
, calcCrc
, (calcCrc
== crc16
) ? "Passed" : "Failed");
1585 PrintAndLog("Extended: 0x%X\n", extended
);
1592 //attempt to psk1 demod graph buffer
1593 int PSKDemod(const char *Cmd
, bool verbose
)
1598 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1603 if (invert
!= 0 && invert
!= 1) {
1604 if (g_debugMode
|| verbose
) PrintAndLog("Invalid argument: %s", Cmd
);
1607 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1608 size_t BitLen
= getFromGraphBuf(BitStream
);
1609 if (BitLen
==0) return 0;
1610 uint8_t carrier
=countFC(BitStream
, BitLen
, 0);
1611 if (carrier
!=2 && carrier
!=4 && carrier
!=8){
1616 PrintAndLog("Carrier: rf/%d",carrier
);
1619 errCnt
= pskRawDemod(BitStream
, &BitLen
, &clk
, &invert
);
1620 if (errCnt
> maxErr
){
1621 if (g_debugMode
|| verbose
) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1624 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1625 if (g_debugMode
|| verbose
) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1628 if (verbose
|| g_debugMode
){
1629 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk
,invert
,BitLen
);
1631 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt
);
1634 //prime demod buffer for output
1635 setDemodBuf(BitStream
,BitLen
,0);
1639 // Indala 26 bit decode
1641 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1642 int CmdIndalaDecode(const char *Cmd
)
1646 ans
= PSKDemod(Cmd
, 0);
1647 } else{ //default to RF/32
1648 ans
= PSKDemod("32", 0);
1653 PrintAndLog("Error1: %d",ans
);
1657 size_t size
= DemodBufferLen
;
1658 int startIdx
= indala26decode(DemodBuffer
, &size
, &invert
);
1659 if (startIdx
< 0 || size
> 224) {
1661 PrintAndLog("Error2: %d",ans
);
1664 setDemodBuf(DemodBuffer
, size
, (size_t)startIdx
);
1667 PrintAndLog("Had to invert bits");
1669 PrintAndLog("BitLen: %d",DemodBufferLen
);
1670 //convert UID to HEX
1671 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1672 uid1
=bytebits_to_byte(DemodBuffer
,32);
1673 uid2
=bytebits_to_byte(DemodBuffer
+32,32);
1674 if (DemodBufferLen
==64){
1675 PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer
,DemodBufferLen
,16), uid1
, uid2
);
1677 uid3
=bytebits_to_byte(DemodBuffer
+64,32);
1678 uid4
=bytebits_to_byte(DemodBuffer
+96,32);
1679 uid5
=bytebits_to_byte(DemodBuffer
+128,32);
1680 uid6
=bytebits_to_byte(DemodBuffer
+160,32);
1681 uid7
=bytebits_to_byte(DemodBuffer
+192,32);
1682 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)",
1683 sprint_bin_break(DemodBuffer
,DemodBufferLen
,16), uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1686 PrintAndLog("DEBUG: printing demodbuffer:");
1692 int CmdPSKNexWatch(const char *Cmd
)
1694 if (!PSKDemod("", false)) return 0;
1695 uint8_t preamble
[28] = {0,0,0,0,0,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
1696 size_t startIdx
= 0, size
= DemodBufferLen
;
1697 bool invert
= false;
1698 if (!preambleSearch(DemodBuffer
, preamble
, sizeof(preamble
), &size
, &startIdx
)){
1699 // if didn't find preamble try again inverting
1700 if (!PSKDemod("1", false)) return 0;
1701 size
= DemodBufferLen
;
1702 if (!preambleSearch(DemodBuffer
, preamble
, sizeof(preamble
), &size
, &startIdx
)) return 0;
1705 if (size
!= 128) return 0;
1706 setDemodBuf(DemodBuffer
, size
, startIdx
+4);
1707 startIdx
= 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1710 for (uint8_t wordIdx
=0; wordIdx
<4; wordIdx
++){
1711 for (uint8_t idx
=0; idx
<8; idx
++){
1712 ID
= (ID
<< 1) | DemodBuffer
[startIdx
+wordIdx
+(idx
*4)];
1715 //parity check (TBD)
1717 //checksum check (TBD)
1720 PrintAndLog("NexWatch ID: %d", ID
);
1722 PrintAndLog("Had to Invert - probably NexKey");
1723 for (uint8_t idx
=0; idx
<size
; idx
++)
1724 DemodBuffer
[idx
] ^= 1;
1727 CmdPrintDemodBuff("x");
1732 // takes 3 arguments - clock, invert, maxErr as integers
1733 // attempts to demodulate nrz only
1734 // prints binary found and saves in demodbuffer for further commands
1735 int NRZrawDemod(const char *Cmd
, bool verbose
)
1740 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1745 if (invert
!= 0 && invert
!= 1) {
1746 PrintAndLog("Invalid argument: %s", Cmd
);
1749 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1750 size_t BitLen
= getFromGraphBuf(BitStream
);
1751 if (BitLen
==0) return 0;
1753 errCnt
= nrzRawDemod(BitStream
, &BitLen
, &clk
, &invert
);
1754 if (errCnt
> maxErr
){
1755 if (g_debugMode
) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1758 if (errCnt
<0 || BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1759 if (g_debugMode
) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1762 if (verbose
|| g_debugMode
) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1763 //prime demod buffer for output
1764 setDemodBuf(BitStream
,BitLen
,0);
1766 if (errCnt
>0 && (verbose
|| g_debugMode
)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt
);
1767 if (verbose
|| g_debugMode
) {
1768 PrintAndLog("NRZ demoded bitstream:");
1769 // Now output the bitstream to the scrollback by line of 16 bits
1775 int CmdNRZrawDemod(const char *Cmd
)
1777 char cmdp
= param_getchar(Cmd
, 0);
1778 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1779 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
1780 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1781 PrintAndLog(" <invert>, 1 for invert output");
1782 PrintAndLog(" [set maximum allowed errors], default = 100.");
1784 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
1785 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1786 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1787 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1788 PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
1791 return NRZrawDemod(Cmd
, TRUE
);
1795 // takes 3 arguments - clock, invert, maxErr as integers
1796 // attempts to demodulate psk only
1797 // prints binary found and saves in demodbuffer for further commands
1798 int CmdPSK1rawDemod(const char *Cmd
)
1801 char cmdp
= param_getchar(Cmd
, 0);
1802 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1803 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
1804 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1805 PrintAndLog(" <invert>, 1 for invert output");
1806 PrintAndLog(" [set maximum allowed errors], default = 100.");
1808 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
1809 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
1810 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
1811 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
1812 PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
1815 ans
= PSKDemod(Cmd
, TRUE
);
1818 if (g_debugMode
) PrintAndLog("Error demoding: %d",ans
);
1822 PrintAndLog("PSK1 demoded bitstream:");
1823 // Now output the bitstream to the scrollback by line of 16 bits
1829 // takes same args as cmdpsk1rawdemod
1830 int CmdPSK2rawDemod(const char *Cmd
)
1833 char cmdp
= param_getchar(Cmd
, 0);
1834 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1835 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
1836 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1837 PrintAndLog(" <invert>, 1 for invert output");
1838 PrintAndLog(" [set maximum allowed errors], default = 100.");
1840 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
1841 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
1842 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
1843 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
1844 PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
1847 ans
=PSKDemod(Cmd
, TRUE
);
1849 if (g_debugMode
) PrintAndLog("Error demoding: %d",ans
);
1852 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
1853 PrintAndLog("PSK2 demoded bitstream:");
1854 // Now output the bitstream to the scrollback by line of 16 bits
1859 // by marshmellow - combines all raw demod functions into one menu command
1860 int CmdRawDemod(const char *Cmd
)
1862 char cmdp
= Cmd
[0]; //param_getchar(Cmd, 0);
1864 if (strlen(Cmd
) > 20 || cmdp
== 'h' || cmdp
== 'H' || strlen(Cmd
)<2) {
1865 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
1866 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
1867 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
1868 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
1869 PrintAndLog(" <options> see specific modulation help for optional parameters");
1871 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
1872 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
1873 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
1874 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
1875 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
1876 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
1877 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
1878 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
1881 char cmdp2
= Cmd
[1];
1883 if (cmdp
== 'f' && cmdp2
== 's'){
1884 ans
= CmdFSKrawdemod(Cmd
+2);
1885 } else if(cmdp
== 'a' && cmdp2
== 'b'){
1886 ans
= Cmdaskbiphdemod(Cmd
+2);
1887 } else if(cmdp
== 'a' && cmdp2
== 'm'){
1888 ans
= Cmdaskmandemod(Cmd
+2);
1889 } else if(cmdp
== 'a' && cmdp2
== 'r'){
1890 ans
= Cmdaskrawdemod(Cmd
+2);
1891 } else if(cmdp
== 'n' && cmdp2
== 'r'){
1892 ans
= CmdNRZrawDemod(Cmd
+2);
1893 } else if(cmdp
== 'p' && cmdp2
== '1'){
1894 ans
= CmdPSK1rawDemod(Cmd
+2);
1895 } else if(cmdp
== 'p' && cmdp2
== '2'){
1896 ans
= CmdPSK2rawDemod(Cmd
+2);
1898 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
1903 int CmdGrid(const char *Cmd
)
1905 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1906 PlotGridXdefault
= PlotGridX
;
1907 PlotGridYdefault
= PlotGridY
;
1908 RepaintGraphWindow();
1912 int CmdHexsamples(const char *Cmd
)
1917 char string_buf
[25];
1918 char* string_ptr
= string_buf
;
1919 uint8_t got
[BIGBUF_SIZE
];
1921 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1923 /* if no args send something */
1924 if (requested
== 0) {
1927 if (offset
+ requested
> sizeof(got
)) {
1928 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
1932 GetFromBigBuf(got
,requested
,offset
);
1933 WaitForResponse(CMD_ACK
,NULL
);
1936 for (j
= 0; j
< requested
; j
++) {
1938 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1940 *(string_ptr
- 1) = '\0'; // remove the trailing space
1941 PrintAndLog("%s", string_buf
);
1942 string_buf
[0] = '\0';
1943 string_ptr
= string_buf
;
1946 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1947 *(string_ptr
- 1) = '\0';
1948 PrintAndLog("%s", string_buf
);
1949 string_buf
[0] = '\0';
1955 int CmdHide(const char *Cmd
)
1961 //zero mean GraphBuffer
1962 int CmdHpf(const char *Cmd
)
1967 for (i
= 10; i
< GraphTraceLen
; ++i
)
1968 accum
+= GraphBuffer
[i
];
1969 accum
/= (GraphTraceLen
- 10);
1970 for (i
= 0; i
< GraphTraceLen
; ++i
)
1971 GraphBuffer
[i
] -= accum
;
1973 RepaintGraphWindow();
1977 bool _headBit( BitstreamOut
*stream
)
1979 int bytepos
= stream
->position
>> 3; // divide by 8
1980 int bitpos
= (stream
->position
++) & 7; // mask out 00000111
1981 return (*(stream
->buffer
+ bytepos
) >> (7-bitpos
)) & 1;
1984 uint8_t getByte(uint8_t bits_per_sample
, BitstreamOut
* b
)
1988 for(i
=0 ; i
< bits_per_sample
; i
++)
1990 val
|= (_headBit(b
) << (7-i
));
1995 int getSamples(const char *Cmd
, bool silent
)
1997 //If we get all but the last byte in bigbuf,
1998 // we don't have to worry about remaining trash
1999 // in the last byte in case the bits-per-sample
2000 // does not line up on byte boundaries
2002 uint8_t got
[BIGBUF_SIZE
-1] = { 0 };
2004 int n
= strtol(Cmd
, NULL
, 0);
2006 if ( n
== 0 || n
> sizeof(got
))
2009 PrintAndLog("Reading %d bytes from device memory\n", n
);
2010 GetFromBigBuf(got
,n
,0);
2011 PrintAndLog("Data fetched");
2012 UsbCommand response
;
2013 if ( !WaitForResponseTimeout(CMD_ACK
, &response
, 10000) ) {
2014 PrintAndLog("timeout while waiting for reply.");
2018 uint8_t bits_per_sample
= 8;
2020 //Old devices without this feature would send 0 at arg[0]
2021 if(response
.arg
[0] > 0)
2023 sample_config
*sc
= (sample_config
*) response
.d
.asBytes
;
2024 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc
->bits_per_sample
, sc
->decimation
);
2025 bits_per_sample
= sc
->bits_per_sample
;
2027 if(bits_per_sample
< 8)
2029 PrintAndLog("Unpacking...");
2030 BitstreamOut bout
= { got
, bits_per_sample
* n
, 0};
2032 for (j
= 0; j
* bits_per_sample
< n
* 8 && j
< n
; j
++) {
2033 uint8_t sample
= getByte(bits_per_sample
, &bout
);
2034 GraphBuffer
[j
] = ((int) sample
)- 128;
2037 PrintAndLog("Unpacked %d samples" , j
);
2040 for (int j
= 0; j
< n
; j
++) {
2041 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
2046 RepaintGraphWindow();
2050 int CmdSamples(const char *Cmd
)
2052 return getSamples(Cmd
, false);
2055 int CmdTuneSamples(const char *Cmd
)
2058 printf("\nMeasuring antenna characteristics, please wait...");
2060 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
, {0,0,0}};
2061 clearCommandBuffer();
2064 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
, &resp
, 2000)) {
2068 PrintAndLog("\nNo response from Proxmark. Aborting...");
2074 int vLf125
, vLf134
, vHf
;
2075 vLf125
= resp
.arg
[0] & 0xffff;
2076 vLf134
= resp
.arg
[0] >> 16;
2077 vHf
= resp
.arg
[1] & 0xffff;;
2078 peakf
= resp
.arg
[2] & 0xffff;
2079 peakv
= resp
.arg
[2] >> 16;
2081 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
2082 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
2083 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
2084 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
2086 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2087 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2088 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2089 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2091 if (peakv
< LF_UNUSABLE_V
)
2092 PrintAndLog("# Your LF antenna is unusable.");
2093 else if (peakv
< LF_MARGINAL_V
)
2094 PrintAndLog("# Your LF antenna is marginal.");
2095 if (vHf
< HF_UNUSABLE_V
)
2096 PrintAndLog("# Your HF antenna is unusable.");
2097 else if (vHf
< HF_MARGINAL_V
)
2098 PrintAndLog("# Your HF antenna is marginal.");
2100 if (peakv
>= LF_UNUSABLE_V
) {
2101 for (int i
= 0; i
< 256; i
++) {
2102 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
2104 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2106 GraphTraceLen
= 256;
2108 RepaintGraphWindow();
2114 int CmdLoad(const char *Cmd
)
2116 char filename
[FILE_PATH_SIZE
] = {0x00};
2120 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2121 memcpy(filename
, Cmd
, len
);
2123 FILE *f
= fopen(filename
, "r");
2125 PrintAndLog("couldn't open '%s'", filename
);
2131 while (fgets(line
, sizeof (line
), f
)) {
2132 GraphBuffer
[GraphTraceLen
] = atoi(line
);
2136 PrintAndLog("loaded %d samples", GraphTraceLen
);
2137 RepaintGraphWindow();
2141 int CmdLtrim(const char *Cmd
)
2145 if (GraphTraceLen
<= 0) return 0;
2147 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
2148 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
2150 GraphTraceLen
-= ds
;
2151 RepaintGraphWindow();
2155 // trim graph to input argument length
2156 int CmdRtrim(const char *Cmd
)
2160 RepaintGraphWindow();
2164 int CmdNorm(const char *Cmd
)
2167 int max
= INT_MIN
, min
= INT_MAX
;
2169 for (i
= 10; i
< GraphTraceLen
; ++i
) {
2170 if (GraphBuffer
[i
] > max
)
2171 max
= GraphBuffer
[i
];
2172 if (GraphBuffer
[i
] < min
)
2173 min
= GraphBuffer
[i
];
2177 for (i
= 0; i
< GraphTraceLen
; ++i
) {
2178 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
2180 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2183 RepaintGraphWindow();
2187 int CmdPlot(const char *Cmd
)
2193 int CmdSave(const char *Cmd
)
2195 char filename
[FILE_PATH_SIZE
] = {0x00};
2199 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2200 memcpy(filename
, Cmd
, len
);
2203 FILE *f
= fopen(filename
, "w");
2205 PrintAndLog("couldn't open '%s'", filename
);
2209 for (i
= 0; i
< GraphTraceLen
; i
++) {
2210 fprintf(f
, "%d\n", GraphBuffer
[i
]);
2213 PrintAndLog("saved to '%s'", Cmd
);
2217 int CmdScale(const char *Cmd
)
2219 CursorScaleFactor
= atoi(Cmd
);
2220 if (CursorScaleFactor
== 0) {
2221 PrintAndLog("bad, can't have zero scale");
2222 CursorScaleFactor
= 1;
2224 RepaintGraphWindow();
2228 int CmdDirectionalThreshold(const char *Cmd
)
2230 int8_t upThres
= param_get8(Cmd
, 0);
2231 int8_t downThres
= param_get8(Cmd
, 1);
2233 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
2235 int lastValue
= GraphBuffer
[0];
2236 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2238 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
2239 // Apply first threshold to samples heading up
2240 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
2242 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2245 // Apply second threshold to samples heading down
2246 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
2248 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2249 GraphBuffer
[i
] = -1;
2253 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2254 GraphBuffer
[i
] = GraphBuffer
[i
-1];
2258 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
2259 RepaintGraphWindow();
2263 int CmdZerocrossings(const char *Cmd
)
2265 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2272 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2273 if (GraphBuffer
[i
] * sign
>= 0) {
2274 // No change in sign, reproduce the previous sample count.
2276 GraphBuffer
[i
] = lastZc
;
2278 // Change in sign, reset the sample count.
2280 GraphBuffer
[i
] = lastZc
;
2288 RepaintGraphWindow();
2292 int usage_data_bin2hex(){
2293 PrintAndLog("Usage: data bin2hex <binary_digits>");
2294 PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
2299 * @brief Utility for conversion via cmdline.
2303 int Cmdbin2hex(const char *Cmd
)
2306 if(param_getptr(Cmd
, &bg
, &en
, 0))
2308 return usage_data_bin2hex();
2310 //Number of digits supplied as argument
2311 size_t length
= en
- bg
+1;
2312 size_t bytelen
= (length
+7) / 8;
2313 uint8_t* arr
= (uint8_t *) malloc(bytelen
);
2314 memset(arr
, 0, bytelen
);
2315 BitstreamOut bout
= { arr
, 0, 0 };
2317 for(; bg
<= en
;bg
++)
2320 if( c
== '1') pushBit(&bout
, 1);
2321 else if( c
== '0') pushBit(&bout
, 0);
2322 else PrintAndLog("Ignoring '%c'", c
);
2325 if(bout
.numbits
% 8 != 0)
2327 printf("[padded with %d zeroes]\n", 8-(bout
.numbits
% 8));
2330 //Uses printf instead of PrintAndLog since the latter
2331 // adds linebreaks to each printout - this way was more convenient since we don't have to
2332 // allocate a string and write to that first...
2333 for(size_t x
= 0; x
< bytelen
; x
++)
2335 printf("%02X", arr
[x
]);
2342 int usage_data_hex2bin(){
2343 PrintAndLog("Usage: data hex2bin <hex_digits>");
2344 PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
2348 int Cmdhex2bin(const char *Cmd
)
2351 if(param_getptr(Cmd
, &bg
, &en
, 0)) return usage_data_hex2bin();
2357 if (x
>= 'a' && x
<= 'f')
2359 // convert to numeric value
2360 if (x
>= '0' && x
<= '9')
2362 else if (x
>= 'A' && x
<= 'F')
2367 //Uses printf instead of PrintAndLog since the latter
2368 // adds linebreaks to each printout - this way was more convenient since we don't have to
2369 // allocate a string and write to that first...
2371 for(int i
= 0 ; i
< 4 ; ++i
)
2372 printf("%d",(x
>> (3 - i
)) & 1);
2379 int CmdDataIIR(const char *Cmd
){
2380 iceIIR_Butterworth(GraphBuffer
, GraphTraceLen
);
2381 RepaintGraphWindow();
2385 static command_t CommandTable
[] =
2387 {"help", CmdHelp
, 1, "This help"},
2388 {"askedgedetect", CmdAskEdgeDetect
, 1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def:25)"},
2389 {"askem410xdemod", CmdAskEM410xDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2390 {"askgproxiidemod", CmdG_Prox_II_Demod
, 1, "Demodulate a G Prox II tag from GraphBuffer"},
2391 {"askvikingdemod", CmdVikingDemod
, 1, "Demodulate a Viking AM tag from GraphBuffer"},
2392 {"autocorr", CmdAutoCorr
, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
2393 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
2394 {"bin2hex", Cmdbin2hex
, 1, "bin2hex <digits> -- Converts binary to hexadecimal"},
2395 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2396 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2397 {"dec", CmdDec
, 1, "Decimate samples"},
2398 {"detectclock", CmdDetectClockRate
, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
2399 {"fdxbdemod", CmdFDXBdemodBI
, 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
2400 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2401 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2402 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2403 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2404 {"fskpyramiddemod", CmdFSKdemodPyramid
, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2405 {"fskparadoxdemod", CmdFSKdemodParadox
, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2406 {"getbitstream", CmdGetBitStream
, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2407 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2408 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2409 {"hex2bin", Cmdhex2bin
, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},
2410 {"hide", CmdHide
, 1, "Hide graph window"},
2411 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2412 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2413 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2414 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2415 {"manrawdecode", Cmdmandecoderaw
, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
2416 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2417 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2418 {"printdemodbuffer",CmdPrintDemodBuff
, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
2419 {"pskindalademod", CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
2420 {"psknexwatchdemod",CmdPSKNexWatch
, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
2421 {"rawdemod", CmdRawDemod
, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2422 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2423 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2424 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2425 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
2426 {"shiftgraphzero", CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2427 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2428 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2429 {"undec", CmdUndec
, 1, "Un-decimate samples by 2"},
2430 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2431 {"iir", CmdDataIIR
, 0, "apply IIR buttersworth filter on plotdata"},
2432 {NULL
, NULL
, 0, NULL
}
2435 int CmdData(const char *Cmd
){
2436 clearCommandBuffer();
2437 CmdsParse(CommandTable
, Cmd
);
2441 int CmdHelp(const char *Cmd
)
2443 CmdsHelp(CommandTable
);