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 //-----------------------------------------------------------------------------
15 #include "proxmark3.h"
19 #include "cmdparser.h"
24 uint8_t DemodBuffer
[MAX_DEMOD_BUF_LEN
];
27 static int CmdHelp(const char *Cmd
);
29 //set the demod buffer with given array of binary (one bit per byte)
31 void setDemodBuf(uint8_t *buff
, size_t size
, size_t startIdx
)
34 for (; i
< size
; i
++){
35 DemodBuffer
[i
]=buff
[startIdx
++];
41 int CmdSetDebugMode(const char *Cmd
)
44 sscanf(Cmd
, "%i", &demod
);
45 g_debugMode
=(uint8_t)demod
;
53 int bitLen
= DemodBufferLen
;
55 PrintAndLog("no bits found in demod buffer");
58 if (bitLen
>512) bitLen
=512; //max output to 512 bits if we have more - should be plenty
60 // ensure equally divided by 16
63 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
64 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
86 int CmdAmp(const char *Cmd
)
88 int i
, rising
, falling
;
89 int max
= INT_MIN
, min
= INT_MAX
;
91 for (i
= 10; i
< GraphTraceLen
; ++i
) {
92 if (GraphBuffer
[i
] > max
)
94 if (GraphBuffer
[i
] < min
)
100 for (i
= 0; i
< GraphTraceLen
; ++i
) {
101 if (GraphBuffer
[i
+ 1] < GraphBuffer
[i
]) {
103 GraphBuffer
[i
] = max
;
108 if (GraphBuffer
[i
+ 1] > GraphBuffer
[i
]) {
110 GraphBuffer
[i
] = min
;
117 RepaintGraphWindow();
122 * Generic command to demodulate ASK.
124 * Argument is convention: positive or negative (High mod means zero
125 * or high mod means one)
127 * Updates the Graph trace with 0/1 values
132 //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
133 int Cmdaskdemod(const char *Cmd
)
136 int c
, high
= 0, low
= 0;
138 // TODO: complain if we do not give 2 arguments here !
139 // (AL - this doesn't make sense! we're only using one argument!!!)
140 sscanf(Cmd
, "%i", &c
);
142 /* Detect high and lows and clock */
144 for (i
= 0; i
< GraphTraceLen
; ++i
)
146 if (GraphBuffer
[i
] > high
)
147 high
= GraphBuffer
[i
];
148 else if (GraphBuffer
[i
] < low
)
149 low
= GraphBuffer
[i
];
153 if (c
!= 0 && c
!= 1) {
154 PrintAndLog("Invalid argument: %s", Cmd
);
158 if (GraphBuffer
[0] > 0) {
159 GraphBuffer
[0] = 1-c
;
163 for (i
= 1; i
< GraphTraceLen
; ++i
) {
164 /* Transitions are detected at each peak
165 * Transitions are either:
166 * - we're low: transition if we hit a high
167 * - we're high: transition if we hit a low
168 * (we need to do it this way because some tags keep high or
169 * low for long periods, others just reach the peak and go
172 //[marhsmellow] change == to >= for high and <= for low for fuzz
173 if ((GraphBuffer
[i
] == high
) && (GraphBuffer
[i
- 1] == c
)) {
174 GraphBuffer
[i
] = 1 - c
;
175 } else if ((GraphBuffer
[i
] == low
) && (GraphBuffer
[i
- 1] == (1 - c
))){
179 GraphBuffer
[i
] = GraphBuffer
[i
- 1];
182 RepaintGraphWindow();
187 void printBitStream(uint8_t BitStream
[], uint32_t bitLen
)
191 PrintAndLog("Too few bits found: %d",bitLen
);
194 if (bitLen
>512) bitLen
=512;
196 // ensure equally divided by 16
200 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
201 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
222 //print EM410x ID in multiple formats
223 void printEM410x(uint64_t id
)
230 for (ii
=5; ii
>0;ii
--){
232 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
236 PrintAndLog("EM TAG ID : %010llx", id
);
237 PrintAndLog("Unique TAG ID: %010llx", id2lo
);
238 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
239 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFF);
240 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
241 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
242 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
243 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
244 PrintAndLog("Other : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
250 //take binary from demod buffer and see if we can find an EM410x ID
251 int CmdEm410xDecode(const char *Cmd
)
254 size_t size
= DemodBufferLen
, idx
=0;
255 id
= Em410xDecode(DemodBuffer
, &size
, &idx
);
257 setDemodBuf(DemodBuffer
, size
, idx
);
259 PrintAndLog("DEBUG: Printing demod buffer:");
270 //takes 3 arguments - clock, invert and maxErr as integers
271 //attempts to demodulate ask while decoding manchester
272 //prints binary found and saves in graphbuffer for further commands
273 int CmdAskEM410xDemod(const char *Cmd
)
278 char cmdp
= param_getchar(Cmd
, 0);
279 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
280 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
281 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
282 PrintAndLog(" <invert>, 1 for invert output");
283 PrintAndLog(" [set maximum allowed errors], default = 100.");
285 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
286 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
287 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
288 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
289 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");
295 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
296 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
297 if (invert
!= 0 && invert
!= 1) {
298 PrintAndLog("Invalid argument: %s", Cmd
);
301 size_t BitLen
= getFromGraphBuf(BitStream
);
303 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
304 if (BitLen
==0) return 0;
306 errCnt
= askmandemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
307 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
308 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
311 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
315 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
317 //PrintAndLog("ASK/Manchester decoded bitstream:");
318 // Now output the bitstream to the scrollback by line of 16 bits
319 setDemodBuf(BitStream
,BitLen
,0);
323 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
325 //set GraphBuffer for clone or sim command
326 setDemodBuf(BitStream
, BitLen
, idx
);
328 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
331 PrintAndLog("EM410x pattern found: ");
339 //takes 3 arguments - clock, invert, maxErr as integers
340 //attempts to demodulate ask while decoding manchester
341 //prints binary found and saves in graphbuffer for further commands
342 int Cmdaskmandemod(const char *Cmd
)
347 char cmdp
= param_getchar(Cmd
, 0);
348 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
349 PrintAndLog("Usage: data askmandemod [clock] <0|1> [maxError]");
350 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
351 PrintAndLog(" <invert>, 1 for invert output");
352 PrintAndLog(" [set maximum allowed errors], default = 100.");
354 PrintAndLog(" sample: data askmandemod = demod an ask/manchester tag from GraphBuffer");
355 PrintAndLog(" : data askmandemod 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
356 PrintAndLog(" : data askmandemod 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
357 PrintAndLog(" : data askmandemod 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
358 PrintAndLog(" : data askmandemod 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
362 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
363 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
364 if (invert
!= 0 && invert
!= 1) {
365 PrintAndLog("Invalid argument: %s", Cmd
);
368 size_t BitLen
= getFromGraphBuf(BitStream
);
369 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
370 if (BitLen
==0) return 0;
372 errCnt
= askmandemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
373 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
374 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
377 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
381 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
383 PrintAndLog("ASK/Manchester decoded bitstream:");
384 // Now output the bitstream to the scrollback by line of 16 bits
385 setDemodBuf(BitStream
,BitLen
,0);
389 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
391 //set GraphBuffer for clone or sim command
392 setDemodBuf(BitStream
, BitLen
, idx
);
394 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
397 PrintAndLog("EM410x pattern found: ");
406 //stricktly take 10 and 01 and convert to 0 and 1
407 int Cmdmandecoderaw(const char *Cmd
)
412 char cmdp
= param_getchar(Cmd
, 0);
413 if (strlen(Cmd
) > 1 || cmdp
== 'h' || cmdp
== 'H') {
414 PrintAndLog("Usage: data manrawdecode");
415 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
416 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
418 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
421 if (DemodBufferLen
==0) return 0;
422 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
424 for (;i
<DemodBufferLen
;++i
){
425 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
426 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
427 BitStream
[i
]=DemodBuffer
[i
];
429 if (high
>1 || low
<0 ){
430 PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
434 errCnt
=manrawdecode(BitStream
, &size
);
436 PrintAndLog("Too many errors: %d",errCnt
);
439 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
440 printBitStream(BitStream
, size
);
444 id
= Em410xDecode(BitStream
, &size
, &idx
);
446 //need to adjust to set bitstream back to manchester encoded data
447 //setDemodBuf(BitStream, size, idx);
457 //take 01 or 10 = 0 and 11 or 00 = 1
458 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
459 // and "invert" default = 0 if 1 it will invert output
460 // since it is not like manchester and doesn't have an incorrect bit pattern we
461 // cannot determine if our decode is correct or if it should be shifted by one bit
462 // the argument offset allows us to manually shift if the output is incorrect
463 // (better would be to demod and decode at the same time so we can distinguish large
464 // width waves vs small width waves to help the decode positioning) or askbiphdemod
465 int CmdBiphaseDecodeRaw(const char *Cmd
)
473 char cmdp
= param_getchar(Cmd
, 0);
474 if (strlen(Cmd
) > 2 || cmdp
== 'h' || cmdp
== 'H') {
475 PrintAndLog("Usage: data biphaserawdecode [offset] <invert>");
476 PrintAndLog(" Converts 10 or 01 to 0 and 11 or 00 to 1");
477 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
479 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
480 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
482 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
483 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
486 sscanf(Cmd
, "%i %i", &offset
, &invert
);
487 if (DemodBufferLen
==0) return 0;
488 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
489 //get graphbuffer & high and low
490 for (;i
<DemodBufferLen
;++i
){
491 if(DemodBuffer
[i
]>high
)high
=DemodBuffer
[i
];
492 else if(DemodBuffer
[i
]<low
)low
=DemodBuffer
[i
];
493 BitStream
[i
]=DemodBuffer
[i
];
495 if (high
>1 || low
<0){
496 PrintAndLog("Error: please raw demod the wave first then decode");
500 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
502 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
505 PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset
,errCnt
);
506 printBitStream(BitStream
, size
);
507 PrintAndLog("\nif bitstream does not look right try offset=1");
512 //takes 3 arguments - clock, invert, maxErr as integers
513 //attempts to demodulate ask only
514 //prints binary found and saves in graphbuffer for further commands
515 int Cmdaskrawdemod(const char *Cmd
)
520 char cmdp
= param_getchar(Cmd
, 0);
521 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
522 PrintAndLog("Usage: data askrawdemod [clock] <0|1> [maxError]");
523 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
524 PrintAndLog(" <invert>, 1 for invert output");
525 PrintAndLog(" [set maximum allowed errors], default = 100.");
527 PrintAndLog(" sample: data askrawdemod = demod an ask tag from GraphBuffer");
528 PrintAndLog(" : data askrawdemod 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
529 PrintAndLog(" : data askrawdemod 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
530 PrintAndLog(" : data askrawdemod 1 = demod an ask tag from GraphBuffer while inverting data");
531 PrintAndLog(" : data askrawdemod 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
534 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
535 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
536 if (invert
!= 0 && invert
!= 1) {
537 PrintAndLog("Invalid argument: %s", Cmd
);
540 size_t BitLen
= getFromGraphBuf(BitStream
);
541 if (BitLen
==0) return 0;
543 errCnt
= askrawdemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
544 if (errCnt
==-1||BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
545 PrintAndLog("no data found");
546 if (g_debugMode
==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt
, BitLen
, clk
, invert
);
549 PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk
, invert
, BitLen
);
551 //move BitStream back to DemodBuffer
552 setDemodBuf(BitStream
,BitLen
,0);
556 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt
);
558 PrintAndLog("ASK demoded bitstream:");
559 // Now output the bitstream to the scrollback by line of 16 bits
560 printBitStream(BitStream
,BitLen
);
565 int CmdAutoCorr(const char *Cmd
)
567 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
569 int window
= atoi(Cmd
);
572 PrintAndLog("needs a window");
575 if (window
>= GraphTraceLen
) {
576 PrintAndLog("window must be smaller than trace (%d samples)",
581 PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
583 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
585 for (int j
= 0; j
< window
; ++j
) {
586 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
588 CorrelBuffer
[i
] = sum
;
590 GraphTraceLen
= GraphTraceLen
- window
;
591 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
593 RepaintGraphWindow();
597 int CmdBitsamples(const char *Cmd
)
602 GetFromBigBuf(got
,sizeof(got
),0);
603 WaitForResponse(CMD_ACK
,NULL
);
605 for (int j
= 0; j
< sizeof(got
); j
++) {
606 for (int k
= 0; k
< 8; k
++) {
607 if(got
[j
] & (1 << (7 - k
))) {
608 GraphBuffer
[cnt
++] = 1;
610 GraphBuffer
[cnt
++] = 0;
615 RepaintGraphWindow();
620 * Convert to a bitstream
622 int CmdBitstream(const char *Cmd
)
630 int hithigh
, hitlow
, first
;
632 /* Detect high and lows and clock */
633 for (i
= 0; i
< GraphTraceLen
; ++i
)
635 if (GraphBuffer
[i
] > high
)
636 high
= GraphBuffer
[i
];
637 else if (GraphBuffer
[i
] < low
)
638 low
= GraphBuffer
[i
];
642 clock
= GetClock(Cmd
, high
, 1);
646 for (i
= 0; i
< (int)(gtl
/ clock
); ++i
)
651 /* Find out if we hit both high and low peaks */
652 for (j
= 0; j
< clock
; ++j
)
654 if (GraphBuffer
[(i
* clock
) + j
] == high
)
656 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
658 /* it doesn't count if it's the first part of our read
659 because it's really just trailing from the last sequence */
660 if (first
&& (hithigh
|| hitlow
))
661 hithigh
= hitlow
= 0;
665 if (hithigh
&& hitlow
)
669 /* If we didn't hit both high and low peaks, we had a bit transition */
670 if (!hithigh
|| !hitlow
)
673 AppendGraph(0, clock
, bit
);
676 RepaintGraphWindow();
680 int CmdBuffClear(const char *Cmd
)
682 UsbCommand c
= {CMD_BUFF_CLEAR
};
688 int CmdDec(const char *Cmd
)
690 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
691 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
693 PrintAndLog("decimated by 2");
694 RepaintGraphWindow();
699 //shift graph zero up or down based on input + or -
700 int CmdGraphShiftZero(const char *Cmd
)
704 //set options from parameters entered with the command
705 sscanf(Cmd
, "%i", &shift
);
707 for(int i
= 0; i
<GraphTraceLen
; i
++){
708 shiftedVal
=GraphBuffer
[i
]+shift
;
711 else if (shiftedVal
<-127)
713 GraphBuffer
[i
]= shiftedVal
;
719 /* Print our clock rate */
720 // uses data from graphbuffer
721 int CmdDetectClockRate(const char *Cmd
)
723 int ans
= GetClock("",0,0);
728 //fsk raw demod and print binary
729 //takes 4 arguments - Clock, invert, rchigh, rclow
730 //defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
731 int CmdFSKrawdemod(const char *Cmd
)
733 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
739 char cmdp
= param_getchar(Cmd
, 0);
740 if (strlen(Cmd
) > 4 || cmdp
== 'h' || cmdp
== 'H') {
741 PrintAndLog("Usage: data fskrawdemod [clock] <0|1> [rchigh] [rclow]");
742 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
743 PrintAndLog(" <invert>, 1 for invert output");
745 PrintAndLog(" [set maximum allowed errors], default = 100.");
747 PrintAndLog(" sample: data fskrawdemod = demod an fsk tag from GraphBuffer using autodetect");
748 PrintAndLog(" : data fskrawdemod 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
749 PrintAndLog(" : data fskrawdemod 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
750 PrintAndLog(" : data fskrawdemod 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
751 PrintAndLog(" : data fskrawdemod 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
752 PrintAndLog(" : data fskrawdemod 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
755 //set options from parameters entered with the command
756 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
758 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
760 invert
=1; //if invert option only is used
765 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
766 size_t BitLen
= getFromGraphBuf(BitStream
);
767 if (BitLen
==0) return 0;
768 //get field clock lengths
771 if (fchigh
==0 || fclow
== 0){
772 fcs
=countFC(BitStream
, BitLen
, &dummy
);
777 fchigh
= (fcs
>> 8) & 0xFF;
781 //get bit clock length
783 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
784 if (rfLen
== 0) rfLen
= 50;
786 PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert
,rfLen
,fchigh
, fclow
);
787 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
789 PrintAndLog("FSK decoded bitstream:");
790 setDemodBuf(BitStream
,size
,0);
792 // Now output the bitstream to the scrollback by line of 16 bits
793 if(size
> (8*32)+2) size
= (8*32)+2; //only output a max of 8 blocks of 32 bits most tags will have full bit stream inside that sample size
794 printBitStream(BitStream
,size
);
797 PrintAndLog("no FSK data found");
802 //by marshmellow (based on existing demod + holiman's refactor)
803 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
804 //print full HID Prox ID and some bit format details if found
805 int CmdFSKdemodHID(const char *Cmd
)
807 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
808 uint32_t hi2
=0, hi
=0, lo
=0;
810 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
811 size_t BitLen
= getFromGraphBuf(BitStream
);
812 if (BitLen
==0) return 0;
813 //get binary from fsk wave
814 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
818 PrintAndLog("DEBUG: Just Noise Detected");
819 } else if (idx
== -2) {
820 PrintAndLog("DEBUG: Error demoding fsk");
821 } else if (idx
== -3) {
822 PrintAndLog("DEBUG: Preamble not found");
823 } else if (idx
== -4) {
824 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
826 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
831 if (hi2
==0 && hi
==0 && lo
==0) {
832 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
835 if (hi2
!= 0){ //extra large HID tags
836 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
837 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
839 else { //standard HID tags <38 bits
842 uint32_t cardnum
= 0;
843 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
845 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
847 while(lo2
>1){ //find last bit set to 1 (format len bit)
855 cardnum
= (lo
>>1)&0xFFFF;
859 cardnum
= (lo
>>1)&0xFFFF;
860 fc
= ((hi
&1)<<15)|(lo
>>17);
863 cardnum
= (lo
>>1)&0xFFFFF;
864 fc
= ((hi
&1)<<11)|(lo
>>21);
867 else { //if bit 38 is not set then 37 bit format is used
872 cardnum
= (lo
>>1)&0x7FFFF;
873 fc
= ((hi
&0xF)<<12)|(lo
>>20);
876 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
877 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
878 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
880 setDemodBuf(BitStream
,BitLen
,idx
);
882 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
889 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
890 //print full Paradox Prox ID and some bit format details if found
891 int CmdFSKdemodParadox(const char *Cmd
)
893 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
894 uint32_t hi2
=0, hi
=0, lo
=0;
896 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
897 size_t BitLen
= getFromGraphBuf(BitStream
);
898 if (BitLen
==0) return 0;
899 //get binary from fsk wave
900 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
904 PrintAndLog("DEBUG: Just Noise Detected");
905 } else if (idx
== -2) {
906 PrintAndLog("DEBUG: Error demoding fsk");
907 } else if (idx
== -3) {
908 PrintAndLog("DEBUG: Preamble not found");
909 } else if (idx
== -4) {
910 PrintAndLog("DEBUG: Error in Manchester data");
912 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
917 if (hi2
==0 && hi
==0 && lo
==0){
918 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
921 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
922 uint32_t cardnum
= (lo
>>10)&0xFFFF;
924 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
925 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF );
926 setDemodBuf(BitStream
,BitLen
,idx
);
928 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
936 //IO-Prox demod - FSK RF/64 with preamble of 000000001
937 //print ioprox ID and some format details
938 int CmdFSKdemodIO(const char *Cmd
)
940 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
943 //something in graphbuffer?
944 if (GraphTraceLen
< 65) {
945 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
948 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
949 size_t BitLen
= getFromGraphBuf(BitStream
);
950 if (BitLen
==0) return 0;
952 //get binary from fsk wave
953 idx
= IOdemodFSK(BitStream
,BitLen
);
957 PrintAndLog("DEBUG: Just Noise Detected");
958 } else if (idx
== -2) {
959 PrintAndLog("DEBUG: not enough samples");
960 } else if (idx
== -3) {
961 PrintAndLog("DEBUG: error during fskdemod");
962 } else if (idx
== -4) {
963 PrintAndLog("DEBUG: Preamble not found");
964 } else if (idx
== -5) {
965 PrintAndLog("DEBUG: Separator bits not found");
967 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
974 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
975 if (BitLen
> 92) printBitStream(BitStream
,92);
980 //0 10 20 30 40 50 60
982 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
983 //-----------------------------------------------------------------------------
984 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
986 //XSF(version)facility:codeone+codetwo (raw)
989 if (g_debugMode
==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
992 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]);
993 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]);
994 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]);
995 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]);
996 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]);
997 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]);
998 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]);
1000 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
1001 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
1002 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
1003 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
1004 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
1005 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version
,facilitycode
,number
,code
,code2
);
1006 setDemodBuf(BitStream
,64,idx
);
1008 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
1016 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1017 //print full AWID Prox ID and some bit format details if found
1018 int CmdFSKdemodAWID(const char *Cmd
)
1022 //sscanf(Cmd, "%i", &verbose);
1024 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1025 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1026 size_t size
= getFromGraphBuf(BitStream
);
1027 if (size
==0) return 0;
1029 //get binary from fsk wave
1030 int idx
= AWIDdemodFSK(BitStream
, &size
);
1032 if (g_debugMode
==1){
1034 PrintAndLog("DEBUG: Error - not enough samples");
1036 PrintAndLog("DEBUG: Error - only noise found");
1038 PrintAndLog("DEBUG: Error - problem during FSK demod");
1039 // else if (idx == -3)
1040 // PrintAndLog("Error: thought we had a tag but the parity failed");
1042 PrintAndLog("DEBUG: Error - AWID preamble not found");
1044 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1046 PrintAndLog("DEBUG: Error %d",idx
);
1052 // 0 10 20 30 40 50 60
1054 // 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
1055 // -----------------------------------------------------------------------------
1056 // 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
1057 // 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
1058 // |---26 bit---| |-----117----||-------------142-------------|
1059 // b = format bit len, o = odd parity of last 3 bits
1060 // f = facility code, c = card number
1061 // w = wiegand parity
1062 // (26 bit format shown)
1064 //get raw ID before removing parities
1065 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1066 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1067 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1068 setDemodBuf(BitStream
,96,idx
);
1070 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
1072 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
1075 // ok valid card found!
1078 // 0 10 20 30 40 50 60
1080 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1081 // -----------------------------------------------------------------------------
1082 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1083 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1084 // |26 bit| |-117--| |-----142------|
1085 // b = format bit len, o = odd parity of last 3 bits
1086 // f = facility code, c = card number
1087 // w = wiegand parity
1088 // (26 bit format shown)
1091 uint32_t cardnum
= 0;
1094 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
1096 fc
= bytebits_to_byte(BitStream
+9, 8);
1097 cardnum
= bytebits_to_byte(BitStream
+17, 16);
1098 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1099 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1101 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
1103 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
1104 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
1105 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
1107 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1108 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1112 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
1115 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1120 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1121 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1122 int CmdFSKdemodPyramid(const char *Cmd
)
1124 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1125 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1126 size_t size
= getFromGraphBuf(BitStream
);
1127 if (size
==0) return 0;
1129 //get binary from fsk wave
1130 int idx
= PyramiddemodFSK(BitStream
, &size
);
1132 if (g_debugMode
==1){
1134 PrintAndLog("DEBUG: Error - not enough samples");
1136 PrintAndLog("DEBUG: Error - only noise found");
1138 PrintAndLog("DEBUG: Error - problem during FSK demod");
1140 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1142 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1144 PrintAndLog("DEBUG: Error - idx: %d",idx
);
1149 // 0 10 20 30 40 50 60
1151 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1152 // -----------------------------------------------------------------------------
1153 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1154 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1156 // 64 70 80 90 100 110 120
1158 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1159 // -----------------------------------------------------------------------------
1160 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1161 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1162 // |---115---||---------71---------|
1163 // s = format start bit, o = odd parity of last 7 bits
1164 // f = facility code, c = card number
1165 // w = wiegand parity, x = extra space for other formats
1166 // p = unknown checksum
1167 // (26 bit format shown)
1169 //get raw ID before removing parities
1170 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1171 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1172 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1173 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1174 setDemodBuf(BitStream
,128,idx
);
1176 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1178 if (g_debugMode
==1) PrintAndLog("DEBUG: Error at parity check-tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size
, idx
, rawHi3
);
1182 // ok valid card found!
1185 // 0 10 20 30 40 50 60 70
1187 // 01234567890123456789012345678901234567890123456789012345678901234567890
1188 // -----------------------------------------------------------------------
1189 // 00000000000000000000000000000000000000000000000000000000000000000000000
1190 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1194 // 1 2 34567890 1234567890123456 7 8901234
1195 // ---------------------------------------
1196 // 1 1 01110011 0000000001000110 0 1001010
1197 // s w ffffffff cccccccccccccccc w ppppppp
1198 // |--115-| |------71------|
1199 // s = format start bit, o = odd parity of last 7 bits
1200 // f = facility code, c = card number
1201 // w = wiegand parity, x = extra space for other formats
1202 // p = unknown checksum
1203 // (26 bit format shown)
1205 //find start bit to get fmtLen
1207 for (j
=0; j
<size
; j
++){
1208 if(BitStream
[j
]) break;
1210 uint8_t fmtLen
= size
-j
-8;
1212 uint32_t cardnum
= 0;
1214 //uint32_t code2 = 0;
1216 fc
= bytebits_to_byte(BitStream
+73, 8);
1217 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1218 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1219 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1220 } else if (fmtLen
==45){
1221 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1222 fc
= bytebits_to_byte(BitStream
+53, 10);
1223 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1224 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1226 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1228 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1229 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1230 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1232 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1233 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1237 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1243 int CmdFSKdemod(const char *Cmd
) //old CmdFSKdemod needs updating
1245 static const int LowTone
[] = {
1246 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1247 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1248 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1249 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1250 1, 1, 1, 1, 1, -1, -1, -1, -1, -1
1252 static const int HighTone
[] = {
1253 1, 1, 1, 1, 1, -1, -1, -1, -1,
1254 1, 1, 1, 1, -1, -1, -1, -1,
1255 1, 1, 1, 1, -1, -1, -1, -1,
1256 1, 1, 1, 1, -1, -1, -1, -1,
1257 1, 1, 1, 1, -1, -1, -1, -1,
1258 1, 1, 1, 1, -1, -1, -1, -1, -1,
1261 int lowLen
= sizeof (LowTone
) / sizeof (int);
1262 int highLen
= sizeof (HighTone
) / sizeof (int);
1263 int convLen
= (highLen
> lowLen
) ? highLen
: lowLen
;
1264 uint32_t hi
= 0, lo
= 0;
1267 int minMark
= 0, maxMark
= 0;
1269 for (i
= 0; i
< GraphTraceLen
- convLen
; ++i
) {
1270 int lowSum
= 0, highSum
= 0;
1272 for (j
= 0; j
< lowLen
; ++j
) {
1273 lowSum
+= LowTone
[j
]*GraphBuffer
[i
+j
];
1275 for (j
= 0; j
< highLen
; ++j
) {
1276 highSum
+= HighTone
[j
] * GraphBuffer
[i
+ j
];
1278 lowSum
= abs(100 * lowSum
/ lowLen
);
1279 highSum
= abs(100 * highSum
/ highLen
);
1280 GraphBuffer
[i
] = (highSum
<< 16) | lowSum
;
1283 for(i
= 0; i
< GraphTraceLen
- convLen
- 16; ++i
) {
1284 int lowTot
= 0, highTot
= 0;
1285 // 10 and 8 are f_s divided by f_l and f_h, rounded
1286 for (j
= 0; j
< 10; ++j
) {
1287 lowTot
+= (GraphBuffer
[i
+j
] & 0xffff);
1289 for (j
= 0; j
< 8; j
++) {
1290 highTot
+= (GraphBuffer
[i
+ j
] >> 16);
1292 GraphBuffer
[i
] = lowTot
- highTot
;
1293 if (GraphBuffer
[i
] > maxMark
) maxMark
= GraphBuffer
[i
];
1294 if (GraphBuffer
[i
] < minMark
) minMark
= GraphBuffer
[i
];
1297 GraphTraceLen
-= (convLen
+ 16);
1298 RepaintGraphWindow();
1300 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
1301 int max
= 0, maxPos
= 0;
1302 for (i
= 0; i
< 6000; ++i
) {
1304 for (j
= 0; j
< 3 * lowLen
; ++j
) {
1305 dec
-= GraphBuffer
[i
+ j
];
1307 for (; j
< 3 * (lowLen
+ highLen
); ++j
) {
1308 dec
+= GraphBuffer
[i
+ j
];
1316 // place start of bit sync marker in graph
1317 GraphBuffer
[maxPos
] = maxMark
;
1318 GraphBuffer
[maxPos
+ 1] = minMark
;
1322 // place end of bit sync marker in graph
1323 GraphBuffer
[maxPos
] = maxMark
;
1324 GraphBuffer
[maxPos
+1] = minMark
;
1326 PrintAndLog("actual data bits start at sample %d", maxPos
);
1327 PrintAndLog("length %d/%d", highLen
, lowLen
);
1329 uint8_t bits
[46] = {0x00};
1331 // find bit pairs and manchester decode them
1332 for (i
= 0; i
< arraylen(bits
) - 1; ++i
) {
1334 for (j
= 0; j
< lowLen
; ++j
) {
1335 dec
-= GraphBuffer
[maxPos
+ j
];
1337 for (; j
< lowLen
+ highLen
; ++j
) {
1338 dec
+= GraphBuffer
[maxPos
+ j
];
1341 // place inter bit marker in graph
1342 GraphBuffer
[maxPos
] = maxMark
;
1343 GraphBuffer
[maxPos
+ 1] = minMark
;
1345 // hi and lo form a 64 bit pair
1346 hi
= (hi
<< 1) | (lo
>> 31);
1348 // store decoded bit as binary (in hi/lo) and text (in bits[])
1356 PrintAndLog("bits: '%s'", bits
);
1357 PrintAndLog("hex: %08x %08x", hi
, lo
);
1362 //attempt to detect the field clock and bit clock for FSK
1363 int CmdFSKfcDetect(const char *Cmd
)
1365 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1366 size_t size
= getFromGraphBuf(BitStream
);
1367 if (size
==0) return 0;
1369 uint16_t ans
= countFC(BitStream
, size
, &dummy
);
1371 if (g_debugMode
) PrintAndLog("DEBUG: No data found");
1375 fc1
= (ans
>> 8) & 0xFF;
1378 uint8_t rf1
= detectFSKClk(BitStream
, size
, fc1
, fc2
);
1380 if (g_debugMode
) PrintAndLog("DEBUG: Clock detect error");
1383 if ((fc1
==10 && fc2
==8) || (fc1
==8 && fc2
==5)){
1385 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1390 PrintAndLog("DEBUG: unknown fsk field clock detected");
1391 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1397 //attempt to detect the bit clock for PSK modulations
1398 int CmdDetectPSKClockRate(const char *Cmd
)
1400 GetPskClock("",0,0);
1405 //attempt to detect the bit clock for NRZ modulations
1406 int CmdDetectNRZClockRate(const char *Cmd
)
1408 GetNrzClock("",0,0);
1413 //attempt to psk1 demod graph buffer
1414 int PSKDemod(const char *Cmd
, uint8_t verbose
)
1419 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1424 if (invert
!= 0 && invert
!= 1) {
1425 PrintAndLog("Invalid argument: %s", Cmd
);
1428 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1429 size_t BitLen
= getFromGraphBuf(BitStream
);
1430 if (BitLen
==0) return 0;
1432 errCnt
= pskRawDemod(BitStream
, &BitLen
,&clk
,&invert
);
1433 if (errCnt
> maxErr
){
1434 if (g_debugMode
==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1437 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1438 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1441 if (verbose
) PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1442 //prime demod buffer for output
1443 setDemodBuf(BitStream
,BitLen
,0);
1448 // Indala 26 bit decode
1450 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1451 int CmdIndalaDecode(const char *Cmd
)
1455 ans
= PSKDemod(Cmd
, 0);
1456 } else{ //default to RF/32
1457 ans
= PSKDemod("32", 0);
1462 PrintAndLog("Error1: %d",ans
);
1466 ans
= indala26decode(DemodBuffer
,(size_t *) &DemodBufferLen
, &invert
);
1469 PrintAndLog("Error2: %d",ans
);
1472 char showbits
[251]={0x00};
1475 PrintAndLog("Had to invert bits");
1477 //convert UID to HEX
1478 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1482 PrintAndLog("BitLen: %d",DemodBufferLen
);
1483 if (DemodBufferLen
==64){
1484 for( idx
=0; idx
<64; idx
++) {
1485 uid1
=(uid1
<<1)|(uid2
>>31);
1486 if (DemodBuffer
[idx
] == 0) {
1495 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1503 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1504 uid1
=(uid1
<<1)|(uid2
>>31);
1505 uid2
=(uid2
<<1)|(uid3
>>31);
1506 uid3
=(uid3
<<1)|(uid4
>>31);
1507 uid4
=(uid4
<<1)|(uid5
>>31);
1508 uid5
=(uid5
<<1)|(uid6
>>31);
1509 uid6
=(uid6
<<1)|(uid7
>>31);
1510 if (DemodBuffer
[idx
] == 0) {
1520 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1523 PrintAndLog("DEBUG: printing demodbuffer:");
1531 //attempt to clean psk wave noise after a peak
1532 //NOTE RELIES ON PEAKS :(
1533 int CmdPskClean(const char *Cmd)
1535 uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
1536 size_t bitLen = getFromGraphBuf(bitStream);
1537 pskCleanWave(bitStream, bitLen);
1538 setGraphBuf(bitStream, bitLen);
1544 // takes 3 arguments - clock, invert, maxErr as integers
1545 // attempts to demodulate nrz only
1546 // prints binary found and saves in demodbuffer for further commands
1547 int CmdNRZrawDemod(const char *Cmd
)
1552 char cmdp
= param_getchar(Cmd
, 0);
1553 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
1554 PrintAndLog("Usage: data nrzrawdemod [clock] <0|1> [maxError]");
1555 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1556 PrintAndLog(" <invert>, 1 for invert output");
1557 PrintAndLog(" [set maximum allowed errors], default = 100.");
1559 PrintAndLog(" sample: data nrzrawdemod = demod a nrz/direct tag from GraphBuffer");
1560 PrintAndLog(" : data nrzrawdemod 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1561 PrintAndLog(" : data nrzrawdemod 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1562 PrintAndLog(" : data nrzrawdemod 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1563 PrintAndLog(" : data nrzrawdemod 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
1568 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1573 if (invert
!= 0 && invert
!= 1) {
1574 PrintAndLog("Invalid argument: %s", Cmd
);
1577 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1578 size_t BitLen
= getFromGraphBuf(BitStream
);
1579 if (BitLen
==0) return 0;
1581 errCnt
= nrzRawDemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
1582 if (errCnt
> maxErr
){
1583 if (g_debugMode
==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1586 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1587 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1590 PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1591 //prime demod buffer for output
1592 setDemodBuf(BitStream
,BitLen
,0);
1595 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1598 PrintAndLog("NRZ demoded bitstream:");
1599 // Now output the bitstream to the scrollback by line of 16 bits
1605 // takes 3 arguments - clock, invert, maxErr as integers
1606 // attempts to demodulate psk only
1607 // prints binary found and saves in demodbuffer for further commands
1608 int CmdPSK1rawDemod(const char *Cmd
)
1611 char cmdp
= param_getchar(Cmd
, 0);
1612 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
1613 PrintAndLog("Usage: data psk1rawdemod [clock] <0|1> [maxError]");
1614 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1615 PrintAndLog(" <invert>, 1 for invert output");
1616 PrintAndLog(" [set maximum allowed errors], default = 100.");
1618 PrintAndLog(" sample: data psk1rawdemod = demod a psk1 tag from GraphBuffer");
1619 PrintAndLog(" : data psk1rawdemod 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
1620 PrintAndLog(" : data psk1rawdemod 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
1621 PrintAndLog(" : data psk1rawdemod 1 = demod a psk1 tag from GraphBuffer while inverting data");
1622 PrintAndLog(" : data psk1rawdemod 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
1625 errCnt
= PSKDemod(Cmd
, 1);
1628 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1632 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1635 PrintAndLog("PSK demoded bitstream:");
1636 // Now output the bitstream to the scrollback by line of 16 bits
1642 // takes same args as cmdpsknrzrawdemod
1643 int CmdPSK2rawDemod(const char *Cmd
)
1646 char cmdp
= param_getchar(Cmd
, 0);
1647 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
1648 PrintAndLog("Usage: data psk2rawdemod [clock] <0|1> [maxError]");
1649 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1650 PrintAndLog(" <invert>, 1 for invert output");
1651 PrintAndLog(" [set maximum allowed errors], default = 100.");
1653 PrintAndLog(" sample: data psk2rawdemod = demod a psk2 tag from GraphBuffer, autodetect clock");
1654 PrintAndLog(" : data psk2rawdemod 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
1655 PrintAndLog(" : data psk2rawdemod 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
1656 PrintAndLog(" : data psk2rawdemod 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
1657 PrintAndLog(" : data psk2rawdemod 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
1660 errCnt
=PSKDemod(Cmd
, 1);
1662 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1665 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
1668 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1669 PrintAndLog("PSK2 demoded bitstream:");
1670 // Now output the bitstream to the scrollback by line of 16 bits
1674 PrintAndLog("PSK2 demoded bitstream:");
1675 // Now output the bitstream to the scrollback by line of 16 bits
1681 int CmdGrid(const char *Cmd
)
1683 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1684 PlotGridXdefault
= PlotGridX
;
1685 PlotGridYdefault
= PlotGridY
;
1686 RepaintGraphWindow();
1690 int CmdHexsamples(const char *Cmd
)
1695 char string_buf
[25];
1696 char* string_ptr
= string_buf
;
1697 uint8_t got
[BIGBUF_SIZE
];
1699 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1701 /* if no args send something */
1702 if (requested
== 0) {
1705 if (offset
+ requested
> sizeof(got
)) {
1706 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
1710 GetFromBigBuf(got
,requested
,offset
);
1711 WaitForResponse(CMD_ACK
,NULL
);
1714 for (j
= 0; j
< requested
; j
++) {
1716 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1718 *(string_ptr
- 1) = '\0'; // remove the trailing space
1719 PrintAndLog("%s", string_buf
);
1720 string_buf
[0] = '\0';
1721 string_ptr
= string_buf
;
1724 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1725 *(string_ptr
- 1) = '\0';
1726 PrintAndLog("%s", string_buf
);
1727 string_buf
[0] = '\0';
1733 int CmdHide(const char *Cmd
)
1739 int CmdHpf(const char *Cmd
)
1744 for (i
= 10; i
< GraphTraceLen
; ++i
)
1745 accum
+= GraphBuffer
[i
];
1746 accum
/= (GraphTraceLen
- 10);
1747 for (i
= 0; i
< GraphTraceLen
; ++i
)
1748 GraphBuffer
[i
] -= accum
;
1750 RepaintGraphWindow();
1754 int CmdSamples(const char *Cmd
)
1756 uint8_t got
[BIGBUF_SIZE
] = {0x00};
1758 int n
= strtol(Cmd
, NULL
, 0);
1762 if (n
> sizeof(got
))
1765 PrintAndLog("Reading %d samples from device memory\n", n
);
1766 GetFromBigBuf(got
,n
,0);
1767 WaitForResponse(CMD_ACK
,NULL
);
1768 for (int j
= 0; j
< n
; j
++) {
1769 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
1772 RepaintGraphWindow();
1776 int CmdTuneSamples(const char *Cmd
)
1779 printf("\nMeasuring antenna characteristics, please wait...");
1781 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
1785 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
1789 PrintAndLog("\nNo response from Proxmark. Aborting...");
1795 int vLf125
, vLf134
, vHf
;
1796 vLf125
= resp
.arg
[0] & 0xffff;
1797 vLf134
= resp
.arg
[0] >> 16;
1798 vHf
= resp
.arg
[1] & 0xffff;;
1799 peakf
= resp
.arg
[2] & 0xffff;
1800 peakv
= resp
.arg
[2] >> 16;
1802 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
1803 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
1804 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
1805 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
1807 PrintAndLog("# Your LF antenna is unusable.");
1808 else if (peakv
<10000)
1809 PrintAndLog("# Your LF antenna is marginal.");
1811 PrintAndLog("# Your HF antenna is unusable.");
1813 PrintAndLog("# Your HF antenna is marginal.");
1815 for (int i
= 0; i
< 256; i
++) {
1816 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
1819 PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
1821 GraphTraceLen
= 256;
1828 int CmdLoad(const char *Cmd
)
1830 char filename
[FILE_PATH_SIZE
] = {0x00};
1834 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1835 memcpy(filename
, Cmd
, len
);
1837 FILE *f
= fopen(filename
, "r");
1839 PrintAndLog("couldn't open '%s'", filename
);
1845 while (fgets(line
, sizeof (line
), f
)) {
1846 GraphBuffer
[GraphTraceLen
] = atoi(line
);
1850 PrintAndLog("loaded %d samples", GraphTraceLen
);
1851 RepaintGraphWindow();
1855 int CmdLtrim(const char *Cmd
)
1859 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
1860 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
1861 GraphTraceLen
-= ds
;
1863 RepaintGraphWindow();
1867 // trim graph to input argument length
1868 int CmdRtrim(const char *Cmd
)
1874 RepaintGraphWindow();
1879 * Manchester demodulate a bitstream. The bitstream needs to be already in
1880 * the GraphBuffer as 0 and 1 values
1882 * Give the clock rate as argument in order to help the sync - the algorithm
1883 * resyncs at each pulse anyway.
1885 * Not optimized by any means, this is the 1st time I'm writing this type of
1886 * routine, feel free to improve...
1888 * 1st argument: clock rate (as number of samples per clock rate)
1889 * Typical values can be 64, 32, 128...
1891 int CmdManchesterDemod(const char *Cmd
)
1893 int i
, j
, invert
= 0;
1899 int hithigh
, hitlow
, first
;
1905 /* check if we're inverting output */
1908 PrintAndLog("Inverting output");
1913 while(*Cmd
== ' '); // in case a 2nd argument was given
1916 /* Holds the decoded bitstream: each clock period contains 2 bits */
1917 /* later simplified to 1 bit after manchester decoding. */
1918 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
1919 /* int BitStream[GraphTraceLen*2/clock+10]; */
1921 /* But it does not work if compiling on WIndows: therefore we just allocate a */
1923 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
] = {0};
1925 /* Detect high and lows */
1926 for (i
= 0; i
< GraphTraceLen
; i
++)
1928 if (GraphBuffer
[i
] > high
)
1929 high
= GraphBuffer
[i
];
1930 else if (GraphBuffer
[i
] < low
)
1931 low
= GraphBuffer
[i
];
1935 clock
= GetClock(Cmd
, high
, 1);
1937 int tolerance
= clock
/4;
1939 /* Detect first transition */
1940 /* Lo-Hi (arbitrary) */
1941 /* skip to the first high */
1942 for (i
= 0; i
< GraphTraceLen
; i
++)
1943 if (GraphBuffer
[i
] == high
)
1945 /* now look for the first low */
1946 for (; i
< GraphTraceLen
; i
++)
1948 if (GraphBuffer
[i
] == low
)
1955 /* If we're not working with 1/0s, demod based off clock */
1958 bit
= 0; /* We assume the 1st bit is zero, it may not be
1959 * the case: this routine (I think) has an init problem.
1962 for (; i
< (int)(GraphTraceLen
/ clock
); i
++)
1968 /* Find out if we hit both high and low peaks */
1969 for (j
= 0; j
< clock
; j
++)
1971 if (GraphBuffer
[(i
* clock
) + j
] == high
)
1973 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
1976 /* it doesn't count if it's the first part of our read
1977 because it's really just trailing from the last sequence */
1978 if (first
&& (hithigh
|| hitlow
))
1979 hithigh
= hitlow
= 0;
1983 if (hithigh
&& hitlow
)
1987 /* If we didn't hit both high and low peaks, we had a bit transition */
1988 if (!hithigh
|| !hitlow
)
1991 BitStream
[bit2idx
++] = bit
^ invert
;
1995 /* standard 1/0 bitstream */
1999 /* Then detect duration between 2 successive transitions */
2000 for (bitidx
= 1; i
< GraphTraceLen
; i
++)
2002 if (GraphBuffer
[i
-1] != GraphBuffer
[i
])
2007 // Error check: if bitidx becomes too large, we do not
2008 // have a Manchester encoded bitstream or the clock is really
2010 if (bitidx
> (GraphTraceLen
*2/clock
+8) ) {
2011 PrintAndLog("Error: the clock you gave is probably wrong, aborting.");
2014 // Then switch depending on lc length:
2015 // Tolerance is 1/4 of clock rate (arbitrary)
2016 if (abs(lc
-clock
/2) < tolerance
) {
2017 // Short pulse : either "1" or "0"
2018 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2019 } else if (abs(lc
-clock
) < tolerance
) {
2020 // Long pulse: either "11" or "00"
2021 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2022 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2026 PrintAndLog("Warning: Manchester decode error for pulse width detection.");
2027 PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");
2031 PrintAndLog("Error: too many detection errors, aborting.");
2038 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
2039 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
2040 // to stop output at the final bitidx2 value, not bitidx
2041 for (i
= 0; i
< bitidx
; i
+= 2) {
2042 if ((BitStream
[i
] == 0) && (BitStream
[i
+1] == 1)) {
2043 BitStream
[bit2idx
++] = 1 ^ invert
;
2044 } else if ((BitStream
[i
] == 1) && (BitStream
[i
+1] == 0)) {
2045 BitStream
[bit2idx
++] = 0 ^ invert
;
2047 // We cannot end up in this state, this means we are unsynchronized,
2051 PrintAndLog("Unsynchronized, resync...");
2052 PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
2056 PrintAndLog("Error: too many decode errors, aborting.");
2063 PrintAndLog("Manchester decoded bitstream");
2064 // Now output the bitstream to the scrollback by line of 16 bits
2065 for (i
= 0; i
< (bit2idx
-16); i
+=16) {
2066 PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
2087 /* Modulate our data into manchester */
2088 int CmdManchesterMod(const char *Cmd
)
2092 int bit
, lastbit
, wave
;
2095 clock
= GetClock(Cmd
, 0, 1);
2099 for (i
= 0; i
< (int)(GraphTraceLen
/ clock
); i
++)
2101 bit
= GraphBuffer
[i
* clock
] ^ 1;
2103 for (j
= 0; j
< (int)(clock
/2); j
++)
2104 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
;
2105 for (j
= (int)(clock
/2); j
< clock
; j
++)
2106 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1;
2108 /* Keep track of how we start our wave and if we changed or not this time */
2109 wave
^= bit
^ lastbit
;
2113 RepaintGraphWindow();
2117 int CmdNorm(const char *Cmd
)
2120 int max
= INT_MIN
, min
= INT_MAX
;
2122 for (i
= 10; i
< GraphTraceLen
; ++i
) {
2123 if (GraphBuffer
[i
] > max
)
2124 max
= GraphBuffer
[i
];
2125 if (GraphBuffer
[i
] < min
)
2126 min
= GraphBuffer
[i
];
2130 for (i
= 0; i
< GraphTraceLen
; ++i
) {
2131 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
2133 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2136 RepaintGraphWindow();
2140 int CmdPlot(const char *Cmd
)
2146 int CmdSave(const char *Cmd
)
2148 char filename
[FILE_PATH_SIZE
] = {0x00};
2152 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2153 memcpy(filename
, Cmd
, len
);
2156 FILE *f
= fopen(filename
, "w");
2158 PrintAndLog("couldn't open '%s'", filename
);
2162 for (i
= 0; i
< GraphTraceLen
; i
++) {
2163 fprintf(f
, "%d\n", GraphBuffer
[i
]);
2166 PrintAndLog("saved to '%s'", Cmd
);
2170 int CmdScale(const char *Cmd
)
2172 CursorScaleFactor
= atoi(Cmd
);
2173 if (CursorScaleFactor
== 0) {
2174 PrintAndLog("bad, can't have zero scale");
2175 CursorScaleFactor
= 1;
2177 RepaintGraphWindow();
2181 int CmdThreshold(const char *Cmd
)
2183 int threshold
= atoi(Cmd
);
2185 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2186 if (GraphBuffer
[i
] >= threshold
)
2189 GraphBuffer
[i
] = -1;
2191 RepaintGraphWindow();
2195 int CmdDirectionalThreshold(const char *Cmd
)
2197 int8_t upThres
= param_get8(Cmd
, 0);
2198 int8_t downThres
= param_get8(Cmd
, 1);
2200 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
2202 int lastValue
= GraphBuffer
[0];
2203 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2205 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
2206 // Apply first threshold to samples heading up
2207 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
2209 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2212 // Apply second threshold to samples heading down
2213 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
2215 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2216 GraphBuffer
[i
] = -1;
2220 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2221 GraphBuffer
[i
] = GraphBuffer
[i
-1];
2225 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
2226 RepaintGraphWindow();
2230 int CmdZerocrossings(const char *Cmd
)
2232 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2239 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2240 if (GraphBuffer
[i
] * sign
>= 0) {
2241 // No change in sign, reproduce the previous sample count.
2243 GraphBuffer
[i
] = lastZc
;
2245 // Change in sign, reset the sample count.
2247 GraphBuffer
[i
] = lastZc
;
2255 RepaintGraphWindow();
2259 static command_t CommandTable
[] =
2261 {"help", CmdHelp
, 1, "This help"},
2262 {"amp", CmdAmp
, 1, "Amplify peaks"},
2263 {"askdemod", Cmdaskdemod
, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
2264 {"askem410xdemod",CmdAskEM410xDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
2265 {"askmandemod", Cmdaskmandemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
2266 {"askrawdemod", Cmdaskrawdemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
2267 {"autocorr", CmdAutoCorr
, 1, "<window length> -- Autocorrelation over window"},
2268 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},
2269 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2270 {"bitstream", CmdBitstream
, 1, "[clock rate] -- Convert waveform into a bitstream"},
2271 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2272 {"dec", CmdDec
, 1, "Decimate samples"},
2273 {"detectclock", CmdDetectClockRate
, 1, "Detect ASK clock rate"},
2274 {"fskdemod", CmdFSKdemod
, 1, "Demodulate graph window as a HID FSK"},
2275 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate graph window as an AWID FSK tag using raw"},
2276 {"fskfcdetect", CmdFSKfcDetect
, 1, "Try to detect the Field Clock of an FSK wave"},
2277 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate graph window as a HID FSK tag using raw"},
2278 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate graph window as an IO Prox tag FSK using raw"},
2279 {"fskpyramiddemod",CmdFSKdemodPyramid
,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
2280 {"fskparadoxdemod",CmdFSKdemodParadox
,1, "Demodulate graph window as a Paradox FSK tag using raw"},
2281 {"fskrawdemod", CmdFSKrawdemod
, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
2282 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2283 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2284 {"hide", CmdHide
, 1, "Hide graph window"},
2285 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2286 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2287 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2288 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2289 {"mandemod", CmdManchesterDemod
, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
2290 {"manrawdecode", Cmdmandecoderaw
, 1, "Manchester decode binary stream already in graph buffer"},
2291 {"manmod", CmdManchesterMod
, 1, "[clock rate] -- Manchester modulate a binary stream"},
2292 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2293 {"nrzdetectclock",CmdDetectNRZClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
2294 {"nrzrawdemod", CmdNRZrawDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"},
2295 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2296 {"pskdetectclock",CmdDetectPSKClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
2297 {"pskindalademod",CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"},
2298 {"psk1rawdemod", CmdPSK1rawDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"},
2299 {"psk2rawdemod", CmdPSK2rawDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
2300 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window"},
2301 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2302 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2303 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2304 {"shiftgraphzero",CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2305 {"threshold", CmdThreshold
, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
2306 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2307 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2308 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2309 {NULL
, NULL
, 0, NULL
}
2312 int CmdData(const char *Cmd
)
2314 CmdsParse(CommandTable
, Cmd
);
2318 int CmdHelp(const char *Cmd
)
2320 CmdsHelp(CommandTable
);