]>
cvs.zerfleddert.de Git - proxmark3-svn/blob - client/cmddata.c
0a8bcd7a90c5b2ef992f8b9a22f2020cff1f476b
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"
25 static int CmdHelp ( const char * Cmd
);
27 int CmdAmp ( const char * Cmd
)
29 int i
, rising
, falling
;
30 int max
= INT_MIN
, min
= INT_MAX
;
32 for ( i
= 10 ; i
< GraphTraceLen
; ++ i
) {
33 if ( GraphBuffer
[ i
] > max
)
35 if ( GraphBuffer
[ i
] < min
)
41 for ( i
= 0 ; i
< GraphTraceLen
; ++ i
) {
42 if ( GraphBuffer
[ i
+ 1 ] < GraphBuffer
[ i
]) {
49 if ( GraphBuffer
[ i
+ 1 ] > GraphBuffer
[ i
]) {
63 * Generic command to demodulate ASK.
65 * Argument is convention: positive or negative (High mod means zero
66 * or high mod means one)
68 * Updates the Graph trace with 0/1 values
73 //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
74 int Cmdaskdemod ( const char * Cmd
)
77 int c
, high
= 0 , low
= 0 ;
79 // TODO: complain if we do not give 2 arguments here !
80 // (AL - this doesn't make sense! we're only using one argument!!!)
81 sscanf ( Cmd
, "%i" , & c
);
83 /* Detect high and lows and clock */
85 for ( i
= 0 ; i
< GraphTraceLen
; ++ i
)
87 if ( GraphBuffer
[ i
] > high
)
88 high
= GraphBuffer
[ i
];
89 else if ( GraphBuffer
[ i
] < low
)
94 if ( c
!= 0 && c
!= 1 ) {
95 PrintAndLog ( "Invalid argument: %s" , Cmd
);
99 if ( GraphBuffer
[ 0 ] > 0 ) {
100 GraphBuffer
[ 0 ] = 1 - c
;
104 for ( i
= 1 ; i
< GraphTraceLen
; ++ i
) {
105 /* Transitions are detected at each peak
106 * Transitions are either:
107 * - we're low: transition if we hit a high
108 * - we're high: transition if we hit a low
109 * (we need to do it this way because some tags keep high or
110 * low for long periods, others just reach the peak and go
113 //[marhsmellow] change == to >= for high and <= for low for fuzz
114 if (( GraphBuffer
[ i
] == high
) && ( GraphBuffer
[ i
- 1 ] == c
)) {
115 GraphBuffer
[ i
] = 1 - c
;
116 } else if (( GraphBuffer
[ i
] == low
) && ( GraphBuffer
[ i
- 1 ] == ( 1 - c
))){
120 GraphBuffer
[ i
] = GraphBuffer
[ i
- 1 ];
123 RepaintGraphWindow ();
128 void printBitStream ( uint8_t BitStream
[], uint32_t bitLen
)
132 PrintAndLog ( "Too few bits found: %d" , bitLen
);
135 if ( bitLen
> 512 ) bitLen
= 512 ;
136 for ( i
= 0 ; i
<= ( bitLen
- 16 ); i
+= 16 ) {
137 PrintAndLog ( "%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i" ,
158 void printEM410x ( uint64_t id
)
162 uint64_t id2lo
= 0 ; //id2hi=0,
165 for ( ii
= 5 ; ii
> 0 ; ii
--){
167 id2lo
=( id2lo
<< 1LL )|(( id
& ( iii
<<( i
+(( ii
- 1 )* 8 ))))>>( i
+(( ii
- 1 )* 8 )));
171 PrintAndLog ( "EM TAG ID : %010llx" , id
);
172 PrintAndLog ( "Unique TAG ID: %010llx" , id2lo
); //id2hi,
173 PrintAndLog ( "DEZ 8 : %08lld" , id
& 0xFFFFFF );
174 PrintAndLog ( "DEZ 10 : %010lld" , id
& 0xFFFFFF );
175 PrintAndLog ( "DEZ 5.5 : %05lld.%05lld" ,( id
>> 16LL ) & 0xFFFF ,( id
& 0xFFFF ));
176 PrintAndLog ( "DEZ 3.5A : %03lld.%05lld" ,( id
>> 32ll ),( id
& 0xFFFF ));
177 PrintAndLog ( "DEZ 14/IK2 : %014lld" , id
);
178 PrintAndLog ( "DEZ 15/IK3 : %015lld" , id2lo
);
179 PrintAndLog ( "Other : %05lld_%03lld_%08lld" ,( id
& 0xFFFF ),(( id
>> 16LL ) & 0xFF ),( id
& 0xFFFFFF ));
185 int CmdEm410xDecode ( const char * Cmd
)
188 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
190 i
= getFromGraphBuf ( BitStream
);
191 id
= Em410xDecode ( BitStream
, i
);
198 //takes 2 arguments - clock and invert both as integers
199 //attempts to demodulate ask while decoding manchester
200 //prints binary found and saves in graphbuffer for further commands
201 int Cmdaskmandemod ( const char * Cmd
)
205 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
206 sscanf ( Cmd
, "%i %i" , & clk
, & invert
);
207 if ( invert
!= 0 && invert
!= 1 ) {
208 PrintAndLog ( "Invalid argument: %s" , Cmd
);
211 uint32_t BitLen
= getFromGraphBuf ( BitStream
);
214 errCnt
= askmandemod ( BitStream
, & BitLen
,& clk
,& invert
);
215 if ( errCnt
==- 1 ){ //if fatal error (or -1)
216 //PrintAndLog("no data found");
219 PrintAndLog ( "Using Clock: %d and invert=%d" , clk
, invert
);
220 //no longer put BitStream back into GraphBuffer...
221 //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum);
222 //move BitStream back to GraphBuffer
225 for (i=0; i < bitnum; ++i){
226 GraphBuffer[i]=BitStream[i];
228 GraphTraceLen=bitnum;
229 RepaintGraphWindow();
233 PrintAndLog ( "# Errors during Demoding (shown as 77 in bit stream): %d" , errCnt
);
235 PrintAndLog ( "ASK/Manchester decoded bitstream:" );
236 // Now output the bitstream to the scrollback by line of 16 bits
237 printBitStream ( BitStream
, BitLen
);
239 lo
= Em410xDecode ( BitStream
, BitLen
);
241 //set GraphBuffer for clone or sim command
242 setGraphBuf ( BitStream
, BitLen
);
243 PrintAndLog ( "EM410x pattern found: " );
246 if ( BitLen
> 16 ) return 1 ;
252 //stricktly take 10 and 01 and convert to 0 and 1
253 int Cmdmandecoderaw ( const char * Cmd
)
258 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
260 for (; i
< GraphTraceLen
;++ i
){
261 if ( GraphBuffer
[ i
]> high
) high
= GraphBuffer
[ i
];
262 else if ( GraphBuffer
[ i
]< low
) low
= GraphBuffer
[ i
];
263 BitStream
[ i
]= GraphBuffer
[ i
];
265 if ( high
> 1 || low
< 0 ){
266 PrintAndLog ( "Error: please raw demod the wave first then mancheseter raw decode" );
270 errCnt
= manrawdecode ( BitStream
,& bitnum
);
272 PrintAndLog ( "Too many errors: %d" , errCnt
);
275 PrintAndLog ( "Manchester Decoded - # errors:%d - data:" , errCnt
);
276 printBitStream ( BitStream
, bitnum
);
278 //put back in graphbuffer
280 for ( i
= 0 ; i
< bitnum
;++ i
){
281 GraphBuffer
[ i
]= BitStream
[ i
];
283 GraphTraceLen
= bitnum
;
284 RepaintGraphWindow ();
286 id
= Em410xDecode ( BitStream
, i
);
294 //take 01 or 10 = 0 and 11 or 00 = 1
295 //takes 1 argument "offset" default = 0 if 1 it will shift the decode by one bit
296 // since it is not like manchester and doesn't have an incorrect bit pattern we
297 // cannot determine if our decode is correct or if it should be shifted by one bit
298 // the argument offset allows us to manually shift if the output is incorrect
299 // (better would be to demod and decode at the same time so we can distinguish large
300 // width waves vs small width waves to help the decode positioning) or askbiphdemod
301 int CmdBiphaseDecodeRaw ( const char * Cmd
)
308 sscanf ( Cmd
, "%i" , & offset
);
309 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
310 //get graphbuffer & high and low
311 for (; i
< GraphTraceLen
;++ i
){
312 if ( GraphBuffer
[ i
]> high
) high
= GraphBuffer
[ i
];
313 else if ( GraphBuffer
[ i
]< low
) low
= GraphBuffer
[ i
];
314 BitStream
[ i
]= GraphBuffer
[ i
];
316 if ( high
> 1 || low
< 0 ){
317 PrintAndLog ( "Error: please raw demod the wave first then decode" );
321 errCnt
= BiphaseRawDecode ( BitStream
,& bitnum
, offset
);
323 PrintAndLog ( "Too many errors attempting to decode: %d" , errCnt
);
326 PrintAndLog ( "Biphase Decoded using offset: %d - # errors:%d - data:" , offset
, errCnt
);
327 printBitStream ( BitStream
, bitnum
);
328 PrintAndLog ( " \n if bitstream does not look right try offset=1" );
334 //takes 2 arguments - clock and invert both as integers
335 //attempts to demodulate ask only
336 //prints binary found and saves in graphbuffer for further commands
337 int Cmdaskrawdemod ( const char * Cmd
)
342 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
343 sscanf ( Cmd
, "%i %i" , & clk
, & invert
);
344 if ( invert
!= 0 && invert
!= 1 ) {
345 PrintAndLog ( "Invalid argument: %s" , Cmd
);
348 int BitLen
= getFromGraphBuf ( BitStream
);
350 errCnt
= askrawdemod ( BitStream
, & BitLen
,& clk
,& invert
);
351 if ( errCnt
==- 1 ){ //throw away static - allow 1 and -1 (in case of threshold command first)
352 PrintAndLog ( "no data found" );
355 PrintAndLog ( "Using Clock: %d and invert=%d" , clk
, invert
);
356 //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum);
357 //move BitStream back to GraphBuffer
360 for ( i
= 0 ; i
< BitLen
; ++ i
){
361 GraphBuffer
[ i
]= BitStream
[ i
];
363 GraphTraceLen
= BitLen
;
364 RepaintGraphWindow ();
368 PrintAndLog ( "# Errors during Demoding (shown as 77 in bit stream): %d" , errCnt
);
370 PrintAndLog ( "ASK demoded bitstream:" );
371 // Now output the bitstream to the scrollback by line of 16 bits
372 printBitStream ( BitStream
, BitLen
);
377 int CmdAutoCorr ( const char * Cmd
)
379 static int CorrelBuffer
[ MAX_GRAPH_TRACE_LEN
];
381 int window
= atoi ( Cmd
);
384 PrintAndLog ( "needs a window" );
387 if ( window
>= GraphTraceLen
) {
388 PrintAndLog ( "window must be smaller than trace (%d samples)" ,
393 PrintAndLog ( "performing %d correlations" , GraphTraceLen
- window
);
395 for ( int i
= 0 ; i
< GraphTraceLen
- window
; ++ i
) {
397 for ( int j
= 0 ; j
< window
; ++ j
) {
398 sum
+= ( GraphBuffer
[ j
]* GraphBuffer
[ i
+ j
]) / 256 ;
400 CorrelBuffer
[ i
] = sum
;
402 GraphTraceLen
= GraphTraceLen
- window
;
403 memcpy ( GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof ( int ));
405 RepaintGraphWindow ();
409 int CmdBitsamples ( const char * Cmd
)
414 GetFromBigBuf ( got
, sizeof ( got
), 0 );
415 WaitForResponse ( CMD_ACK
, NULL
);
417 for ( int j
= 0 ; j
< sizeof ( got
); j
++) {
418 for ( int k
= 0 ; k
< 8 ; k
++) {
419 if ( got
[ j
] & ( 1 << ( 7 - k
))) {
420 GraphBuffer
[ cnt
++] = 1 ;
422 GraphBuffer
[ cnt
++] = 0 ;
427 RepaintGraphWindow ();
432 * Convert to a bitstream
434 int CmdBitstream ( const char * Cmd
)
442 int hithigh
, hitlow
, first
;
444 /* Detect high and lows and clock */
445 for ( i
= 0 ; i
< GraphTraceLen
; ++ i
)
447 if ( GraphBuffer
[ i
] > high
)
448 high
= GraphBuffer
[ i
];
449 else if ( GraphBuffer
[ i
] < low
)
450 low
= GraphBuffer
[ i
];
454 clock
= GetClock ( Cmd
, high
, 1 );
458 for ( i
= 0 ; i
< ( int )( gtl
/ clock
); ++ i
)
463 /* Find out if we hit both high and low peaks */
464 for ( j
= 0 ; j
< clock
; ++ j
)
466 if ( GraphBuffer
[( i
* clock
) + j
] == high
)
468 else if ( GraphBuffer
[( i
* clock
) + j
] == low
)
470 /* it doesn't count if it's the first part of our read
471 because it's really just trailing from the last sequence */
472 if ( first
&& ( hithigh
|| hitlow
))
473 hithigh
= hitlow
= 0 ;
477 if ( hithigh
&& hitlow
)
481 /* If we didn't hit both high and low peaks, we had a bit transition */
482 if (! hithigh
|| ! hitlow
)
485 AppendGraph ( 0 , clock
, bit
);
486 // for (j = 0; j < (int)(clock/2); j++)
487 // GraphBuffer[(i * clock) + j] = bit ^ 1;
488 // for (j = (int)(clock/2); j < clock; j++)
489 // GraphBuffer[(i * clock) + j] = bit;
492 RepaintGraphWindow ();
496 int CmdBuffClear ( const char * Cmd
)
498 UsbCommand c
= { CMD_BUFF_CLEAR
};
504 int CmdDec ( const char * Cmd
)
506 for ( int i
= 0 ; i
< ( GraphTraceLen
/ 2 ); ++ i
)
507 GraphBuffer
[ i
] = GraphBuffer
[ i
* 2 ];
509 PrintAndLog ( "decimated by 2" );
510 RepaintGraphWindow ();
514 /* Print our clock rate */
515 // uses data from graphbuffer
516 int CmdDetectClockRate ( const char * Cmd
)
519 //int clock = DetectASKClock(0);
520 //PrintAndLog("Auto-detected clock rate: %d", clock);
525 //fsk raw demod and print binary
526 //takes 2 arguments - Clock and invert
527 //defaults: clock = 50, invert=0
528 int CmdFSKrawdemod ( const char * Cmd
)
530 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
534 //set options from parameters entered with the command
535 if ( strlen ( Cmd
)> 0 && strlen ( Cmd
)<= 2 ) {
536 rfLen
= param_get8 ( Cmd
, 0 ); //if rfLen option only is used
538 invert
= 1 ; //if invert option only is used
540 } else if ( rfLen
== 0 ) rfLen
= 50 ;
543 rfLen
= param_get8 ( Cmd
, 0 ); //if both options are used
544 invert
= param_get8 ( Cmd
, 1 );
546 PrintAndLog ( "Args invert: %d \n Clock:%d" , invert
, rfLen
);
548 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
549 uint32_t BitLen
= getFromGraphBuf ( BitStream
);
550 int size
= fskdemod ( BitStream
, BitLen
, rfLen
, invert
);
552 PrintAndLog ( "FSK decoded bitstream:" );
554 for ( i
= 0 ; i
< size
;++ i
){
555 GraphBuffer
[ i
]= BitStream
[ i
];
558 RepaintGraphWindow ();
560 // Now output the bitstream to the scrollback by line of 16 bits
561 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
562 printBitStream ( BitStream
, size
);
564 PrintAndLog ( "no FSK data found" );
569 //by marshmellow (based on existing demod + holiman's refactor)
570 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
571 //print full HID Prox ID and some bit format details if found
572 int CmdFSKdemodHID ( const char * Cmd
)
574 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
575 uint32_t hi2
= 0 , hi
= 0 , lo
= 0 ;
577 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
578 uint32_t BitLen
= getFromGraphBuf ( BitStream
);
579 //get binary from fsk wave
580 size_t size
= HIDdemodFSK ( BitStream
, BitLen
,& hi2
,& hi
,& lo
);
582 PrintAndLog ( "Error demoding fsk" );
585 if ( hi2
== 0 && hi
== 0 && lo
== 0 ) return 0 ;
586 if ( hi2
!= 0 ){ //extra large HID tags
587 PrintAndLog ( "TAG ID: %x%08x%08x (%d)" ,
588 ( unsigned int ) hi2
, ( unsigned int ) hi
, ( unsigned int ) lo
, ( unsigned int ) ( lo
>> 1 ) & 0xFFFF );
589 setGraphBuf ( BitStream
, BitLen
);
592 else { //standard HID tags <38 bits
593 //Dbprintf("TAG ID: %x%08x (%d)",(unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); //old print cmd
596 uint32_t cardnum
= 0 ;
597 if ((( hi
>> 5 )& 1 )== 1 ){ //if bit 38 is set then < 37 bit format is used
599 lo2
=((( hi
& 15 ) << 12 ) | ( lo
>> 20 )); //get bits 21-37 to check for format len bit
601 while ( lo2
> 1 ){ //find last bit set to 1 (format len bit)
609 cardnum
= ( lo
>> 1 )& 0xFFFF ;
613 cardnum
= ( lo
>> 1 )& 0x7FFFF ;
614 fc
= (( hi
& 0xF )<< 12 )|( lo
>> 20 );
617 cardnum
= ( lo
>> 1 )& 0xFFFF ;
618 fc
= (( hi
& 1 )<< 15 )|( lo
>> 17 );
621 cardnum
= ( lo
>> 1 )& 0xFFFFF ;
622 fc
= (( hi
& 1 )<< 11 )|( lo
>> 21 );
625 else { //if bit 38 is not set then 37 bit format is used
630 cardnum
= ( lo
>> 1 )& 0x7FFFF ;
631 fc
= (( hi
& 0xF )<< 12 )|( lo
>> 20 );
634 PrintAndLog ( "TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d" ,
635 ( unsigned int ) hi
, ( unsigned int ) lo
, ( unsigned int ) ( lo
>> 1 ) & 0xFFFF ,
636 ( unsigned int ) fmtLen
, ( unsigned int ) fc
, ( unsigned int ) cardnum
);
637 setGraphBuf ( BitStream
, BitLen
);
644 //IO-Prox demod - FSK RF/64 with preamble of 000000001
645 //print ioprox ID and some format details
646 int CmdFSKdemodIO ( const char * Cmd
)
648 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
651 //something in graphbuffer
652 if ( GraphTraceLen
< 65 ) return 0 ;
653 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
]={ 0 };
654 uint32_t BitLen
= getFromGraphBuf ( BitStream
);
655 //get binary from fsk wave
656 // PrintAndLog("DEBUG: got buff");
657 idx
= IOdemodFSK ( BitStream
, BitLen
);
659 //PrintAndLog("Error demoding fsk");
662 // PrintAndLog("DEBUG: Got IOdemodFSK");
664 //PrintAndLog("IO Prox Data not found - FSK Data:");
665 //if (BitLen > 92) printBitStream(BitStream,92);
669 //0 10 20 30 40 50 60
671 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
672 //-----------------------------------------------------------------------------
673 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
675 //XSF(version)facility:codeone+codetwo (raw)
677 if ( idx
+ 64 > BitLen
) return 0 ;
678 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 ]);
679 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 ]);
680 PrintAndLog ( "%d%d%d%d%d%d%d%d %d" , 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 ]);
681 PrintAndLog ( "%d%d%d%d%d%d%d%d %d" , 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 ]);
682 PrintAndLog ( "%d%d%d%d%d%d%d%d %d" , 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 ]);
683 PrintAndLog ( "%d%d%d%d%d%d%d%d %d" , 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 ]);
684 PrintAndLog ( "%d%d%d%d%d%d%d%d %d%d" , 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 ]);
686 uint32_t code
= bytebits_to_byte ( BitStream
+ idx
, 32 );
687 uint32_t code2
= bytebits_to_byte ( BitStream
+ idx
+ 32 , 32 );
688 short version
= bytebits_to_byte ( BitStream
+ idx
+ 27 , 8 ); //14,4
689 uint8_t facilitycode
= bytebits_to_byte ( BitStream
+ idx
+ 19 , 8 ) ;
690 uint16_t number
= ( bytebits_to_byte ( BitStream
+ idx
+ 36 , 8 )<< 8 )|( bytebits_to_byte ( BitStream
+ idx
+ 45 , 8 )); //36,9
692 PrintAndLog ( "XSF(%02d)%02x:%d (%08x%08x)" , version
, facilitycode
, number
, code
, code2
);
693 setGraphBuf ( BitStream
, BitLen
);
696 int CmdFSKdemod ( const char * Cmd
) //old CmdFSKdemod needs updating
698 static const int LowTone
[] = {
699 1 , 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 , - 1 ,
700 1 , 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 , - 1 ,
701 1 , 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 , - 1 ,
702 1 , 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 , - 1 ,
703 1 , 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 , - 1
705 static const int HighTone
[] = {
706 1 , 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 ,
707 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 ,
708 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 ,
709 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 ,
710 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 ,
711 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 , - 1 ,
714 int lowLen
= sizeof ( LowTone
) / sizeof ( int );
715 int highLen
= sizeof ( HighTone
) / sizeof ( int );
716 int convLen
= ( highLen
> lowLen
) ? highLen
: lowLen
; //if highlen > lowLen then highlen else lowlen
717 uint32_t hi
= 0 , lo
= 0 ;
720 int minMark
= 0 , maxMark
= 0 ;
722 for ( i
= 0 ; i
< GraphTraceLen
- convLen
; ++ i
) {
723 int lowSum
= 0 , highSum
= 0 ;
725 for ( j
= 0 ; j
< lowLen
; ++ j
) {
726 lowSum
+= LowTone
[ j
]* GraphBuffer
[ i
+ j
];
728 for ( j
= 0 ; j
< highLen
; ++ j
) {
729 highSum
+= HighTone
[ j
] * GraphBuffer
[ i
+ j
];
731 lowSum
= abs ( 100 * lowSum
/ lowLen
);
732 highSum
= abs ( 100 * highSum
/ highLen
);
733 GraphBuffer
[ i
] = ( highSum
<< 16 ) | lowSum
;
736 for ( i
= 0 ; i
< GraphTraceLen
- convLen
- 16 ; ++ i
) {
737 int lowTot
= 0 , highTot
= 0 ;
738 // 10 and 8 are f_s divided by f_l and f_h, rounded
739 for ( j
= 0 ; j
< 10 ; ++ j
) {
740 lowTot
+= ( GraphBuffer
[ i
+ j
] & 0xffff );
742 for ( j
= 0 ; j
< 8 ; j
++) {
743 highTot
+= ( GraphBuffer
[ i
+ j
] >> 16 );
745 GraphBuffer
[ i
] = lowTot
- highTot
;
746 if ( GraphBuffer
[ i
] > maxMark
) maxMark
= GraphBuffer
[ i
];
747 if ( GraphBuffer
[ i
] < minMark
) minMark
= GraphBuffer
[ i
];
750 GraphTraceLen
-= ( convLen
+ 16 );
751 RepaintGraphWindow ();
753 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
754 int max
= 0 , maxPos
= 0 ;
755 for ( i
= 0 ; i
< 6000 ; ++ i
) {
757 for ( j
= 0 ; j
< 3 * lowLen
; ++ j
) {
758 dec
-= GraphBuffer
[ i
+ j
];
760 for (; j
< 3 * ( lowLen
+ highLen
); ++ j
) {
761 dec
+= GraphBuffer
[ i
+ j
];
769 // place start of bit sync marker in graph
770 GraphBuffer
[ maxPos
] = maxMark
;
771 GraphBuffer
[ maxPos
+ 1 ] = minMark
;
775 // place end of bit sync marker in graph
776 GraphBuffer
[ maxPos
] = maxMark
;
777 GraphBuffer
[ maxPos
+ 1 ] = minMark
;
779 PrintAndLog ( "actual data bits start at sample %d" , maxPos
);
780 PrintAndLog ( "length %d/%d" , highLen
, lowLen
);
783 bits
[ sizeof ( bits
)- 1 ] = '\0' ;
785 // find bit pairs and manchester decode them
786 for ( i
= 0 ; i
< arraylen ( bits
) - 1 ; ++ i
) {
788 for ( j
= 0 ; j
< lowLen
; ++ j
) {
789 dec
-= GraphBuffer
[ maxPos
+ j
];
791 for (; j
< lowLen
+ highLen
; ++ j
) {
792 dec
+= GraphBuffer
[ maxPos
+ j
];
795 // place inter bit marker in graph
796 GraphBuffer
[ maxPos
] = maxMark
;
797 GraphBuffer
[ maxPos
+ 1 ] = minMark
;
799 // hi and lo form a 64 bit pair
800 hi
= ( hi
<< 1 ) | ( lo
>> 31 );
802 // store decoded bit as binary (in hi/lo) and text (in bits[])
810 PrintAndLog ( "bits: '%s'" , bits
);
811 PrintAndLog ( "hex: %08x %08x" , hi
, lo
);
815 int CmdGrid ( const char * Cmd
)
817 sscanf ( Cmd
, "%i %i" , & PlotGridX
, & PlotGridY
);
818 PlotGridXdefault
= PlotGridX
;
819 PlotGridYdefault
= PlotGridY
;
820 RepaintGraphWindow ();
824 int CmdHexsamples ( const char * Cmd
)
830 char * string_ptr
= string_buf
;
833 sscanf ( Cmd
, "%i %i" , & requested
, & offset
);
835 /* if no args send something */
836 if ( requested
== 0 ) {
839 if ( offset
+ requested
> sizeof ( got
)) {
840 PrintAndLog ( "Tried to read past end of buffer, <bytes> + <offset> > 40000" );
844 GetFromBigBuf ( got
, requested
, offset
);
845 WaitForResponse ( CMD_ACK
, NULL
);
848 for ( j
= 0 ; j
< requested
; j
++) {
850 string_ptr
+= sprintf ( string_ptr
, "%02x " , got
[ j
]);
852 *( string_ptr
- 1 ) = '\0' ; // remove the trailing space
853 PrintAndLog ( "%s" , string_buf
);
854 string_buf
[ 0 ] = '\0' ;
855 string_ptr
= string_buf
;
858 if ( j
== requested
- 1 && string_buf
[ 0 ] != '\0' ) { // print any remaining bytes
859 *( string_ptr
- 1 ) = '\0' ;
860 PrintAndLog ( "%s" , string_buf
);
861 string_buf
[ 0 ] = '\0' ;
867 int CmdHide ( const char * Cmd
)
873 int CmdHpf ( const char * Cmd
)
878 for ( i
= 10 ; i
< GraphTraceLen
; ++ i
)
879 accum
+= GraphBuffer
[ i
];
880 accum
/= ( GraphTraceLen
- 10 );
881 for ( i
= 0 ; i
< GraphTraceLen
; ++ i
)
882 GraphBuffer
[ i
] -= accum
;
884 RepaintGraphWindow ();
888 int CmdSamples ( const char * Cmd
)
894 n
= strtol ( Cmd
, NULL
, 0 );
895 if ( n
== 0 ) n
= 6000 ;
896 if ( n
> sizeof ( got
)) n
= sizeof ( got
);
898 PrintAndLog ( "Reading %d samples \n " , n
);
899 GetFromBigBuf ( got
, n
, 0 );
900 WaitForResponse ( CMD_ACK
, NULL
);
901 for ( int j
= 0 ; j
< n
; j
++) {
902 GraphBuffer
[ cnt
++] = (( int ) got
[ j
]) - 128 ;
905 PrintAndLog ( "Done! \n " );
907 RepaintGraphWindow ();
911 int CmdTuneSamples ( const char * Cmd
)
917 PrintAndLog ( "Reading %d samples \n " , n
);
918 GetFromBigBuf ( got
, n
, 7256 ); // armsrc/apps.h: #define FREE_BUFFER_OFFSET 7256
919 WaitForResponse ( CMD_ACK
, NULL
);
920 for ( int j
= 0 ; j
< n
; j
++) {
921 GraphBuffer
[ cnt
++] = (( int ) got
[ j
]) - 128 ;
924 PrintAndLog ( "Done! Divisor 89 is 134khz, 95 is 125khz. \n " );
927 RepaintGraphWindow ();
931 int CmdLoad ( const char * Cmd
)
933 FILE * f
= fopen ( Cmd
, "r" );
935 PrintAndLog ( "couldn't open '%s'" , Cmd
);
941 while ( fgets ( line
, sizeof ( line
), f
)) {
942 GraphBuffer
[ GraphTraceLen
] = atoi ( line
);
946 PrintAndLog ( "loaded %d samples" , GraphTraceLen
);
947 RepaintGraphWindow ();
951 int CmdLtrim ( const char * Cmd
)
955 for ( int i
= ds
; i
< GraphTraceLen
; ++ i
)
956 GraphBuffer
[ i
- ds
] = GraphBuffer
[ i
];
959 RepaintGraphWindow ();
964 * Manchester demodulate a bitstream. The bitstream needs to be already in
965 * the GraphBuffer as 0 and 1 values
967 * Give the clock rate as argument in order to help the sync - the algorithm
968 * resyncs at each pulse anyway.
970 * Not optimized by any means, this is the 1st time I'm writing this type of
971 * routine, feel free to improve...
973 * 1st argument: clock rate (as number of samples per clock rate)
974 * Typical values can be 64, 32, 128...
976 int CmdManchesterDemod ( const char * Cmd
)
984 int hithigh
, hitlow
, first
;
990 /* check if we're inverting output */
993 PrintAndLog ( "Inverting output" );
998 while (* Cmd
== ' ' ); // in case a 2nd argument was given
1001 /* Holds the decoded bitstream: each clock period contains 2 bits */
1002 /* later simplified to 1 bit after manchester decoding. */
1003 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
1004 /* int BitStream[GraphTraceLen*2/clock+10]; */
1006 /* But it does not work if compiling on WIndows: therefore we just allocate a */
1008 uint8_t BitStream
[ MAX_GRAPH_TRACE_LEN
] = { 0 };
1010 /* Detect high and lows */
1011 for ( i
= 0 ; i
< GraphTraceLen
; i
++)
1013 if ( GraphBuffer
[ i
] > high
)
1014 high
= GraphBuffer
[ i
];
1015 else if ( GraphBuffer
[ i
] < low
)
1016 low
= GraphBuffer
[ i
];
1020 clock
= GetClock ( Cmd
, high
, 1 );
1022 int tolerance
= clock
/ 4 ;
1024 /* Detect first transition */
1025 /* Lo-Hi (arbitrary) */
1026 /* skip to the first high */
1027 for ( i
= 0 ; i
< GraphTraceLen
; i
++)
1028 if ( GraphBuffer
[ i
] == high
)
1030 /* now look for the first low */
1031 for (; i
< GraphTraceLen
; i
++)
1033 if ( GraphBuffer
[ i
] == low
)
1040 /* If we're not working with 1/0s, demod based off clock */
1043 bit
= 0 ; /* We assume the 1st bit is zero, it may not be
1044 * the case: this routine (I think) has an init problem.
1047 for (; i
< ( int )( GraphTraceLen
/ clock
); i
++)
1053 /* Find out if we hit both high and low peaks */
1054 for ( j
= 0 ; j
< clock
; j
++)
1056 if ( GraphBuffer
[( i
* clock
) + j
] == high
)
1058 else if ( GraphBuffer
[( i
* clock
) + j
] == low
)
1061 /* it doesn't count if it's the first part of our read
1062 because it's really just trailing from the last sequence */
1063 if ( first
&& ( hithigh
|| hitlow
))
1064 hithigh
= hitlow
= 0 ;
1068 if ( hithigh
&& hitlow
)
1072 /* If we didn't hit both high and low peaks, we had a bit transition */
1073 if (! hithigh
|| ! hitlow
)
1076 BitStream
[ bit2idx
++] = bit
^ invert
;
1080 /* standard 1/0 bitstream */
1084 /* Then detect duration between 2 successive transitions */
1085 for ( bitidx
= 1 ; i
< GraphTraceLen
; i
++)
1087 if ( GraphBuffer
[ i
- 1 ] != GraphBuffer
[ i
])
1092 // Error check: if bitidx becomes too large, we do not
1093 // have a Manchester encoded bitstream or the clock is really
1095 if ( bitidx
> ( GraphTraceLen
* 2 / clock
+ 8 ) ) {
1096 PrintAndLog ( "Error: the clock you gave is probably wrong, aborting." );
1099 // Then switch depending on lc length:
1100 // Tolerance is 1/4 of clock rate (arbitrary)
1101 if ( abs ( lc
- clock
/ 2 ) < tolerance
) {
1102 // Short pulse : either "1" or "0"
1103 BitStream
[ bitidx
++]= GraphBuffer
[ i
- 1 ];
1104 } else if ( abs ( lc
- clock
) < tolerance
) {
1105 // Long pulse: either "11" or "00"
1106 BitStream
[ bitidx
++]= GraphBuffer
[ i
- 1 ];
1107 BitStream
[ bitidx
++]= GraphBuffer
[ i
- 1 ];
1111 PrintAndLog ( "Warning: Manchester decode error for pulse width detection." );
1112 PrintAndLog ( "(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)" );
1116 PrintAndLog ( "Error: too many detection errors, aborting." );
1123 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
1124 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
1125 // to stop output at the final bitidx2 value, not bitidx
1126 for ( i
= 0 ; i
< bitidx
; i
+= 2 ) {
1127 if (( BitStream
[ i
] == 0 ) && ( BitStream
[ i
+ 1 ] == 1 )) {
1128 BitStream
[ bit2idx
++] = 1 ^ invert
;
1129 } else if (( BitStream
[ i
] == 1 ) && ( BitStream
[ i
+ 1 ] == 0 )) {
1130 BitStream
[ bit2idx
++] = 0 ^ invert
;
1132 // We cannot end up in this state, this means we are unsynchronized,
1136 PrintAndLog ( "Unsynchronized, resync..." );
1137 PrintAndLog ( "(too many of those messages mean the stream is not Manchester encoded)" );
1141 PrintAndLog ( "Error: too many decode errors, aborting." );
1148 PrintAndLog ( "Manchester decoded bitstream" );
1149 // Now output the bitstream to the scrollback by line of 16 bits
1150 for ( i
= 0 ; i
< ( bit2idx
- 16 ); i
+= 16 ) {
1151 PrintAndLog ( "%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i" ,
1172 /* Modulate our data into manchester */
1173 int CmdManchesterMod ( const char * Cmd
)
1177 int bit
, lastbit
, wave
;
1180 clock
= GetClock ( Cmd
, 0 , 1 );
1184 for ( i
= 0 ; i
< ( int )( GraphTraceLen
/ clock
); i
++)
1186 bit
= GraphBuffer
[ i
* clock
] ^ 1 ;
1188 for ( j
= 0 ; j
< ( int )( clock
/ 2 ); j
++)
1189 GraphBuffer
[( i
* clock
) + j
] = bit
^ lastbit
^ wave
;
1190 for ( j
= ( int )( clock
/ 2 ); j
< clock
; j
++)
1191 GraphBuffer
[( i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1 ;
1193 /* Keep track of how we start our wave and if we changed or not this time */
1194 wave
^= bit
^ lastbit
;
1198 RepaintGraphWindow ();
1202 int CmdNorm ( const char * Cmd
)
1205 int max
= INT_MIN
, min
= INT_MAX
;
1207 for ( i
= 10 ; i
< GraphTraceLen
; ++ i
) {
1208 if ( GraphBuffer
[ i
] > max
)
1209 max
= GraphBuffer
[ i
];
1210 if ( GraphBuffer
[ i
] < min
)
1211 min
= GraphBuffer
[ i
];
1215 for ( i
= 0 ; i
< GraphTraceLen
; ++ i
) {
1216 GraphBuffer
[ i
] = ( GraphBuffer
[ i
] - (( max
+ min
) / 2 )) * 1000 /
1220 RepaintGraphWindow ();
1224 int CmdPlot ( const char * Cmd
)
1230 int CmdSave ( const char * Cmd
)
1232 FILE * f
= fopen ( Cmd
, "w" );
1234 PrintAndLog ( "couldn't open '%s'" , Cmd
);
1238 for ( i
= 0 ; i
< GraphTraceLen
; i
++) {
1239 fprintf ( f
, "%d \n " , GraphBuffer
[ i
]);
1242 PrintAndLog ( "saved to '%s'" , Cmd
);
1246 int CmdScale ( const char * Cmd
)
1248 CursorScaleFactor
= atoi ( Cmd
);
1249 if ( CursorScaleFactor
== 0 ) {
1250 PrintAndLog ( "bad, can't have zero scale" );
1251 CursorScaleFactor
= 1 ;
1253 RepaintGraphWindow ();
1257 int CmdThreshold ( const char * Cmd
)
1259 int threshold
= atoi ( Cmd
);
1261 for ( int i
= 0 ; i
< GraphTraceLen
; ++ i
) {
1262 if ( GraphBuffer
[ i
] >= threshold
)
1265 GraphBuffer
[ i
] = - 1 ;
1267 RepaintGraphWindow ();
1271 int CmdDirectionalThreshold ( const char * Cmd
)
1273 int8_t upThres
= param_get8 ( Cmd
, 0 );
1274 int8_t downThres
= param_get8 ( Cmd
, 1 );
1276 printf ( "Applying Up Threshold: %d, Down Threshold: %d \n " , upThres
, downThres
);
1278 int lastValue
= GraphBuffer
[ 0 ];
1279 GraphBuffer
[ 0 ] = 0 ; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
1281 for ( int i
= 1 ; i
< GraphTraceLen
; ++ i
) {
1282 // Apply first threshold to samples heading up
1283 if ( GraphBuffer
[ i
] >= upThres
&& GraphBuffer
[ i
] > lastValue
)
1285 lastValue
= GraphBuffer
[ i
]; // Buffer last value as we overwrite it.
1288 // Apply second threshold to samples heading down
1289 else if ( GraphBuffer
[ i
] <= downThres
&& GraphBuffer
[ i
] < lastValue
)
1291 lastValue
= GraphBuffer
[ i
]; // Buffer last value as we overwrite it.
1292 GraphBuffer
[ i
] = - 1 ;
1296 lastValue
= GraphBuffer
[ i
]; // Buffer last value as we overwrite it.
1297 GraphBuffer
[ i
] = GraphBuffer
[ i
- 1 ];
1301 GraphBuffer
[ 0 ] = GraphBuffer
[ 1 ]; // Aline with first edited sample.
1302 RepaintGraphWindow ();
1306 int CmdZerocrossings ( const char * Cmd
)
1308 // Zero-crossings aren't meaningful unless the signal is zero-mean.
1315 for ( int i
= 0 ; i
< GraphTraceLen
; ++ i
) {
1316 if ( GraphBuffer
[ i
] * sign
>= 0 ) {
1317 // No change in sign, reproduce the previous sample count.
1319 GraphBuffer
[ i
] = lastZc
;
1321 // Change in sign, reset the sample count.
1323 GraphBuffer
[ i
] = lastZc
;
1331 RepaintGraphWindow ();
1335 static command_t CommandTable
[] =
1337 { "help" , CmdHelp
, 1 , "This help" },
1338 { "amp" , CmdAmp
, 1 , "Amplify peaks" },
1339 { "askdemod" , Cmdaskdemod
, 1 , "<0 or 1> -- Attempt to demodulate simple ASK tags" },
1340 { "askmandemod" , Cmdaskmandemod
, 1 , "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])" },
1341 { "askrawdemod" , Cmdaskrawdemod
, 1 , "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])" },
1342 { "autocorr" , CmdAutoCorr
, 1 , "<window length> -- Autocorrelation over window" },
1343 { "biphaserawdecode" , CmdBiphaseDecodeRaw
, 1 , "[offset] Biphase decode binary stream already in graph buffer (offset = bit to start decode from)" },
1344 { "bitsamples" , CmdBitsamples
, 0 , "Get raw samples as bitstring" },
1345 { "bitstream" , CmdBitstream
, 1 , "[clock rate] -- Convert waveform into a bitstream" },
1346 { "buffclear" , CmdBuffClear
, 1 , "Clear sample buffer and graph window" },
1347 { "dec" , CmdDec
, 1 , "Decimate samples" },
1348 { "detectaskclock" , CmdDetectClockRate
, 1 , "Detect ASK clock rate" },
1349 { "fskdemod" , CmdFSKdemod
, 1 , "Demodulate graph window as a HID FSK" },
1350 { "fskhiddemod" , CmdFSKdemodHID
, 1 , "Demodulate graph window as a HID FSK using raw" },
1351 { "fskiodemod" , CmdFSKdemodIO
, 1 , "Demodulate graph window as an IO Prox FSK using raw" },
1352 { "fskrawdemod" , CmdFSKrawdemod
, 1 , "[clock rate] [invert] Demodulate graph window from FSK to binary (clock = 64 or 50)(invert = 1 or 0)" },
1353 { "grid" , CmdGrid
, 1 , "<x> <y> -- overlay grid on graph window, use zero value to turn off either" },
1354 { "hexsamples" , CmdHexsamples
, 0 , "<bytes> [<offset>] -- Dump big buffer as hex bytes" },
1355 { "hide" , CmdHide
, 1 , "Hide graph window" },
1356 { "hpf" , CmdHpf
, 1 , "Remove DC offset from trace" },
1357 { "load" , CmdLoad
, 1 , "<filename> -- Load trace (to graph window" },
1358 { "ltrim" , CmdLtrim
, 1 , "<samples> -- Trim samples from left of trace" },
1359 { "mandemod" , CmdManchesterDemod
, 1 , "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)" },
1360 { "manrawdecode" , Cmdmandecoderaw
, 1 , "Manchester decode binary stream already in graph buffer" },
1361 { "manmod" , CmdManchesterMod
, 1 , "[clock rate] -- Manchester modulate a binary stream" },
1362 { "norm" , CmdNorm
, 1 , "Normalize max/min to +/-500" },
1363 { "plot" , CmdPlot
, 1 , "Show graph window (hit 'h' in window for keystroke help)" },
1364 { "samples" , CmdSamples
, 0 , "[512 - 40000] -- Get raw samples for graph window" },
1365 { "tune" , CmdTuneSamples
, 0 , "Get hw tune samples for graph window" },
1366 { "save" , CmdSave
, 1 , "<filename> -- Save trace (from graph window)" },
1367 { "scale" , CmdScale
, 1 , "<int> -- Set cursor display scale" },
1368 { "threshold" , CmdThreshold
, 1 , "<threshold> -- Maximize/minimize every value in the graph window depending on threshold" },
1369 { "zerocrossings" , CmdZerocrossings
, 1 , "Count time between zero-crossings" },
1370 { "dirthreshold" , CmdDirectionalThreshold
, 1 , "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev." },
1371 { NULL
, NULL
, 0 , NULL
}
1374 int CmdData ( const char * Cmd
)
1376 CmdsParse ( CommandTable
, Cmd
);
1380 int CmdHelp ( const char * Cmd
)
1382 CmdsHelp ( CommandTable
);