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Merge pull request #91 from marshmellow42/master
lfdemod.c refactoring (+ bug fixes)
This commit is contained in:
Martin Holst Swende
commit
d5d6f22718
6 changed files with 457 additions and 684 deletions
149
armsrc/lfops.c
149
armsrc/lfops.c
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@ -755,8 +755,8 @@ void CmdPSKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
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void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
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{
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uint8_t *dest = BigBuf_get_addr();
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const size_t sizeOfBigBuff = BigBuf_max_traceLen();
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size_t size = 0;
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//const size_t sizeOfBigBuff = BigBuf_max_traceLen();
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size_t size;
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uint32_t hi2=0, hi=0, lo=0;
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int idx=0;
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// Configure to go in 125Khz listen mode
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@ -769,16 +769,16 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
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DoAcquisition_default(-1,true);
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// FSK demodulator
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size = sizeOfBigBuff; //variable size will change after demod so re initialize it before use
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//size = sizeOfBigBuff; //variable size will change after demod so re initialize it before use
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size = 50*128*2; //big enough to catch 2 sequences of largest format
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idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo);
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if (idx>0 && lo>0){
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// final loop, go over previously decoded manchester data and decode into usable tag ID
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// 111000 bit pattern represent start of frame, 01 pattern represents a 1 and 10 represents a 0
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if (hi2 != 0){ //extra large HID tags
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if (idx>0 && lo>0 && (size==96 || size==192)){
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// go over previously decoded manchester data and decode into usable tag ID
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if (hi2 != 0){ //extra large HID tags 88/192 bits
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Dbprintf("TAG ID: %x%08x%08x (%d)",
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(unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
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}else { //standard HID tags <38 bits
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}else { //standard HID tags 44/96 bits
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//Dbprintf("TAG ID: %x%08x (%d)",(unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); //old print cmd
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uint8_t bitlen = 0;
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uint32_t fc = 0;
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@ -833,8 +833,8 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
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return;
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}
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// reset
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hi2 = hi = lo = 0;
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}
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hi2 = hi = lo = idx = 0;
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WDT_HIT();
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}
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DbpString("Stopped");
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@ -859,49 +859,42 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
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DoAcquisition_default(-1,true);
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size = BigBuf_max_traceLen();
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//Dbprintf("DEBUG: Buffer got");
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//askdemod and manchester decode
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if (size > 16385) size = 16385; //big enough to catch 2 sequences of largest format
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errCnt = askmandemod(dest, &size, &clk, &invert, maxErr);
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//Dbprintf("DEBUG: ASK Got");
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WDT_HIT();
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if (errCnt>=0){
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errCnt = Em410xDecode(dest, &size, &idx, &hi, &lo);
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//Dbprintf("DEBUG: EM GOT");
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if (errCnt){
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if (size>64){
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Dbprintf("EM XL TAG ID: %06x%08x%08x - (%05d_%03d_%08d)",
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hi,
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(uint32_t)(lo>>32),
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(uint32_t)lo,
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(uint32_t)(lo&0xFFFF),
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(uint32_t)((lo>>16LL) & 0xFF),
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(uint32_t)(lo & 0xFFFFFF));
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} else {
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Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",
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(uint32_t)(lo>>32),
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(uint32_t)lo,
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(uint32_t)(lo&0xFFFF),
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(uint32_t)((lo>>16LL) & 0xFF),
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(uint32_t)(lo & 0xFFFFFF));
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}
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if (errCnt<0) continue;
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errCnt = Em410xDecode(dest, &size, &idx, &hi, &lo);
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if (errCnt){
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if (size>64){
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Dbprintf("EM XL TAG ID: %06x%08x%08x - (%05d_%03d_%08d)",
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hi,
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(uint32_t)(lo>>32),
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(uint32_t)lo,
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(uint32_t)(lo&0xFFFF),
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(uint32_t)((lo>>16LL) & 0xFF),
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(uint32_t)(lo & 0xFFFFFF));
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} else {
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Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",
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(uint32_t)(lo>>32),
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(uint32_t)lo,
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(uint32_t)(lo&0xFFFF),
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(uint32_t)((lo>>16LL) & 0xFF),
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(uint32_t)(lo & 0xFFFFFF));
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}
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if (findone){
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if (ledcontrol) LED_A_OFF();
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*high=lo>>32;
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*low=lo & 0xFFFFFFFF;
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return;
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}
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} else{
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//Dbprintf("DEBUG: No Tag");
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}
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WDT_HIT();
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hi = 0;
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lo = 0;
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clk=0;
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invert=0;
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errCnt=0;
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size=0;
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hi = lo = size = idx = 0;
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clk = invert = errCnt = 0;
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}
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DbpString("Stopped");
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if (ledcontrol) LED_A_OFF();
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@ -925,47 +918,47 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
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//fskdemod and get start index
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WDT_HIT();
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idx = IOdemodFSK(dest, BigBuf_max_traceLen());
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if (idx>0){
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//valid tag found
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if (idx<0) continue;
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//valid tag found
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//Index map
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//0 10 20 30 40 50 60
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//| | | | | | |
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//01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
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//-----------------------------------------------------------------------------
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//00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
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//
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//XSF(version)facility:codeone+codetwo
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//Handle the data
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if(findone){ //only print binary if we are doing one
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx], dest[idx+1], dest[idx+2],dest[idx+3],dest[idx+4],dest[idx+5],dest[idx+6],dest[idx+7],dest[idx+8]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+9], dest[idx+10],dest[idx+11],dest[idx+12],dest[idx+13],dest[idx+14],dest[idx+15],dest[idx+16],dest[idx+17]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+18],dest[idx+19],dest[idx+20],dest[idx+21],dest[idx+22],dest[idx+23],dest[idx+24],dest[idx+25],dest[idx+26]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+27],dest[idx+28],dest[idx+29],dest[idx+30],dest[idx+31],dest[idx+32],dest[idx+33],dest[idx+34],dest[idx+35]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+36],dest[idx+37],dest[idx+38],dest[idx+39],dest[idx+40],dest[idx+41],dest[idx+42],dest[idx+43],dest[idx+44]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+45],dest[idx+46],dest[idx+47],dest[idx+48],dest[idx+49],dest[idx+50],dest[idx+51],dest[idx+52],dest[idx+53]);
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Dbprintf("%d%d%d%d%d%d%d%d %d%d",dest[idx+54],dest[idx+55],dest[idx+56],dest[idx+57],dest[idx+58],dest[idx+59],dest[idx+60],dest[idx+61],dest[idx+62],dest[idx+63]);
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}
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code = bytebits_to_byte(dest+idx,32);
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code2 = bytebits_to_byte(dest+idx+32,32);
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version = bytebits_to_byte(dest+idx+27,8); //14,4
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facilitycode = bytebits_to_byte(dest+idx+18,8) ;
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number = (bytebits_to_byte(dest+idx+36,8)<<8)|(bytebits_to_byte(dest+idx+45,8)); //36,9
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Dbprintf("XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
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// if we're only looking for one tag
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if (findone){
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if (ledcontrol) LED_A_OFF();
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//LED_A_OFF();
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*high=code;
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*low=code2;
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return;
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}
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code=code2=0;
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version=facilitycode=0;
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number=0;
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idx=0;
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//Index map
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//0 10 20 30 40 50 60
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//| | | | | | |
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//01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
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//-----------------------------------------------------------------------------
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//00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
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//
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//XSF(version)facility:codeone+codetwo
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//Handle the data
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if(findone){ //only print binary if we are doing one
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx], dest[idx+1], dest[idx+2],dest[idx+3],dest[idx+4],dest[idx+5],dest[idx+6],dest[idx+7],dest[idx+8]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+9], dest[idx+10],dest[idx+11],dest[idx+12],dest[idx+13],dest[idx+14],dest[idx+15],dest[idx+16],dest[idx+17]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+18],dest[idx+19],dest[idx+20],dest[idx+21],dest[idx+22],dest[idx+23],dest[idx+24],dest[idx+25],dest[idx+26]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+27],dest[idx+28],dest[idx+29],dest[idx+30],dest[idx+31],dest[idx+32],dest[idx+33],dest[idx+34],dest[idx+35]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+36],dest[idx+37],dest[idx+38],dest[idx+39],dest[idx+40],dest[idx+41],dest[idx+42],dest[idx+43],dest[idx+44]);
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Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+45],dest[idx+46],dest[idx+47],dest[idx+48],dest[idx+49],dest[idx+50],dest[idx+51],dest[idx+52],dest[idx+53]);
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Dbprintf("%d%d%d%d%d%d%d%d %d%d",dest[idx+54],dest[idx+55],dest[idx+56],dest[idx+57],dest[idx+58],dest[idx+59],dest[idx+60],dest[idx+61],dest[idx+62],dest[idx+63]);
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}
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code = bytebits_to_byte(dest+idx,32);
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code2 = bytebits_to_byte(dest+idx+32,32);
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version = bytebits_to_byte(dest+idx+27,8); //14,4
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facilitycode = bytebits_to_byte(dest+idx+18,8);
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number = (bytebits_to_byte(dest+idx+36,8)<<8)|(bytebits_to_byte(dest+idx+45,8)); //36,9
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Dbprintf("XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
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// if we're only looking for one tag
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if (findone){
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if (ledcontrol) LED_A_OFF();
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//LED_A_OFF();
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*high=code;
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*low=code2;
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return;
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}
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code=code2=0;
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version=facilitycode=0;
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number=0;
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idx=0;
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WDT_HIT();
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}
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DbpString("Stopped");
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@ -414,7 +414,10 @@ int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch)
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int invert=0;
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int clk=0;
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int maxErr=100;
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//param_getdec(Cmd, 0, &clk);
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//param_getdec(Cmd, 1, &invert);
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//maxErr = param_get32ex(Cmd, 2, 0xFFFFFFFF, 10);
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//if (maxErr == 0xFFFFFFFF) maxErr=100;
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uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
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sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
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if (invert != 0 && invert != 1) {
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@ -675,7 +678,7 @@ int ASKbiphaseDemod(const char *Cmd, bool verbose)
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int offset=0, clk=0, invert=0, maxErr=0, ans=0;
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ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
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if (ans>0)
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ans = ASKrawDemod(Cmd+2, FALSE);
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ans = ASKrawDemod(Cmd+1, FALSE);
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else
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ans = ASKrawDemod(Cmd, FALSE);
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if (!ans) {
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@ -1146,7 +1149,7 @@ int FSKrawDemod(const char *Cmd, bool verbose)
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if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
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if (rfLen==1){
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invert=1; //if invert option only is used
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invert = 1; //if invert option only is used
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rfLen = 0;
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}
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}
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@ -1156,9 +1159,8 @@ int FSKrawDemod(const char *Cmd, bool verbose)
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if (BitLen==0) return 0;
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//get field clock lengths
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uint16_t fcs=0;
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uint8_t dummy=0;
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if (fchigh==0 || fclow == 0){
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fcs = countFC(BitStream, BitLen, &dummy);
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fcs = countFC(BitStream, BitLen, 1);
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if (fcs==0){
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fchigh=10;
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fclow=8;
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@ -1822,7 +1824,7 @@ int PSKDemod(const char *Cmd, bool verbose)
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uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
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size_t BitLen = getFromGraphBuf(BitStream);
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if (BitLen==0) return -1;
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uint8_t carrier=countPSK_FC(BitStream, BitLen);
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uint8_t carrier=countFC(BitStream, BitLen, 0);
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if (carrier!=2 && carrier!=4 && carrier!=8){
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//invalid carrier
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return 0;
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@ -1957,7 +1959,7 @@ int NRZrawDemod(const char *Cmd, bool verbose)
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if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
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return 0;
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}
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if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
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if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
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if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
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return 0;
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}
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@ -2083,19 +2085,19 @@ int CmdRawDemod(const char *Cmd)
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char cmdp2 = Cmd[1];
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int ans = 0;
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if (cmdp == 'f' && cmdp2 == 's'){
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ans = CmdFSKrawdemod(Cmd+3);
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ans = CmdFSKrawdemod(Cmd+2);
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} else if(cmdp == 'a' && cmdp2 == 'b'){
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ans = Cmdaskbiphdemod(Cmd+3);
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ans = Cmdaskbiphdemod(Cmd+2);
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} else if(cmdp == 'a' && cmdp2 == 'm'){
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ans = Cmdaskmandemod(Cmd+3);
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ans = Cmdaskmandemod(Cmd+2);
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} else if(cmdp == 'a' && cmdp2 == 'r'){
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ans = Cmdaskrawdemod(Cmd+3);
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ans = Cmdaskrawdemod(Cmd+2);
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} else if(cmdp == 'n' && cmdp2 == 'r'){
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ans = CmdNRZrawDemod(Cmd+3);
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ans = CmdNRZrawDemod(Cmd+2);
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} else if(cmdp == 'p' && cmdp2 == '1'){
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ans = CmdPSK1rawDemod(Cmd+3);
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ans = CmdPSK1rawDemod(Cmd+2);
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} else if(cmdp == 'p' && cmdp2 == '2'){
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ans = CmdPSK2rawDemod(Cmd+3);
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ans = CmdPSK2rawDemod(Cmd+2);
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} else {
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PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
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}
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@ -752,12 +752,10 @@ int CmdT55xxReadTrace(const char *Cmd)
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uint32_t icr = PackBits(si, 3, DemodBuffer); si += 3;
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uint32_t year = PackBits(si, 4, DemodBuffer); si += 4;
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uint32_t quarter = PackBits(si, 2, DemodBuffer); si += 2;
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uint32_t lotid = PackBits(si, 12, DemodBuffer); si += 12;
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uint32_t lotid = PackBits(si, 14, DemodBuffer); si += 14;
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uint32_t wafer = PackBits(si, 5, DemodBuffer); si += 5;
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uint32_t dw = PackBits(si, 15, DemodBuffer);
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year += 2000;
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PrintAndLog("");
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PrintAndLog("-- T55xx Trace Information ----------------------------------");
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PrintAndLog("-------------------------------------------------------------");
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@ -766,7 +764,7 @@ int CmdT55xxReadTrace(const char *Cmd)
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PrintAndLog(" CID : 0x%02X (%d) - %s", cid, cid, GetModelStrFromCID(cid));
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PrintAndLog(" ICR IC Revision : %d",icr );
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PrintAndLog(" Manufactured");
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PrintAndLog(" Year/Quarter : %d/%d",year, quarter );
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PrintAndLog(" Year/Quarter : 20?%d/%d",year, quarter);
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PrintAndLog(" Lot ID : %d", lotid );
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PrintAndLog(" Wafer number : %d", wafer);
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PrintAndLog(" Die Number : %d", dw);
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@ -146,7 +146,7 @@ uint8_t GetPskCarrier(const char str[], bool printAns, bool verbose)
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}
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//uint8_t countPSK_FC(uint8_t *BitStream, size_t size)
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carrier = countPSK_FC(grph,size);
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carrier = countFC(grph,size,0);
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// Only print this message if we're not looping something
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if (printAns){
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PrintAndLog("Auto-detected PSK carrier rate: %d", carrier);
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@ -232,8 +232,7 @@ uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose)
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uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
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size_t size = getFromGraphBuf(BitStream);
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if (size==0) return 0;
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uint8_t dummy = 0;
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uint16_t ans = countFC(BitStream, size, &dummy);
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uint16_t ans = countFC(BitStream, size, 1);
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if (ans==0) {
|
||||
if (verbose) PrintAndLog("DEBUG: No data found");
|
||||
return 0;
|
||||
|
|
|
|||
944
common/lfdemod.c
944
common/lfdemod.c
File diff suppressed because it is too large
Load diff
|
|
@ -19,7 +19,6 @@ int DetectASKClock(uint8_t dest[], size_t size, int *clock, int maxErr);
|
|||
uint8_t DetectCleanAskWave(uint8_t dest[], size_t size, int high, int low);
|
||||
int askmandemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr);
|
||||
uint8_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo);
|
||||
//uint64_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx);
|
||||
int ManchesterEncode(uint8_t *BitStream, size_t size);
|
||||
int manrawdecode(uint8_t *BitStream, size_t *size);
|
||||
int BiphaseRawDecode(uint8_t * BitStream, size_t *size, int offset, int invert);
|
||||
|
|
@ -34,20 +33,16 @@ void psk1TOpsk2(uint8_t *BitStream, size_t size);
|
|||
void psk2TOpsk1(uint8_t *BitStream, size_t size);
|
||||
int DetectNRZClock(uint8_t dest[], size_t size, int clock);
|
||||
int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
|
||||
void pskCleanWave(uint8_t *bitStream, size_t size);
|
||||
int PyramiddemodFSK(uint8_t *dest, size_t *size);
|
||||
int AWIDdemodFSK(uint8_t *dest, size_t *size);
|
||||
size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen);
|
||||
uint16_t countFC(uint8_t *BitStream, size_t size, uint8_t *mostFC);
|
||||
uint16_t countFC(uint8_t *BitStream, size_t size, uint8_t fskAdj);
|
||||
uint8_t detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow);
|
||||
int getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo);
|
||||
int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
|
||||
uint8_t preambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx);
|
||||
uint8_t parityTest(uint32_t bits, uint8_t bitLen, uint8_t pType);
|
||||
uint8_t justNoise(uint8_t *BitStream, size_t size);
|
||||
uint8_t countPSK_FC(uint8_t *BitStream, size_t size);
|
||||
int pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert);
|
||||
int DetectPSKClock(uint8_t dest[], size_t size, int clock);
|
||||
void askAmp(uint8_t *BitStream, size_t size);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue