return 1;
}
-// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
-// 8 databits + 1 parity (1)
-// CIITT 16 chksum
-// NATIONAL CODE, ICAR database
-// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
-// FLAG (animal/non-animal)
-/*
-38 IDbits
-10 country code
-1 extra app bit
-14 reserved bits
-1 animal bit
-16 ccitt CRC chksum over 64bit ID CODE.
-24 appli bits.
-
--- sample: 985121004515220 [ 37FF65B88EF94 ]
-*/
-int CmdFDXBdemodBI(const char *Cmd){
-
- int invert = 1;
- int clk = 32;
- int errCnt = 0;
- int maxErr = 0;
- uint8_t BitStream[MAX_DEMOD_BUF_LEN];
- size_t size = getFromGraphBuf(BitStream);
-
- errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
- if ( errCnt < 0 || errCnt > maxErr ) {
- if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
- return 0;
- }
-
- errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
- if (errCnt < 0 || errCnt > maxErr ) {
- if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
- return 0;
- }
-
- int preambleIndex = FDXBdemodBI(BitStream, &size);
- if (preambleIndex < 0){
- if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex);
- return 0;
- }
- if (size != 128) {
- if (g_debugMode) PrintAndLog("Error incorrect data length found");
- return 0;
- }
-
- setDemodBuf(BitStream, 128, preambleIndex);
-
- // remove marker bits (1's every 9th digit after preamble) (pType = 2)
- size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
- if ( size != 104 ) {
- if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
- return 0;
- }
- if (g_debugMode) {
- char *bin = sprint_bin_break(BitStream,size,16);
- PrintAndLog("DEBUG BinStream:\n%s",bin);
- }
- PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
- if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
-
- //got a good demod
- uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
- uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
- uint8_t dataBlockBit = BitStream[48];
- uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
- uint8_t animalBit = BitStream[63];
- uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
- uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
-
- uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
- uint8_t raw[8];
- num_to_bytes(rawid, 8, raw);
-
- if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
-
- uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
- PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
- PrintAndLog("National Code: %012" PRIu64, NationalCode);
- PrintAndLog("CountryCode: %04u", countryCode);
- PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False");
- PrintAndLog("reserved Code: %u", reservedCode);
- PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
- PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
- PrintAndLog("Extended: 0x%X\n", extended);
-
- return 1;
-}
-
-
//by marshmellow
//attempt to psk1 demod graph buffer
int PSKDemod(const char *Cmd, bool verbose)
{"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
{"dec", CmdDec, 1, "Decimate samples"},
{"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
- {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
//{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
{"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
{"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},