| f641d8d9 |
1 | ------------------------------------------------------------------------------- |
| 2 | NFC ISO/IEC 15693 vicinity reader / tag capture with demodulation |
| 3 | ------------------------------------------------------------------------------- |
| 4 | |
| 5 | This is an example of an NFC ISO/IEC 15693 vicinity reader / tag capture |
| 6 | with demodulation. |
| 7 | |
| 8 | |
| 9 | Hardware setup for the capture |
| 10 | ------------------------------ |
| 11 | |
| 12 | * HydraBus v1.2 + HydraNFC Shield v1.1 |
| 13 | * Using firmware HydraFW (HydraBus) v0.9-beta-92-g3c34dfd 2019-10-12 |
| 14 | Tag ISO/IEC 15693 Vicinity ICODE SLI/SLIX (uID RW) |
| 15 | * CH1 connected to HydraBus/HydraNFC PA5 |
| 16 | * Capture HydraNFC reader clock 13.56MHz |
| 17 | * CH2 connected to “Calibration Coil ISO 10373-6” |
| 18 | * Capture NFC signal between NFC Reader & NFC Vicinity Tag |
| 19 | * Impedance Adapter 50 Ohm (also called Rigol Impedance Adjuster 50 Ohm) |
| 20 | used on CH2 with "Calibration Coil ISO 10373-6" |
| 21 | * PL-50 (50 Ohms +/-1%, 2 WATT, DC - 1GHz) |
| 22 | * PicoScope 3406DMSO (8bits @ 1 GS/s, Memory 512MS) |
| 23 | * Picoscope v6.x software on Windows 7 SP1 64bits |
| 24 | |
| 25 | NFC ISO/IEC 15693 Vicinity read UID capture was demodulated with an Octave |
| 26 | script which creates CH3 & CH4 and all channels are displayed with PulseView. |
| 27 | |
| 28 | |
| 29 | Capture details |
| 30 | --------------- |
| 31 | |
| 32 | CH1: connected to HydraBus/HydraNFC PA5 (capture HydraNFC reader Clock 13.56MHz) |
| 33 | CH2: connected to "Calibration Coil ISO 10373-6" (capture NFC signal between Reader & Tag) |
| 34 | CH3: clock reconstructed from CH1 / CH2 to decode CH4 |
| 35 | CH4: filtered data envelope reconstructed from from CH1 / CH2 |
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