Radio demodualtion and frame decoding for NFC-15693 rfid norm.
pynfc15693demod requires raw 32 bits float I/Q samples as input file, without any header.
Nominal sdr parameters:
- Sample frequency 2MHz
- center frequency 13.56MHz
Tested with a SDRplay sdr ireceiver at 2MHz sample frequeny and centered on 13.56MHz.
Only the VCD to VICC demodulation and frame decoding is functional. TODO: VICC to VCD answer demodulation and frame decoder.
VCD : Vicinity coupling device (eg a smartphone)
VICC: Vicinity integrated circuit card (eg nfc tag)