How can i designed a FSM and conditional logic control in gnuradio?

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Hi, Today I worked on RFID articles, and I had some questions. It is possible to design an RFID reader for frequency 13.56 or 125khz with gnuradio?

I read the RFID standards According to RFID flowchart I need to design an FSM (Finite State Machine) for RFID Reader.

can anyone guide me? how can write and design a real-time RFID in gnuradio?

thanks in advance