extern void ReaderTransmitPar(uint8_t* frame, int len, uint32_t par);
extern int ReaderReceive(uint8_t* receivedAnswer);
extern int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr);
extern void iso14443a_setup();
extern void ReaderTransmitPar(uint8_t* frame, int len, uint32_t par);
extern int ReaderReceive(uint8_t* receivedAnswer);
extern int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr);
extern void iso14443a_setup();