extern byte_t oddparity (const byte_t bt);
extern uint32_t GetParity(const uint8_t * pbtCmd, int iLen);
extern void AppendCrc14443a(uint8_t* data, int len);
extern byte_t oddparity (const byte_t bt);
extern uint32_t GetParity(const uint8_t * pbtCmd, int iLen);
extern void AppendCrc14443a(uint8_t* data, int len);
extern int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr);
extern void iso14443a_setup();
extern int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr);
extern void iso14443a_setup();
extern int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, uint32_t * cuid_ptr);
extern void iso14a_set_trigger(int enable);
extern int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, uint32_t * cuid_ptr);
extern void iso14a_set_trigger(int enable);