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);