Topic: nfc_target_init() problem


I'm using pn532 on raspberry pi.
when i use nfc_target_init and i touch with my phone (with nfc communications on), nothing happens, i mean, the phone makes a "beep" and that means it found a tag. But nothing else happens. The code(in C) is "stcuck"  in nfc_target_init() function.

Someone could help me?