-// mifare 4bit card answers\r
-#define CARD_ACK 0x0A // 1010 - ACK\r
-#define CARD_NACK_NA 0x04 // 0100 - NACK, not allowed (command not allowed)\r
-#define CARD_NACK_TR 0x05 // 0101 - NACK, transmission error\r
-\r
-// reader voltage field detector\r
-#define MF_MINFIELDV 4000\r
-\r
-// debug\r
-// 0 - no debug messages 1 - error messages 2 - all messages 4 - extended debug mode\r
-#define MF_DBG_NONE 0\r
-#define MF_DBG_ERROR 1\r
-#define MF_DBG_ALL 2\r
-#define MF_DBG_EXTENDED 4\r
-\r
-extern int MF_DBGLEVEL;\r
-\r