CC2540 配对密码问题

请各位指点一下，

在simpleBLEPeripheral.c里，有如下设置

uint32 passkey = 655355; // passkey "000000"   

uint8 pairMode = GAPBOND_PAIRING_MODE_WAIT_FOR_REQ ;    

 uint8 mitm =TRUE;    

 uint8 ioCap = GAPBOND_IO_CAP_KEYBOARD_DISPLAY  ;    

uint8 bonding = TRUE;       

GAPBondMgr_SetParameter( GAPBOND_DEFAULT_PASSCODE, sizeof ( uint32 ), &passkey );    

GAPBondMgr_SetParameter( GAPBOND_PAIRING_MODE, sizeof ( uint8 ), &pairMode );    

 GAPBondMgr_SetParameter( GAPBOND_MITM_PROTECTION, sizeof ( uint8 ), &mitm );    

GAPBondMgr_SetParameter( GAPBOND_IO_CAPABILITIES, sizeof ( uint8 ), &ioCap );    

GAPBondMgr_SetParameter( GAPBOND_BONDING_ENABLED, sizeof ( uint8 ), &bonding );

为什么我用LightBlue连设备的时候，还是不需要输入配对密码，直接就连上。是不是还要在什么地方作什么设置