CC2541主从机配对问题

环境：

固件：SDK—1.41

IDE：IAR-9.2

芯片：CC2541

手机配对从机，如果密码错误则提示错误，正确则配对通过（正常）

主机配对从机，无论密码是否匹配都会配对成功，简直就是无视了密码的存在，有配对过程。（错误）

在配对过程中的每个步骤我都会用串口打印出来，虽然密码错误了，但是还是现实验证通过了。

尝试修改模式：

从：

    uint8 pairMode = GAPBOND_PAIRING_MODE_INITIATE;
    uint8 ioCap = GAPBOND_IO_CAP_DISPLAY_ONLY;
    uint8 bonding = TURE;
    uint8 mitm = 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 );   

主:

    uint8 pairMode = GAPBOND_PAIRING_MODE_WAIT_FOR_REQ;
    uint8 ioCap = GAPBOND_IO_CAP_DISPLAY_ONLY; uint8 bonding = TURE; 
    uint8 mitm = 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 ); 

尝试修改模式二：

从：

    uint8 pairMode = GAPBOND_PAIRING_MODE_WAIT_FOR_REQ; 
    uint8 ioCap = GAPBOND_IO_CAP_DISPLAY_ONLY; 
    uint8 bonding = TURE; uint8 mitm = 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 ); 

主:

    uint8 pairMode = GAPBOND_PAIRING_MODE_INITIATE;
    uint8 ioCap = GAPBOND_IO_CAP_DISPLAY_ONLY;
    uint8 bonding = TURE;
    uint8 mitm = 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 );   

尝试修改模式三：

从：

    uint8 pairMode = GAPBOND_PAIRING_MODE_INITIATE;
    uint8 ioCap = GAPBOND_IO_CAP_DISPLAY_ONLY;
    uint8 bonding = TURE;
    uint8 mitm = 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 );   

主:

    uint8 pairMode = GAPBOND_PAIRING_MODE_INITIATE;
    uint8 ioCap = GAPBOND_IO_CAP_DISPLAY_ONLY;
    uint8 bonding = TURE;
    uint8 mitm = 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 );   

结果：
无论那边发起配对请求，甚至是双方都发起，结果都是无视密码的存在，无论双方密码是否匹配，直接配对完成。手机就正常。
是否我哪里理解错了，还请大家帮帮忙。