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CC2564: Passkey Generation

Manoj Chandran
Intellectual 260 points
Part Number: CC2564


Hi,

We are using Simple secure pairing in our design. The profile is SPP profile. For pairing we are generating a passkey and it will be displayed. The client has to type the passkey for pairing. The problem is, the passkey validity time is limited to some seconds. Is it possible to configure the stack to increase the passkey validity time. Also the current passkey is 6 digit. Is it possible to make it 8 digit?

Regards

Manoj 

  • 0
    TI__Mastermind 29311 points

    Manoj,

    The Bluetooth Core specification for Secure Simple Pairing defines the passkey being 6-digit numerical value.

    "For Secure Simple Pairing and Security Manager, the Bluetooth passkey is a 6-digit numerical value. It is represented as integer value in the range 0x00000000 – 0x000F423F (000000 to 999999)." Core spec v4.2 [Vol 3, Part C] section 3.2.3.3

    So, no you cannot have an 8-digit passkey.

    Best regards,

    Vihang

     

  • 0 in reply to Vihang Parmar
    Intellectual 260 points

    Hi Vihang,

    Thanks for the Immediate response. I have some more query regarding.

    1.  The passkey validity duration is limited.  Is there any setting by which we can increase/set the validity time of generated passkey?

    2. Is there any command by which we can know the Bluetooth version we are using ? (Bluetooth 4.0 / Bluetooth 4.2 ) . BTPS version is shown as 4.0.2.1.

    Regards,

    Manoj 

  • 0 in reply to Manoj Chandran
    TI__Mastermind 29311 points

    Hi Manoj,

    Manoj Chandran said:

    1.  The passkey validity duration is limited.  Is there any setting by which we can increase/set the validity time of generated passkey?

    This also is defined in the Bluetooth Core specifications. The response time requirement is not configurable.

    Manoj Chandran said:

    2. Is there any command by which we can know the Bluetooth version we are using ? (Bluetooth 4.0 / Bluetooth 4.2 ) . BTPS version is shown as 4.0.2.1.

    Which version of the TI dual-mode Bluetooth stack are you using?

    Best regards,

    Vihang