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Bluetooth, protocol, SCID, DCID.

Discussion in 'Electronic Basics' started by Boki, Apr 7, 2005.

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  1. Boki

    Boki Guest

    Hi All,
    My problem:

    I am dealing with a Bluetooth device connection problem. I save log file by
    CATC XXX.
    I found there is a different between connection success and connection fail
    at:

    1. SCID.
    2. DCID.

    I can't sure these two item are important to connection or not, but I can
    only find these right now.

    Otherwise, I can't explain why my master device request "Disconnect"( I want
    to it keep the connection), I don't know the reason, after that request,
    the salve accpet this request (Disconnect), but the bluetooth connection
    still exist, but after that time, I can only receive bad payload.

    Is that the bluetooth firmware/driver problem?

    Please advice any comment.
    Best regards,
    Boki.

    ---
    http://www.palowireless.com/infotooth/tutorial.asp

    SCID
    Source Channel Identifier. Used in the L2CAP layer to indicate the channel
    endpoint on the device sending the L2CAP message. It is a device local name
    only.


    DCID
    Destination Channel Identifier, used as the device local end point for an
    L2CAP transmission. It represents the channel endpoint on the device
    receiving the message. It is a device local name only. See also SCID.
     
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