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Reason 0x28 (Control Packet Instant Passed)

Greg Stewart
Intellectual 405 points

Hello,

Using Btool, I connect to another 3rd party device which uses a TI CC254X chip. I get this termination, usually right after the device sends a param update request.  On sniffer, I don't see any more packets from slave. Do you guys know what this error reason means? Is this just not getting a packet after connection update instant or maybe a packet before instant?

[248] : <Rx> - 02:26:18.193
-Type        : 0x04 (Event)
-EventCode    : 0xFF (HCI_LE_ExtEvent)
-Data Length    : 0x06 (6) bytes(s)
 Event        : 0x0606 (GAP_TerminateLink)
 Status        : 0x00 (Success)
 ConnHandle    : 0x0000 (0)
 Reason        : 0x28 (Control Packet Instant Passed)

Thanks,

-Greg

  • 0
    TI__Mastermind 34660 points

    Hello Greg :)

    It looks like this means that the instant (for updating the paramters) has occurred and the control procedure for the connection update request still has not been ACK'd by the slave.

    Do you see the control procedure being ack'd?  I would try comparing what you see to the control procedure for a successful param update between two TI devices.