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CC2340R5:GATT service timeout

Hiro
Prodigy 50 points

Part Number: CC2340R5

Hi,

If a timeout occurs for some reason during GATT service communication in the CC2340R5 environment, how will it be notified to the user code?

  • 0
    TI__Expert 6106 points

    Hi Hiro, 

    If the connection cannot be performed within the predefined time: 

    BLEAppUtil_cancelConnect() and a BLEAPPUTIL_CONNECTING_CANCELLED_EVENT  will be called.

    Regards,

    Alex

  • 0 in reply to Alex Paul
    Prodigy 50 points

    Hi Alex,

    Will the same thing happen if a timeout occurs when reading or writing Characteristic in the GATT service after connecting?

  • 0 in reply to Hiro
    TI__Expert 6106 points

    Hi Hiro,

    In generall you can find possible GATT events within the: 

    BLEAppUtil_GATTEventMaskFlags_e in bleapputil_api.h

    these events are posted by TI BLE stack.

    The reaction will be implemented and can be done similar as in our examples.

    Are you working on a recent issue or are your questions just informal? 

    Regards,

    Alex

  • 0 in reply to Alex Paul
    Prodigy 50 points

    Hi Alex,

    Our customer decided to change the BLE IC in their existing equipment from another company's product to CC2340R5.
    Therefore, we are working on porting the program for the existing device to the new device.
    In existing devices, an event occurs when GATT times out.
    I needed the user app to terminate the connection in that event.
    Does a similar event exist in CC2340R5? I would also like to know if it is necessary for the user application to terminate the connection.
    I checked BLEAppUtil_GATTEventMaskFlags_e, but it seemed that there was no event related to GATT timeout.

  • +1 in reply to Hiro
    TI__Guru** 101540 points

    Hi Hiro,

    Timeout in GATT operations are passed to the application through GATT messages (type gattMsgEvent_t). The filed hdr (type osal_event_hdr_t) of such messages contains a status (type uint8_t) set to bleTimeout  in case a timeout has occurred.

    I hope this will help,

    Best regards,

  • 0 in reply to Clément
    Prodigy 50 points

    Hi Alex,

    Thanks to your answer my problem seems to be solved.
    thank you very much.