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CC2640R2F: How to retrieve Connection Handle ID on ICall events

ScanLabs
Expert 5125 points
Part Number: CC2640R2F


Hello guys ,

on a Multirole Project (sdk_3_20_00_68) I need to manage multiple connections .

I need to get the connection handle , or any other useful info linked to the connection handle , of the Master who wrote a characteristic value . 

multi_role_processAppMsg(...) is sourced with pMsg  that does not contain any reference to the Connection Handle .

How I can workaround ?

Thank you,

Paolo

  • 0
    TI__Guru 57865 points

    Hi Paolo,

    Assigning an expert to comment. Stay tuned.

  • 0
    TI__Guru* 82431 points

    Hi Paolo,

    You're right, the ATT_WRITE_REQ event (attWriteReq_t) does not contain a connection handle for the peer device. However when it's passed to the application it is packaged in a gattMsgEvent_t :

    /**
 * @brief GATT @ref GATT_MSG_EVENT message format.
 *
 * This message is used to forward an
 * incoming attribute protocol/profile message up to upper layer application.
 */
typedef struct
{
  osal_event_hdr_t hdr; //!< GATT_MSG_EVENT and status
  uint16 connHandle;    //!< Connection message was received on
  uint8 method;         //!< Type of message
  gattMsg_t msg;        //!< Attribute protocol/profile message
} gattMsgEvent_t;

    So, when you are receiving the event in multi_role_processGATTMsg() you should be able to get the connection handle:

    pMsg->connHandle