CC2640R2F: How to get raw data in scanning

Hi Vijay,

If you are trying to do both Advertising/Peripheral role and Observer role on the same device, it would probably be a good idea to start with the multi-role example included in the SDK rather than project zero: That is better set up to handle multiple connections.

You would likely still need to make some modifications.

When you say you want to get the "raw data" are you saying that you want to get the Scan Response data from the advertising device (not doing a connection and doing a GATT read) correct? See how in the simple_observer example that you mentioned, in the file simple_observer.c in SimpleBLEObserver_processRoleEvent, there is a case for handling GAP_DEVICE_INFO_EVENT? See how deviceInfo struct is used, which is of the type gapDeviceInfoEvent_t (the gapDeviceInfoEvent_t can be found in gap.h). Looking at the gapDeviceInfoEvent_t struct, you can see that the type includes information on whether the advertising report was a scan response or a different kind of advertisement in the eventType field. Further, it includes a pointer *pEvtData and a dataLen that could be used to get the raw data.

/**
 * @brief @ref GAP_DEVICE_INFO_EVENT message format.
 *
 * This message is sent to the
 * app during a Device Discovery Request, when a new advertisement or scan
 * response is received.
 */
typedef struct
{
  osal_event_hdr_t  hdr;    //!< @ref GAP_MSG_EVENT and status
  uint8 opcode;             //!< @ref GAP_DEVICE_INFO_EVENT
  uint8 eventType;          //!< Advertisement Type: @ref GAP_Adv_Report_Types
  uint8 addrType;           //!< address type: @ref GAP_Addr_Types
  uint8 addr[B_ADDR_LEN];   //!< Address of the advertisement or SCAN_RSP
  int8 rssi;                //!< Advertisement or SCAN_RSP RSSI
  uint8 dataLen;            //!< Length (in bytes) of the data field (evtData)
  uint8 *pEvtData;          //!< Data field of advertisement or SCAN_RSP
} gapDeviceInfoEvent_t;

So, when you get a GAP_DEVICE_INFO_EVENT event you would want to get the data from deviceInfo by first checking if the event was a scan response by checking the eventType field, and then if it is you could copy the data to wherever you are wanting it, e.g. to be stored in a list of results like the discovered device addresses, or to print out, etc.

Regards,

Katie