RE: Why can't I decode my received data?

Petter Myhre — Thu, 21 Dec 2017 12:59:04 GMT

You don't have params in the ble_gattc_evt_t struct in ble_gattc.h?

/**@brief GATTC event structure. */
typedef struct
{
  uint16_t            conn_handle;                /**< Connection Handle on which event occured. */
  uint16_t            gatt_status;                /**< GATT status code for the operation, see @ref BLE_GATT_STATUS_CODES. */
  uint16_t            error_handle;               /**< In case of error: The handle causing the error. In all other cases @ref BLE_GATT_HANDLE_INVALID. */
  union
  {
    ble_gattc_evt_prim_srvc_disc_rsp_t          prim_srvc_disc_rsp;         /**< Primary Service Discovery Response Event Parameters. */
    ble_gattc_evt_rel_disc_rsp_t                rel_disc_rsp;               /**< Relationship Discovery Response Event Parameters. */
    ble_gattc_evt_char_disc_rsp_t               char_disc_rsp;              /**< Characteristic Discovery Response Event Parameters. */
    ble_gattc_evt_desc_disc_rsp_t               desc_disc_rsp;              /**< Descriptor Discovery Response Event Parameters. */
    ble_gattc_evt_char_val_by_uuid_read_rsp_t   char_val_by_uuid_read_rsp;  /**< Characteristic Value Read by UUID Response Event Parameters. */
    ble_gattc_evt_read_rsp_t                    read_rsp;                   /**< Read Response Event Parameters. */
    ble_gattc_evt_char_vals_read_rsp_t          char_vals_read_rsp;         /**< Characteristic Values Read Response Event Parameters. */
    ble_gattc_evt_write_rsp_t                   write_rsp;                  /**< Write Response Event Parameters. */
    ble_gattc_evt_hvx_t                         hvx;                        /**< Handle Value Notification/Indication Event Parameters. */
    ble_gattc_evt_exchange_mtu_rsp_t            exchange_mtu_rsp;           /**< Exchange MTU Response Event Parameters. */
    ble_gattc_evt_timeout_t                     timeout;                    /**< Timeout Event Parameters. */
    ble_gattc_evt_attr_info_disc_rsp_t          attr_info_disc_rsp;         /**< Attribute Information Discovery Event Parameters. */
  } params;                                                                 /**< Event Parameters. @note Only valid if @ref gatt_status == @ref BLE_GATT_STATUS_SUCCESS. */
} ble_gattc_evt_t;
/** @} */

RE: Why can't I decode my received data?

ndarkness — Thu, 21 Dec 2017 12:50:17 GMT

@Petter Myhre, I am using SDK12.2. If I use p_ble_evt->evt.gattc_evt.params.hvx.data[] I get an error sayingexpected expression before ']' token

RE: Why can't I decode my received data?

Petter Myhre — Thu, 21 Dec 2017 11:19:51 GMT

Which SDK and SoftDevice version are you using?

Should it be

p_ble_evt->evt.gattc_evt.params.hvx.data[]

not

p_ble_evt->evt.gattc_evt.paras.hvx.data[0]