Event packet encoding

Frame format encoding of the BLE_GAP_EVT_CONNECTED packet.

Event ID = 0x10 for BLE_GAP_EVT_CONNECTED.

All BLE Events, ble_evt_t, are encoded with the header ble_evt_hdr_t first, containing only the 'Event ID', followed by the event. The 'Event Length' will not be encoded as the size of the event could be of different sizes depending on decoder architecture.

The BLE GAP event contains a connection handle, and for the BLE GAP Connected event, the ble_gap_evt_connected_t is encoded after connection handle as seen in Figure 1.

The order of the encoding is:

- 2 bytes:		Connection Handle
- 7 bytes:	ble_gap_addr_t	Peer Address (See Figure 3 for details on encoding)
- 7 bits:		IRK Index
- 1 bit:		IRK Match
		IRK Match & Index are encoded together in 1 byte.
- 8 bytes:	ble_gap_conn_params_t :	GAP Connection Parameters (See Figure 4 for details on encoding)

Encoding of BLE GAP Event - Connected

Figure 1: Encoding of BLE GAP Connected event.

Encoding of Peer Address

Figure 2: Encoding of peer address inside the BLE GAP Connected event.

Encoding of IRK byte

Figure 3: Encoding of IRK byte inside BLE GAP Connected event.

Encoding of GAP Connection Parameters

Figure 4: Encoding of GAP Connection Parameters inside the BLE GAP Connected event.