UM1865 datasheet(48/132 Pages) STMICROELECTRONICS

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Vendor specific commands

UM1865

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The device found when the procedure is ongoing is returned to the upper layers through the

event LE_Advertising_Report.

4.3.26

Aci_Gap_Start_Name_Discovery_Proc

Description:

Start the name discovery procedure. A LE_Create_Connection call will be made to the

controller by GAP with the initiator filter policy set to “ignore whitelist and process

connectable advertising packets only for the specified device”. Once a connection is

established, GATT procedure is started to read the device name characteristic. When the

read is completed (successfully or unsuccessfully), a Evt_Blue_Gap_Procedure_Complete

event is given to the upper layer. The event also contains the name of the device if the

device name was read successfully.

Table 83. Aci_Gap_Start_Name_Discovery_Proc

Command name

Parameters

Return

Aci_Gap_Start_Name_Discovery_Proc (0xFC98)

Scan_Interval

Scan_Window

Peer_Address_Type

Peer_Address

Own_Address_Type

Conn_Interval_Min

Conn_Interval_Max

Conn_Latency

Supervision_Timeout

Conn_Len_Min

Conn_Len_Max

Status

Table 84. Aci_Gap_Start_Name_Discovery_Proc command parameters

Parameter

Size

Description

Scan_Interval

2 bytes

Time interval from when the controller started its last LE scan

until it begins the subsequent LE scan. The scan interval should

be a number in the range 0x0004 to 0x4000. This corresponds to

a time range 2.5 msec to 10240 msec. For a number N, Time = N

* 0.625 msec.

Scan_Window

2 bytes

Amount of time for the duration of the LE scan. Scan_Window

shall be less than or equal to Scan_Interval. The scan window

should be a number in the range 0x0004 to 0x4000. This

corresponds to a time range 2.5 msec to 10240 msec. For a

number N, Time = N * 0.625 msec.

Peer_Address_Type

1 byte

0x00: Public device address (default)

0x01: Random device address

Peer_Address

6 bytes

Address of the peer device with which a connection has to be

established.

Own_Address_Type

1 byte

0x00: Public device address (default)

0x01: Random device address

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