UM1755 datasheet(49/123 Pages) STMICROELECTRONICS

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UM1755

Vendor specific commands

123

0x10. The procedure is terminated when a connection is established or the upper layer

terminates the procedure by issuing the command Aci_Gap_Terminate_Gap_Procedure

with the procedure code set to 0x10.

4.3.29

Aci_Gap_Start_Selective_Conn_Establishment

Description:

Start a selective connection establishment procedure. The GAP adds the specified device

addresses into white list and enables scanning in the controller with the scanner filter policy

set to “accept packets only from devices in whitelist”. All the devices found are sent to the

upper layer by the event Evt_Blue_Gap_Found_Device. The upper layer then has to select

one of the devices to which it wants to connect by issuing the command

Aci_Gap_Create_Connection.

Table 91. Aci_Gap_Start_Selective_Conn_Establishment

Command name

Parameters

Return

Aci_Gap_Start_Selective_Conn_Establishment

(0xFC9B)

Scan_Type

Scan_Interval

Scan_Window

Own_Address_Type

filterDuplicates

Num_WhiteList_Entries

Addr_Array

Status

Table 92. Aci_Gap_Start_Selective_Conn_Establishment command parameters

Parameter

Size

Description

Scan_Type

1 byte

0x00: Passive scanning

0x01: Active scanning

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.

Own_Address_Typ

1 byte

0x00: Public device address (default)

0x01: Random device address

filterDuplicates

1 byte

0x00: Do not filter the duplicates (default)

0x01: Filter duplicates

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