UM1865 datasheet(25/132 Pages) STMICROELECTRONICS

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UM1865

Vendor specific commands

132

Description:

Set the device in limited discoverable mode (as defined in GAP specification volume 3,

section 9.2.3). The device will be discoverable for maximum period of TGAP

(lim_adv_timeout) = 180 seconds (from errata). The advertising can be disabled at any time

by issuing Aci_Gap_Set_Non_Discoverable command.

The Adv_Interval_Min and Adv_Interval_Max parameters are optional. If both are set to 0,

the GAP will use default values for adv intervals for limited discoverable mode.

To allow a fast connection, the host can set Local_Name, Service_Uuid_List,

Slave_Conn_Interval_Min and Slave_Conn_Interval_Max. These parameters are optional

in this command. These values can be set in advertised data using GAP_Update_Adv_Data

command separately.

Table 21. Aci_gap_set_limited_discoverable command parameters

Parameter

Size

Description

Advertising_Event_Type

1 byte

0x00: Connectable undirected advertising (default)

0x02: Scannable undirected advertising

0x03: Non connectable undirected advertising

Adv_Interval_Min

2 bytes

Minimum advertising interval for non-directed

advertising.

Range: 0x0020 to 0x4000 Default: N = 0x0800 (1.28

second) Time = N * 0.625 msec Time Range: 20 ms to

10.24 sec

Adv_Interval_Max

2 bytes

Maximum advertising interval for non-directed

advertising.

Range: 0x0020 to 0x4000 Default: N = 0x0800 (1.28

seconds) Time = N * 0.625 msec Time Range: 20 ms

to 10.24 sec

Address_Type

1 byte

0x00: Public device address (default)

0x01: Random device address

Adv_Filter_Policy

1 byte

0x00: Allow scan request from any, allow connect

request from any (default).

0x01: Allow scan request from white list only, allow

connect request from Any.

0x02: Allow scan request from any, allow connect

request from white list only.

0x03: Allow scan request from white list only, allow

connect request from white list only.

Local_Name_Length

1 byte

Length of the local name string in octets.

If length is set to 0x00, Local_Name parameter should

not be used.

Local_Name

0-N bytes

Local name of the device. This is an ASCII string

without NULL character.

First byte is the AD type:

AD_TYPE_SHORTENED_LOCAL_NAME or

AD_TYPE_COMPLETE_LOCAL_NAME.

Service_UUID_Length

1 byte

Length of the service UUID list in octets. If there is no

service to be advertised, set this field to 0x00.

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