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UM1865 Datasheet(PDF) 74 Page - STMicroelectronics

Part # UM1865
Description  The purpose of this document is to describe the design of the application
PDF  132 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM1865 Datasheet(HTML) 74 Page - STMicroelectronics

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Vendor specific commands
UM1865
74/132
DocID027514 Rev 1
Description:
Add a characteristic to a service.
Table 137. Aci_Gatt_Add_Characteristic command parameters
Parameter
Size
Description
Service_Handle
2 bytes
Handle of the service to which the characteristic has to be
added
Char_UUID_Type
1 byte
0x01: 16-bit UUID
0x02: 128-bit UUID
Char_UUID
2 bytes or
16 bytes
16-bit or 128-bit UUID
Char_Value_Length
1 byte
Maximum length of the characteristic value
Char_Properties
1 byte
Bitwise OR values of Characteristic Properties (defined in
Volume 3, Section 3.3.3.1 of Bluetooth Specification 4.1)
Security_Permissions
1 byte
0x00: ATTR_PERMISSION_NONE
0x01: Need authentication to read
0x02: Need authorization to read
0x04: Link should be encrypted to read
0x08: Need authentication to write
0x10: Need authorization to write
0x20: Link should be encrypted for write
Gatt_Evt_Mask
1 byte
0x01: GATT_SERVER_ATTR_WRITE
The application will be notified when a client writes to this
attribute
0x02: GATT_INTIMATE_AND_WAIT_FOR_APPL_AUTH
The application will be notified when a write request/write
cmd/signed write cmd is received by the server for this
attribute
0x04: GATT_INTIMATE_APPL_WHEN_READ_N_WAIT
The application will be notified when a read request of any
type is got for this attribute
Encryption_Key_Size
1 byte
The minimum encryption key size requirement for this
attribute. Valid Range: 7 to 16
isVariable
1 byte
0x00: The attribute has a fixed length value field
0x01: The attribute has a variable length value field



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