UM1865 datasheet(86/132 Pages) STMICROELECTRONICS

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Vendor specific commands

UM1865

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Event(s) generated:

A command status event is generated on the receipt of the command. The responses of the

procedure are given through the Evt_Blue_Att_Read_By_Group_Resp event. The end of

the procedure is indicated by a Evt_Blue_Procedure_Complete event.

4.5.17

Aci_Att_Prepare_Write_Req

Description:

This will prepare a write of the attribute value specified.

Table 170. Aci_Att_Read_Attr_By_Grp_Type_Req command parameters

Parameter

Size

Description

Connection handle

2 bytes

Connection handle for which the command is given

Start handle

2 bytes

Start handle of the range of values to be read on the server

End handle

2 bytes

End handle of the range of values to be read on the server

UUID type

1 byte

0x01: 16-bit UUID

0x02: 128-bit UUID

UUID

2 bytes or

16 bytes

UUID

Table 171. Aci_Att_Read_Attr_By_Grp_Type_Req return parameters

Parameter

Size

Description

Status

1 byte

0x00: Success

0x42: Invalid parameters

0x46: Not allowed

- If the exchange has already taken place

- If GATT is expecting response for previous request

- Already a request is in the queue to be sent

- Channel not open

- Already one GATT procedure is started

Table 172. Aci_Att_Prepare_Write_Req

Command name

Parameters

Return

Aci_Att_Prepare_Write_Req (0xFD10)

Connection handle

AttrHandle

valOffset

AttrValLen

AttrVal

Status

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