UM1865 datasheet(104/132 Pages) STMICROELECTRONICS

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Vendor specific commands

UM1865

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DocID027514 Rev 1

4.5.35

Aci_Gatt_Read_Charac_Descriptor

Description:

Start the procedure to read the descriptor specified.

Event(s) generated:

A command status event is generated on the receipt of the command. When the procedure

is completed, a Evt_Blue_Gatt_Procedure_Cmplt event is generated. Before procedure

completion the response packet is given through Evt_Blue_Att_Read_Resp event.

4.5.36

Aci_Gatt_Write_Without_Response

Table 226. Aci_Gatt_Read_Charac_Descriptor

Command name

Parameters

Return

Aci_Gatt_Read_Charac_Descriptor (0xFD22)

Connection handle

AttrHandle

Status

Table 227. Aci_Gatt_Read_Charac_Descriptor command parameters

Parameter

Size

Description

Connection handle

2 bytes

Connection handle for which the command is given

AttrHandle

2 bytes

Handle of the descriptor to be read

Table 228. Aci_Gatt_Read_Charac_Descriptor 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 229. Aci_Gatt_Write_Without_Response

Command name

Parameters

Return

Aci_Gatt_Write_Without_Response (0xFD23)

Connection handle

AttrHandle

ValLen

AttrVal

Status

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