DVK-BTM521 Laird Technologies, DVK-BTM521 Datasheet - Page 68

• Manufacturer Part Number: DVK-BTM521
• Description: BT MM DEV KIT
• Manufacturer: Laird Technologies
• Type: Transceiver, Bluetoothr

Specifications of DVK-BTM521

• Frequency: 2.4GHz
• Interface Type: RS-232
• Processor Series: BTM521
• Silicon Manufacturer: Laird Technologies
• Kit Application Type: Communication & Networking
• Application Sub Type: Bluetooth
• Kit Contents: Development Board & Software Tools
• Features: Supports CSR
• Rohs Compliant: Yes
• For Use With/related Products: BTM521
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DVK-BTM521

BTM520/521
Bluetooth
AT COMMAND SET
REFERENCE
68 www.lairdtech.com
®
Multimedia Plus Module
Task
Enable HFP-HF role
Initiate SLC from HF
Initiate audio connection from HF
Release audio only from HF /
Transfer Audio to AG
Initiate call with number provided
by HF
Initiate call with number provided
by memory of AG
Initiate call to last dialled number
Disconnect SLC from HF (and
audio if exists)
Enable verbose indicators
Set HF supported features
Inquire HF status
7.1.18 Hands-free summary
Table 3.30: Hands-free role (HFP) – Summary of S Registers and AT Commands
HF”COPS,ERROR”
HFG has replied with “ERROR” to reception of “AT+COPS”.
HF”CMEE,OK”
HFG has replied with OK to reception of “AT+CMEE=1”.
HF”CMEE,ERROR”
HFG has replied with “ERROR” to reception of “AT+CMEE=1”.
HFI<…>
Indicator (+CIEV…) from audio gateway was received. Refer to section 7.1.15 on page 66.
NO CARRIER 111E
Service level connection to local HF-instance has been released. Please note section 6,
page 92, too.
AT-Command / S
Register
S102
AT+HFD<bd_ad-
dr
AT+HFA
AT+HFR
AT+HFC”nnn”
AT+HFCM”mmm”
AT+HFCL
AT+HFH / ATH111E
/ ATH*
S333
S581
ATI65
hex
>
Comment
0x10 = HF role of HFP (bitmask), needs subsequent
“AT&W” and “ATZ” to activate
Responses:
successful: “CONNECT 123456789012,111F,>”
failed: “NO CARRIER”
profile disabled: “ERROR 59”
incorrect state: “ERROR 63”
Responses:
HF“AU1”
Responses:
HF“AU0”
“nnn” = number string
“mmm” = memory location in AG of number
requested to dial
Response:
HFI”callsetup”,2 – confirmation, call is being set up
OR:
HFG”ERROR” - last dialled number not available
in AG
Please note section 4, page 90 and section 6,
page 92
0 – display indicator ID only in HFI.. asynchronous
message (refer to Section 7.1.15 on page 66)
1 – display indicator string in HFI… asynchronous
message (refer to Section 7.1.15 on page 66)
Bitmask
Bit 1 – call waiting notification capability
Bit 2 – CLIP presentation capability
Other options are not supported by the current
firmware
0 = not connected
1 = SLC connected
2 = Audio connected
3 = in call - SLC
4 = in call - audio
Laird Technologies