DVK-BTM521 Laird Technologies, DVK-BTM521 Datasheet - Page 75

• 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
75 www.lairdtech.com
®
Multimedia Plus Module
Call status (AT+HFGC?)
Incoming (ringing)
Dialling
Alerting
Active, waiting
Alerting
Held
7.2.17 Call status vs. HFG status
7.2.18 Audio Gateway (HFP) - Asynchronous Messages
Response at the end of list:
<cr,lf>OK<cr,lf>
S354 – Enable/disable verbose presentation of call records
S register 354 controls verbose presentation of call records (AT+HFGC?)
Value 0 = non-verbose mode (default)
Value 1 = verbose mode
Verbose mode gives better understanding of call states and call records in a human
readable style whereas non-verbose mode is the preferred mode for a host microcontroller.
Table 3.32 maps the call states to HFG states. For more
information about call states refer to section 7.2.16. For more information about HFG status
refer to section 7.2.15.
CONNECT <bd_addr
A Service level connection to headset has been established and initialized.
<bd_addr
<uuid
<dir>
HFG”VGS<n>”
Speaker gain setting message was received from HF (“+VGS:<n>”) with n = gain [0..15].
HFG”VGM<n>”
Microphone gain setting message was received from HF (“+VGM:<n>”) with n = gain [0..15].
HFG”AU1”
Audio connection (SCO) has been established (= “audio on”).
HFG”AU0”
Audio connection (SCO) has been released (= “audio off”).
HFG”C”
A call has been established and is ongoing.
HFG”T”
A call has been terminated.
HFG”R”
Incoming call was rejected by HF.
HFG”OP?”
Request for network operator string (“AT+COPS?”) received from HF. AG is expected to
reply with “+COPS:0,0,<operator_string>” on SLC. Use AT+HFGO”<operator_string>”.
hex
>
hex
>
Table 3.32: Mapping of call status and HFG status
: Bluetooth address of headset device
: “111F” if it is an incoming connection
: “<”/”>”/”I”/”O”’ optionally indicates the direction (incoming/outgoing),
HFG status, SLC (ATI66)
5/6
5/6
5/6
5/6
3/4
3
“111E” if it is an outgoing connection.
please refer to S331 and section 6, page 92.
hex
>,<uuid
hex
>[,<dir>]
HFG status, no SLC (ATI66)
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8
8
8
8
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Laird Technologies