User's Manual

42
www.lairdtech.com
Laird Technologies
BTM510/511
Bluetooth
®
Multimedia Module
Task AT-Command / SRegister Comment
Initiate outgoing A2DP con-
nection
AT+APD<bd_addr> Response if accepted:
“CONNECT 0123456789012,110D,>”
Response if rejected:
“NO CARRIER 110D”
Close only A2DP connection “AT+APH” or
“ATH110D”
Response:
“NO CARRIER 110D” if connection has existed and
S329=0
“NO CARRIER” if connection has not existed and
S329=0
Close all connections ATH* Response:
“NO CARRIER <proleUUID>” for each prole that
was previously connected (see section 4, page 83)
Set gain level S589 [0..22], default =
15
Set codec output gain level (applies to sink)
S590 [0..22], default =
15
Set codec input gain level (applies to source)
Set overall gain (dBr * 10) S689 [-450..215] Set codec output gain in dBr * 10
(applies to sink), default = 0
S690 [-450..215] Set codec input gain in dBr * 10
(applies to source), default = 0
Increment Gain AT+GOU Increment codec output gain by 1 step in gain
table (refer to section 1, page 74)
AT+GIU Increment codec input gain by 1 step in gain table
(refer to section 1, page 74)
Decrement Gain AT+GOD Decrement codec output gain by 1 step in gain
table (refer to section 1, page 74)
AT+GID Decrement codec input gain by 1 step in gain table
(refer to section 1, page 74)
Set A2DP Sink supported
features bit mask
S312 [1..15] Bitmask - sink supported features:
Bit 0 = Headphone (default)
Bit 1 = Speaker
Bit 2 = Recorder
Bit 3 = Amplier
Subsequent AT&W plus ATZ required for a new
value to become effective
Set A2DP Source supported
features bit mask
S313 [1..15] Bitmask - source supported features:
Bit 0 = Player (default)
Bit 1 = Microphone
Bit 2 = Tuner
Bit 3 = Mixer
Subsequent AT&W plus ATZ required for a new
value to become effective
Table 3.16: A2DP – S Registers and AT-Commands
AT COMMAND SET
REFERENCE