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UM1547 Datasheet(PDF) 34 Page - STMicroelectronics

Part # UM1547
Description  Using the firmware of the AT command set
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM1547 Datasheet(HTML) 34 Page - STMicroelectronics

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FW configuration variables
UM1547
34/51
DocID023232 Rev 5
Var18
UseSmallPackets
False
If true, only DM1, DH1, DM3, DH3 packets are
allowed on a link. EDR is disabled.
Var19
EnableAFH
True
Enable/disable the adaptive frequency hopping
mode.
Var20
EnablePowerControl
False
Enable/disable the Bluetooth dynamic power
control feature.
Var21
HostFlowControl
0
Reserved for future usage.
Var22
ATReply
AT-AB
Sets the AT command reply prefix. All events
that are displayed are prefixed by this character
string (case sensitive).
Var23
QoS_Latency
20
Sets the quality of service latency from 3 to 20
Slots. A slot size is 625 microseconds.
Var24
CpuMHz
32
Sets the module’s CPU speed: 2, 4, 8, 12, 16,
20, 24, 28, 32, 36 and 64 MHz are allowed.
(Note: CpuMHz: 40 to 63 are not supported.)
Var25
HciBaudrate
921600
Baud rate of the HCI interface to the Bluetooth
controller: 230,400; 460,800; 921,600; and
2,000,000 baud are allowed.
Var26
SPIEnable
False
Enables the SPI interface to external pins.
Var27
SPIMode
Slave
Mode of the SPI.
Var28
I2CEnable
False
Enables the I2C interface to external pins.
(Note: not supported)
Var29
COD
000000
Bluetooth class of device.
Var30
LinkSecurity
False
Var31
HostEvents
True
All host events are sent when true.
Var32
BondingAllowed
True
Automatically allows bonding by default when
true.
Var33
PageScan
True
Enables Page scan when true, or halts Page
scan when false.
Var34
InquiryScan
True
Enables Inquiry scan when true, or halts Inquiry
scan when false.
Var35
MPMode
0
0 = point-to-point, 1 = multipoint using packet
protocol, 2 = broadcast.
Var36
UseExtLPO
False
True when a 32.768 kHz low power oscillator is
present, and false if not present.
Var37
HSE_MHz
13
MHz rating of the main crystal oscillator (read-
only)
Var38
EnableEncryption
False
Set to true to enable the Bluetooth link
encryption
Table 9. AT version 1.2 system configuration settings – version 1.2 (continued)
Variable
Name
Default
Description



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