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Datasheet File OCR Text:

SPBT2532C2.AT
Bluetooth(R) technology class-2 module
Preliminary data
Features

Bluetooth(R) specification compliant V2.1 Output power class-2 Transmission rate up to 2 Mbps with EDR Point-to-point Packet types supported: - ACL: DM1, DM3, DM5, DH1, DH3, DH5, 2DH1, 2-DH3, 2-DH5 Adaptive frequency hopping (AFH) Efficient and flexible support for WLAN coexistence in collocated scenario Communication interfaces: (a) - Fast UART up to 3.25 Mbit/s - SPI interface - I2C interface - I2S interface General I/O: (a) - 4 general purpose I/O - 4 x 12-bit A/D input User interface: - AT command set Memory: - 256 Kbytes Flash memory - 48 Kbytes RAM memory 3.3 V single supply voltage No external oscillator required Module size: 10 x 13 mm

Description
The SPBT2532C2.AT is a surface-mount PCB module that provides fully embedded, ready-to-use Bluetooth wireless technology. It is designed for maximum performance in a minimal space and includes 4 general purpose (a) and 4 A/D IO lines (a), several serial interface options (a), and up to 2 Mbps data throughput. The re-programmable Flash memory contains embedded firmware for serial cable replacement using the Bluetooth SPP profile.

a. All these resources cannot coexist at the same time; they are shared on the 8 pins available for interface. Standard configuration for AT command set is 4 pins for UART and 4 pins for GPIO.
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This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
Contents
SPBT2532C2.AT
Contents
1 2 3 4 RoHS compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 4.2 4.3 4.4 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Operating ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 DC I/O specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5
Bluetooth parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 RF performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1 6.2 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7
Software architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.1 7.2 7.3 Lower layer stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Upper layer stack: amp'ed UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 AT command set: abSerial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8
Hardware design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.1 8.2 8.3 Component drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 UART interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Typical circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Appendix A Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
A.1 FCC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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Appendix B
B.1 B.2 B.3 B.4 B.5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Definitions and acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 abSerial interface overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Factory defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Appendix C Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
C.1 Bond . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
C.1.1 C.1.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
C.2
Build . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
C.2.1 C.2.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
C.3
Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
C.3.1 C.3.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
C.4
ChangeBaud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
C.4.1 C.4.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
C.5
ChangeDefaultBaud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
C.5.1 C.5.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
C.6
DefaultLocalName. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
C.6.1 C.6.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
C.7
DeleteSmartCable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
C.7.1 C.7.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
C.8
DisableBond . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
C.8.1 C.8.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
C.9
Discovery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
C.9.1 C.9.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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C.10
DUNConnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
C.10.1 C.10.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
C.11
DUNDisconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
C.11.1 C.11.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
C.12
EnableBond. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
C.12.1 C.12.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
C.13
EraseBondTable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
C.13.1 C.13.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
C.14
ExitPark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
C.14.1 C.14.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C.15
ExitSniff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C.15.1 C.15.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C.16
GPIOConfig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C.16.1 C.16.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C.17
GPIORead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C.17.1 C.17.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
C.18
GPIOWrite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
C.18.1 C.18.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
C.19
Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
C.19.1 C.19.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
C.20
HostEvent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
C.20.1 C.20.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
C.21
LocalName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
C.21.1 C.21.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
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C.22
Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
C.22.1 C.22.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
C.23
RemoteCommand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
C.23.1 C.23.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
C.24
RemoteCmdDisconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
C.24.1 C.24.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
C.25
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
C.25.1 C.25.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
C.26
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
C.26.1 C.26.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
C.27
SmartCableSetup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
C.27.1 C.27.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
C.28
Sniff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
C.28.1 C.28.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
C.29
SPPConnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
C.29.1 C.29.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
C.30
SPPDisconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
C.30.1 C.30.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
C.31
StreamingSerial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
C.31.1 C.31.2 C.31.3 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Query . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
C.32
UpdateInquiryScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
C.32.1 C.32.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
C.33
UpdatePageScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
C.33.1 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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SPBT2532C2.AT Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
C.34
Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
C.34.1 C.34.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Appendix D Error responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 ErrConnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 ErrExecution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 ErrFormat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 ErrInvalidParam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 ErrNumParam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 ErrUnknownCmd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 ErrInProgress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Commands and associated errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Appendix E
E.1 E.2 E.3 E.4
Other responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Escape sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Controlled disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Unexpected disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
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RoHS compliance
1
RoHS compliance
ST modules are RoHS compliant and being based on ST devices comply with ECOPACK(R) norms implemented by ST.
2
Application

Serial cable replacement Industrial control Medical POS terminals Data acquisition equipment Internet access points Machine control Sensor monitoring Robotic and bionic control Security control Patient monitoring Wireless printers Cordless terminals Laptops, PCs and accessories Handheld devices and accessories HID devices (keyboard, mouse, joystick, game controller...)
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Block diagram
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3
Block diagram
Figure 1. Block diagram
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Electrical characteristics
4
4.1
Electrical characteristics
Absolute maximum ratings
Table 1. Absolute maximum ratings
Rating Storage temperature range Supply voltage, VIN RF input power Input voltage on 5 V tolerant pin Input voltage on non-5 V tolerant pin Min -55 -0.3 -0.3 -0.3 Typ Max +105 + 5.0 +10 +5.5 +4.0 Unit C V dBm V V
4.2
Operating ranges
Operating ranges define the limits for functional operation and parametric characteristics of the module. Functionality outside these limits is not implied Table 2. Operating ranges
Rating Operating temperature range Supply voltage VIN Signal pin voltage RF frequency Min -40 2.8 2400 Typ 3.0 3.0 Max 85 3.6 2483.5 Unit C V V MHz
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SPBT2532C2.AT
4.3
Power consumption

CPU 32 MHz UART supports up to 921 Kbps Data throughput up to 2 Mbps High speed CPU mode
Modes Avg Unit
Table 3.
Typical power consumption ACL data 115 KBaud UART at max throughput (Master) ACL data 115 KBaud UART at max throughput (Slave) Connection, no data traffic, master Connection, no data traffic, slave Standby, and page/inquiry scan, without deep sleep Standby, and page/inquiry scan, with deep sleep Connection, sniff 375ms (600 slots), master Connection, sniff 375ms (600 slots), slave 41.0 41.0 28.9 34.5 28.0 3.1 4.2 8.1 mA mA mA mA mA mA mA mA
4.4
DC I/O specification
Table 4.
Symbol VIL VIH VOL VOH IOL IOH RPU RPD
DC input / output specification
Parameter Low-level input voltage High-level input voltage Low-level output voltage High-level output voltage Low-level output current High-level output current Pull-up resistor Pull-down resistor Conditions VIN = 3.0 V (pin 8) VIN = 3.0 V (pin 8) VIN = 3.0 V (pin 8) VIN = 3.0 V (pin 8) VOL = 0.4 V VOH = 2.2 V Resistor turned on Resistor turned on Min 2.1 2.2 80 80 Max 0.9 V 0.4 4.0 mA 4.0 120 k 120 Unit
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Bluetooth parameters
5
5.1
Bluetooth parameters
RF performance characteristics
In the performance characteristics table the following applies:

Test condition: nominal Voltage: typical, VIN = 3.0 V Temperature: typical TA = 25 C RF performance characteristics
Conditions BT spec Typical 50 Unit
Table 5.
Parameters Antenna load Radio receiver Sensitivity level Maximum usable level Input VSWR Radio transmitter Output power Initial carrier frequency tolerance 20 dB bandwidth for modulated carrier
BER < 0.001 with DH5 BER < 0.001 with DH1
-70 -20
-85 +8 2.5:1
dBm dBm
50 load
-6 to +4 75 1000
+2 30 930
dBm kHz kHz
Note:
For more complete data, please refer to STM STLC2500D datasheet.
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Pin settings
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6
6.1
Pin settings
Pin connections
Figure 2. Pin connection diagram
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Pin settings
6.2
Pin description
Table 6.
Pin n
Pin description
Name Type Description ALT function
UART interface 13 14 11 12 Antenna 6 Reserved 9 Reserved I Boot 0 ANT RF I/O 50 Rx/Tx antenna port RXD TXD CTS RTS I O I O Receive data Transmit data Clear to send (active low) Request to send (active low)
2
ADC3 (1) ADC2 ADC0/I C Data/Aux Uart Rx ADC1/I2C Clock/Aux Uart Tx
Power and ground 8 5, 7 Reset 10 RESETN I Reset input (active low for 5 ms); Vin GND Vin GND
GPIO - general purpose input/output 1 2 3 4 GPIO [1] GPIO [2] GPIO [3] GPIO [4] I/O I/O I/O I/O General purpose input/output General purpose input/output General purpose input/output General purpose input/output SPI MISO SPI MOSI/I2S_SD SPI SCLK/ I2S_CK SPI SS/I2S_WS
1. ADC pin functions are not 5V tolerant, when used as ALT pin function. Otherwise the I/O pins are all 5V tolerant.
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Software architecture
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7
Software architecture
The SPBT2532C2.AT includes the Bluetooth full protocol stack with upper layers and profiles. Figure 3. Bluetooth firmware implementation
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Software architecture
7.1
Lower layer stack

Full Bluetooth v2.1 data rate (3M bps maximum) Device power modes--active, sleep and deep sleep Wake on Bluetooth feature--optimized power consumption of host CPU Authentication and encryption Encryption key length from 8-bits to 128-bits maximum Persistent Flash memory--for BD Address and radio parameter storage ACL (Asynchronous Connection Less) packet types (DM1, DH1, DM3, DH3, DM5, DH5, 2-DH1, 2-DH3, 2-DH5) Point to point support Park, sniff, and hold modes--fully supported to maximum allowed intervals (see Appendix B: ) Master slave switch--supported during connection and post connection Dedicated inquiry access code--for improved inquiry scan performance Dynamic packet selection--channel quality driven data rate to optimize link performance Dynamic power control--interference reduction and link performance Bluetooth test modes--per Bluetooth v2.0 specification 802.11b/g co-existence--AWMA and AFH Vendor specific HCI commands--to support device configuration and certification test modes
7.2
Upper layer stack: amp'ed UP

SPP, SDAP, GAP protocols RFComm, SDP, and L2CAP supported
7.3
AT command set: abSerial
Please see Appendix B: abSerial reference guide for details
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Hardware design
SPBT2532C2.AT
8
Hardware design
Notes:

All unused pins should be left floating; do not ground. All GND pins must be well grounded. Traces should not be routed underneath the module.
8.1
Component drawing
Figure 4. Pin placement
Figure 5.
Ground plane diagram
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Hardware design
8.2
UART interface
The UART is compatible with the 16550 industry standard. Four signals are provided with the UART interface. The TXD and RXD pins are used for data while the CTS and RTS pins are used for flow control. Figure 6. Connection to host device
8.3
Typical circuit
Figure 7. Typical RS232 circuit
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Soldering
SPBT2532C2.AT
9
Soldering
Soldering phase has to be executed with care: In order to avoid undesired melting phenomenon, particular attention has to be taken on the set up of the peak temperature. Here following some suggestions for the temperature profile based on IPC/JEDEC J-STD-020C, July 2004 recommendations. Table 7. Soldering Profile feature Average ramp up rate (TSMAX to TP) Preheat Temperature min (TS min) Temperature max (TS max) Time (tS min to tS max) (tS) Time maintained above: Temperature TL Time tL Peak temperature (TP) Time within 5 C of actual peak temperature (tP) Ramp down rate Time from 25 C to peak temperature Figure 8. Soldering PB-free assembly 3C / sec max
150 C 200 C 60-100 sec
217 C 60-70 sec 240 + 0 C 10-20 sec 6 C / sec 8 minutes max
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Certifications
Appendix A
A.1
Certifications
FCC compliance
FCC licensing is dependent on final antenna implementation. Many tests do not need to be repeated for final compliance and certification.
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SPBT2532C2.AT
Appendix B
The appendix describes an embedded application that provides a serial cable replacement service using the Bluetooth serial port profile.
B.1
Purpose
This document provides a detailed description of each command supported by the AT command interface, (abSerial) SW developed by Amp'edRF. Figure 9. SW developer
Each description explains parameters and the expected behaviors of each command and response. Errors responses are also detailed in this document. To provide feedback or to request assistance on abSerial commands please contact abserial.support@st.com
B.2
Definitions and acronyms
The following acronyms are used in this document. Table 8.
Term ASCII BD DCD DTE DTR DUN GPIO LAN PIN SPP UART
Definitions and acronyms
Description/Meaning American standard code for information Interchange, a standard describing encoding of characters; the use in this document is strictly US 7-bit Bluetooth device Modem signal "data carrier detect"; indication from a modem that a connection has been made through, for example, a dialup connection Data terminal entity, e.g., a computer Modem signal "data terminal ready"; indication to a modem that the data terminal is ready for a connection Dialup networking (profile) General purpose input-output Local area network Personal identification number Serial port profile Universal asynchronous receiver-transmitter
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B.3
Overview
This chapter gives a basic overview of the abSerial interface. For further information, please refer to the abserial user guide.
B.4
abSerial interface overview
abSerial is a cable replacement application that provides point-to-point communication between two Bluetooth devices. A serial port is used to communicate with a host device through an AT command interface as shown below. Figure 10. Communications between hosts
Host Device ATCmds
Bluetooth Device
Bluetooth Device
abSerial provides the following basic features:

Point-to-point connection - abSerial only supports a connection with one device at a time. Optional MultiPoint applications are available upon request Serial port profile - SPP is supported with abSerial for both Client and Server application. Optional dial up networking - DUN profile support for Client applications (DUN Server is not currently supported). Optional OBEX profiles are available upon request Command and bypass modes - it is possible to switch between command and bypass (data transmit/receive) modes during an active connection Security - Bonding and data encryption provides a secure link between two devices. Multiple device bonding - special security keys can be exchanged with multiple devices to allow different devices to securely connect with abSerial. Power conservation - use of the sniff feature to minimize power consumption. Variable baud rates - the serial port can be configured for the following baud rates: 1200, 2400, 4800, 9600, 19.2k, 38.4k, 57.6k, 115.2k (default), 230.4k, 460.8k, 921.6k
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B.5
Factory defaults

The follow factory defaults are typically shipped with our standard products. Customized defaults may be ordered upon request. UART: 115200 baud, no parity, 1 stop bit, 8 data bits Local name: "Amp'ed UP!" Class of device: misc device Profile: SPP (serial port profile) Service name: "AMP-SPP" Deep sleep: disabled Page and inquiry scan: 1.28 s interval, 11 ms duration Security: disabled Bonding PIN: "1234" Bonding allowed: always enabled
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Commands
Appendix C
Commands
This chapter details the each of the abSerial AT commands including brief descriptions of behavior, syntax of the command, context of the command, and types of responses. This abSerial reference guide covers the following commands: Table Key:
- command is supported in this release
X - command not supported in this release Table 9. abSerial command summary
Command Bond Build Bypass ChangeBaud ChangeDefaultBaud DefaultLocalName DeleteSmartCable DisableBond Discovery DunConnect DunDisconnect EnableBond EraseBondTable ExitPart ExitSniff GPIOConfig GPIORead GPIOWrite Hold HostEvent LocalName Park RemoteCommand RemoteCmdDisconnect Reset abSerial v1.1 x x
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Commands Table 9. abSerial command summary (continued)
Command Security SmartCableSetup Sniff SPPConnect SPPDisconnect StreamingSerial UpdateInquiryScan UpdatePageScan Version abSerial v1.1
SPBT2532C2.AT
The following subsections describe each of these commands in detail, including a description of behavior, syntax (including possible parameter values), and types of responses. Some responses will not be "immediate". Where applicable, these will be noted and will include an approximate delay before response. For commands with optional parameters, all possible forms will be listed under the syntax subsection. Error responses are described in Appendix D error responses.
C.1
Bond
The Bond command is used to initiate bonding with a specified device. A personal identification number (PIN) is also required with this command.
C.1.1
Syntax
AT+AB Bond [BD addr] [PIN] Where [BD addr] is the BD Address of the remote device with which to bond and [PIN] is the PIN code to use (up to 16 characters).
C.1.2
Responses
If the request is successfully submitted, the response is: AT-AB BondPending [BD addr] If the operation is successful, the response is: AT-AB BondOk If the operation fails, the response is: AT-AB BondFail
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Commands
C.2
Build
The version command is used to return the current version of the abSerial interface.
C.2.1
Syntax
AT+AB Build
C.2.2
Responses
If the operation is successful, the response is: AT-AB abSerial Build [date] where [date] is the date code of the application firmware.
C.3
Bypass
The Bypass command is used to return the abSerial interface to the bypass mode, if a connection is still available. The possible use for this is to change a setting after a connection has been made (such as the UART baud rate). If the abSerial interface does not have a connection, it will respond as if the connection is down.
C.3.1
Syntax
AT+AB Bypass
C.3.2
Responses
If a connection is still available, the response is: AT-AB -BypassModeIf there is currently no connection, the response is: AT-AB ConnectionDown
C.4
ChangeBaud
The host sends the ChangeBaud command in order to change the local UART speed to a new speed identified by the host. This setting will only remain in effect during the current session - until reset.
C.4.1
Syntax
AT+AB ChangeBaud [rate]
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Commands where [rate] is the new baud rate:

SPBT2532C2.AT
1200 2400 4800 9600 19,200 38,400 57,600 115,200 230,400 460,800 921,600
C.4.2
Responses
If the change is accepted, the response is: AT-AB Baudrate Changed The actual change will not occur until the response has been completely transmitted.
C.5
ChangeDefaultBaud
The host sends the ChangeDefaultBaud command in order to change the default UART speed to a new speed identified by the host. This command is used to override the default baud rate from the Dynamic Configuration script so that the device does not require reprogramming to update this setting. The new baud rate is updated permanently until the device is either re-programmed or another ChangeDefaultBaud command is issued. The baud rate specified in the command will not take effect until the device is reset. To change the baud rate of the current session, use the ChangeBaud command.
C.5.1
Syntax
AT+AB ChangeDefaultBaud [rate] where [rate] is the new baud rate:

1200 2400 4800 9,600 19,200 38,400 57,600 115,200 230,400 460,800 921,600
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C.5.2
Responses
If the change is accepted, the response is: AT-AB Baudrate Changed
C.6
DefaultLocalName
The DefaultLocalName command is used to set the name of the device to the name that is reported during device discoveries. By default, the abSerial interface uses "Amp'edBTDevice". Changing the name using this command will permanently change the local name, unlike the LocalName command.
C.6.1
Syntax
AT+AB DefaultLocalName [name] Where [name] is a string for the new local name (up to 50 characters). The space character is allowed; the name is assumed to be all text up to the end of the command.
C.6.2
Responses
If the operation is successful, the response is: AT-AB LocalNameOk
C.7
DeleteSmartCable
The DeleteSmartCable command removes the current Smart Cable settings that were entered using the SmartCableSetup command, but not the setting from the dynamic configuration. The Smart Cable will then be deactivated for the remainder of this session. Upon reset, if a dynamic configuration for a Smart Cable exists, it will be activated. If there is no dynamic configuration Smart Cable setup, then this feature will remain deactivated.
C.7.1
Syntax
AT+AB DeleteSmartCable
C.7.2
Responses
If the operation is successful, the response is: AT-AB DeleteSmartCableDone
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Commands
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C.8
DisableBond
The DisableBond command is used to disallow new bonding with a device. This command cannot be used while a connection is active.
C.8.1
Syntax
AT+AB DisableBond
C.8.2
Responses
If the operation is successful, the response is: AT-AB BondDisabled
C.9
Discovery
The Discovery command is used to initiate a device discovery. The command will return the number of responses of nearby devices and then the individual responses with BD address, name of device. The number of devices returned is limited to 10. Inquiry is performed with an interval of 10.24 seconds. The devices are reported in the same order as the original inquiry results.
C.9.1
Syntax
AT+AB Discovery AT+AB Discovery [CoD] AT+AB Discovery [CoD] [profile] [include service enable/disable]
C.9.2
Responses
When the discovery command has been accepted, the response is: AT-AB InqPending Once the initial inquiry is complete and discovery has been started, the response is: AT-AB DiscoveryPending [num] where [num] is the number of devices found, in decimal (up to 10 will be reported). For each name or service name request that is successful, the response uses the returned names in the following format. AT-AB Device [BD addr] [name] AT-AB Device [BD addr] Unknown
C.10
DUNConnect
The DUNConnect command is used to initiate a connection with the specified device. The remote BD address must be specified. The remote Service is optional. If not specified, the first registered DUN service will be used by default.
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Commands
C.10.1
Syntax
AT+AB DUNConnect [BD Addr] [Service] Where [BD Addr] is the remote devices BD Address to page. [Service] is the specific service on the remote device; optional.
C.10.2
Responses
If the connection is successful, the response is: AT-AB ConnectionUp AT-AB -BypassModeIf the connection cannot be completed, the response is: AT-AB DUNConnectionClosed
C.11
DUNDisconnect
The DUNDisconnect command is used to terminate a connection with the remote device.
C.11.1
Syntax
AT+AB DUNDisconnect
C.11.2
Responses
If the connection is successful, the response is: AT-AB DUNConnectionClosed
C.12
EnableBond
The EnableBond command is used to enable bonding with another device. The BD Address, PIN and timeout parameters are optional. When no BD Address is specified, requests from all BD Addresses are allowed. If a BD Address is specified, bonding requests from devices with BD Addresses other than the one specified will fail and the existing link key will be deleted for that device. Optionally, a PIN code may be entered with this command. If no PIN code is specified, the default PIN code will be used. The default PIN code is either the last 4 digits of the device's BD address or the dynamically configured PIN code, depending on the default PIN selection in the dynamic configuration file. Also, a timeout value, in seconds, may be entered after the PIN code. Bonding will be disabled automatically after the requested timeout. If no timeout is specified, bonding is enabled until reset or until the DisableBond command is used. If this command is issued multiple times, only the last PIN and BD address are saved. Also, if this command is issued before the first timeout occurs, the subsequent command will extend the timeout. The timeout is always set to the specified time beyond the last received EnableBond.
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Commands
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C.12.1
Syntax
AT+AB EnableBond AT+AB EnableBond [BD addr] AT+AB EnableBond [BD addr] [PIN] AT+AB EnableBond [BD addr] [PIN] [timeout] Where [BD addr] is the BD Address of the remote device with which to bond, [PIN] is the PIN code to use (up to 16 characters), and [timeout] is the duration of the timeout in seconds (1 to 14,400, in decimal).
C.12.2
Responses
If the operation is successful, the response is: AT-AB BondEnabled If bonding has been initiated by a remote device, the notification is: AT-AB BondPending [BD addr] where [BD addr] is the BD address of the remote device that initiated the bonding. If bonding has occurred, the notification is: AT-AB BondOk [BD addr] where [BD addr] is the BD address of the remote device with successful bonding. If bonding was initiated by a remote device but failed, the notification is AT-AB BondFail When the time limit for bonding has expired, the notification is AT-AB BondDisabled
C.13
EraseBondTable
The EraseBondTable command is used to erase all of the bonded device entries. Single devices cannot be erased with this command
C.13.1
Syntax
AT+AB EraseBondTable
C.13.2
Responses
If the operation is successful, the response is: AT-AB BondTableErased
C.14
ExitPark
The ExitPark command is used to switch a device from park mode to active mode.
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C.14.1
Syntax
AT+AB ExitPark [BD address] Where [BD address] is the BD address of the device to be switched to active mode.
C.14.2
Responses
If the operation is successful, the response is: AT-AB ActiveMode
C.15
ExitSniff
The ExitSniff command is used to switch a device from sniff mode to active mode.
C.15.1
Syntax
AT+AB ExitSniff [BD address] Where [BD address] is the BD address of the device to be switched to active mode.
C.15.2
Responses
If the operation is successful, the response is: AT-AB ActiveMode
C.16
GPIOConfig
The GPIOConfig command is used to configure a GPIO pin to input or output.
C.16.1
Syntax
AT+AB GPIOConfig [GPIO Pin] [Configuration] Where [GPIO Pin] is the Pin number, 1 - 4, of the desired GPIO to configure. [Configuration] is i or I for input and o or O for output.
C.16.2
Responses
If the operation is successful, the response is: AT-AB GPIOConfigDone
C.17
GPIORead
The GPIORead command is used to read a GPIO pin. A GPIO may be read while configured as either an input or output.
C.17.1
Syntax
AT+AB GPIORead [GPIO Pin]
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Commands
SPBT2532C2.AT Where [GPIO Pin] is the Pin number, 1 - 4, of the desired GPIO to read.
C.17.2
Responses
If the operation is successful, the response is: AT-AB GPIOReadDone [result] Where [result] is either a 1 to indicate high, or 0 to indicate low.
C.18
GPIOWrite
The GPIOWrite command is used to set a GPIO pin to high or low. A GPIO may only be set when configured as an output.
C.18.1
Syntax
AT+AB GPIOWrite [GPIO Pin] [Setting] Where [GPIO Pin] is the Pin number, 1 - 4, of the desired GPIO to read. [Setting] is a 1 to set a pin to high and a 0 to set a pin to low.
C.18.2
Responses
If the operation is successful, the response is: AT-AB GPIOWriteDone
C.19
Hold
The Hold command is used to switch a device from active mode to hold mode.
C.19.1
Syntax
AT+AB Hold [BD address] [Hold Duration] Where [BD address] is the BD address of the device to be switched to active mode. [Hold Duration] is given in slots from 4-10,000.
C.19.2
Responses
If the operation is successful, the response is: AT-AB HoldMode
C.20
HostEvent
The HostEvent command is used to enable/disable the host notification strings. This will override the default setting in the dynamic configuration only for the current session; until reset.
C.20.1
Syntax
AT+AB HostEvent [Enable/Disable]
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Commands
Where [Enable/Disable] is an e or E character to enable this parameter and a d or D character to disable it.
C.20.2
Responses
If the feature is successfully enabled, the response is: AT-AB HostEvent Enabled If the feature is successfully disabled there is no response because the events have been disabled.
C.21
LocalName
The LocalName command is used to set the name of the device to the name that is reported during device discoveries. By default, the abSerial interface uses Amp'edBTDevice. Changing the name using this command does not permanently change the local name.
C.21.1
Syntax
AT+AB LocalName [name] Where [name] is a string for the new local name (up to 50 characters). The space character is allowed; the name is assumed to be all text up to the end of the command.
C.21.2
Responses
If the operation is successful, the response is: AT-AB LocalNameOk
C.22
Park
The Park command is used to switch a device from active mode to park mode.
C.22.1
Syntax
AT+AB Park [BD address] [Beacon Period] Where [BD address] is the BD address of the device to be switched to active mode. [Beacon Period] is given in slots from 200-10,000.
C.22.2
Responses
If the operation is successful, the response is: AT-AB ParkMode
C.23
RemoteCommand
The RemoteCommand command is used to enable/disable the remote command mode. This setting is stored in persistent memory, and will be retained after each reset. Additionally, the new setting will take effect upon the next device reset.
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Commands
SPBT2532C2.AT
C.23.1
Syntax
AT+AB RemoteCommand [Enable/Disable] Where [Enable/Disable] is an e or E character to enable this parameter and a d or D character to disable it.
C.23.2
Responses
If the feature is successfully applied, the response is: AT-AB RemoteCommand [Enabled/Disabled]
C.24
RemoteCmdDisconnect
The RemoteCmdDisconnect command is used to disconnect a remote command connection. This command only applies to the server side of the link; the remote device. The client or local device, if using the abSerial interface, should use a SPPDisconnect command since it is not in Remote Command mode.
C.24.1
Syntax
AT+AB RemoteCmdDisconnect
C.24.2
Responses
If the operation is successful, the response is: AT-AB RemoteCmdModeClosed
C.25
Reset
The Reset command is used to reset the abSerial interface. This is provided in the event that a host application wants to perform a software reset for error recovery. There is a response prior to reset to verify the command was received by the abSerial interface.
C.25.1
Syntax
AT+AB Reset
C.25.2
Responses
If the operation is successful, the response is: AT-AB ResetPending
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Commands
C.26
Security
The Security command is used to set the security level of the device in use. By default, security level none is used.

Variable pin type (the pincode request event will always be received by the application from the stack), and 128-bit unit key.
Service level security, level 2, is not currently supported. The security setting is not preserved in non-volatile memory.
C.26.1
Syntax
AT+AB Security [level] where [level] is the type of security to use:

None Link (default)
C.26.2
Responses
If the operation is successful, the response is: AT-AB SecurityOk
C.27
SmartCableSetup
The SmartCableSetup command is used enable and configure a Smart Cable device. A device's BD Address is specified with which to automatically establish a connection; replacing the need for AT connection commands. This command will override the dynamic configuration of a Smart Cable device until the DeleteSmartCable command is issued; it is saved in non-volatile memory.
C.27.1
Syntax
AT+AB SmartCableSetup [BD address] [Attempts] [Interval] Where [BD address] is the BD address of the remote device to page and attempt to connect. [Attempts] 0 - 999 is the number of pages the will be attempted to the specified device until a connection is successful. A value of 0 will not automatically page the remote device, however, GPIO 7 may be asserted to manually send a page. A value of 1000 will perform unlimited pages until connected. be switched to active mode. [Sniff Interval] is given in slots from 66-10,000. [Interval] 1-1000 is the number of 100ms intervals (0.1sec to 100 sec) between page attempts. This interval is in addition to the amount of time required by the page attempt itself.
C.27.2
Responses
If the operation is successful, the response is: AT-AB SmartCableConfigDone
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Commands
SPBT2532C2.AT
C.28
Sniff
The Sniff command is used to switch a device from active mode to sniff mode.
C.28.1
Syntax
AT+AB Sniff [BD address] [Sniff Interval] Where [BD address] is the BD address of the device to be switched to active mode. [Sniff Interval] is given in slots from 66-10,000.
C.28.2
Responses
If the operation is successful, the response is: AT-AB SniffMode
C.29
SPPConnect
The SPPConnect command is used to initiate a connection with the specified device. The remote BD address must be specified. The remote Service is optional. If not specified, the first registered SPP service will be used by default.
C.29.1
Syntax
AT+AB SPPConnect [BD Addr] [Service] Where [BD Addr] is the remote devices BD Address to page. [Service] is the specific service on the remote device; optional.
C.29.2
Responses
If the connection is successful, the response is: AT-AB ConnectionUp AT-AB -BypassModeIf the connection cannot be completed, the response is: AT-AB SPPConnectionClosed
C.30
SPPDisconnect
The SPPDisconnect command is used to terminate a connection with the remote device.
C.30.1
Syntax
AT+AB SPPDisconnect
C.30.2
Responses
If the connection is successful, the response is AT-AB SPPConnectionClosed
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Commands
C.31
C.31.1
StreamingSerial
Syntax
AT+AB StreamingSerial [Enable/Disable] Where [Enable/Disable] is an e or E character to enable this parameter and a d or D character to disable it.
C.31.2
Query
An alternative syntax may be used to query the current StreamingSerial feature status. This syntax is not supported by other commands. AT+AB StreamingSerial
C.31.3
Responses
If the feature is successfully applied or queried, the response is: AT-AB StreamingSerial [Enabled/Disabled]
C.32
UpdateInquiryScan
The UpdateInquiryScan command is used to modify the Inquiry scan parameters: mode, duration, and interval.
C.32.1
Syntax
AT+AB UpdateInquiryScan [mode] [duration] [interval] where[mode] is the discoverable mode:

0: non-discoverable 1: limited discoverability - not supported 2: discoverable
[duration] is the scan length in slots; 18 to 4096. The default duration is 18 slots. [interval] is the period between scans in slots; 18 to 4096. The default interval is 2048 slots
C.32.2
Responses
If the command is successful, the response is: AT-AB InquiryScanUpdateDone
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Commands
SPBT2532C2.AT
C.33
UpdatePageScan
The UpdateInquiryScan command is used to modify the Page scan parameters: mode, duration, and interval.
C.33.1
Syntax
AT+AB UpdatePageScan [mode] [duration] [interval] Where [mode] is the connectable mode:

0: non-connectable 1: connectable
[duration] is the scan length in slots; 18 to 4096. The default duration is 18 slots. [interval] is the period between scans in slots; 18 to 4096. The default interval is 2048 slots
C.33.2
Responses
If the command is successful, the response is: AT-AB PageScanUpdateDone
C.34
Version
The Version command is used to return the current version of the abSerial interface.
C.34.1
Syntax
AT+AB Version
C.34.2
Responses
If the operation is successful, the response is: AT-AB abSerialVer [x.y] where [x.y] is the current version of the abSerial Interface.
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Error responses
Appendix D
Error responses
This chapter details the error responses that occur under specific circumstances. There are seven error responses that can occur beyond error responses specific to a particular command (e.g., Discovery). They are:

ErrConnect ErrExecution ErrFormat ErrInProgress ErrInvalidParam ErrNumParam ErrUnknownCmd
The following subsections detail the different error responses. These error responses replace the original error response AT-AB ErrorCommand
D.1
ErrConnect
The ErrConnect error response will be sent if abSerial has a valid connection established and the command cannot be executed while connected (even in the command mode). Examples of commands that produce this error response are given in the following table. Table 10. Example commands that generate
Example AT+AB security none AT+AB discovery AT+AB SPPConnect 00043e000000 Reason Changing security level while a connection is up. Performing a device discovery while a connection is up. Establishing a connection to a device while a connection is exists with another.
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Error responses
SPBT2532C2.AT
D.2
ErrExecution
The ErrExecution error response will be sent if the command cannot complete for any reason. Examples of commands that produce this error response are given in the following table. Table 11. Example commands that generate
Example AT+AB security none AT+AB discovery Reason Execution of command with correct syntax failed Execution of command with correct syntax failed
D.3
ErrFormat
The ErrFormat error response will be sent if abSerial receives a command (text terminated by a carriage return or line feed) that does not match the expected format of starting with AT+AB . Examples of commands that produce this error response are given in the following table. Table 12. Example commands that generate
Example AT-AB Discovery SPPConnect 00043e000000 abcdef Reason A valid command name that does not start with the right prefix. A command does not start with AT+AB A command does not start with AT+AB
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Error responses
D.4
ErrInvalidParam
The ErrInvalidParam error response will be sent if the parameters for the requested command are not correct. The parameter(s) will be echoed back to the user starting from the parameter that was rejected. Examples of commands that produce this error response are given in the following table. Table 13. Example commands that generate
Response Reason
Example AT+AB SPPConnect 8136
Numeric parameter not specified with required AT-AB ErrInvalidParam 8136 number of digits (BD address must always be 12 hex characters).
AT+AB SPPConnect Unrecognized (or unsupported) symbolic AT-AB ErrInvalidParam goep 00043e008136 GOEP parameter used. AT+AB ChangeBaud Numeric parameter is out of range (specified AT-AB ErrInvalidParam 1600 1600 baud rate is not supported by command). AT+AB EnableBond 00043e000000 12345678901234567 AT-AB ErrInvalidParam 12345678901234567 String parameter (PIN)has too many characters.
D.5
ErrNumParam
The ErrNumParam error response will be sent if there are too few parameters for the requested command. A command sent with too many parameters does not generate an error; instead, the extra parameters are ignored.
Warning:
Some commands will accept a variable number of parameters.
Examples of commands that produce this error response are given in the following table. Table 14. Example commands that generate
Example AT+AB Security AT+AB Sniff Reason No parameters were specified. The minimum number of parameters was not specified.
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Error responses
SPBT2532C2.AT
D.6
ErrUnknownCmd
The ErrUnknownCmd error response will be sent if the requested command is not recognized. The unrecognized command will be echoed back to the host. Any parameters given will be ignored. AT-AB ErrUnknownCmd [unrecognized command] An accepted command always starts with the command identifier: AT+AB
D.7
ErrInProgress
ErrInProgress is sent in response to Discovery command being issued when the previous one is still in progress. AT+AB Discovery [unrecognized command] Examples of commands that produce this error response are given in the following table: Table 15. Example commands that generate
Reason
Example AT+AB Discovery
Trying to do discovery when the previous one has not completed.
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Error responses
D.8
Commands and associated errors
The table below summarizes which of the commands produce specific error responses. If a command can produce an error response, the column will be marked with an X.
Table 16.
Possible ErrConnect error responses
ErrInvalidParam X ErrNumParam X ErrExecute X ErrConnect ErrInProgress
Example Bond Build Bypass ChangeBaud ChangeDefaultBaud DefaultLocalName DeleteSmartCable DisableBond Discovery DUNConnect DUNDisconnect EnableBond EraseBondTable ExitPark ExitSniff GPIOConfig GPIORead GPIOWrite Hold LocalName Park RemoteCmdDisconnect Reset Security SmartCableSetup Sniff SPPConnect SPPDisconnect UpdateInquiryScan UpdatePageScan Version
X X
X X X X
X X
X X
X X
X
X
X
X
X X X X X X X X X X X X
X X
X X X
X X X X
X X X X
X
X X
X X
X X
X X
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Other responses
SPBT2532C2.AT
Appendix E
Other responses
The following subsections describe the 4 types of responses that occur under specific circumstances, not necessarily as a result of a specific command. They are:

Reset Escape sequence Controlled disconnect Unexpected disconnect
E.1
Reset
Upon either hardware reset or software reset (such as the Reset command), abSerial will respond as follows after the reset is complete: AT-AB -CommandModeAT-AB BDAddress [BD addr] Because the BD address of the local device is reported during this response, the response is different than a response to the Escape Sequence.
E.2
Escape sequence
If the Escape sequence, ^#^$^%, is received and no connection is active, abSerial will immediately respond with: AT-AB -CommandModeWhen the Escape Sequence is received while a connection is still active and there is no data for 2 seconds, abSerial will respond (after those 2 seconds of no data) with the same string. abSerial will now be in command mode.
E.3
Controlled disconnect
If the local host initiates a disconnect, it must first put the abSerial interface into command mode (see the section on Escape Sequence directly above). After a successful disconnect command, the following response is made: AT-AB ConnectionDown
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Other responses
E.4
Unexpected disconnect
Bluetooth connections may be unexpectedly dropped (e.g., in changing RF conditions). Although it is generally assumed that a disconnect will be negotiated on the application level, the remote device may initiate a disconnect. When that happens, the disconnect may be unexpected. This section applies to both the general case and the unexpected disconnect. It is useful for the local host to be notified that a connection has been terminated when it isn't controlling the termination. An unexpected disconnect is essentially defined as a disconnect that occurs while in bypass mode. If this happens, abSerial will respond with: ###NO CARRIER AT-AB -CommandModeIt is the responsibility of the host to prevent this string from appearing in the data stream during normal operation. If a remote disconnect occurs during command mode, this notification string is also sent. It will not be sent, however, if an initial setup cannot be established or if the disconnect is requested by the local device. Hardware handshaking is not used to indicate a disconnection in this implementation. Modems can use DCD (data carrier detect) to notify the DTE (data terminal entity, e.g., computer) that a connection is either available or unavailable.
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Ordering information scheme
SPBT2532C2.AT
Ordering information scheme
Table 17. Ordering information scheme SPBT
Bluetooth(R) modules
2532
C2
.AT
V2.1 compliant
Class 2
AT command set
Note:
No antenna on board
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Revision history
Revision history
Table 18.
Date 07-Aug-2009 04-Nov-2009 24-Feb-2010
Document revision history
Revision 1 2 3 First release Updated Figure 1, Table 3, Figure 2, Table 6 and Chapter Appendix B Updated Chapter 4, Table 5, Appendix C and Table 9 Changes
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SPBT2532C2.AT
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