ST Microelectronics S R L 16C2 Bluetooth class 2 module User Manual GSBT2416C2DBxxx V01

ST Microelectronics S.R.L. Bluetooth class 2 module GSBT2416C2DBxxx V01

Contents

Users Manual Part I

GSBT2416C2DB.xxx User manual June 2007 FEATURES - Bluetooth V1.2 board - Serial interface on DB9 connector - USB connection - PCB antenna on board - Single 5 V supply voltage - CE compliant - FCC compliant FCC ID: S9N16C2 DESCRIPTION GSBT2416C2DB.xxx is a Bluetooth Class2 Demoboard for GSBT2416C2 Bluetooth module including the RF antenna. Suffix xxx identify the Firmware release : no suffix for HCI commands and AT1 for AT commands. GSBT2416C2DB. is a board with a downloaded FW which enables the user to to interface the Bluetooth module with HCI commands. GSBT2416C2DB.AT1 is a board with a downloaded FW which enables the user to create a Bluetooth link with simple AT commands. AT commands are sent by means the serial line which is accessible by the DB9 connector. SPBT2425C2DB.xxx board can be supplied by an external 5V DC source or via the USB port 1 - RECOMMENDED OPERATING CONDITIONS Symbol Parameter Conditions Min Typ Max Unit VDD Board Supply voltage -20°C < T < 70°C 4 5 6 V Tstg Operating ambient temperature -20 +70 °C
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 2/13 2 - I/O CONNECTIONS DESCRIPTION 1 Boot signal - If connected to GND the module can perform the dowloading – see also JP1 J1 2 Reset signal - A low level on this pin force the module in reset state - see also S3 J2 USB Port When the USB port is connected , the 5V USB is used ( by the 3.3V regulator) to supply the BT module and the board itself When USB port is used do not supply an ext. 5V to J4 power plug USB port is not used for AT version J3 Serial line port ( DB9 male connector) On board is present a level translator to adapt the BT module digital levels to the RS232 standard levels. J4 Vcc Power supply plug ( 5V ) When 5v input is used on J4 plug do not connect USB port 1 GPIO 15 2 GPIO 14 3 GPIO 13 4 GPIO 12 5 GPIO 11 6 GPIO 10 7 GPIO 9 8 GPIO 8 9 GPIO 7 10 GPIO 4 11 GPIO 3 12 GPIO 2 J5 13 GPIO 0 JP1 Boot If connected to GND the module can perform the dowloading JP2 DB9 connector connection – see electrical drawing JP3 DB9 connector connection – see electrical drawing JP4 DB9 connector connection – see electrical drawing JP5 DB9 connector connection – see electrical drawing JP6 DB9 connector connection – see electrical drawing S1 N.O. push button connected to BT module GPIO6; when activated a Low level is applied to GPIO6 otherwise GPIO6 is at High level. Not used for AT commands version S2 Switch connected to GPIO3 ( 10 KΩ pullup to 3.3V) In AT version this switch is used to select Command / Data mode S3 Reset – Push button acting on the module reset pin L1 LED connected to BT module GPIO1 . On AT version this led shows when a Bluetooth connection is ON (led ON ) L2 LED showing the presence of the 3.3V internal voltage – Bluetooth module supply voltage
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 3/13 3 - BOARD LAYOUT
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 4/13 JP4PC_RTSJP5JP3PC_RXPC_CTS J3594837261PC DTRJP6GNDPC DSRJP2C122u6.3VGPIO5J2USB CON.1234GPIO1L1GREEN R2470 OhmR110KGPIO6S1C11NMD1 BYV10-60Vext+5VGNDJ4PLUG132C6100n+3.3VU4 ST3232C1- 3C2+ 4C2- 5V- 6T2out 7R2in 8R2out9T2in10GND15T1out14C1+ 1T1in11V+ 2R1in13R1out12Vcc16PC_TXC8 100nC10 100nC7100nU2 74V1G66CTRI/O1O/I2GND3C4Vcc 5C9100nRESETBOOTJ112+3.3VBT1BLUETOOTH MODULE GS-BT2416C2GPIO025GPIO126GPIO227GPIO328GPIO429GPIO530GPIO631GPIO732GPIO833GPIO934GPIO1135GPIO1036GPIO1237GPIO1338GPIO1439GPIO1540 (JTAG1) TD I 1(JTAG4) TDO 4(JTAG2) TMS 2(JTAG0) NTRST 3(JTAG3) TCK 5(I2C_DAT) I2C0 7(I2C_CLK) I2C1 8INT1 6PCM_SYNC 10PCM_CLK 9PCM_A 12PCM_B 11USB_DN 21USB_DP 22(UART_RX) RXD 13(UART_TX) TXD 14(UART_CTS) CTS 15(UART_RTS) RTS 16SPI_FRM 17SPI_CLK 18SPI_TXD 19SPI_RXD 20VIN (VDDIO)41GND42RESET 23BOOT 24RF-GND43ANT44RF-GND45L2GREENR4470 OhmC5100nJ512345678910111213ANT1ANTENNA BLUETOOTHJP1GPIO5NM = NOT MOUNTED+3.3VS3R310K+3.3VDataCommandS2213U1 LD2985BM33RVin 1GND 2By Pass4Vout5INHIBIT 3USB +5VFOR INTERNAL FLASHPROGRAMMINGC310u6.3VUSB (D-)USB (GND)USB (D+)USB (Vcc)C12 39pFC210nU3 USBUF01W6D11GND2D23D3 43.3V 5D4 6C4100n+3.3V 4 - ELECTRICAL DRAWING
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 5/13 5 - DOWNLOADING GSBT2416C2DB.xxx has also the possibility to be downloaded with a file developed by the user To download a file into GSBT2416C2DB the below items must be followed: - connect the board to a PC by means a RS232 cable connected on COM1 / COM2 - put a jumper on JP1 ( Boot pin to low level) - connect the power supply cable to the board at +5V ext Vin - open the “Flash loader “ program - choose UART on Transportation layer section - choose the appropriate COM1 / COM2 port - choose the firmware to be downloaded on “Firmware “ section - press start : on the dialog bar will appear “ reset the board” - power the board ( a reset is generated) : on the dialog bar will appear the % of the downloading.
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 6/13 6 - CERTIFICATIONS 6.1 - CE Measurements have been performed in accordance with ( report available on request): EN 300 328 V 1.6.1 (2004-11) : “ Electromagnetic compatibility and radio spectrum Matters (ERM); Wideband Transmission Systems; Data transmission equipment operating in the 2.4GHZ ISM band and using wide band modulation techniques; Harmonized EN covering essential requirements under article 3.2 of the R&TTE directive” EN 301 489-17 V 1.2.1 :2002: “ Electromagnetic compatibility and radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services ; Part 17: Specific condition for 2.4GHz wideband transmission systems and 5 GHz High performance RLAN equipment.” EN 60950-1 : “Information technology equipment -Safety –Part 1 : General requirements “ 6.2 - FCC To get compliance with FCC CFR47 part15 the following tests have been performed: CFR47 part 15 section Title Result 15.203 15.247 (b) (4) (i) Antenna requirements pass 15.247 (a) Conducted emission pass 15.209 (a) (f) Radiated emission pass 15.247 (a) Frequency hopping –Spread Spectrum Spec pass 15.247 (b) Maximum Peak Output power pass 15.247 (d) 100 kHz Bandwidth of Frequency Band Edges pass 15.247 (d) Conducted emission pass 15.247 (e) Power Spectral density pass 15.247 (g) FHSS transmission characteristics pass 15.247 (i) (§47CFR1.1307 (b)(1)) RF Humane exposure pass This board has the following FCC ID: FCC ID:S9N16C2
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 7/13 FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna - Increase the separation between the equipment and receiver - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio/TV technician for help. Antenna Our board type GS-BT2416C2DB.xxx is for OEM integrations only. The end-user product will be professionally installed in such a manner that only the authorized antennas are used. Caution Any changes or modifications not expressed approved by the party responsible for compliance could cause the module to cease to comply with FCC rules part 15, and thus void the user’s authority to operate the equipment. Label instruction Module type : Bluetooth class 2 board GSBT2416C2DB.xxx (GSBT2416C2 module + PC 787 carrier board) FCC-ID : S9N16C2 This intends to inform you how to specify the FCC ID of our Bluetooth board GSBT2416C2DB.xxx on your final product. Based on the Public Notice from FCC, the product into which the our transmitter module is installed must display a label referring to the enclosed module. The label should use wording such as “Contains Transmitter module FCC ID: S9N16C2 or “Contains FCC ID: S9N16C2, any similar wording that expressed the same meaning may be use. It shows an example below Contains FCC ID: S9N16C2
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 8/13 Special requirement for Modular application The following requirements are fulfilled: 1) The modular transmitter must have its own RF shielding: The RF module fulfils the emission requirements of the FCC rules without additional shielding. 2) The modular transmitter must have buffered modulation/data inputs: The module has a memory management unit inside of the IC. The processor interfacing with the external application by means general purpose I/O ( GPIO) , Uart, USB, PCM, I2C, SPI. The processor interfaces also the RF part of the module exchanging data and commend with it. Inside the processor a flash memory is available to download the customer application and the Bluetooth profiles. 3) The modular transmitter must have its own power supply regulation: The module contains an own voltage regulation. In case of changes in the supply voltage VCC (for example caused by temperature changes or other effects), the internal voltage will be stabilized. 4) The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204: The RF module is for OEM (Original Equipment Manufacturer) integration only. The end-user product will be professionally installed in such a manner that only the authorized antenna is used. 5) The modular transmitter must be tested in a stand-alone configuration: The RF module was tested in a stand-alone configuration. 6) The modular transmitter must be labelled with its own FCC ID number: The RF module will be labelled with its own FCC ID number. When the module is installed inside the end-product, the label is not visible. The OEM manufacturer is instructed how to apply the exterior label. 7) The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements: The EUT is compliant with all applicable FCC rules. Detail instructions are given in the product Users Guide. 8) The modular transmitter must comply with any applicable RF exposure requirements. - Maximum measured power output: 1,08 mW (0,33 dBm) - Maximum antenna gain: 1 dBi = numeric gain 1,259 (see also FCC test report) Maximum permissible exposure defined in 47 CFR 1.1310: 1 mW/cm². The RF module operates at low power level so it does not exceed the Commission’s RF exposure guidelines limits; furthermore, Spread spectrum transmitters operate according to the Section 15.247 are categorically excluded from routine environmental evaluation.
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 9/13 7 - AT COMMANDS APPENDIX This section is applicable to demoboard with AT command FW downloaded ( GSBT2416C2DB.AT1 ) Purpose of this section is to describe all the necessary steps to establish a connection between two Bluetooth GS-BT2416C2DB.AT1 demo boards in a Serial line /Cable replacement application. ( This connection example is also reported on OBSTFW-101 datasheet, Application Notes (vers 1.6)) SETUP & CONNECT To perform the connection you need two PC and two GS-BT2416C2DB.AT1 boards. Steps to connect. ( please refer to OBSTFW-101v 1.2.1.8 datasheet for the meaning of AT commands) - Fix a GS-BT2416C2DB.AT1 board to be used as “Client” and suppose it has the address 0080E1000001. Hereafter this board will be called “Client” - Fix a GS-BT2416C2DB.AT1 board to be used as “Server” and suppose it has the address 0080E1000002. Hereafter this board will be called “Server” - Connect the Server board to a PC by means a RS232 cable - Connect the Client board to a PC by means a RS232 cable - Open on both the PCs HyperTerminal program and set the communication line with the following parameters: o Select the proper COM line ( COM1, COM2……) o baud rate : 9600 ( default baud rate of GSBT2416C1/AT module) o data bits: 8 o parity : none o stop bits : 1 o flow control : none o In ASCII setup ,set flag line ends with line feed o In ASCII setup , set flag echo characters typed locally - Power with the external 5V the Client board : on the PC screen connected to the Client should appear +READY - Power with the external 5V the Server board : on the PC screen connected to the Server should appear +READY - Configure the Client board by means the following commands: ( GPIO3 Client must be Low to select Command Mode – S2 switch in Command mode) Command Answer AT OK Check module ready AT+BTCMODE=0 OK AT+BTPMODE=1 OK AT+BTDMODE=0 OK Not Discoverable AT+BTSECMODE=1 OK AT+BTENCMODE=0 OK AT+BTNAME=”SPP Client” OK Set client name AT+BTCLASS=52020C OK
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 10/13 - Configure the Server board by means the following commands: ( GPIO3 Server must be Low to select Command Mode– S2 switch in Command mode ) Command Answer AT OK Check module ready AT+BTCMODE=1 OK AT+BTPMODE=1 OK AT+BTDMODE=1 OK Discoverable AT+BTSECMODE=1 OK AT+BTENCMODE=0 OK AT+BTPINCODE=”1234” OK Pin code AT+BTNAME=”SPP Server” OK Set server name AT+BTCLASS=52020C OK AT+BTREGPORT=”SPP port” OK Name of service offered After the Server board configuration , Server board GPIO3 must be put HIGH to select DATA MODE enabling the Server board to receive and transmit DATA. - Inquiry & available Services Before to establish a connection, the Client has to know which Bluetooth devices are present and which services are offered, and therefore the Client: - will perform first the inquiry by the command: AT+BTINQ=xx where xx is the inquiry time (i.e. 10 sec -> AT+BTINQ=10 ) The answer will be a list of present Bluetooth connectable devices, one of the device should be our SPP Server: +BTINQRES:0080E1000002,”SPP Server” OK - and after will ask for which kind of service is available with the command: AT+BTRPORTS=0080E1000002 The answer will be : +BTRPORT:”SPP Port”,1 serial port profile , port 1 (can be 1,2…) OK - Once known the device present, the service offered, the Client finalize the connection with the command : AT+BTCONNECT=0080E1000002,1,”1234”,1,0 OK At this point the connection is established and GPIO1 (indicating the connection status) on both Client and Server boards becomes high. On the GS-BT2416C1AT1 board a led is connected to GPIO1 and therefore the connection is shown also by a led on. GPIO3 on Client board must be now put at HIGH level allowing the Client to send and receive DATA from Server. - Disconnection To disconnect, the Client has to put its GPIO3 LOW ( Command mode) ( the changing from high to low on GPIO3 is signaled on the Client PC screen with +READY) and send the command : AT+BTDISCONNECT OK The result will be the disconnection of the link Client / Server and GPIO1 on both Client and Server boards will return to low ( the leds will go off ).
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 11/13 MACRO INSTRUCTIONS With the version 1.2.1.8 of OBSTFW -101 has been introduced the MACRO concept with the commands AT+BTMACROSTART , AT+BTMACROSTOP and AT+MACROCLEAR. These commands work in such a way that all the commands written between AT+BTMACROSTART and AT+BTMACROSTOP commands will be stored inside the internal flash memory and executed at each power up of the module. Take note that when you insert a command between MACROSTART and MACROSTOP you have not the immediate execution of the command but only the storing in the flash memory, the module will answer with OK or ERROR from a syntax point of view.; execution will be active at the next power on. That means, after the writing of the commands between the two macro commands, the module could work in a stand alone way without the need to program it at each power on. MACROCLEAR command will erase all the commands stored. As an example: suppose to have always the previous modules with final address 01 (client) and 02 ( server) and to know already which connection to get . Write the following sequence of commands in client and server module , after the MACROSTOP command it will be stored into the internal memory of the correspondent module . Client Server AT+BTMACROSTART AT+BTMACROSTART AT+BTCMODE=0 AT+BTCMODE=1 AT+BTPMODE=1 AT+BTPMODE=1 AT+BTDMODE=0 AT+BTDMODE=1 AT+BTSECMODE=1 AT+BTSECMODE=1 AT+BTENCMODE=0 AT+BTENCMODE=0 AT+BTNAME=”SPP Client” AT+BTPINCODE=”1234” AT+BTCLASS=52020C AT+BTNAME=”SPP Server” AT+BTCONNECT=0080E1000002,1,”1234”,10,5 AT+BTCLASS=52020C AT+BTMACROSTOP AT+BTREGPORT=”SPP port” AT+BTMACROSTOP Note that : - As the address module to connect is know , the inquiry command can be omitted - In BTCONNECT command has been set 10 retry at 5 sec interval. After the modules have been programmed, you can power off and power on again the modules themselves; you will see that at a certain point the modules will be connected each other ( led on) without any intervention . Is not important to power on before the server or the client ; the only rule to follow is ,once the client has been powered on, getting the server powered in the time fixed by the 10 retry at 5 sec interval. During the macro execution the module will answer with “OK or “ERROR” for each command executed; if this feedback is not wished ,it can be avoided with the AT+ECHO=OFF command. MODULE BT ADDRESS Each module has its own address which identify the module itself in the network; for the above examples have been always taken in consideration addresses 0080E1000001 and 0080E1000002. Modules on GS-BT2416C1AT1 board could have different addresses ; before to start sending commands, the module address can be found with the command AT+BTSETTINGS=? which will show the relevant information of the module including the BT address.
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 12/13 POINT to POINT CONNECTION Modules with AT commands firmware can only perform point to point connection which means only a connection per time can be activated. A module can be connected with several other modules but it has to disconnect the previous connection before to activate a new one. Suppose to have a Client C1 which need to connect with Server S1,S2,..Sn : In this case the procedure to follow is the following : - C1 will establish the connection with S1 exchanging the data - C1 will disconnect S1 with the command AT+BTDISCONNECT - C1 will establish the connection with S2 exchanging the data - C1 will disconnect S2 with the command AT+BTDISCONNECT - C1 will establish the connection with Sn exchanging the data… an so on C1 S1 S2 Sn
GSBT2416C2DB.xxx rev. 1.0 18-Jun-07 13/13 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 2007 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com

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