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page 1 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com flexipanel linkmatik 2.0 tm bluetooth 2.0 serial / audio transceiver with auto-connect modes and command interface antenna reset pcms pcmc vss pcmi pcmo esc atn nc vdd rts txd dnc cts rxd dnc dnc dnc dil vss vss vdd atn esc rts rx d pcmo dnc dnc cts pcmi pcmc pcms vss vss res et vdd dnc dnc dnc dnc dnc dnc dnc dnc tx d dnc antenna so (viewed from above) ? auto-slave and auto-master configurations for no-host control, otherwise controlled with simple command set ? connects with up to 4 slaves (command mode only) ? pcm audio profile (command mode only) ? bluetooth 2.0 certified ? fcc / ce certified with integral antenna ? maximum 570 kb/s data rate in serial mode ? end-to-end latency 8-15 ms ? low power: ~25ma transmitting, 370a sleep ? authentication and encryption ? device discovery ? sniff, park and hol d low powe r modes ? hardware flow contro l or no flow control ? bluetooth error correction layer ? class i bluetooth radio, 100m range ? 3.3-5v supply (dil), or 3.3v supply (so) ? wide range of baud rates up to 2.7mbaud (serial port only, not over-the-air) enquire about related products, including: - puck antenna for external mounting - parabolic dishes for directional gain - audio codec summary linkmatik 2.0 is a serial / pcm audio to bluetooth data link. it can be controlled from a host controller using simple commands. linkmatik 2.0 can also operate without a host controller for point-to-point serial connections. auto-slave and auto-master modes allow linkmatik 2.0 to operate a slave, master or wedded pair. linkmatik is shipped in auto-slave mode. the module can be interfaced to many standard bluetooth devices, e.g. laptop computers, pda?s, mobile phones etc. pcm (pulse code modulation) audio connections provide an audio interface when used with a suitable audio codec. linkmatik 2.0 replaces our earlier linkmatik and bluematik products providing an enhanced feature set, faster data rates and substantially lower power. applications ? direct access to pda?s, laptops, mobile phones etc ? wireless audio ? cable replacement ? process control ? robotics manufactured to iso9001:2000 ordering information part no description linkmatik 2 dil class i bluetooth 2.0 transceive r 18pin dual in line package, 3.3v ? 5v linkmatik 2 so class i bluetooth 2.0 tr ansceiver surface mount package, 3.3v
page 2 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com contents p ower c onnections .........................................3 r adio l ink / a ntenna .........................................3 s erial c onnections ..........................................3 o perating m odes ..............................................4 a uto -s lave m ode ..............................................4 a uto -m aster m ode ...........................................4 c ommand m ode .................................................4 c onfiguration c ommands ................................4 sending configurat ion commands ................4 configuring auto-slave mode ........................5 configuring auto-master mode ......................5 setting the b aud rate ....................................5 configuring the bluetooth name ....................5 configuring bluetooth device class .............. 5 set pin code security................................... 5 wedded pairs ................................................ 6 command m ode ............................................ 6 m igration from l ink m atik 1.0 ......................... 6 m igration from b lue m atik 1.0 ........................ 6 b luetooth d evice c lasses ............................. 7 services and major device class.................. 7 minor device class ......................................... 7 example......................................................... 8 m echanical d ata .............................................. 9 t echnical s pecifications .............................. 10 pin connections pin name description atn attention output: in auto-slave and auto-maste r modes, output is high if connected, low if unconnected. in command mode, output is high if serial data on rxd is from a remote device, low if a command mode response. (note 1) esc escape input: a low to high transition causes the module to revert to the mode where it accepts commands rather than transmits transparent data. (note 1) cts clear to send: flow control input to linkmatik 2.0 . when low, linkmatik 2.0 will output data on the txd line. (note 1) dnc do not connect nc not connected pcmc 3.3v pcm audio clock. (note 2) pcmi 3.3v pcm audio input. (note 2) pcmo 3.3v pcm audio output. (note2) pcms 3.3v pcm audio sync. (note 2) reset reset ? low to operate, high for at least 10ms to reset. (note 1, 3) rts flow control output from linkmatik 2.0 . when high, do not send data to linkmatik 2.0 . (note 1) rxd serial data input to linkmatik 2.0. (note 1) txd serial data output from linkmatik 2.0. (note 1) vss power ground reference. vdd 3.3v - 5v power supply (dil version) 3.3v power supply (so version) 1. vdd logic. output highs are v dd. input high must not exceed vdd. 2. 3.3v logic. output highs are 3.3v. input high must not exceed 3.3v. 3. dil module has pull-down resistor and this pin may be left unconnected.
page 3 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com power connections the dil module contains all necessary power supply filtering components. the so module should have a 100nf decoupling capacitor placed between each of the two vdd pins and their adjacent vss pin, close to the module. in addition, a series inductor capable of choking 2.54ghz (approx 10nh) should be placed between the power supply and vdd. the recommended part is murata lqw15an10nj00. vss vin vdd vdd vss vss 100nf 100nf 10nh figure 2. power supply filtering srf > 5.5ghz radio link / antenna the radio is a 2.4ghz class i bluetooth device with an integral antenna. to achieve 100m range, the corresponding bluetooth device must also be class i. there should be no pcb copper or components within 2cm of the antenna. note that the use of an external antenna is not recommended due to coax losses and requirements for recertification. if an external antenna is required because the product is to be housed in a metal enclosure, enquire about our puck antenna housings. these enclose the entire module and permit it to be externally mounted. if an external antenna is required to achieve directional gain, enquire about our dish antenna housing. this encloses the entire module at the focus of a parabolic dish for directional operation. serial connections the serial data default baud rate is 9600 baud standard active low format with 8 data bits, no parity bit and 1 stop bit. hardware flow control is supported. if no flow control is required, rts should be connected to cts. cts and rts can only be used for flow control. since data is buffered inside the bluetooth module, the rts and cts signals are locally generated and do not necessarily correspond to the state of the rts and cts lines at the other end of the link. in auto-slave and auto-master modes, if no connection is indicated on the atn output, any data on the rxd pin will be interpreted as a command. if the device connected to linkmatik cannot suppress serial data when there is no connection, the atn output should be used to clamp the rxd pin high when the device is not connected. an example clamping circuit is shown in figure 3a. (simpler logic circuits would work, but this circuit uses of the same ic as fig 3b.) to convert rxd and txd and, if required, cts and rts, to rs232 levels, a level shifter such as a max232 may be used. to convert the serial data lines rxd and txd to rs485 signals, an rs485 transceiver such as a max 3082 may be used. this requires a device enable (de) signal whenev er the txd output is active. a suitable monostable circuit to generate de from txd is shown in figure 3b. 1 trig clear q q 2 3 rc 1/2 74hc123 8,14 15 16 13 4 vss vdd atn vdd data in rxd figure 3a. rxd clamping 1k note: data in signal must have sufficient current drive to momentarily override feedback from rc
page 4 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com 9 trig clear q q 10 11 rc 7 8,6 16 1/2 74hc123 5 12 vss for c = 100nf r vdd vdd vss vdd 22k 100nf txd rs485 de rc figure 3b. rs485 driver enable e.g. for 9600 baud, r ~ 27k ) (k 250000 ? = baud r c operating modes there are three operating modes for linkmatik 2.0: ? auto-slave mode, where linkmatik 2.0 allows other devices to connect to it. ? auto-master mode, where linkmatik 2.0 tries to connect to devices it is paired with. ? command mode, where linkmatik accepts instructions from the host. command mode is also used for: - configuring auto-slave and auto-master settings such as baud rates - audio modes - connections to multiple devices linkmatik is shipped in auto-slave mode with the pin code 0000 (four zeroes). auto-slave mode in auto-slave mode, linkmatik 2.0 waits for a remote device to discover and connect to it. no commands are required, and, unless configuration commands are sent, no responses are generated except data from the remote device. the esc input would normally be tied low in auto- slave mode unless configuration commands were to be sent to linkmatik 2.0. the atn output indicates whether the module is in a connected state. the atn output will be set high when a connection is complete and low when there is no connection. if data is sent while the atn is low, it will be interpreted as a command. auto-master mode in auto-master mode, linkmatik 2.0 searches for any device it has in its list of paired devices and connects to the first one it finds. a slave and a master can thus be wedded and require no host control. no commands are required, and, unless configuration commands are sent, no responses are generated except data from the remote device. the esc input would normally be tied low in auto- master mode unless configuration commands were to be sent to linkmatik 2.0. the atn output indicates whether the module is in a connected state. the atn output will be set high when a connection is complete and low when there is no connection. if data is sent while the atn is low, it will be interpreted as a command. command mode in command mode, commands are sent to linkmatik to control it. only those commands required to configure auto-slave and auto-master modes are detailed in this document. refer to the linkmatik 2.0 command reference ds389-1 for complete details about other commands available in command mode, including audio mode commands. configuration commands sending configuration commands to send commands for configuration purposes (as opposed to host control), connect linkmatik to a serial terminal emulator such as windows hyperterminal. commands should be terminated with carriage return and linefeed characters. if required, flexipanel?s pixie config tool can be used to convert between usb and ttl serial signals in order to make the connections. if used to connect to the so module, however, care should be taken to clamp the txd maximum voltage to 3.3v using a circuit such as shown in figure 4. the tool has no flow control, so cts is connected to rts. to ensure all commands take effect, reset linkmatik 2.0. to see a list of all current settings, send the following command: set
page 5 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com gnd (black) pixie config tool rxd (blue) txd (red) txd rxd vss 4k7 linkmatik 2.0 vdd figure 4 - interfacing to pixie config tool rts cts configuring auto-slave mode to configure linkmatik for auto-slave mode, send the following commands: set control autocall set control echo 0 set control cd 4 0 set bt pagemode 4 2000 1 configuring auto-master mode the following commands are used to set up auto- master mode: set control autocall 1101 set control echo 0 set control cd 4 0 set bt pagemode 0 2000 1 in auto-master mode, linkmatik searches for a device it is already paired with and connects to it. if more than one device is paired, linkmatik will connect to the first paired device it detects and is able to connect to. therefore the linkmatik must be paired with the devices it should connect to. you can do this by pairing from the remote device. alternatively you can use commands to discover the remote device and pair with it. this is detailed in the wedded pairs section. setting the baud rate format: set control baud rate ,8ps example: set control 9600,8n1 response: (none) this command sets the rxd / txd baud rate. there must be no spaces between the arguments . the baud rate change takes effect immediately. the baud rate must be changed with care. if you set it incorrectly by accident, you may no longer be able to communicate with linkmatik. only 8 bit data is permitted, with or without parity; however, 7-bit data with odd or even parity may be transmitted as 8-bit, no parity. note that baud rates below 9600 baud are somewhat inaccurate. rate 1200 = 1200 baud (+1.73% error) 2400 = 2400 baud (+1.73% error) 4800 = 4800 baud (+1.73% error) 9600 = 9600 baud (-0.82% error) 19200 = 9600 baud (+0.45% error) 38400 = 38400 baud (-0.18% error) 57600 = 57600 baud (+0.03% error) 76800 = 76800 baud (+0.14% error) 115200 = 115200 baud (+0.03% error) 230400 = 230400 baud (+0.03% error) 460800 = 460800 baud (-0.02% error) 921600 = 921600 baud (0.00% error) 1382400 = 1382400 baud (-0.01% error) 1843200 = 1843200 baud (0.00% error) 2765800 = 2765800 baud (0.00% error) p n = no parity bit e = even parity bit o = odd parity bit s 1 = one stop bit 2 = 2 stop bits configuring the bluetooth name format: set bt name devname example: set bt name ?fred? response: (none) this command sets the bluetooth device name. the name can be up to 256 ascii characters long, but not all remote devices will be able to display that many. configuring bluetooth device class format: set bt class devcls example: set bt class 522204 response: (none) this command sets the bluetooth device class represented as a 6-digit hexadecimal (3-byte) number. device classes ar e detailed in the section bluetooth device classes. set pin code security format: set bt auth * [pin] example: set bt auth * 0000 response: (none) this command sets the pin code security settings if the optional pin argument is specified, this becomes the pin code used to pair with other devices. if the optional pin argument is not specified, security and pin codes are disabled. this is not recommended as some devices require pin codes and connection will therefore not be possible.
page 6 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com the pin code may be up to 16 characters long. note that many mobile phones can only specify the digits 0-9 as pin codes. wedded pairs to create a wedded pair, one device must be the master and the other the slave. set the same pin code on both devices. then place the first device in auto-slave mode. place the second device in auto-master mode. it will have nothing paired with it initially. to set up its pair, use the i command to scan for the slave device. example: i 8 n response example: inquiry_partial 01:23:45:67:89:ab devcls inquiry 1 inquiry btaddr devcls ?? rssi name btaddr devname when the inquiry command is complete, connect to the auto-slave device using the c command, referring to the bluetooth address reported in the inquiry response obtained during the scan. format: c btaddr 1101 rfc example: c 01:23:45:67:89:ab 1101 rfc response: call linkid connect linkid rfcomm the devices will now be paired. when both devices power up, they will connect together automatically command mode to configure linkmatik for command / data mode, send the following commands: set control autocall set control echo 4 set control cd 4 1 set bt pagemode 3 2000 1 migration from linkmatik 1.0 migration from linkmatik 1.0 should be relatively straightforward. the following issues must be considered: ? the msm pin is replaced with the esc pin which should be kept low except to switch to command mode. ? atn pin performs the same function as the earlier status pin outputting high when the device is connected. ? data should not be sent to linkmatik when atn is low; it will be interpreted as a command ? connect / sleep pin is no longer functional. sleep mode can only be entered from command mode. ? auto-master mode connects according to its list of paired devices rather than the name of the remote device. migration from bluematik 1.0 migration from bluematik 1.0 is possible but will require modification of the motherboard and host firmware. the following issues must be considered: ? pin-out substantially changed ? command set substantially changed.
page 7 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com bluetooth device classes the 3-byte bluetooth device class determines what t he module claims to be when other bluetooth devices ask it. it affects the icon that appears on other bluetooth devic es and may affect the device discovery function. in particular some mobile phones only look for certain sub classes, e.g. headsets. the device class consists of three elements: the serv ices available, the major device class and the minor device class. any number of services can be indicated, but exactly one major class must be specified. the minor device class is an optional addition, defining a subset of the major device class. services and major device class the first two bytes of the device cla ss contain the services information an d the major device class. they are calculated by adding together as many service byte values that are required and one major device class. byte 1 byte 2 description data type 0x00 0x20 limited discovery mode 0x01 0x00 positioning 0x02 0x00 network 0x04 0x00 rendering 0x08 0x00 capturing 0x10 0x00 object transfer 0x20 0x00 audio 0x40 0x00 telephony 0x80 0x00 information services 0x00 0x01 computer 0x00 0x02 phone 0x00 0x03 lan 0x00 0x04 av 0x00 0x05 peripheral 0x00 0x06 imaging 0x00 0x1f uncategorized 0x00 0x00 miscellaneous device class device major class minor device class the last byte defines the minor device class and is optional. its interpretation depends on the major device class specified as follows. byte 3 computer major class phone major class lan major class av major class 0x00 other other lan 0% utilized other 0x04 desktop cellphone wearable headset 0x08 server cordless phone hands free device 0x0c laptop smartphone 0x10 handheld gateway / modem microphone 0x14 palm-sized isdn loudspeaker 0x18 wearable headphones 0x1c walkman 0x20 lan 1-17% utilized car audio 0x24 set top box 0x28 hi-fi 0x2c vcr 0x30 video camera 0x34 camcorder 0x38 monitor 0x3c monitor with audio 0x40 lan 17-33% utiliz ed conferencing device 0x48 toy 0x60 lan 33-50% utilized 0x80 lan 50-67% utilized 0xa0 lan 67-83% utilized 0xc0 lan 83-99% utilized 0xe0 lan 100% utilized
page 8 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com byte 3 peripheral device class add together one ? value and one ? value imaging device class add together as many values as apply uncategorized / miscellaneous device class 0x00 no keyboard or pointing device ? uncategorized / miscellaneous 0x00 other ? 0x04 joystick 0x08 gamepad ? 0x0c remote control ? 0x10 sensing device ? display 0x14 digitizer ? 0x18 card reader? 0x1c 0x20 camera 0x40 keyboard but no pointing device ? scanner 0x80 pointing device but no keyboard ? printer 0xc0 keyboard and pointing device ? example a cellphone might have object transfer, telephony, networ k and limited discovery services. its major class would be phone and its minor class would be cellphone. the calculation of the device class is as follows: byte 1 byte 2 byte 3 notes 10 object transfer services 40 telephony services 02 network services 20 limited discovery services 02 phone major class 04 cellphone minor class 52 22 04 total = 522204 = cellphone device class this device class is the default when shi pped. all values shown are hexadecimal.
page 9 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com mechanical data antenna reset pcms pcmc vss pcmi pcmo esc atn nc vdd rts txd dnc cts rxd dnc dnc dnc 17.78 pitch 37.5 21.0 width 2.54 pitch all dimensions mm pins are formed pin type, 1mm dia hole required on pcb pad vss vss vdd atn esc rts rx d pcmo dnc dnc cts pcmi pcmc pcms vss vss res et vdd dnc dnc dnc dnc dnc dnc dnc dnc tx d dnc antenna so pcb pad guide dil module 1.5 pitch 14.0 35.3 0.8 15.0 1.2 0.9 0.9 0.5 a ll pads except vss vss pads (top view)
page 10 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com technical specifications max operating temperature - 40oc to +85 oc max storage temperature - 40oc to +105 oc dimensions l w h (dil) 37.5mm 19.5mm 6.5mm excluding pins dimensions l w h (so class i) 35.5mm 14mm 2.3mm electrical supply voltage (dil) vdd 3.2v to 5.1v supply voltage (so) vdd 3.2v to 3.4v average current, idle 3ma average current, idle, deep sleep on 1.5ma average current, idle, deep sleep on, not connectable, not visible 370a average current, during discovery and connecting 55ma average current, connected as slave 6.5ma average current, connected as master 21.5ma average current, connected as slave, sniff mode 3.7ma average current, connected as master, sniff mode 4.85ma average current, connected as slave, park mode 3.4ma average current, connected, transmitting 22ma average current, connected, receiving 33.4ma average current, connected, transmitting, sniff mode 18.3ma average current, connected, receiving, sniff mode 23.8ma max voltage on i/o pins (dil) - 0.4v to 3.4v (pcm audio pins) - 0.4v to vdd+0.1v (other pins) max voltage on i/o pins (so) - 0.4v to 3.4v radio max rf output power class i = 100mw = +20dbm rf frequency range 2402mhz to 2480mhz rf channels 79 frequency hopping 1600 hz range 100m nominal communication latency, serial to serial via two linkmatik 2.0 radios 8ms to 15ms bluetooth qualification & logos and trademarks the radio has been pre-qualified and is listed in the bluet ooth qualified products as b03005. flexipanel ltd is registered as an adopter member with the bluetooth sig, inc. oems wishing to re-brand flexipanel ltd bluetooth products and use the bluetooth logos and trademar ks must also register as adopter members. membership is free, refer to www.bluetooth.org for details. fcc and ce modular approval the radio has ?modular approval? for usa and certain eu ropean countries, provided the existing integral antenna is used. the module indicates that it does not require further r&tt e certification. the exterior of the product should be marked as follows: contains transmitter module fcc id: qoqwt11
page 11 7-jul-06 linkmatik 2.0 DS379-1 ? flexipanel ltd patents apply and/or pending www.flexipanel.com distributor contact details linkmatik 2.0 is assembled and distributed by agreement by rf solutions ltd: r f solutions ltd unit 21, cliffe industrial estate, lewes, e. sussex, bn8 6jl, united kingdom email : sales@rfsolutions.co.uk http://www.rfsolutions.co.uk tel: +44 (0)1273 898 000, fax: +44 (0)1273 480 661 manufacturer contact details linkmatik 2.0 was developed by flexipanel ltd: flexipanel flexipanel ltd 2 marshall st, 3rd floor london w1f 9bb, united kingdom http://www.flexipanel.com email: support@flexipanel.com

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