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- i - rk-wi.m900x user?s manual rev 1.0.0 905 messenger lane moore, ok 73160 405-794-7730 ? 2004 radiotronix inc, all rights reserved
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 1 - 1/29/2007 document control created by tom marks 12/15/04 engineering review marketing review approved - engineering approved - marketing revision history revision author date description 1.0.0 gwh 1/27/06 adapted fr om rk-wi.232dts manual
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 2 - 1/29/2007 table of contents 1 description .................................................................................................................... ...........3 2 ra pid d evelopment kit setup .................................................................................................3 3 using the rk-wi.m900x evaluation so ftware.........................................................................4 3.1 com port setup and select ion. ..................................................................................... 4 3.2 wireless ch at page. ...................................................................................................... 5 3.3 non-volatile regi ster page............................................................................................ 6 3.4 volatile regi ster page.................................................................................................... 6 4 using the evaluat ion software.................................................................................................7 4.1 setting register values.................................................................................................. 7 4.2 transceive r mode........................................................................................................... 7 4.3 receive diagnostic......................................................................................................... 7 4.4 transmit di agnostic ....................................................................................................... 7 5 notes.......................................................................................................................... ..............8 5.1 microsoft windows / hilg raeve hyperte rminal. ............................................................. 8 5.2 loopback mo de.............................................................................................................. 8 6 pcb layout diagrams ............................................................................................................ .9 6.1 rk-wi.m900x evaluation (rapid development) board layout..................................... 9 6.2 wi.m900x evm (evaluati on module) layout .............................................................. 10 7 schematic diagrams............................................................................................................. .12 7.1 wi.m900x evm (evaluation modul e) schematic diagra m ......................................... 12 7.2 rk-wi.m900x evaluation (rapid de velopment) schematic diagram......................... 13 8 notes.......................................................................................................................... .........14
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 3 - 1/29/2007 1 description the rk-wi.m900x is a rapid-development/evaluat ion kit for the wi.m900x data transceiver. included in the kit is: ? 1-rapid development case. ? 1-rapid development utility and documentation cd. ? 2-rapid development boards. ? 2-wi.m900x transceiver modules, mounted on evms*. ? 2-900mhz antennas. ? 2-rs-232 cables. ? 2-usb cables. ? 6-aaa batteries. ? startup guide. ? an evm is a wi.m900x module pre-mounted on a small pcb with onboard antenna connector and power supply regulator. 2 ra pid d evelopment kit setup ? insert the aaa batteries into the eval uation pcb, observing the correct polarity. ? insert an evm into one of the evaluation boards, observing the correct orientation (see later in this document). the correct orientation of the evm is with the antenna connector closest to the edge of the evaluation board. make sure the module is seated fully and correctly. ? insert the other evm into the other evaluati on board, also observing the correct polarity. ? connect antennas to evms. ? connect evaluation boards to computers. if using usb communications, populate usb jumpers and remove rs-232 jumpers. if using rs-232 communications, populate rs-232 jumpers and remove usb jumpers. ? install the rk-wi.m900x windows software. if already installed, skip this step. ? run the rk-wi.m900x software, select 2400 baud operation and navigate to the ?wireless chat? tab. ? power-on both evaluation boards, verifying that t he version/copyright information is echoed to the screen from both modules. ? chat back and forth between evaluation boards, ve rifying that serial and rf communications are successful. ? important note for hyperterminal users : see section 5.1
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 4 - 1/29/2007 3 using the rk-wi.m900x evaluation software the software supplied with the rk-wi.m900x radkit is used to read and set the volatile and non-volatile registers with the wi.m900x module. refer to the wi.m900x users manual for more information on the register settings. 3.1 com port set up and selection. upon starting the rk-wi.m900x ev aluation software, you will be presented with a com port selection dialog box. if you are using the usb interface, make sure that the evaluation board is already connected to the computer via t he usb cable before you start the software. this will ensure that the virtual com port which is assigned to the usb to uart bridge controller by windows is visible in the com port selection list. the first time you start the rk-w i.m900x evaluation software, the baud rate should be left at 2400 baud, since this is the factory default baud rate setting for the module. tip: there is no way for the rk-wi.m900x evaluation software to detect which baud rate the module is set to. if you have changed the non-volatile data rate register, you will have to select the baud rate you set this register to when y ou start the rk-wi.m900x evaluation software.
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 5 - 1/29/2007 3.2 wireless chat page. the wireless chat page in the rk-wi.m900x eval uation software demonstrates the capability of the wi.232 to be used as a wireless communications link. the rapid development kit works as a wireless chat link with no register ch anges required, out of the box. to use wireless chat: type a message in the lower text field and press en ter. the text you typed will be displayed on the remote system, prefixed with a node identifier if you specified one.
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 6 - 1/29/2007 3.3 non-volatile register page. the non-volatile register page in the evaluation software allows you to change the default settings which will be loaded when the module is powered on. it is important to note that data rates in excess of 19.2kbps cannot be achieved in lp mode due to bandwidth limitations. tip: if you change the non-volatile data rate setting and restart the board, this is the baud rate you select when you start the rk-wi.m900x evaluation software. 3.4 volatile register page in this page, you can change the volatile settings of the module. values programmed into these registers are lost of power-down. the page also provides a means of switching the receiver and transmitter on and off, setting receive and transmit channels, transceiver mode and modulation settings. it is important to note that data rates in excess of 19.2kbps cannot be achieved in lp mode due to bandwidth limitations.
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 7 - 1/29/2007 4 using the evaluation software. 4.1 setting register values. on both the volatile and non-volatile pages, the register s are labeled by function. to set a register value, select the value from the options available for that r egister and click the ?write? button. to perform a read of that register, simply click the ?read? button. descr iptions of the register functions can be found in the wi.m900x users manual. 4.2 transceiver mode this selects the mode of both the transmitter and receiv er. the mode is not set until ?set tx diag? or ?set rx diag? is pressed. once transmit diagnostic or receive diagnostic is executed, module must be reset to resume normal operations. 4.3 receive diagnostic receive diagnostic consists of four radio buttons which select the transmit channel. low, mid and high are quick reference buttons which can be used to sele ct the lowest, the middle, or the highest channel. any specific channel can be selected by using the controls above the ?set rx diag? button. transmit diagnostic consists of four radio buttons which select the transmit channel. low, mid and high are quick reference buttons which can be used to sele ct the lowest, the middle, or the highest channel. any specific channel can be selected by using the controls below the ?set rx diag? button. the ?set rx diag? button switches on the receiver using the channel and mode set up using the channel selector and transceiver mode controls. if a ??1010101010101?? bit pattern is being received at the frequency and baud rate set up in the relevant registers, a ber test will be performed and the numbe r and percent of bit e rrors is displayed in the panel. 4.4 transmit diagnostic transmit diagnostic consists of four radio buttons which select the transmit channel. low, mid and high are quick reference buttons which can be used to sele ct the lowest, the middle, or the highest channel. any specific channel can be selected by using the controls below the ?set tx diag? button. the ?set tx diag? button switches on the transmitter using the channel and mode set up using the channel selector and transceiver mode controls. a ??1010101010101?? bit pattern is transmitted for bit error testing with another system. this is not a true pseudo-random sequence ber test.
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 8 - 1/29/2007 5 notes 5.1 microsoft windows / hilgraeve hyperterminal. the rk-wi.m900x evaluation kit can be used with hy perterminal to receive and transmit rs-232 data and send files using file transfer protocols such as zmodem. hyperterminal and many other terminal programs assert rts by default. on the evaluation board, the rts line is tied to the cmd pin on the module. when the cmd pin is held low, which is the case when the rts line is asserted, the module will be placed in command mode. in command mode, all uart data sent to the module will be interpreted as commands and will not be sent to the rf engine for transmission. additionally, if an evaluation board is switched on in the presence of an asserted rts line, it will perform a full hardware and flash reset to the factory defaults. to use the evaluation board with hyperterminal or ot her terminal program, you must first remove the jumpers from pins 7+8 of jp2, if you are using an rs -232 connection to your pc, or jp3, if you are using a usb connection to your pc. remo ving this jumper will disconnect the rts line from the cmd pin on the module, allowing normal operation. 5.2 loopback mode. the rk-wi.m900x kit can be operated in a loopback m ode by configuring the com jumpers in such a way as to link together the txd and rxd lines to and from the module in the remote evaluation board. using this mode, the user can send data from thei r local evaluation board and hav e it re-transmitted back to them by the remote evaluation board. the maximum baud rate allowed in loopback mode is 38400 baud for point to point communications only. loopback mode using the rs232 jumpers:
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 9 - 1/29/2007 6 pcb layout diagrams 6.1 rk- wi.m900x evaluation (rapid development) board layout
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 10 - 1/29/2007 6.2 wi.m900x evm (evalu ation module) layout jp1 pin 1 jp2 pin 1 note: pin 1 of the evms jp2 aligns with pin 1 of jp6 on the evaluation board. the following table lists the pin numbers and their assignments
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 11 - 1/29/2007 pin name pin description jp2 pin 1 4v to 12v vdd jp2 pin 2 rxd0 jp2 pin 3 txd0 jp2 pin 4 cts0 jp2 pin 5 rts0 / cmd (active low) jp2 pin 6 rxd1 ? reserved for future ? no connect jp2 pin 7 txd1 ? reserved for future ? no connect jp2 pin 8 rts1 ? reserved for future ? no connect jp2 pin 9 dtr1 ? reserved for future ? no connect jp2 pin 10 dtr1* - reserved for future ? no connect jp2 pin 11 gnd jp2 pin 12 gnd jp1 pin 1 gnd jp1 pin 2 gnd jp1 pin 3 ad1 ? reserved for future ? no connect jp1 pin 4 ad0 ? reserved for future ? no connect jp1 pin 5 rssi ? reserved for future ? no connect jp1 pin 6 pd5 ? reserved for future ? no connect jp1 pin 7 pd4 ? reserved for future ? no connect jp1 pin 8 pd3 ? reserved for future ? no connect jp1 pin 9 pd2 ? reserved for future ? no connect jp1 pin 10 pd1 ? reserved for future ? no connect jp1 pin 11 gnd jp1 pin 12 gnd table 1, wi.m900x-evm module pinout
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 12 - 1/29/2007 7 schematic diagrams 7.1 wi.m900x evm (evaluation module) schematic diagram
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 13 - 1/29/2007 7.2 rk-wi.m900x evaluation (rapid development) schematic diagram.
rk-wi.m900x rapid development kit user?s manual ? 2002-4 radiotronix inc, all rights reserved - 14 - 1/29/2007 8 notes

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