Radiotronix RK-WI.M868X-R User manual
RK-WI.M868X-R
USER’S MANUAL
Revision
1.0.0
RK-WI.M868X-R USER’S MANUAL
1
RADIOTRONIX, INC.
RK-WI.M868X-R USER’S MANUAL
©Radiotronix
905 Messenger Lane
Moore, Oklahoma 73160
Phone 405.794.7730 • Fax 405.794.7477
www.radiotronix.com
RK-WI.M868X-R USER’S MANUAL
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Document Control
SIGNED DATE
CREATED BY TRM 12/15/2004
ENGINEERING REVIEW
MARKETING REVIEW TJE 6/13/2007
APPROVED- ENG.
APPROVED- MAR. TJE 6/13/2007
Revised History
REVISION SIGNED DATE DESCRIPTION
1.0.0 TRM 12/15/2004 Document created.
RK-WI.M868X-R USER’S MANUAL
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Table of Contents
1. DESCRIPTION ............................................................................................................................................. 5
2. DEVELOPMENT KIT SETUP....................................................................................................................... 6
3. USING THE RK-WI.M868X-RTM EVALUATION SOFTWARE .................................................................... 7
3.1. COM PORT SETUP AND SELECTION........................................................................................................... 7
3.2. WIRELESS CHAT PAGE.............................................................................................................................. 7
3.3. NON-VOLATILE REGISTER PAGE ................................................................................................................ 8
3.4. VOLATILE REGISTER PAGE ........................................................................................................................ 9
4. USING THE EVALUATION SOFTWARE..................................................................................................10
4.1. SETTING REGISTER VALUES .................................................................................................................... 10
4.1.1. Transceiver Mode ........................................................................................................................... 10
4.1.2. Transmit Diagnostic ........................................................................................................................ 10
4.1.3. Receive Diagnostic ......................................................................................................................... 10
5. NOTES........................................................................................................................................................ 11
5.1. MICROSOFT/HILGRAEVE HYPERTERMINAL............................................................................................... 11
5.2. LOOPBACK MODE.................................................................................................................................... 11
6. PCB LAYOUT DIAGRAMS........................................................................................................................ 12
6.1. RK-WI.M868X-RTM EVALUATION BOARD LAYOUT.................................................................................... 12
6.2. WI.M868X-EVM-RTM EVALUATION MODULE LAYOUT............................................................................... 13
6.3. WI.M868X-EVM-RTM MODULE PIN OUT.................................................................................................. 14
6.3.1. Pin Descriptions .............................................................................................................................. 14
7. SCHEMATIC DIAGRAMS.......................................................................................................................... 15
7.1. WI.M868X-EVM-RTM SCHEMATIC DIAGRAM............................................................................................ 15
7.2. RK-WI.M868X-RTM EVALUATION BOARD SCHEMATIC DIAGRAM ............................................................... 16
8. CUSTOM APPLICATIONS ........................................................................................................................ 17
9. ORDERING INFORMATION...................................................................................................................... 18
9.1. CONTACT INFORMATION .......................................................................................................................... 18
9.1.1. Technical Support........................................................................................................................... 18
9.1.2. Sales Support.................................................................................................................................. 18
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Index of Tables
Table 1, Pin Descriptions ....................................................................................................................................14
Table of Figures
Figure 1: COM Port Setup.....................................................................................................................................7
Figure 2: Wireless Chat.........................................................................................................................................8
Figure 3: Non-Volatile Register Page....................................................................................................................8
Figure 4: Volatile Register Page............................................................................................................................9
Figure 6: RS-232 Jumpers ..................................................................................................................................11
Figure 7: Evaluation Board Layout......................................................................................................................12
Figure 8: Evaluation Module Layout....................................................................................................................13
Figure 9: WI.M868X-EVM-RTM Schematic Diagram............................................................................................15
Figure 10: RK-WI.M868X-RTM Evaluation Board Schematic Diagram................................................................16
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1. Description
The RK-Wi.M868X-RTM is a rapid-development/evaluation kit for the Wi.M868X data transceiver.
Included in the kit is:
•1 – Development Case
•1 – Development Utility and Documentation CD
•2 – Development Boards
•2 – Wi.M868X-EVM-RTM modules (pinned)
•2 – 868 MHz Antennas
•2 – RS-232 Cables
•2 – USB Cables
•6 – AAA Batteries
•Quick Start Guide
•Datasheet/ User’s Manual hard copy (optional)
* Datasheet/ User’s Manual is provided on the Documentation CD.
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2. Development Kit Setup
•Insert the AAA batteries into the evaluation PCB, observing the correct polarity.
•Insert a Wi.M868X-EVM-RTM module into one of the evaluation boards, observing the correct
orientation (see later in this document). The correct orientation of the module is with the antenna
connector closest to the edge of the evaluation board. Make sure it is seated fully and correctly.
•Insert the other Wi.M868X-EVM-RTM module into the other evaluation board, also observing the
correct polarity.
•Connect antennas to Wi.M868X-EVM-RTM modules.
•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.M868X-RTM Windows software. If already installed, skip this step.
•Run the RK-Wi.M868X-RTM software, select 2400 baud operation and navigate to the “Wireless Chat”
tab.
•Power-On both evaluation boards, verifying that the version/copyright information is echoed to the
screen from both modules.
•Chat back and forth between evaluation boards, verifying that serial and RF communications are
successful.
IMPORTANT NOTE FOR HYPERTERMINAL USERS: See section 4.1
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3. Using the RK-WI.M868X-RTM Evaluation Software
The software supplied with the RK-Wi.M868X-RTM Development Kit is used to read and set the volatile and non-
volatile registers with the Wi.M868X-RTM module. Refer to the Wi.M868X-RTM Users Manual for more information
on the register settings.
3.1. COM Port Setup and Selection
Upon starting the RK-Wi.M868X-RTM evaluation 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 the 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-Wi.M868X-RTM evaluation software, the Baud
Rate should be left at 2400 baud, since this is the factory default baud rate
setting for the module.
Tip: The RK-Wi.M868X-RTM evaluation software does not auto detect the
baud rate of the module. If you have changed the Non-Volatile Data Rate
register, you will have to select the baud rate you set this register to when
you start the RK-Wi.M868X-RTM evaluation software.
Figure 1: COM Port Setup
3.2. Wireless Chat Page
The Wireless Chat page in the RK-Wi.M868X-RTM evaluation software demonstrates the capability of the
Wi.232TM to be used as a wireless communications link. The Rapid Development kit works as a wireless chat link
with no register changes required, out of the box.
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To Use Wireless Chat: Type a message in the lower text field and press Enter. The text you typed will be
displayed on the remote system, prefixed with a Node Identifier if you specified one.
Figure 2: Wireless Chat
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, you will have to
select the baud rate you
set this register to when
you start the RK-
Wi.M868X-RTM evaluation
software.
Figure 3: Non-Volatile Register Page
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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.
Tip: It is important to note
that data rates in excess
of 19.2kbps cannot be
achieved in LP mode due
to bandwidth limitations.
Figure 4: Volatile Register Page
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4. Using the Evaluation Software
4.1. Setting Register Values
On both the Volatile and Non-Volatile pages, the registers are labeled by function. To set a register value, select
the value from the options available for that register and click the “Write” button. To perform a read of that
register, simply click the “Read” button. Descriptions of the register functions can be found in the Wi.M868X-RTM
Users Manual.
4.1.1. Transceiver Mode
This selects the modulation mode and power output of both the transmitter and receiver. The mode is not set
until “Set TX Diag” or “Set RX Diag” is pressed. If “Set RX Diag” is pressed, the power output value is
ignored.
4.1.2. 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 select 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 the transmitter on using the channel and mode selected in the channel
selector and transceiver mode controls. A “…1010101010101…” bit pattern is transmitted for bit error testing
with another system or RF carrier analysis.
4.1.3. 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 select the lowest, the middle, or the highest channel. Any
specific channel can be selected by using the controls above the “Set RX Diag” button.
The “Set RX Diag” button switches on the receiver using the channel and mode selected in the channel
selector and transceiver mode controls. Additionally, the module enters the diagnostic bit error test.
If a “…1010101010101…” bit pattern is received at the frequency and baud rate set up in the relevant
registers, the BER test will return the number and percent of bit errors. This information is displayed in the
panel below the “Set RX Diag” button. If no transmission is present, or the transmission is at the wrong
frequency or data rate, the module may enter an infinite loop waiting for the beginning of the data. In this
case, the module should be powered down and back up to return the module to its normal operating mode.
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5. Notes
5.1. Microsoft/ Hilgraeve HyperTerminal
The RK-Wi.M868X-RTM Evaluation Kit can be used with HyperTerminal 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 moduSle 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 other 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. Removing this jumper will disconnect the RTS line from the CMD pin on the
module, allowing normal operation.
5.2. Loopback Mode
The RK-Wi.M868X-RTM kit can be operated in a loopback mode 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 their local
evaluation board and have 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:
Figure 5: RS-232 Jumpers
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6. PCB Layout Diagrams
6.1. RK-WI.M868X-RTM Evaluation Board Layout
Figure 6: Evaluation Board Layout
Chapter
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6.2. WI.M868X-EVM-RTM Evaluation Module Layout
JP1 Pin 1 JP2 Pin 1
Figure 7: Evaluation Module Layout
NOTE: Pin 1 of the Wi.232DTS-FCC-R module’s JP2 aligns with Pin 1 of JP6 on the evaluation board. The
following table lists the pin numbers and their assignments.
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6.3. WI.M868X-EVM-RTM Module Pin Out
6.3.1. Pin Descriptions
Table 1, Pin Descriptions
Pin Name Pin Description
JP2 Pin 1 4V to 12V Vdd
JP2 Pin 2 RxD0, Wi.M868X-RTM RxD pin
JP2 Pin 3 TxD0, Wi.M868X-RTM TxD pin
JP2 Pin 4 CTS0, Wi.M868X-RTM CTS pin
JP2 Pin 5 CMD (Active Low), Wi.232DTS CMD pin
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
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7. Schematic Diagrams
7.1. WI.M868X-EVM-RTM Schematic Diagram
Figure 8: WI.M868X-EVM-RTM Schematic Diagram
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7.2. RK-WI.M868X-RTM Evaluation Board Schematic Diagram
Figure 9: RK-WI.M868X-RTM Evaluation Board Schematic Diagram
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8. Custom Applications
For cost-sensitive applications, such as wireless sensors and AMR, Radiotronix can embed the
application software directly into the microcontroller built into the module. For more information on this
service, please contact Radiotronix.
Chapter
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9. Ordering Information
Product Part Number Description
RK-Wi.M868X-R Development Kit
Wi.M868X-EVM-R Evaluation Module
9.1. Contact Information
Corporate Headquarters:
905 Messenger Lane
Moore, Oklahoma 73160
405-794-7730
website: www.radiotronix.com
9.1.1. Technical Support
Radiotronix has built a solid technical support infrastructure so that you can get answers to your questions
when you need them. Our primary technical support tools are the support forum and knowledge base found
on our website. We are continuously updating these tools. To find the latest information about these
technical support tools, please visit http://www.radiotronix.com/support. Our technical support engineers are
available Mon-Fri between 9:00 am and 5:00 pm central standard time. The best way to reach a technical
support engineer is to submit a Webcase. Webcase submissions can be made at
http://www.radiotronix.com/support/webcase.asp. For customers that would prefer to talk directly to a support
engineer, we do offer phone support free of charge.
9.1.2. Sales Support
7730. Our sales department is available Mon-Fri between 8:30 am and 5:00 pm central standard time.
Visit our web site at http://www.radiotronix.com/corpsales.asp for information on where to buy our
products.
Chapter
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Table of contents
