DR-TRC105-304-DK
DR-TRC105-315-DK
DR-TRC105-345-DK
DR-TRC105-372-DK
DR-TRC105-390-DK
DR-TRC105-403-DK
DR-TRC105-434-DK
DR-TRC105-450-DK
DR-TRC105-DK
Development Kit
User’s Guide
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Introduction
The DR-TRC105 series development kits can be used to evaluate TRC105 radio
technology, and to prototype applications that will use the TRC105 RFIC. These
development kits include the necessary hardware, firmware and utility software to
support efficie nt TR C 1 05 eval uation and sy stem dev el op men t. Thi s user ’ s gui de cover s
the following development kits:
Development Kit Part Number Operating Frequency Range
DR-TRC105-304-DK 303.325 - 307.300 MHz
DR-TRC105-315-DK 310.000 - 319.500 MHz
DR-TRC105-345-DK 342.000 - 348.000 MHz
DR-TRC105- 372-DK 365.000 - 380.00 MH z
DR-TRC105-390-DK 382.000 - 398.000 MHz
DR-TRC105-403-DK 402.000 - 407.300 MHz
DR-TRC105-434-DK 418.000 - 434.790 MHz
DR-TRC105-450-DK 447.000 - 451.000 MHz
Table 1 - Development Kit Part Numbers
Each DR-TRC105 development kit contains the following items:
•2 DR-TRC105 Radio Boards
•2 DR-TRC103/105 Interface Boards
•2 Dipole Antennas
•2 USB 2.0 A/B Cables
•2 Universal Wall-plug Power Supplies, 4.5 V
•2 AA Battery Packs
•4 AA Batteries
•CD Containing:
RFIC Design Assistant Software
Kit Firmware C Source Code
User’s Guides
The DR-TRC105 development kits provide the following features:
•Supports TRC105 Evaluation and Application Development
•Facilitates TRC105 Parame te r Configuration
•USB or RS232 Interface Options
•Wall-plug Power Supply or Battery Power Options
•Includes Example Firmware and PC Utility Software
•Integrated Firmware Range Test Function
•Up to 200 kb/s RF Data Rate
•Out-of-the-box Operation
•64-byte Packet Handling
•Compatible with SiLabs C8051F310 Development Tools (sold separately)
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DR-TRC105 development kits are designed to facilitate the configuration of all TRC105
transmitter, receiver and interface functions, and to support application firmware and
system development. The development kits can be controlled using the RFIC Design
Assistant utility software. Two-way communication link testing is also supported by the
data terminal program built into the RFIC Design Assistant utility. In addition, a stand
alone range test function is included in the radio board firmware to allow roaming range
tests. Figure 1 shows a development kit interface board with a radio board installed.
Figure 1 - DR-TRC105-DK Radio and Interface Board Set
The antennas included in each development kit match the operating frequency of the
kit, and may be a different length than the 434 MHz antenna shown above. Antennas
should always be installed before turning on a radio board.
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Figure 2 - DR-TRC105-DK Interface Board Connectors and Controls
Figure 2 shows the locations of the interface board DC power connectors, user controls
and LED indicators. Normally an interface board is powered from one of the 4.5 volt
universal wall-plug power supplies provided in the development kit, as shown in the left
panel of Figure 3. For roaming range testing and field testing, the interface board can be
powered from a 9 volt battery as shown in the right panel of Figure 3. Note - do not
install a 9 volt battery while the interface board is connected to the wall-plug power
supply. Use only one power source at a time. Power input pins are also provided for
connection to a regulated 4.5 to 12 volt lab supply. When connecting to these pins, take
care with the polarity. The pin closest to the power connector is the positive input.
Figure 3 - Power Options
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The power switch shown in Figure 2 connects the output of the 3 volt regulator on the
interface board to the POWER ON LED, the serial communication interface circuitry and
the radio board. Note that there is a small current draw from the regulator when the
power switch is in the off position, and this will eventually discharge a 9 volt battery if it
is left installed.
The radio RESET button on the interface module allows the user to reset the radio
board to a know state from any mode the radio board is in.
Figure 4 - DR-TRC105-DK Interface Board Serial Connectors
Figure 4 shows the serial communication connectors on the interface board. The kit
includes two USB 2.0 A/B cables for connection to a PC. When a USB cable is plugged
into an interface board, it automatically disables the RS232 interface circuitry. Note that
the interface board is not designed to powered from the USB interface, so DC power
must be supplied separately as discussed above. The kit CD includes the PC drivers
needed to make the interface board USB connection appear as a virtual COM port.
Refer to the USB Virtual COM Ports section of the RFIC Design Assistant User’s Guide
on the CD for driver installation details.
To configure the interface board for RS232 operation, remove the serial jumpers shown
in Figure 4. Use a 9-pin “external modem cable” (straight through, not null modem) to
connect the interface board to the PC.
The left panel in Figure 5 shows USB operation, the right panel shows RS232
operation. Note the serial jumpers have been removed for RS232 operation.
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Figure 5 - USB and RS232 Serial Connection Options
Initia l Ki t Testing Using the Range Test Function
1. Install the antennas and then the 9 volt batteries in both board sets. No PC
connection is required for the range test function.
2. Turn on the board sets by sliding the Power switch on the interface board to the
ON position. All LED’s on the radio board will flash and the MODE LED will be
green.
3. See Figure 6 below. On one board, briefly press and release the RANGE button.
The RANGE LED will illuminate continuously. This is the “receiving” board.
4. On the other board, press and hold the RANGE button until the LED’s begin
flashing. This board is the “transmitting” board.
5. If the radios are receiving good packets, then the green Good Packet LEDs will
be flashing alternately on each board (plus various yellow LEDs). Figure 10
details the locations of the LEDs.
6. To verify that the radio boards are operating properly, disable the “receiving”
board by pressing and releasing the RANGE button twice. The RANGE LED will
turn off. On the transmitting board, you should observe the red Packet Error LED
flashing. This indicates that the transmitter sent a packet but did not receive an
acknowledgment back from the “receiving” radio board.
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Figure 6 - Initial Testing Using Range Test Function
Kit Testing using the RFIC Design Assistant
1. Install the RFIC Design Assistant utility program from the kit CD. If you are using
the USB interface, install the virtual COM port drivers. Refer to the USB Virtual
COM Ports section of the RFIC Design Assistant User’s Guide on th e CD for
driver installation details.
2. If installed, remove the 9 volt batteries from the board sets. Install the antennas
as needed and then connect a 4.5 volt wall-plug power supply to each board set.
3. Connect one of the board sets to the PC. Turn on the board set by sliding the
Power switch on the interface board to the ON position. All LED’s on the radio
board will flash and the MODE LED will be green.
4. Start the RFIC Design Assistant utility program a s shown in Figu re 7. Select the
COM port or virtual COM port assigned to the board set from the drop-down
menu at the top of the utility program screen. The COM port can be determined
from Wind ows® as follows: Start > Settings > Control Panel > System >
Hardware > Device Manager > Ports (COM & LPT).
5. Select the TRC105 from the TRC drop-down menu as shown in Figure 8. This
will launch the TRC105 multi-tab dialog window as shown in Figure 9
6. Select the Main Menu tab and click on the Read Configuration button. A hex
dump of the current TRC105 configuration parameters should appear in the text
box above the button as shown in Figure 9. This confirms the development board
set is commun icating with the utility program. Test the other de velopment kit
board set in the same manner. The development kit is now ready to use.
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Figure 7 - Starting RFIC Design Assistant
Figure 8 - Selecting TRC105 Operation
Figure 9 - Read Configuration Test
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Figure 10 - DR-TRC105 Radio Board LED Indicators
Radio Board Detail s
The DR-TRC105 radio board LED indicator names and locations are shown in Figure
10. Table 2 summarizes the functions of the DR-TRC105 radio board connectors, user
controls and LED indicators.
Component Designator Function
I/O Connector J2 20-pin connector for power and logic signal I/O (bottom of board)
Battery Connector J3 Radio board “battery” power connector, 2.7 to 3.6 volts
Batter y Power Switc h SW1 On/off switch, in lin e with b attery connector
Mode Switch SW2 Used to set the radio mode
Range Switch SW3 Used to set up range testing and data terminal functions
TX Power Adj Pot R7 Transmitter power adjustment potentiometer
Antenna Connector RF-IO 50 ohm antenna connector, standard SMA
Current Monitor Pins J1 Remove jumper from these pins to measure TRC105 current
Serial/PLL LED D1 Yellow LE D blinks to indicate serial a ctivity wi th external host
TRC105 SPI LED D2 Yellow LED blinks to indicate SPI activity to/from the TRC105
Packet Error LED D3 Red LED blinks to indicate received packet failed CRC check
Good Packet LED D4 Green LED blinks to indicate received packet passed CRC check
MODE LED D5 Green/yellow LED color indicates mode of operation
RANGE LED D6 Yellow LED blinks to indicate range test or data terminal operation
Low Battery LED D7 Red LED illuminated to indicate low battery (must be configured)
Table 2 - DR-TRC105 Radio Board Connector, Control and Indicator Functions
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When a DR-TRC105 radio board is initially power on, it is configured as follows:
Operating Frequency:
DR-TRC105-304-EV 303.825 MHz
DR-TRC105-315-EV 315.000 MHz
DR-TRC105-345-EV 345.000 MHz
DR-TRC105-372-EV 372.250 MHz
DR-TRC105-390-EV 390.000 MHz
DR-TRC105-403-EV 403.500 MHz
DR-TRC105-434-EV 433.920 MHz
DR-TRC105-450-EV 450.000 MHz
Power: +10 dBm
Frequency Deviation: ±50 kHz
Data Rate: 25 kb/s
Receiver Baseband Bandwidth: 100 kHz
The radio board is also initially configured in Receive Continuous Mode (see the
TRC105 datasheet for an explanation of continuous mode, buffered data mode, packet
data mode, etc.). In receive continuous mode, the MODE LED will be green. Receive
continuous mode allows the user to connect a modulated signal from a signal generator
source onto the board through a short, coaxial cable and verify the demodulated signal
with an oscillosco pe through the DAT pin.
Briefly pressing the MODE button once configures the board into Transmit Continuous
Mode. The Mode LED will change color from green to yellow. This mode turns on the
transmitter. The frequency and output power may be verified on a spectrum analyzer. A
square-wave modulating signal may be applied to the DAT pin and modulation
observed on the spectrum analyzer.
Briefly pressing the MODE button again configures the board into Sleep Mode. The
Mode LED will turn off. By connecting an ammeter across the terminals of J1, with the
jumper removed, the user can verify the very low sleep current of the TRC105 device.
As shown in Figure 11, potentiometer R7 can be used to adjust the transmit power
level. To increase the output power, rotate the potentiometer screw clockwise. To
decrease the power, rotate the potentiometer screw counterclockwise. The transmit
power is divided into 8 levels. Adjusting R7 adjusts the voltage level to the A-to-D
converter (ADC) in the host microcontroller. The microcontroller periodically samples R7
for a change, and updates the transmit power register when it detects a change in
voltage level. Each time the microprocessor updates the transmit power register the SPI
LED D2 will flash indicating an SPI write.
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Figure 11 - DR-TRC105 Radio Board TX Power Adjustment
Two AA battery packs are supplied in the development kit to power the radio boards
when they are removed from the interface boards, as shown in Figure 12. Alternately, a
regulated power supply in the range of 2.7 to 3.6 volts can be used to power the radio
boards. Note - there are no voltage regulators on the radio boards. Applying a voltage
outside the specified power supply range can damage the boards. Do not attempt to
power a radio board directly through its battery connector using one of the 4.5 volt wall-
plug power supplies. The 4.5 volt power supplies are used to power the development kit
interface boards, which in turn provide regulated 3 volts to the radio boards. The AA
battery packs should only be used to power stand alone radio boards. They do not
provide enough voltage to reliably power the interface boards. Do not attempt to power
a radio board through its battery connector when it is plugged into an interface board.
Figure 12 - Powering the Stand-alone Radio Boards
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Figure 13 - DR-TRC105 Radio Board Test Points
Referring to Figure 13, test points are provided to monitor signals to/from the TRC105
RFIC in real time. Test point details are listed in Table 3:
PCB Symbol Function
SCK SPI clock
SDO SPI data from TRC105
SDI SPI data to the TRC105
SSC SPI configuration select
SSD SPI data select
CLK Buffered/divided clock from crystal
DAT Input/output data (disabled in buffered and packet modes)
IRQ0 Interrupt 0 output
IRQ1 Interrupt 1 output
PLK PLL lock indicator output
C2D Processor programming
C2K Processor programming
GND Ground
J1 Remove the jumper from these pins to measure the TRC105 current
Table 3 - DR-TRC105 Radio Board Test Points
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Figure 14 - DR-TRC103/105 Interface Board Details
Interface Board Details
Figure 14 and Table 4 summarizes the functions of the DR-TRC103/105 interface board
connectors, user controls and LED indicators. Also note that many of the radio board
test points are duplicated on the edge of the interface board prototyping area.
Component Designator Function
Radio Connector J1 20-pin radio board interface connector
Micro Connector J2 10-pin microprocessor programming connector, SiLabs compatible
RS232 Connector J3 RS232 9-pin D connector
Power Connector J4 Coaxial power connector, 4.5 to 12 volts
Power Input Pins J5 Alternate power input pins, 4.5 to 12 volts
USB Connector J6 Type B USB Connector
Battery Connectors J7-J8 9 volt battery connectors
Serial Mon itor Pi ns J9 Monitoring pins f or logic -l ev el seri al data
TX Serial Jumper J10 Routes logic-level serial data to USB converter, remove for
RS232 operation
RX Serial Jumper J11 Routes logic-level serial data from USB converter, remove for
RS232 operation
POWER Switch SW1 Regulated 3 volt power switch
Radio RESET Switch SW2 Radio firmware reset switch
POWER LED D1 Green LED illuminates when POWER switch is on
USB ON LED D2 Green LED illuminates when USB is active
Table 4 - DR-TRC103/105 Interface Board Connector, Control and Indicator Functions
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Figure 15 - Mode Switches and LEDs
Radio Board Fir mware Details
Table 5 summarizes the switch-selectable modes supported by the radio board
firmware. Figure 15 shows the location of the mode selection switches and LEDs.
Mode Mode Selection
Reset
Cycle power or press the RESET switch on the interface board. All LEDs
on the radio board will flash, and the MODE LED will illuminate green. The
default operating frequency and firmware version message is output on the
serial connection.
Receive Continuous Default mode following a reset. MODE LED is green.
Transmit Continuous Following a reset, press the MODE button briefly. MODE LED is yellow.
Sleep Cycle Following a reset, press the MODE button twice briefly. MODE LED is off.
Serial/PLL LED will periodically flash.
Range Test Receive
(Packet Receive)
Following a reset, press the RANGE button briefly. The RANGE LED will
illuminate yellow. The message RX MODE is output on the serial
connection.
Range Test Transmit Following a reset, press and hold the RANGE button until several LEDs
begin flashing.
Terminal
Following a reset, press the RANGE button briefly twice, with about one
second between the first and second button press. On the first press, the
The message RX MODE is output on the serial connection. On the second
button press, the message TERM MODE is output on the serial connection.
Table 5 - DR-TRC105 Firmware Switch-selectable Modes
RESET
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The firmware includes several command formats that are used by the RFIC Design
Assistant utility program to read and write parameters to the TRC1 05 conf iguration
registers and to send and receive terminal mode messages. Table 6 summarizes
several commands that are useful for proof-of-concept testing.
Command Format Example
Write Register Wrrdd
or
wrrdd
Write register rr with data dd, where rr and dd are two
character hex values. For example, write 0x80 to register
0x01 is formatted as W0108.
Terminal Mode Send 02msg03
The DR-TRC105 radio board must be in terminal mode, as
discussed in Table 5 above. The user’s message, up to 63
bytes, must be preceded with an ASCII 0x02 start-of-text
character, and followed by an ASCII 0x03 end-of-text
character. For example, the string of hex characters to
send Hello in ASCII is: 0248656C6C6F03
Terminal Mode Receive 02msg030D0A When the example string above is output by the receiving
node, an ASCII carriage return - line feed is added as
follows: 0248656C6C6F030D0A
Table 6 - DR-TRC105 Firmware Serial Commands
Figure 16 - DR-TRC103/105 Interface Board Connector for Firmware Development Support
Custom Firmw are Development Support
The 10-pin programming header on the interface board is compatible with the Silicon
Labs development tools for the C8051F310 microcontroller. This allows the user to
develop and test custom firmware for use with the TRC105.
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Firmware should be loaded and tested with the interface board powered on. The C
source code for the firmware shipped in the development kit is included on the CD for
reference.
Radio Board Interface Connector
Figure 17 shows the pin numbering detail of connector J2 on the edge of the DR-
TRC105 radio boards. Figure 17 can be used with the schematics in the last section of
this manual to design a custom application interface for the radio boards. Note that all
signal levels into and out of this connector are nominally 3 volt logic level. Attempting to
use RS232 signal levels to directly interface the radio board can damage it.
1
2
1 9
2 0
35791 1 1 3 1 5 1 7
11
1
1 2
1 0
J 2
J 3
J 2 i n n u m b e r i n g a s v i e w e d f r o m t h e t o o f a
D - T C 1 0 5 r a d i o b o a r d ( c o n n e c t o r o i n t s d o w n )
J 2 i s a S A M T E C S F M L - 1 1 0 - T 1 - S - D - L C
T h e m a t i n g c o n n e c t o r f o r J 2 i s a
S A M T E C T F M L - 1 1 0 - 0 1 - S - D - L C
Figure 17 - DR-TRC105 Radio Board Connector Detail
Development Kit Documentati on
The schematics of each radio board and the interface board with the top assembly
views are provided on the following pages. Also see the RFIC Design Assistant utility
software and r elated User’s Guide, th e DR-TRC105-EV Evaluation Kit User’s Guide,
and the TRC105 Data Sheet. The latest versions of the Data Sheet, User’s Guides, and
the RFIC Design Assistant utility software can be downloaded from RFM’s web site,
www.murata.com.
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Circuit board dimensions: 1.00 x 2.80 x 0.65 inches (25.4 x 71.1 x 16.5 mm)
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