CC2520-CC2591EMK Quick Start Guide SWRU172B October 2009 1. Kit Contents

CC2520-CC2591EMK Quick Start Guide SWRU172B October 2009 1. Kit Contents
SWRU172B
October 2009
CC2520-CC2591EMK Quick Start Guide
1. Kit Contents
2. Plug EM into SmartRF05EB
2 x CC2520-CC2591EM and antennas
Documentation
The CC2520-CC2591EM can be plugged into
the SmartRF05EB or the CCMSPEM430F2618. Please refer to the CC2520DK
User Guide for more information about these
boards.
4. Packet Error Rate (PER) Test
5. Select Channel
6. Set up the Receiver
Select one of the 16 IEEE 802.15.4 channels,
with channel number from 11 to 26 (24052480 MHz, 5 MHz channel spacing). The
channel is selected by navigating the joystick
to the right or left. Confirm the selection by
pressing Button 1.
Set one of the boards to operate as receiver.
Use the joystick to select mode. Confirm the
selection by pressing Button 1.
7. Select High/Low Gain
8. Ready to Receive
9. Set up the Transmitter
Select high gain mode or low gain mode of
the LNA (low noise amplifier) on the CC2591
(see CC2591 datasheet for details). For best
sensitivity, use high gain mode. Low gain
mode may be used for close-in reception in
order to avoid saturation of the receiver.
The receiver will now wait for packets from
the transmitter.
Set the other board to operate as transmitter.
Use the joystick to select mode. Confirm the
selection by pressing Button 1.
When the board has been programmed with
the PER test, the board should start up and
the LCD will display the screen as shown in
the picture above. The number in the
parentheses is the revision of the CC2520.
Press Button 1 to continue.
3. Download Software from web
In order to run a packet error rate (PER) test
with the CC2520-CC2591, it is necessary to
download updated software from the
www.ti.com/cc2520dk web page. The
CC2520 software examples include a hex file
that can be programmed on the CCMSPEM430F2618 board (no compilation required)
with the MSP430 FET tool. Use our Flash
Programmer (www.ti.com/lit/zip/swrc044) for
this purpose.
SWRU172B
October 2009
10. Select Output Power
11. Select Number of Packets and
Packet Rate
12. Start PER test
The PER test can now be started on the
transmitter by pressing the joystick. The
transmitter will display the number of packets
sent, while the receiver will display the RSSI
and PER values.
On the transmitter node, select the TX output
power (signal strength). This adjusts the
strength of the signal coming from the
CC2520 to the CC2591. The displayed value
is the amplified signal from the CC2591. Use
the joystick to select between -1, 11, 14, 16
or 17 dBm. Confirm the selection with Button
1.
Select burst size (number of packets to send)
by using the joystick, either 1000, 10K, 100K
or 1M packets. Confirm the selection with
Button 1. On the next menu step, select
Packet Rate in the same way.
13. Observe PER and RSSI
14. SmartRF Studio
15. More Information
SmartRF® Studio supports the CC2520CC2591. When the board is connected
directly to the SmartRF05EB, it is possible to
tick the CC2591 box in the “Range Extender”
pane.
For more information about the CC2591,
please visit the product web page on
www.ti.com/cc2591.
Studio will then configure some GPIO pins on
the CC2520 to control the command signals
of the CC2591.
You can also download the latest IEEE
802.15.4 MAC or the TI ZigBee stack (ZStack) from the web.
The PER test receiver will display the PER
value (number of lost and erroneous packets
divided by the total number of packets sent,
displayed as a fraction of 1000). It will also
display a moving average RSSI value
(received signal strength). The test can be
reset by pressing Button 1.
Kit and Software
The source code for the PER tester and EM
reference design can be downloaded from
the CC2520-CC2591EMK web page. The
latest version of SmartRF® Studio can be
downloaded from www.ti.com/smartrfstudio
We hope you will enjoy working with the
CC2591 and associated Low-Power RF
products from Texas Instruments.
PCB Antenna
Inverted F-Antenna
(Default not connected)
SMA
Antenna
connector
Antenna
selector
CC2591
CC2520
32MHz
Crystal
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