Texas Instruments 1110SRF900 User Manual

SWRU234b

2.1 Introduction

The CC1110 on the SmartRFCC1110 target
board is preprogrammed with a link test which
operates at 868.3 MHz, and uses GFSK
modulation and a bit rate of 2.4 kbps.

The link test runs a point-to-point communication
between a Slave and a Master node based on
the SimpliciTI 1.1.0 protocol.

First the Master and Slave nodes must be
configured as described in the following
sections. The two nodes will then establish a
link. When this link is established, the Master
starts to periodically send packets to the Slave.
Between each transmission, the Master goes to
receive mode and waits 250 ms for an
acknowledgement packet from the Slave. The
Slave node is in receive mode waiting for
packets from the Master. For each received
packet, the Slave automatically responds with
an acknowledgement packet.

2.2 Powering the boards

Place 2 AAA batteries in the battery holders
placed on the bottom side of each of the
SmartRFCC1110-868 boards. Place the jumper
on the power selection connector P1 between
pin 1 and pin 2 on each board.

Applying power to the SmartRFCC1110-868
starts the preprogrammed link test on the
CC1110 and the two LEDs on the board are on
for 1 s.
Warning! To minimize risk of personal
injury or property damage, never use
rechargeable batteries to power the board.
Do not leave the board powered when
unattended.

2.3 Configure the Master Node

Press the S1/MASTER button that is placed on
the left hand side of the board. When this
button is pushed, the two LEDs on this board
will blink rapidly. The Master now waits for a
Slave node to establish a link.

Note that the boards only respond to the first
button push. To reconfigure the board, the
board must be reset, see point 2.9 in this
manual.

2.4 Configure the Slave Node

On the other board, press the S2/SLAVE button
that is placed on the right side of the board.
When the button has been pushed, the two
LEDs on this board will blink very slowly until a
link with a Master node is established. Note that
establishing the link may finish in less than 1 s
depending on the environment.

It is important to keep distance (more than 1
meter) between the two nodes when they are
trying to establish the link to avoid saturation.
This is because full output power (12 dBm) is
used for this communication between the nodes.

2.5 The LEDs on the Master Node

LEDs

State

Both LEDs
blink rapidly

The Master is trying to
establish a link with a
Slave

Green LED
on for 0.5 s

The Master has
received an ACK to a
packet sent, link ok

Red LED on
for 0.5 s

The Master has not
received an ACK to the
last 3 packets sent

Red LED on
for 3 s

If the Master does not
receive ACKs from the
SLAVE in ~70 s, the
Master will stop to send
packets to save power.
Press S1/MASTER to
resume the link test

Red LED on
for 5 s

For test only:
When the link is
established, pressing
the S2/SLAVE button
turns the red LED on for
5 s

2.6 The LEDs on the Slave node

LEDs

State

Both LEDs
blink slowly

The Slave is trying to
establish a link with a
Master

Red LED on
continuously

The link between the
Slave and Master is
established and the
Slave is in RX waiting
for packets from the
Master

Green LED
on for 0.5 s
while red LED
on
continuously

The Slave has received
a packet from the
Master and sent an
ACK, link ok

Caution! The kit contains ESD
sensitive components. Handle
with care to prevent permanent
damage. To minimize risk of
injury, avoid touching
components during operation if
symbolized as hot.

October 2012

CC1110 Mini Development Kit 868-915 MHz

Quick Start Guide

1 Kit Contents

2 x SmartRFCC1110-868 target boards
1 x CC Debugger
1 x 10- pin flat cable with 2x5 2.54 mm connector
1 x 10-pin flat cable with 2x5 1.27 mm connector
1 x Converter board 2.54 mm – 1.27 mm connector
1 x Mini USB cable
Batteries
CD with Evaluation Version of the IAR EW8051
Documentation

The hardware in this kit is FCC/IC certified and complies with ETSI/R&TTE over temperature from 0 to +35°C.

2 Running the Preprogrammed Link Test

SWRU234b

2.7 Antenna Performance

The PCB antenna length on the
SmartRFCC1110-868 is tuned for optimal
performance with two AAA batteries present in
the battery holder. As this antenna is directive,
see DN024 www.ti.com/lit/swra227, it is
important to place the two nodes so that the
arrow in the silk print next to the antenna on
both boards points upwards towards the sky for
optimal performance.

2.8 Range testing

The preprogrammed link test is well suited for
range testing. Place the Slave in an open field
and bring the Master a known distance away.
Use the LED signaling to decide the link quality.

Note that the environment, antenna, etc greatly
affect the range, see DN018

www.ti.com/lit/swra169.

2.9 Resetting the board

The recommended reset sequence is:

Remove jumper on P1 completely
Push one of the buttons to discharge the

large capacitor on the power line. If this
capacitor is not discharged, the
SmartRFCC1110-868 boards may continue
to run the current application until the
capacitor is discharged. This may take
several seconds.

Replace the jumper on P1 to power the

board again

3.1 The CC Debugger

The CC Debugger connects to the PC via a mini USB and uses the
DEBUG interface to communicate with the radio. The tool can be used
for:

Programming the flash and debugging an application running on the

CC1110. The PC tools available for these purposes are the
SmartRF Flash Programmer from Texas Instruments and IAR
Embedded Workbench for 8051 from IAR Systems.

Testing the radio performance of CC1110 using SmartRF Studio.

For more details, please refer to the CC Debugger User’s Guide

www.ti.com/lit/swru197 and the CC1110 & CC2510 Mini Development

Kit User’s Guide www.ti.com/lit/swru236.

3.2 SmartRF Studio

SmartRF Studio can be used for RF testing, evaluation of CC1110 and to
find optimal register settings. It is available on www.ti.com/smartrfstudio.

3.3 Flash Programmer

The Flash Programmer application, available on the kit web page

http://focus.ti.com/docs/toolsw/folders/print/flash-programmer.html can

be used to program Intel HEX files, read the contents of CC1110 flash,
and several other operations.

3.4 IAR Embedded Workbench

To develop software, program and debug the CC1110, the IAR
Embedded Workbench for 8051 is recommended. An evaluation version
of IAR EW8051 is included in the kit. This free evaluation version and a
free code size limited version, can be downloaded from the web, see

www.iar.com/ew8051.

A. Available Software and User’s Guides

CC1110 & CC2510 Mini DK Software Example User’s Guide and

Source Code

Source and documentation for the link test for the SmartRFCC1110
target board www.ti.com/lit/zip/swrc133 and www.ti.com/lit/swru237

CC1110 & CC2510 Mini Development Kit User’s Guide

More documentation and details on the use of the SmartRFCC1110
target board www.ti.com/lit/swru236

CC1110, CC2510 Basic Software Examples

Source code for other, simple examples for the CC1110

www.ti.com/lit/zip/swrc117

SimpliciTI™ Network Protocol

An RF protocol targeting simple, small RF networks

www.ti.com/simpliciti

B. More information

The Low Power RF Online Community www.ti.com/lprf-forum has
forums, blogs and videos. Use the forums to find information, application
and design notes, FAQs, or to discuss and get help with your design.

On the Texas Instruments’ Low-Power RF web site www.ti.com/lprf, you
will find all our latest products, news and events updates, and much
more.

The TI LPRF eNewsletter keeps you up to date on e.g. new products,
application notes, software and events. Sign up at

www.ti.com/lprfnewsletter.

We hope you will enjoy working with the CC1110 Mini Development Kit
and associated Low-Power RF products from Texas Instruments.

Note that there should only be one active power source at any one
time.

October 2012

3 Using the CC Debugger with the Development Kit