Texas Instruments CC11 L Series Manuel utilisateur

SWRU29

January 2012

Web sites:

www.ti.com/lprf

E2E Forum:

www.ti.com/lprf

forum

Make sure to subscribe to the Low

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Newsletter to receive information ab

out updates to

documentation, new product releases

and more.

CC11

868/915 MHz

Development Kit

Quick Start

Guide

Opening the B

ox an

d R

unning the Packet Error Rate Test

1. Kit Contents

SmartRF

™

Transciever EB

(TrxEB)

2 x CC110L

EM 868/915 MHz

CC113LEM 868/915 MHz

1 x CC115LEM 868/915 MHz

1 x MSP43

0 Debug Probe

(FET)

2 x

Micro

SB C

ables

1 x Standard USB Cable

1 x 14

lat

able

4 x 1.5

olt

AA B

atteries

Documentation

Trx

EB O

verview

Caution!

The kit contains ESD sensitive

components. Handle with care to

prevent per

manent damage. To

minimize risk of injury, avoid touching

components during operation if

symbolized as hot.

3. Plug

the

EM into

the

Trx

Insert a CC11

EM into

the

TrxEB

. The

connectors will only fit in one position so that the

EM cannot be inserted t

he wrong way. Do not

use excessive

force

the EM.

The EM has a PCB antenna, so there is no need

for an external antenna.

You can also use CC113L and CC115L for the

Per test, but note that CC113L is a receiver only

and CC115L is a transmitter only.

4. Select Board Mode

Use the switches S1 and S2 to select the

operating mode of the board. For the sake of this

quick start guide, please select “

Enable

” and

“

UART”. This configuration will make it possible

to communicate directly with the MSP430 over a

irtual COM port on the PC.

. Power

Options

There are several ways of applying power to

the

TrxEB.



2 x 1.5

V AA batteries



USB



External

ower

upply



MSP430 Debugger

For the batteries and USB, there are voltage

regulators on the TrxEB that will set

the on

board

voltage to 3.3

V. The external power supply

should set a voltage

that does not exceed 3.3 V.

y default, the MSP430 debugger supplies 3.0

Note that there should only be one active

power source at any one time.

Warning!

To minimize risk of

personal injury or

property damage, never use rechargeable

batteries to power the board.

Do not leave the

EVM powered when unattended.

Select Power Source

Depending on the power source, make sure

you connect jumpers to the appropriate pins

on the “P

ower Source” header. For instance,

if you use batteries, use a jumper to short

circuit pin 1 and 2 on the header.

The last

jumper in the row (pin 9

10) should always

be mounted, unless the MSP430 FET is

used as the power source.

Welcome Screen

Tur

power

with the Main Power

switch. You

should

now

see the Texas Instruments logo

and

a short description of the buttons on the LCD.

Pushing any of the five buttons on the board will

take you to the main menu.

NB! If you don’t see anything on the scree

–

don’t panic.

First, make sure the mode switches

are in the correct positions (see step 4 above).

Secondly, the first build of TrxEB unfortunately

uses a connector that doesn’t fit exactly to the

pins of the LCD. It should be sufficient to tilt the

LCD

slightly to get a snug fit with the connector.

. Packet

rror

Rate T

est

Select the PER (Packet Error Rate) test by

highlighting the selection

using the up/down

buttons. Confirm your selection by pressing

Enter (right button).

. S

elect

est

Mode

he PER test can be run is several modes. Easy

Mode sets up a one

way test and uses default

settings. This test is convenient for practical

range testing.

The other test modes are described in the

“

Software Examples

for CC112x, CC11xL and

CC1101 U

ser’s Gu

ide

”.

To proceed, highlight “Easy Mode” and press

Enter (right button).

onnectors

MSP430

reakout

USB

reakout

Main

Power

Switch

Power

Selection

Board Mode

Switches

LCD

Button

MSP430

Debug

Interface

. Select

Frequency

Select which frequency to use for the test. Make

sure that the evaluation modules you have

match the selected frequency.

. Select

Mode

One of the board

s must operate as the slave

(transmitter) and the other as master (receiver).

Select

Slave

on one board…

…and

Master

on the other board.

Establish Link

The slave node will now wait for a configuration

package from the Master. The configuration

ntains the parameters used for the PER test.

The configuration package will be sent when you

select “link devices” on the master node.

Link E

stablished

When the initial linking has completed, the slave

node will start the test by co

ntinuously

ansmitting packets to the master.

Start the R

eceiver (master)

On the master node, you can select the number

of packets you want to receive in order to

calculate the packet error.

When selecting “Start PER Test”, the master

(receiver) will beg

in to count the number of

received packets and provide some statistics.

. PER Test

Results

The master will display a window that plots the

received signal strength (RSSI) for each packet.

Press the “Up” button to go to the detailed

statistical win

dow.

. PER Test R

esults

The statistics window will show the error rate

based on

the number of lost or erroneous

packets divided by the total number of packets

that should have been received.

. Troubleshooting

It you are experiencing problems with

this test,

please check the following:



Nothing is shown in the display!

Unfortunately, the first series of TrxEB uses

a connector that doesn’t fit exactly to the pins

of the LCD. It should be sufficient to tilt the

LCD slightly to get a snug fit with the

connector.



Please visit the kit web page and check for

updated SW and documentation. Updated

SW can be downloaded to the device using

IAR EW430 or SmartRF Flash Programmer.



If you get poor PER results at short

distances, try to move the transmitter and

ceiver further apart. The CC11

receiver

may experience saturation if it

is too close to

the other CC11

transmitting at full output

power.

. References

Please visit

www.ti.com

and

http://www.ti.com/tool/cc11xldk

868

915

On the kit product page, you will find additional

documentation, links to updated software

examples and software tools like SmartRF

Studio.

You will also find a lot of information on the TI

2E forum at

http://e2e.ti.com

We hope that you will enjoy working with the

CC110

L, CC113L and CC115L

device

SmartRF

™

Studio

1. Download and Install

Before connecting SmartRF

Trx

EB to your PC,

download

and install

SmartRF Studio from

www.ti.com/smartrfstudio

2. Launch SmartRF Studio

After installing the tool, connect the EB to the PC

using the USB cable and start SmartRF S

tudio.

Select the “Sub 1 GHz

” tab and double click the

highlighted device icon (CC110L, CC113L or

CC115L).

Test

the Radio

You can

now configure the radio

, export

run performance tests of

the radio

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