SWRU282
March 2011
CC85XXDK-HEADSET Quick Start Guide
1. Kit Contents
The following items are included in the
CC85XXDK-HEADSET:
2 x CC85XX Headset boards
2 x Battery
1 x CC Debugger
1 x USB micro cable
1 x 3.5mm jack to 3.5mm jack cable
Documentation
If anything is missing in the CC85XXDK-
HEADSET please contact your local TI
sales representative.
2. Purpose of this Quick Start
Guide
This quick start guide will provide step-by-
step instructions showing how to set up an
audio link between two wireless units
provided in the development kit.
The CC8531 on each of the boards are
pre-programmed with firmware to stream
audio from the Master microphone input to
the Slave headphone output. Please
follow step 3 to 9. Information on how to
upgrade with latest firmware, see step 10.
For more details on CC85XX, see the
product folder of the CC8520 [1].
Performance and functionality of the
CC8531 are strongly dependant on the
firmware. Thus, for performance testing
etc make sure the firmware used is the
latest released firmware from the TI web
site, see step 10.
3. Plug the batteries to each of
the Headset boards
There’s only one way to connect the
battery plug to the socket on the board.
With the pre-programmed firmware the
CC8531 enters the OFF power mode
when the battery is connected. The
batteries should have enough charge out-
of-the-box to establish a link and stream
audio. To charge the battery, see section
9. With full battery the link should run for
typically 15 hours, the Master being the
bottleneck. The Slave plays audio for 22
hours typically.
4. Power up both boards
In the pre-programmed firmware the
toggling between power modes OFF and
ON is mapped to pressing the rocker
switch IN for 1.6 seconds. The two boards
are unpaired out-of-the-box, so in the ON
power mode the topmost LED should flash
once every second indicating network
state ALONE . In the OFF power mode
the LED is turned off. Make sure both
boards are flashing.
5. Connect an audio source to
the Master
Connect an audio source (CD-player,
MP3-player or similar) to the line in
connector on the Master Headset board
(labeled Master on the back side) via the
3.5mm jack cable.
The Master is pre-programmed with
firmware
to
set
up
the
onboard
TLV320AIC3204 codec [2] to power down
the DAC and use the line in connector as
source to the ADC input.
6. Connect a headphone to the
Slave
Connect a headphone to the 3.5mm
headphone output on the board labeled
Slave on the back side.
The Slave is pre-programmed with
firmware
to
set
up
the
onboard
TLV320AIC3204 codec [2] to power down
the ADC and have the headphone
connector as destination of the DAC
output.
