Eval Kit Manual
AS7265x Multispectral
Chipset
Evaluation Kit User Guide
ams Eval Kit Manual
[v1-07] 2018-May-23
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AS7265x Multispectral Chipset
Evaluation Kit User Guide
Content Guide
1
1.1
2
3
3.1
3.2
3.3
3.4
4
5
6
7
8
Introduction ........................................................................................................................ 3
Kit Content ......................................................................................................................... 3
Getting Started .................................................................................................................. 3
Hardware Description ........................................................................................................ 4
Hardware Architecture ....................................................................................................... 4
Power Supply .................................................................................................................... 5
Interface to Controller ........................................................................................................ 5
LEDs.................................................................................................................................. 6
Software Description.......................................................................................................... 7
AS7265x Multispectral Chipset Schematics ....................................................................... 8
Ordering & Contact Information ......................................................................................... 9
Copyrights & Disclaimer .................................................................................................. 10
Revision Information ........................................................................................................ 11
ams Eval Kit Manual
[v1-07] 2018-May-23
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AS7265x Multispectral Chipset
Evaluation Kit User Guide
1
Introduction
AS7265x Multispectral Chipset Evaluation Kit provides a platform to evaluate ams AS7265x
Multispectral Chipset products with the Spectral Sensor Dashboard software running on a Windows
personal computer. This user guide describes the features and functions of AS7265x Multispectral
Chipset evaluation kit.
Note, the described Kit with the hardware release 1V1 is based on the generation 1 of the
Multispectral Chipset. Therefore, please check in case of any firmware update if the firmware release
is compatible to this hardware release For more details see the application note “AS7265x Design
considerations”.
1.1
Kit Content
The following items are delivered with this Evaluation Kit.
Figure 1. Kit Content
2
3
1
Pos.
1
2
3
Item
USB Cable
AS7265x Multispectral Chipset Board
USB Data Stick
Comment
USB – UART Cable with MicroUSB Connector
Evaluation Board
Documents and Software
2
Getting Started
The demo kit requires one time installation of FTDI Virtual COM Port Driver for the USB cable as well
as ActiveState ActiveTcl Community Edition for the dashboard software if both are not already
installed on the computer. Both installation files can be found in the USB Data Stick. If there is an
issue about the installation, please refer to
www.ftdichip.com
and
www.activestate.com
for more
information.
ams Eval Kit Manual
[v1-07] 2018-May-23
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AS7265x Multispectral Chipset
Evaluation Kit User Guide
The Dashboard software does not require an installation. Please copy the following files to any folder
you would like to work with and double click the “.tbc” file to start the GUI.
Figure 2. Dashboard Software Files
#
1
2
File
ams_Spectral_Sensor_Dashboard_x.x.xx.tbc
ams_logo_xparent_h30.gif
Comment
Tcl file with revision x.x.xx
ams logo
3
Hardware Description
The AS7265x Multispectral Chipset board by default consists of the UART interface, the LDO for 3.3V
supply, AS72651/AS72652/AS72653 devices with associated flash memory, and the programming
header for the flash memory.
If you would like to evaluate AS7265x Multispectral Chipset products with an I
2
C interface, the board
also has the option for that. Please refer to the next section.
3.1
Hardware Architecture
Figure 3. Board Block Diagram
LDO
3V3
5V
3V3
PC
Terminal
UART
MicroUSB
AS72651
I2C
AS72652
AS72653
SPI
Memory
Figure 4. Connectors and LEDs
A
C
B
D
ams Eval Kit Manual
[v1-07] 2018-May-23
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AS7265x Multispectral Chipset
Evaluation Kit User Guide
Pos.
A
B
C
D
Designator
J1
AS72651, D9
AS72652/3,
D12/13
J2
Comment
MicroUSB Connector; Connect to a personal computer;
AS72651 with Place Holders for the LED;
AS72652/3 with Place Holders for the LEDs;
Flash Memory Programming Header;
3.2
Power Supply
The AS7265x Multispectral Chipset board will be powered up from the MicroUSB cable that connects
to personal computer. The onboard LDO converts 5V USB power to 3.3V for the chipsets.
3.3
Interface to Controller
AS7265x Multispectral Chipset board by default has UART interface to a controller. A user could get
the sensors data with the Dashboard software. J1 is the MicroUSB connector that connects the cable
to a computer for UART interface. The cable has an internal USB-UART convertor.
With a minor modification, I
2
C interface can be supported. The test points in next Figure could be
used for I
2
C connection. The test point, TX, should be connected to SDA and the test point, RX,
should be connected to SCL. Also R3/R4 are for I
2
C pull up resistors.
R17 and R18 would pull I
2
C_ENB pin of AS72651 up or down for selecting UART or I2C interfaces.
Install R17 for I
2
C interface and install R18 for UART interface.
ams Eval Kit Manual
[v1-07] 2018-May-23
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