To be able to run the preprogrammed code, you need to
connect the Atmel XMEGA-A3BU Xplained evaluation kit with a USB cable (standard A to mini-B
or mini AB) to a PC or USB hub. Once the kit is powered it is possible to browse the menu
system with the on-board mechanical buttons and the touch button. The functions for the
buttons are:
-
Top left mechanical button (SW0): Enter a menu
-
Bottom left touch button (QTB0): Return from a menu
-
Top right mechanical button (SW1): Browse the menu up
-
Bottom right mechanical button (SW2): Browse the menu down
The demo application allows also the XMEGA-A3BU Xplained
board to communicate with a computer using USB with a CDC (Communications Device Class)
setup, allowing the keyboard to be used to navigate in the demo application. When the
XMEGA-A3BU Xplained board is connected for the first time, Windows will try to install a
driver for “Virtual CDC Com”. A driver file, XPLAINED_Virtual_Com_Port.inf, is located in
the demo application directory or can be downloaded from the Atmel web-site (
Xplained USB CDC driver download). If the driver is successfully installed, the board will show up in in
the Device Manager under Ports (XPLAINED Virtual Com Port (COM**)). This COM port can now
be interfaced with your favourite terminal software. The connection parameters are as
follows:
-
Baud rate: 115200 baud
-
Data bits: 8
-
Parity: None
-
Stop bits: 1
-
Flow control: None
If the connection has been successfully established, you should be greeted by this
text on the screen of your
terminal:
Welcome to the XMEGA-A3BU Xplained Demo CDC interface!
Key bindings for LCD menu control:
Enter : Enter
Backspace : Back
Arrow Up : Up Arrow
Down : Down
The demo application for the XMEGA-A3BU Xplained is
available through the Atmel AVR Software Framework (ASF), version 2.6.0 or later. The demo
application is available as an example project in Atmel Studio and can be accessed by
clicking File -> New -> Example Project, and selecting “Demo application for
XMEGA-A3BU Xplained”. In-depth documentation for the demo application is available in the
XMEGA-A3BU Xplained Software User Guide.
To modify the example code or write new code and compile
it, you need a toolchain for the Atmel AVR microcontrollers and an IDE to edit and debug
code.