ATxmega-A3BU Xplained board

Caution

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Tip

When using this board with RIOT, set the BOARD variable to atxmega-a3bu-xplained in your Makefile. If you follow the standard RIOT project structure, your Makefile should look like this:

./Makefile

# name of your application
APPLICATION = hello-world

# Change this to your board if you want to build for a different board
BOARD ?= atxmega-a3bu-xplained

# This has to be the absolute path to the RIOT base directory:
RIOTBASE ?= $(CURDIR)/RIOT

include $(RIOTBASE)/Makefile.include

Support for the ATxmega-A3BU Xplained board

The ATxmega-A3BU Xplained is a reference to develop with XMEGA’s.

MCU

MCU	ATxmega256A3BU
Family	AVR/ATxmega
Vendor	Microchip (previously Atmel)
Flash	256KiB
RAM	16KiB
EEPROM	4KiB
Frequency	up to 32MHz
Timers	7 16bit (32 bit combining 2 x 16 bit)
ACs	4 Analog Comparators
ADCs	2 - 16 channels - 12 bit - 2msps
ADCs	1 - 2 channels - 12 bit - 1msps
UARTs	6 (can be used in SPI mode) with 1 IrDA
SPIs	2
I2Cs	2 (called TWI)
USB	1 port
DMA	4 Channels
Event System	8 Channels
Ext. INT	All GPIOs
Crypto	AES/DES, CRC-16, CRC-32
Vcc	1.6V - 3.6V
Datasheet	Datasheet
Xmega Manual	Manual
Guide	AVR1923 PDF
Schematic	AVR1923 ZIP

Flashing the Device

The ATxmega-A3BU Xplained needs an external programmer like atmelice.

In order to flash the ATxmega256A3BU, simple run:

make BOARD=atxmega-a3bu-xplained flash

Serial Terminal

This board needs a serial converter. The default STDIO is at J1 pins 2/3.

make BOARD=atxmega-a3bu-xplained term