ATxmega-A1 Xplained board

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When using this board with RIOT, set the BOARD variable to atxmega-a1-xplained in your Makefile. If you follow the standard RIOT project structure, your Makefile should look like this:

# name of your application
APPLICATION = hello-world

# Change this to your board if you want to build for a different board
BOARD ?= atxmega-a1-xplained

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

include $(RIOTBASE)/Makefile.include

Support for the ATxmega-A1 Xplained board

Overview

The ATxmega-A1 Xplained is an old reference to develop with XMEGA’s.

MCU

MCU	ATxmega128A1
Family	AVR/ATxmega
Vendor	Microchip (previously Atmel)
Flash	128KiB
RAM	8KiB
EBI	16MiB SRAM, 128MiB SDRAM
EEPROM	2KiB
Frequency	up to 32MHz
Timers	8 16bit (32 bit combining 2 x 16 bit)
ACs	4 Analog Comparators
ADCs	2 - 16 channels - 12 bit - 2msps
ADCs	2 - 2 channels - 12 bit - 1msps
UARTs	8 (can be used in SPI mode) with 1 IrDA
SPIs	4
I2Cs	4 (called TWI)
DMA	4 Channels
Event System	8 Channels
Ext. INT	All GPIOs
Crypto	AES/DES, CRC-16, CRC-32
Vcc	2.7V - 5.5V (when clocked at 8MHz)
Datasheet	Datasheet
Xmega Manual	Manual
Guide	AVR1924 PDF
Schematic	AVR1924 ZIP

Flashing the Device

The ATxmega-A1 Xplained needs an external programmer like atmelice.

In order to flash the ATxmega128A1, simple run:

make BOARD=atxmega-a1-xplained flash

Serial Terminal

The CDC-ACM will enumerate a /dev/ttyACM device. The STDIO at CDC-ACM shares with J4 pins 2/3.

make BOARD=atxmega-a1-xplained term