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Tiny, cheap and easy ARM9@400Mhz Linux Embedded module for DIY and Maker cultures

Important news

  • TFT 2.8 inch with resistive touch for Arietta G25 available on January. See the preview

  • The Arietta G25 (128 MByte) price will be increased from 20 to 25 EUR starting from February 2015. If you want to mantain the actual price (up to 6 months) please book your stock now.

Main features

  • CPU Atmel AT91SAM9G25 SoC (ARM9 @ 400Mhz)
  • DDR2 Ram 128 or 256 MByte
  • Power supply: 5VDC via microUSB or 3.3VDC using the PCB pads
  • Line levels: TTL 3.3V (NOT 5V tolerant)
  • Operative temperature range:
    • ARIETTA-G25 (128MByte RAM): -20 +70 C
    • ARIETTA-G25-256 (256MByte RAM): -0 +70 C
  • Size: 53x25mm
  • PCB layers: 8
  • RoHS and REACH compliant. Low EMI
  • Availability: > 5 years
  • Designed and Made in Italy

Exposed signals and external devices

  • J4 Placement for a 20x2 pins connector pitch 2.54mm (100 mils) (pinout):
    • 1 full-speed usb host
    • 1 hi-speed host/device (same port lines used for the microUSB port)
    • 1 hi-speed host (same lines used for the WiFi adpter)
    • UART lines: 3 ports
    • I2C bus lines: 2 bus
    • SPI bus lines: 1 bus with up to 3 chip select (5 to 50 MHz)
    • PWM lines: 4 lines
    • A/D converters lines: 4 channels@10 bit
    • SSC/I2S interface for audio soc
    • No video or TFT output but the SPI bus can be used for small TFT display and I2C bus for small alphanumeric LCD
    • No direct LAN interface but the USB ports can be used with USB to LAN adapter
  • DP placements for a 6 pin male strip pitch 2.54 (100 mils) with the Debug Port Interface lines
  • Placement for IEE802.11 b/g/n Wi-Fi module WiFi USB adapter
  • Push-push type holder for bootable microSD (up to 64GB) with Linux pre-installed
  • microUSB connector to plug the Arietta to your PC and access to the internal Linux with and emulated LAN port over USB (USB gadget)
  • User configurable led on board
  • User configurable push button on board

Please note that not all the signales are available at the same time. Some line are muxed together.

Software Features

Documentation

Pin muxing

Most of the Arietta lines on J3 can be configured for additional functions using the muxing cabability of the Atmel MPU. The default configuration depends from the at91-arietta.dtb file stored on the first micro SD partition and used at startup by the Linux Kernel.

The Arietta dynamic pinout page may helps you to understand what are the available peripherals and how to generate this file.

BOM origins

Component Brand and Origin
CPU Atmel Corporation (USA)
DDR2 RAM Micron Technology (USA) , Samsung (South Corea), Hynix (South Corea)
PCB Rayming PCB (China)
Quartz IEV Industria Elettronica Varese (Italy)
MicroSD holder JAE (Japan)
Passive Various vendors (China)
Connectors Various vendors (China)
WiFi module Various vendors (China)

Design and manufacturing

What they say about Arietta

Video




Acme Systems srl
Via Aldo Moro 53 - 00055 Ladispoli (RM) - Italy
P.IVA/C.F. 08114831004
Tel +39.06.99.12.187 - Fax +39.06.622.765.31
http://www.acmesystems.it
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Documentation Terms of Use
Acme Systems provides this documentation "as is" without warranty or guarantees of any kind. We not provide any direct support for the Open Source preinstalled software but, through these pages and forum posts, all of the information required to obtain the sources, install, use and update the Open Source software that can be run on the Acme boards. Please note that all of the preinstalled software, used on the Acme Systems products, are Open Source so you have to check the license terms provided by the authors (usually the GPL) before using it in any commercial or non-commercial product, by yourself. Before to contact us please note that WE ARE MAINLY HARDWARE DESIGNERS and NOT LINUX GURUS and therefore could be better to post your questions to the Acme Systems forum and ensure that all of the site contributors and large software community can read and reply to your questions.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
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