Arietta technical documentation Buy on-line

Arietta - System On Module

Linux embedded system on module designed around the Microchip AT91SAMG25 ARM9@400MHz MPU

Main features Long term availability

Microchip AT91SAM9G25 MPU (ARM9@400Mhz)

DDR2 RAM 128/256 MB @ 16 bit

MicroSD holder push-pull type

MicroUSB device port for power-in and gadget device

User configurable led

User configurable push-button

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

Designed and Made in Italy

Exposed signals 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 adapter) 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

Placement for a 20x2 pins connector pitch 2.54mm (100 mils) (pinout): DP placements for a 6 pin male strip pitch 2.54 (100 mils) with the Debug Port Interface lines

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

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

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.

Software features

This board is fully supported inside the Linux Kernel main stream http://www.kernel.org. Thanks to this fact it is possible to try also the very latest Kernel releases. On this site we'll release up to the latest longterm versions.

All the kernel drivers are fully open source and available directly on the official Linux repository.

On the main index is available the step-by-step documentation to install Linux from scratch.

Ready-to-use binary images are available on the download page

Ready-to-buy-and-use microSDs are also available on our Acme Systems eShop

Thousands of open source applications are available from the Debian and Buildroot repositories.

ARMHF is the architecture to select for RoadRunner and Acqua boards. ARMEL is the architecture to select for Aria and Arietta boards.

Please note ! Starting from July 2018 we make by default just color green Ariettas G25. The only difference between the legacy black version (ARIETTA-G25) and the new green version (ARIETTA-G25-V) is the solder mask color. To order the legacy black version a Minimal Quantity Order of 100 pcs is requested.

Technical Documentation Buy on-line

BOM origins

Component Brand and Origin CPU Microchip Technology Incorporated (USA) RAM Micron Technology (USA) , Samsung (South Corea), Hynix (South Corea), Elpida (Japan), Alliance (USA) PCB Rayming PCB (China) Quartz IEV Industria Elettronica Varese (Italy) MicroSD holder JAE (Japan), other vendors (China) Passive Yageo, Panasonic, Taiyo Yuden, Samsung, Vishay, Bourns, other vendors (China) Connectors Hirose (USA), Wurth Elektronik (Germany), other vendors (China) WiFi module Various vendors (China)

Video

Arietta technical documentation Buy on-line