#Acqua A5 - Linux embedded system on module

<abstract>
Linux embedded system on module designed around the Microchip SAMA5D31 Cortex-A5@536 MHz MPU 
</abstract>

<div class="col-md-6">
<img class="img-responsive center-block" width="100%" src="./acqua_top_view.jpg">
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<img class="img-responsive center-block" width="100%" src="./acqua_bottom_view.jpg">
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<a href = "/doc_acqua" class = "btn btn-primary" role = "button"><i class="glyphicon glyphicon glyphicon-book"></i> Documentation</a>

##Main features

* <a href="/declarations/ProductsAvailability.pdf" target="_blank">Long term availability</a>
* Linux Kernel 4.19 - Debian Buster - Buildroot 2020 - Yocto
* Single core CPU ARM Cortex-A5 (armhf) @ 536MHz (<a href="https://www.microchip.com/design-centers/32-bit-mpus/microprocessors/sama5" target="_blank">more info...</a>): 
  * <a href="http://www.microchip.com/wwwproducts/en/ATSAMA5D31" target="_blank">Microchip SAMA5D31</a>
  * <a href="http://www.microchip.com/wwwproducts/en/ATSAMA5D36" target="_blank">Microchip SAMA5D36</a>
* DDR2 RAM 256 or 512 MB @ 32 bit
* Nand FLASH 0 or 256 MB 
* MicroSD holder hinge type
* <a href="http://www.atmel.com/Images/Atmel-8807-SEEPROM-AT24MAC402-602-Datasheet.pdf" target="_blank">AT24MAC402</a> chip on-board:
	* Factory programmed unique EUI-48 MAC address for eth0 interface
	* I2C-Compatible (2-wire) 2-Kbit Serial EEPROM
	* Embedded Unique 128-bit Serial Number
* 10/100 Mbit ethernet interface
* Power control on eth port for power safe applications
* 3 USB Host ports (one configurable as USB device)
* 24 bit LCD controller and resistive touch panel I/F
* 4 status leds
* Single power supply at 3.3 Volt DC
* 3x50 pin connectors pitch 1.27 mm (50 mils)
* Floating Point Unit
* Available temperature ranges:
  * Commercial: -0 +70 &deg;C
  * Extended:  -25 +85 &deg;C
* Size: __53 x 53 mm__ (2.09 x 2.09 inches)
* Weight: __14g__
* Placement for metal shield for harsh environment
* AES/DES encryption engine
* Software compatible with SAMA5D3 Xplained board
* PCB layers: 10
* Low power consumption
* Low EMI
* CE, RoHS and REACH compliant
* Designed and Made in Italy
* No Acme Systems brand printed on-board
* [Declarations of conformity](/declarations)

##Software features

* This board is fully supported inside the Linux Kernel main stream [http://www.kernel.org](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 @article='doc_acqua' is available the step-by-step documentation to install Linux from scratch. 
* Ready-to-use binary images of Debian and Buildroot Linux distribution are available on @article='download_acqua' page 
* Ready-to-use microSDs are also available on our [Store](/pricelist?category=acqua)

##Exposed signals 

* 10/100 Mbit ethernet phy
* RGB i/f @ 24 bit for LCD TFT
* Resistive touch panel i/f
* TWI compatible I2C i/f (up to 3)
* SPI bus i/f (up to 2)
* GPIO lines (up to 120)
* A/D @ 12 bit (up to 12)
* Timer counters (up to 2)
* Serial ports (up to 6)
* 3 USB Host, 1 USB device
* Memory Card i/f (up to 2)
* ITU-R BT 601/656 image sensor i/f
* PWM (up to 6)
* SSC-I2S audio i/f (up to 2)
* Programmable clock (up to 3)
* JTAG port on pads 
* Debug serial port
* Battery input for internal RTC

<img class="img-responsive center-block" width="60%" src="./acqua_peripherals.jpg">

##MicroSD hinge type holder

To open the Acqua microSD holder apply a gentle pression to the metallic 
shield then shift it ahead.

<img width="200px" src="./acqua_microsd_holder.gif"/>

##Metallic shield for harsh environment

If you plan to use Acqua A5 in an  electromagnetic noisy environment (for example
near DC motors) it is possible to place a metallic shield made by Wurth Elektronik
to better protect the board from external EMI.

This shield is composed by two parts:

* a metallic open frame to be welded to the board 
* a removable metallic cover

<img width="320px" src="./acqua_with_shield.jpg"/>

@include='software_features'

<a name="acqua_devkit"></a>
<a name="evaluation_kit"></a>
<a name="berta_a5_ext"></a>
## Evaluation boards for Acqua A5 SoM

<a name="BERTA-A5-EXT"></a>
### Berta A5 extended

<abstract>
Evaluation boards for Acqua A5 Linux Embedded SoM with power supply section,
ethernet ad USB connectors
</abstract>

<img class="img-responsive center-block" width="40%" src="./BERTA-A5-EXT.jpg">

### Features

* Ethernet 10/100
* 2 USB 2.0 host hi-speed port
* 1 USB 2.0 device hi-speed port or USB 2.0 host hi-speed port or placement
for a [WIFI-2 WiFi module](/WIFI-2). 
* Power supply at 5 volt DC via miniUSB connector
* Placement for [Acqua A5 SoM](/acqua)
* All the Acqua lines not used by the on-board components are available
on pads pitch 2.54 mm (100mils)
* DPI port placement
* Size 10x10 cm
* [Schematic in pdf format](/download/schematics/schematic_berta_a5_ext.pdf)
* <a href = "/acqua_devkit#BERTA-A5-EXT" >More info</a> 

<a name="berta_a5_basic"></a>
<a name="BERTA-A5-BASIC"></a>
### Berta A5 basic breakout board

<abstract>
Breakout and evaluation boards for Acqua A5 Linux Embedded System on Module
</abstract>

<img class="img-responsive center-block" width="40%" src="./BERTA-A5-BASIC.jpg">

### Features

* Placement for [Acqua A5 SoM](/acqua)
* All the Acqua lines are available on pads pitch 2.54 mm (100mils)
* DPI port placement
* Size 10x10 cm
* <a href = "/acqua_devkit#BERTA-A5-BASIC">More info</a>