MAS Elettronica SARA Instructions for use

SARA Hardware User Manual VERSION 1.0
SARA
Single Board Computer
Hardware User Manual

Revision History:
Doc. Version
SARA Version
Date
Change
V1.0
REV1
2020-04-20
Initial Version

SARA Hardware User Manual VERSION 1.0
Table of Contents
Chapter 1 Product Overview..........................................................................................4
1.1.1 Hardware.......................................................................................................4
1.1.2 Software ........................................................................................................4
Chapter 2 Hardware System ..........................................................................................6
2.3.1 Connector Locations .....................................................................................8
2.3.2 Core Module Interface (CN3).......................................................................9
2.3.3 Ethernet Interface (CN4).............................................................................18
2.3.4 Expansion Interface (CN5) .........................................................................19
2.3.5 TF Interface (CN6)......................................................................................21
2.3.6 Debug Interface (CN7) ...............................................................................22
2.3.7 LCD Interface (CN8) ..................................................................................22
2.3.8 USB HOST Interface (CN11) .....................................................................25
2.3.8 Expansion Interface (CN12) .......................................................................26
2.3.9 Power In Interface (CN1)............................................................................28
2.3.10 SARA Pin Functional................................................................................29
2.4.1 Electrical Characteristics ............................................................................30
2.4.2 Mechanical Characteristics .........................................................................31

Chapter 1 Product Overview
1.1 Introduction
1.1.1 Hardware
The single board computer SARA which has an expansion board to carry the AURA
i.MX6ULL is one of our design of the base plate . The flexible design allows the fast
and easy way of realizing and upgrading the controller’s capabilities. In additional to
those features offered by AURA i.MX6ULL, the SARA features 6 serial ports (6
TTL), 2 USB Host, 1 Ethernet ports, CAN, PWM, LCD, Touch screen, I2S, I2C, SPI,
GPIOs, RTC and more other peripherals.
The single board targets a wide range of applications, including: HMIs, Digital Signage,
POS, Data Terminal, Medical Devices, Navigation, Industrial Automation,
Entertainment system, Thin Clients, Robotics, Game Console and much more.
1.1.2 Software
The SARA is a ready-to-run platform to support for Linux 4.x, operating systems.
If you care about other Operating System, For more information contact our support.

SARA Hardware User Manual VERSION 1.0
1.2 Product Overview
The following sections list out all the porduct features.
Name
SARA
SARA
SARA
Part Code
SRAS0050
SRAS0060
SRAS0080
CPU Name
IMX6ULL
IMX6ULL
IMX6ULL
CPU Type
ARM Cortex™-A7
ARM Cortex™-A7
ARM Cortex™-A7
CPU Clock
1x
1x
1x
CPU Frequency
800MHz
800MHz
800MHz
RAM DDR3
Micron 512MB@16bit*1
Micron 256MB@16bit*1
Micron 512MB@16bit*1
Flash
GB@8bit*1
eMMC 8GB@8bit*1
eMMC 4GB@8bit*1
PMU
PF3000
PF3000
PF3000
Size
100 x 85 x 19mm
100 x 85 x 19mm
100 x 85 x 19mm
Temperature
0° 70° C
0° 70° C
-0° 70° C
Support OS
Linux 4.X
Linux 4.X
Linux 4.X

Chapter 2 Hardware System
2.1 Block Diagram
Figure 1 SARA Block Diagram
2.2 Main Features
SARA provides the following features and communication interfaces:
■1x RJ45 Ethernet (10/100 Mbit)
■2x USB 2.0 port through on board USB HUB
■1x TF 24-bit
■1x DDR3 STD connector
■1x Digital RGB interface (up to 16 bit colour)
■2x expansion connector with 4x UART (3.3V TTL), 1x I2C, 2x SPI, 4x PWM, 1x
MCASP, 29x GPIOs

SARA Hardware User Manual VERSION 1.0
■1x Debug UART (3.3V TTL)
■1x DC-IN jack with 9.6~14.4V
■LEDs

2.3 Hardware Interfaces
2.3.1 Connector Locations
Figure 3 SARA Interface

SARA Hardware User Manual VERSION 1.0
2.3.2 Core Module Interface (CN3)
Type: DDR3 SO-DIMM
Pin
Signal name
Description
I/O
Power rail
Note
1
VBAT
5V main power supply
P
5V
2
GND
Digital ground
GND
3
VBAT
5V main power supply
P
5V
4
GND
Digital ground
GND
5
VBAT
5V main power supply
P
5V
6
GND
Digital ground
GND
7
VBAT
5V main power supply
P
5V
8
GND
Digital ground
GND
9
NC
Not connected
10
NC
Not connected
11
NC
Not connected
12
NC
Not connected
13
GND
Digital ground
GND
14
VIO_3V3
3.3V main power supply
P
3.3V
15
NC
Not connected
16
VIO_3V3
3.3V main power supply
P
3.3V
17
NC
Not connected
18
NC
Not connected
19
VBATBAKUP
RTC backup power supply
P
3V

Pin
Signal name
Description
I/O
Power rail
Note
20
GND
Digital ground
GND
21
NC
Not connected
22
GND
Digital ground
GND
23
USB1_VBUS
USB1 power supply
P
5V
24
NC
Not connected
25
USB1_ID
Use this pin to detect the ID pin if you use USB
OTG.
I
5V
26
NC
Not connected
27
GPIO_5_4
GPIO
O
3V
28
USB0_ID
Use this pin to detect the ID pin if you use USB
OTG.
I
5V
29
USB1_DM
Negative differential USB signal
I/O
5V
30
GPIO_5_3
GPIO
O
3V
31
USB1_DP
Positive differential USB signal
I/O
5V
32
USB_OTG1_DN
Negative differential USB signal
I/O
5V
33
GND
Digital ground
GND
34
USB_OTG1_DP
Positive differential USB signal
I/O
5V
35
ETH1_TD+
Transmit Data+
I/O
36
GND
Digital ground
GND
37
ETH1_TD-
Transmit Data-
I/O
38
GND
Digital ground
GND
39
NC
Not connected
40
SD_MMC0_DAT0
MMC/SD/SDIO data bus
I/O
3.3V