Vantron VT-SBC-3568 User manual

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VT-SBC-3568 Single Board Computer
User Manual
Version: 1.3
© Vantron Technology, Inc. All rights reserved.

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Revision History
No. Version Description Date
1 V1.0 First release Jan. 14, 2022
2 V1.1 Updated pinout description of GPIO Jun. 16, 2022
3 V1.2 Added a chapter for Yocto project development Mar. 3, 2023
4 V1.3
Added Android system description and updated
the typesetting
Jun. 2, 2023

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Table of Contents
Foreword ...............................................................................................................................................................1
CHAPTER 1 INTRODUCTION .......................................................................................................... 5
1.1 Product Overview..............................................................................................................................6
1.2 Terminology ........................................................................................................................................6
1.3 Block Diagram ....................................................................................................................................7
1.4 Specifications......................................................................................................................................8
1.5 Operating system...............................................................................................................................9
1.6 Mechanical Dimensions...................................................................................................................9
1.7 Power Supply and Consumption....................................................................................................9
1.8 Environmental Specifications .........................................................................................................9
CHAPTER 2 CONNECTOR DESCRIPTION.......................................................................................10
2.1 Product Layout ................................................................................................................................ 11
2.2 Memory and Storage..................................................................................................................... 11
2.2.1 LPDDR4 RAM ................................................................................................................................... 11
2.2.2 eMMC Flash..................................................................................................................................... 11
2.2.3 EEPROM............................................................................................................................................ 11
2.3 Identification of Pin 1 .................................................................................................................... 12
2.4 Connectors and Jumpers .............................................................................................................. 12
2.4.1 Power input (1) ............................................................................................................................... 12
2.4.2 J23 Ethernet port (2)...................................................................................................................... 13
2.4.3 J13 Wi-Fi and Bluetooth (3) ......................................................................................................... 13
2.4.4 J9 HDMI (4) ...................................................................................................................................... 13
2.4.5 J11 LVDS (5)...................................................................................................................................... 13
2.4.6 J12 Backlight connector (6).......................................................................................................... 15
2.4.7 J10 MIPI DSI (7)............................................................................................................................... 15
2.4.8 J8 MIPI CSI (8).................................................................................................................................. 16
2.4.9 J22 I2C (9).......................................................................................................................................... 18
2.4.10 U40 USB 2.0 Type-A (10)............................................................................................................... 18
2.4.11 J3/J4/J5 USB 2.0 (11) ..................................................................................................................... 19
2.4.12 J6 USB 3.0 (12) ................................................................................................................................ 19
2.4.13 J7 USB 2.0 Type-C (13)................................................................................................................... 19
2.4.14 J21 GPIO (14)................................................................................................................................... 20
2.4.15 J20 40-pin header (15) .................................................................................................................. 21
2.4.16 J17 M.2 Key B slot (16).................................................................................................................. 22
2.4.17 J16 Audio jack (17) ......................................................................................................................... 23
2.4.18 J15 Speaker connector (18).......................................................................................................... 24
2.4.19 Buttons (19-21) ............................................................................................................................... 24
2.4.20 J18 Micro SIM (22) ......................................................................................................................... 24
CHAPTER 3 ANDROID SYSTEM MANUAL .....................................................................................25
3.1 Enable Developer Options............................................................................................................ 26
3.2 ADB Setup ........................................................................................................................................ 26
3.3 App Installation via ADB Commands ......................................................................................... 28
3.3.1 Prerequisites.................................................................................................................................... 28
3.3.2 App installation............................................................................................................................... 29
CHAPTER 4 DEBIAN SYSTEM MANUAL ........................................................................................30

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4.1 Interface Definition........................................................................................................................ 31
4.1.1Serial port......................................................................................................................................... 31
4.1.2 USB interface................................................................................................................................... 31
4.1.3 CAN .................................................................................................................................................... 32
4.1.4 GPIO................................................................................................................................................... 33
4.2 Ethernet............................................................................................................................................ 33
4.3 Wi-Fi .................................................................................................................................................. 34
4.4 Cellular Network............................................................................................................................. 36
4.5 RTC ..................................................................................................................................................... 39
4.6 Watchdog Timer ............................................................................................................................. 39
4.7 Firmware Upgrade in Windows Environment ......................................................................... 40
4.7.1 Prerequisites.................................................................................................................................... 40
4.7.2 System flashing ............................................................................................................................... 40
4.8 Firmware Upgrade in Ubuntu Environment............................................................................. 43
4.8.1 Prerequisites.................................................................................................................................... 43
4.8.2 Image flashing ................................................................................................................................. 43
CHAPTER 5 YOCTO PROJECT DEVELOPMENT .............................................................................. 44
5.1 Build Environment.......................................................................................................................... 45
5.1.1 Prerequisites.................................................................................................................................... 45
5.1.2 Dependency Installation ............................................................................................................... 45
5.1.3 SDK installation ............................................................................................................................... 45
5.1.4 Test and verification....................................................................................................................... 46
5.1.5 Compiling “Hello World” .............................................................................................................. 47
5.2 Image flashing ................................................................................................................................. 48
5.2.1 Prerequisites.................................................................................................................................... 48
5.2.2 Hardware connection.................................................................................................................... 48
5.2.3 Preparation of the firmware package........................................................................................ 49
5.2.4Image flashing ................................................................................................................................. 49
CHAPTER 6 DISPOSAL AND WARRANTY ......................................................................................51
6.1 Disposal............................................................................................................................................. 52
6.2 Warranty........................................................................................................................................... 53

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Foreword
Thank you for purchasing VT-SBC-3568 single board computer (“the Board” or “the Product”).
This manual intends to provide guidance and assistance necessary on setting up, operating or
maintaining the Product. Please read this manual and make sure you understand the
functionality of the Product before putting it into use.
Intended Users
This manual is intended for:
•Embedded software developer
•Custom development software engineer
•Other technically qualified personnel
Copyright
Vantron Technology, Inc. (“Vantron”) reserves all rights of this manual, including the right to
change the content, form, product features, and specifications contained herein at any time
without prior notice. An up-to-date version of this manual is available at www.vantrontech.com.
The trademarks in this manual, registered or not, are properties of their respective owners.
Under no circumstances shall any part of this user manual be copied, reproduced, translated,
or sold. This manual is not intended to be altered or used for other purposes unless otherwise
permitted in writing by Vantron. Vantron reserves the right of all publicly released copies of
this manual.
Disclaimer
While all information contained herein has been carefully checked to assure its accuracy in
technical details and typography, Vantron does not assume any responsibility resulting from
any error or features of this manual, nor from improper uses of this manual or the software.
It is our practice to change part numbers when published ratings or features are changed, or
when significant construction changes are made. However, some specifications of the Product
may be changed without notice.

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Technical Support and Assistance
Should you have any question about the Product that is not covered in this manual, contact
your sales representative for solution. Please include the following information in your
question:
•Product name and PO number;
•Complete description of the problem;
•Error message you received, if any.
Vantron Technology, Inc.
Address: 48434 Milmont Drive, Fremont, CA 94538
Tel: [phone]
Email: [e-mail]
Symbology
This manual uses the following signs to prompt users to pay special attention to relevant
information.
Caution for latent damage to system or harm to personnel
Attention to important information or regulations

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General Safety Instructions
The Product is supposed be installed by knowledgeable, skilled persons familiar with local
and/or international electrical codes and regulations. For your safety and prevention of
damage to the Product, please read and observe carefully the following safety instructions
prior to installation and operation. Keep this manual well for future reference.
•Do not disassemble or otherwise modify the Product. Such action may cause heat
generation, ignition, electronic shock, or other damages including human injury, and may
void your warranty.
•Keep the Product away from heat source, such as heater, heat dissipater, or engine casing.
•Do not insert foreign materials into any opening of the Product as it may cause the Product
to malfunction or burn out.
•To ensure proper functioning and prevent overheating of the Product, do not cover or
block the ventilation holes of the Product.
•Follow the installation instructions with the installation tools provided or recommended.
•The use or placement of the operation tools shall comply with the code of practice of such
tools to avoid short circuit of the Product.
•Cut off the power before inspection of the Product to avoid human injury or product
damage.

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Precautions for Power Cables and Accessories
Use proper power source only. Make sure the supply voltage falls within the specified
range.
Place the cables properly at places without extrusion hazards.
There is a coin cell battery for powering the RTC. Therefore, please avoid short circuit of
the battery during transportation or operation at high temperatures.
Cleaning instructions:
•Power off before cleaning the Product
•Do not use spray detergent
•Clean with a damp cloth
•Do not try to clean exposed electronic components unless with a dust collector
Power off and contact Vantron technical support engineer in case of the following faults:
•The Product is damaged
•The temperature is excessively high
•Fault is still not solved after troubleshooting according to this manual
Do not use in combustible and explosive environment:
•Keep away from combustible and explosive environment
•Keep away from all energized circuits
•Unauthorized removal of the enclosure from the device is not allowed
•Do not change components unless the power cable is unplugged
•In some cases, the device may still have residual voltage even if the power cable is
unplugged. Therefore, it is a must to remove and fully discharge the device before
replacement of the components.

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CHAPTER 1 INTRODUCTION

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1.1 Product Overview
VT-SBC-3568 single board computer is based on Rockchip RK3568 processor that integrates
quad-core ARM Cortex-A55 CPU and Mali G52 GPU to provide optimized performance at
lower power consumption, and offer high-quality video encoding and decoding for better
display performance.
While both wired and wireless network accesses are available, user data is kept safe and
secure in transmission. Meanwhile, VT-SBC-3568 provides a range of customer expansion
options to meet the requirements of different application purposes, especially in industrial
IoT scenarios.
Featuring high flexibility and high performance, VT-SBC-3568 could work under extreme
environments at industrial-grade temperatures ranging from 0℃to +60℃, making it a
reliable industrial IoT solution.
1.2 Terminology
Terminology Description
NC No connection
VCC
Voltage common collector
GND
Ground
/
Active low signal
+
Positive of difference signal
-
Negative of difference signal
I
Input
O
Output
I/O
Input/output
P
Power or ground
A
Analog
OD
Open drain
CMOS
3.3 V CMOS
LVCMOS
Low Voltage CMOS
LVTTL
Low Voltage TTL
3.3V
3.3 V signal level
5V
5V signal level
USB
5V tolerant signal
PCIe
PCI Express signal, not 3.3 V tolerant
MMC
Multimedia Card

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1.3 Block Diagram
R ockchip
R K 3568
C P U : O c ta -core C ortex-
A 55，2.0G H z
G PU: M a li-G 52-2E E
I2 C 0
P M IC
RK809-5
P ow erR ail
eM M C 5.1,
16G B
EMMC
2Kbit EEPRO M
LPDDR4
512M bx32 DDR
SDIO1
2x20x2.54m m
I2C 5_M 0
PTN 3460BS
eD P
U A R T 2_M 0 for D e bug
W iF i & B T 5 .0
AP6256
802.11 a/b/g/n/ac
U A R T 1_M 0
W iF i & B T
ANT
USB3_OTG0
Buttonx1
S leep/W ake up
T o system 5 V
1x4x2.54m m
M AIN BOARD
LPD D R 4x
1G B *32b
12xG P IO ForR elay and P assive C ontacts
I2 S 1
DC/DC
3.3V/3A
DC/DC
5V/3A
HDM I R J45
U S B3.0 Type-A
U S B2.0 Type-A
CAN0_M1
CAN1_M1
U AR T3_M 1 R S232-1
U S B2.0 Type-C
D C IN
1x4x2.0m m
o r
Pow erJack
S ystem P ow e r 5V
LVDS CON TP CON
PHY
YT8511C
RGMII
USB HUB
U S B2514
1x4x2.0m m
1x4x2.0m m
2x10x2.0m m
1x2x2.0m m
TPA 3110D 2P
WP
A u d io
12xGPIOs
U SB
To TP
1x6x 2 .0 m m
12V F orB acklight
MIPI CON Cam era C O N
M IP I 4Lane
M IPI4Lane
M .2 C on
For4G /LTE
PCIe/SATA/Q SG M II
3.5m m
Audio Jack
H eadphone
U SB 2
_HOST2
12V/5A
USB3_HOST1
R J45 W ith internalM agnetics Connector
USB 2_HOST3
H D M I 2 .0
GM A
C1
U AR T4_M 1 R S232-2
U AR T2_M 1 R S232-3(DEBUG)
U AR T9_M 1 TTL
U AR T6_M 1 R S485-1
U AR T7_M 1 R S485-2
Buttonx1
RESET
RECOVERY
WG
SG M 820B
Buttonx1
AT8340 R TC
I2C 5_M 0

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1.4 Specifications
VT-SBC-3568
System
CPU
RK3568, Quad-core ARM Cortex-A55 MPCore, up to 2.0 GHz
GPU
ARM Mali-G52
Memory
4GB LPDDR4 (Optional: 2GB)
Storage
16GB eMMC V5.1, up to 128GB
2Kb EEPROM
Communication
Ethernet
1 x RJ45, 10/100/1000Mbps 100Base-T4 (surge suppression)
Cellular
4G/5G (Optional)
Wi-Fi & BT
802.11 a/b/g/n/ac & BT 5.0
Media
Display
Dual LVDS, Resolution up to 1920 x 1080, with backlight connector
(Optional: eDP, Resolution up to 2K)
1 x MIPI DSI
TP
Infrared touch panel (Optional)
HDMI
1 x HDMI 2.0
Camera
1 x 4-lane MIPI CSI
Audio
1 x 3.5mm Audio jack
1 x Speaker, up to 15W
I/Os
Serial
5 x UART (RS232 & RS485)
1 x UART for debug
USB
1 x USB 3.0
3 x USB 2.0
1 x USB 2.0 Type-C
GPIO
24 x GPIO
SIM slot
1 x Micro SIM slot
RTC
Supported
WDT
Supported
Expansion Bus
2 x CAN, without transmitter
1 x I2C for TP
1 x USB 2.0 host for TP
1 x M.2 key B for 4G/5G module or SATA SSD
System Control Button
1 x Reset
1 x Power button
1 x Volume button
Power
Input
12V/3A DC
Software
Operating system
Debian 10, Android 11+
Mechanical
Dimensions
146.02 x 102mm
Cooling mode
Fanless
Environment
Condition
Temperature
Operating: 0°C~+60°C (RK3568), -20°C~+70°C (RK3568J)
Storage: -20°C~+70°C (RK3568), -40°C~+85°C (RK3568J)
Humidity
≤96%RH (Non-condensing)

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1.5 Operating system
VT-SBC-3568 supports Debian 10 and Android 11+ operating systems.
1.6 Mechanical Dimensions
•146.02mm x 102mm
1.7 Power Supply and Consumption
VT-SBC-3568 works with 12V/3A DC power supply.
The power consumption of the Board is 30W at the maximum. It should be pointed out that
power consumption is largely determined by the RAM, storage capacity, and other
configurations of the board.
1.8 Environmental Specifications
VT-SBC-3568 works at a temperature ranging from 0℃to +60℃(for 3568J: -20℃to +70℃)
and is designed to be stored at a temperature ranging from -20℃to +70℃(for 3568J: -
40°C~+85°C) and at relative humidity of no more than RH 96% for non-condensing purpose.

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CHAPTER 2 CONNECTOR DESCRIPTION

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2.1 Product Layout
The board I/Os will be described in detail in 2.4 Connectors and Jumpers following the
sequencing numbers provided here.
2.2 Memory and Storage
2.2.1 LPDDR4 RAM
VT-SBC-3568 is equipped with a 4GB LPDDR4 RAM by default, and users also have the option of
2GB RAM.
2.2.2 eMMC Flash
VT-SBC-3568 provides an eMMC 5.1 flash up to 128 GB, and the default capacity is 16GB.
It is used as the default boot and storage device.
2.2.3 EEPROM
VT-SBC-3568 provides a 2Kb EEPROM to store hardware configuration information.
(3)
Wi-Fi & BT
(7) MIPI DSI
(8) MIPI CSI
(15) Header (GPIO, CAN,
UART)
(1) DC in
(17) Audio
(13) USB Type-C
(12) USB 3.0
(4) HDMI
(2) ETH
(10) USB 2.0
(18) Speaker
(11) USB 2.0
(11) USB 2.0
(14) GPIO
(1) DC in
(21) Reset
(19) ON/OFF
(20) Volume
(11) USB for TP
(6) Backlight
(5) LVDS
(16) M.2
(9) I2C for TP
(22) Micro SIM
slot at back

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2.3 Identification of Pin 1
Unless otherwise stated, pin 1 of a connector is seated on a square pad that is different
from the round pads used for other pins. Sometimes, pin 1 is next to a trigonal mark on
the board. When there are two rows of pins on a connector, the row with pin 1 is
composed of odd numbers and the other is composed of even numbers.
Usually, there will be numbers or marks next to the pins of a connector on the board to
indicate the pinouts.
2.4 Connectors and Jumpers
This section is going to brief the connectors/jumpers on the Board with corresponsive
pinout description.
2.4.1 Power input (1)
VT-SBC-3568 provides a 4-pin power connector and a power jack to supply power for the
Board.
Pinout description of the 4-pin power connector:
Pin Name Type Description
1
+VDC
P
DC-IN POWER +
2
+VDC
P
DC-IN POWER +
3
-VDC
P
DC-IN POWER -
4
-VDC
P
DC-IN POWER -
1

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2.4.2 J23 Ethernet port (2)
VT-SBC-3568 offers an RJ45 Ethernet jack with two LEDs, green for activity indication and
yellow for link indication. The port supports 10/100/1000 Mbps transmission rate.
2.4.3 J13 Wi-Fi and Bluetooth (3)
VT-SBC-3568 offers an AP6256 1T1R combo SiP module, combining Wi-Fi 802.11
a/b/g/n/ac and Bluetooth 5.0. There is an antenna interface next to the module for
connecting the Wi-Fi & Bluetooth antenna.
2.4.4 J9 HDMI (4)
VT-SBC-3568 offers a standard HDMI Type-A interface for image output. The pinout
description of the interface is in line with the pin assignment of standard HDMI Type-A
interface.
2.4.5 J11 LVDS (5)
VT-SBC-3568 offers a dual LVDS interface to connect high-definition displays (resolution up
to 1920 x 1080).
Specifications: 1 x 40，0.5mm, 0.5A, 1.00mm (H), male, RA, SMT, RoHS
Pinout description:
Pin
Name
Type
Description
1
PANEL_BL_PWM
O
LCD backlight PWM control output
2
PANEL_BKLTEN
O
LCD backlight power control output
3
LVDS_B_D3+
O
LVDS B Lane3 +
4
LVDS_B_D3-
O
LVDS B Lane3 -
5
LVDS_B_CLK+
O
LVDS B CLK+
6
LVDS_B_CLK-
O
LVDS B CLK-
7
NC
8
LVDS_B_D2+
O
LVDS B Lane2 +
9
LVDS_B_D2-
O
LVDS B Lane2 -
10
LVDS_B_D1+
O
LVDS B Lane1 +
11
LVDS_B_D1-
O
LVDS B Lane1 -
1
40

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12
SEL68
O
13
NC
14
eDP_HPD
I
Hot Plug Detect signal
15
LVDS_B_D0+
O
LVDS B Lane0 +
16
LVDS_B_D0-
O
LVDS B Lane0 -
17
LVDS_DDC_DATA
I/O
I2C_SDA
18
LVDS_DDC_CLK
O
I2C_SCL
19
GND
P
Ground
20
LVDS_A_D3+
O
LVDS A Lane3 +
21
LVDS_A_D3-
O
LVDS A Lane3 -
22
GND
P
Ground
23
LVDS_A_CLK+
O
LVDS A CLK +
24
LVDS_A_CLK-
O
LVDS A CLK -
25
GND
P
Ground
26
LVDS_A_D2+
O
LVDS A Lane2 +
27
LVDS_A_D2-
O
LVDS A Lane2 -
28
GND
P
Ground
29
LVDS_A_D1+
O
LVDS A Lane1 +
30
LVDS_A_D1-
O
LVDS A Lane1 -
31
GND
P
Ground
32
LVDS_A_D0+
O
LVDS A Lane0 +
33
LVDS_A_D0-
O
LVDS A Lane0 -
34
GND
P
Ground
35
NC
36
NC
37
LCD_VDD
P
Power supply for LCD
38
LCD_VDD
P
Power supply for LCD
39
LCD_VDD
P
Power supply for LCD
40
LCD_VDD
P
Power supply for LCD

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2.4.6 J12 Backlight connector (6)
VT-SBC-3568 offers a backlight connector that is designed to connect a backlight to
increase readability of the LCD in low light conditions.
Specifications: 1 x 6, 2.0mm, 2A, 6mm (H), male, RA, -25℃～85℃, THR, RoHS
Pinout description:
Pin Name Type Description
1
LCD_BLK
P
Power supply 12V for backlight
2
LCD_BLK
P
Power supply 12V for backlight
3
PANEL_BKLTEN
O
LCD backlight power control output
4
PANEL_BL_PWM
O
LCD backlight PWM control output
5
GND
P
Ground
6
GND
P
Ground
2.4.7 J10 MIPI DSI (7)
VT-SBC-3568 offers a 4-lane MIPI DSI connector for connecting displays.
Specifications: 1 x 31, 0.3mm, 1.0mm(H), RA, Bot, WDT, SMT, RoHS
Pinout description:
Pin Name Type Description
1
LED+
P
Power supply for backlight
2
LED+
P
Power supply for backlight
3
LED+
P
Power supply for backlight
4
NC
5
LED-
P
Feedback for current of backlight
6
LED-
P
Feedback for current of backlight
7
LED-
P
Feedback for current of backlight
8
LED-
P
Feedback for current of backlight
9
GND
P
Ground
10
GND
P
Ground
1
1

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11
MIPI_D2P
O
MIPI DSI Lane2 +
12
MIPI_D2N
O
MIPI DSI Lane2 -
13
GND
P
Ground
14
MIPI_D1P
O
MIPI DSI Lane1 +
15
MIPI_D1N
O
MIPI DSI Lane1 -
16
GND
P
Ground
17
MIPI_CLK+
O
MIPI DSI CLK+
18
MIPI_CLK-
O
MIPI DSI CLK-
19
GND
P
Ground
20
MIPI_D0P
O
MIPI DSI Lane0 +
21
MIPI_D0N
O
MIPI DSI Lane0 -
22
GND
P
Ground
23
MIPI_D3P
O
MIPI DSI Lane3 +
24
MIPI_D3N
O
MIPI DSI Lane3 -
25
GND
P
Ground
26
ID
I
LCD ID
27
RST_LCD
O
LCD RESET
28
NC
29
VCCIO_1V8
P
power supply 1.8V
30
VCC3V3_LCD
P
power supply 3.3V
31
VCC3V3_LCD
P
power supply 3.3V
2.4.8 J8 MIPI CSI (8)
VT-SBC-3568 offers a 4-lane MIPI CSI connector for connecting cameras.
Specifications: 1 x 31, 0.3mm, 1.0mm(H), RA, Bot, WDT, SMT, RoHS
Pinout description:
Pin Name Type Description
1
GND
P
Ground
2
MIPI_CSI_D3N
A
MIPI CSI Lane3 -
3
MIPI_CSI_D3P
A
MIPI CSI Lane3 +
4
GND
P
Ground
5
MIPI_CSI_D2N
A
MIPI CSI Lane2 -
6
MIPI_CSI_D2P
A
MIPI CSI Lane2 +
1