Vantron VT-SBC-RK3568-NT User manual

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VT-SBC-RK3568-NT
Single Board Computer
User Manual
Version: 1.0
© Vantron Technology, Inc. All rights reserved.

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Revision History
No. Version Description Date
1 V1.0 First release Feb. 27, 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 Micro SD Slot.................................................................................................................................... 11
2.2.4 EEPROM ............................................................................................................................................ 11
2.3 Identification of Pin 1..................................................................................................................... 12
2.4 Connector ......................................................................................................................................... 12
2.4.1 J8 USB 2.0 Type-C (1)...................................................................................................................... 12
2.4.2 J2 USB 2.0 Type-A (2) ..................................................................................................................... 12
2.4.3 J12 USB 3.0 Type-A (3)................................................................................................................... 12
2.4.4 J6 Ethernet Jack (4)......................................................................................................................... 12
2.4.5 J4 MIPI DSI (5) .................................................................................................................................. 13
2.4.6 J10/J11 Micro HDMI (6)................................................................................................................. 14
2.4.7 J5 MIPI CSI (7) .................................................................................................................................. 14
2.4.8 J7 Audio jack (8) .............................................................................................................................. 16
2.4.9 J1 GPIO (9) ........................................................................................................................................ 16
2.4.10 U3 Wi-Fi and Bluetooth (3)........................................................................................................... 17
2.4.11 Micro SD slot (11)............................................................................................................................ 17
2.4.12 Debugging holes (12) ..................................................................................................................... 17
2.5 Boot Mode........................................................................................................................................ 18
CHAPTER 3 SOFTWARE DESCRIPTION...................................................................................................... 19
3.1 Interface Definition......................................................................................................................... 20
3.1.1 UART................................................................................................................................................... 20
3.1.2 CAN..................................................................................................................................................... 21
3.1.3 GPIO ................................................................................................................................................... 21
3.1.4 Ethernet............................................................................................................................................. 22
3.1.5 Wi-Fi ................................................................................................................................................... 22
3.1.6 USB ..................................................................................................................................................... 23
CHAPTER 4 DEBIAN SYSTEM UPGRADE ................................................................................................... 24
4.1 Firmware Upgrade in Windows Environment.......................................................................... 25

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4.1.1 Prerequisites .................................................................................................................................... 25
4.1.2 System flashing................................................................................................................................ 25
4.2 Firmware Upgrade in Ubuntu Environment ............................................................................. 27
4.2.1 Prerequisites .................................................................................................................................... 27
4.2.2 System flashing................................................................................................................................ 28
CHAPTER 5 DISPOSAL AND WARRANTY .................................................................................................. 29
5.1 Disposal ............................................................................................................................................. 30
5.2 Warranty ........................................................................................................................................... 31

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Foreword
Thank you for purchasing VT-SBC-RK3568-NT 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.
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.
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
Vantron Technology recently unveiled NiceLit series to its embedded board family that
features an efficient AI processing unit to provide quality computing power for lightweight
AIoT applications.
NiceLit series is powered by Rockchip RK3568/RK3566 processor that integrates quad-core
ARM Cortex-A55 CPU and Mali G52 GPU to provide optimized performance at lower power
consumption. Compact as it is, yet this series provide a range of customer expansion
options and supports multiple operating systems to meet the requirements of different
application purposes.
VT-SBC-RK3568-NT offers two HDMI ports that support extend mode with resolution up to
4K + 1080P to offer optimized display performance.
NiceLit series targets at industrial customization markets of IoT endpoints and software
platforms such as industrial panel PC, trail transit, banking, automotive control center, etc.
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
CK/CLK
Clock
PWM
Pulse-width modulation
MISO
Master in slave out
MOSI
Master out slave in
WP
Write protection

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1.3 Block Diagram
RK3568, Quad-core A55, up
to 2.0GHz
1.0 TOPS NPU
GPU MALI-G52
LPDDR4
4GB
eMMC
64GB
EEPROM
2Kb
LPDDR4
512Mb*32bit
WIFI & Bluetooth
802.11 a/b/g/n/ac
Module AP6256
SDIO
UART
PCM
eMMC5.1
I2C
Ethernet PHY
YT8531H
RJ45
With Transformer
RGMII MDI
1000Mbps
Audio Jack
3.5mm
I2S
Micro
HDMI
HDMI 2.1
Type-C
USB2.0
USB2.0 OTG
DCDC
3.3V 3A/4A
5V/3A
PMIC&DCDC
RK809+DCDC
For Minis ys
2x15x0.5mm MIPI DSI0
2x15x0.5mm MIPI CSI0
2x20x2.54mm
UART
USB 2.0
SPI
I2C
PWM
GPIO+Power ON
Micro-SD Card solt
SDIO 3.0
Debug UART2
1xLoader Test
Point
SRDAC
1xButton
Test Point
Power ON
NiceLit series
2xUSB3.0 Type-A
USB 3.0
OTG 3.0
2xUSB2.0 Type-A
USB 2.0
Micro
HDMI
Ethernet PHY
LT8711UXD
eDP
USB3.0 HUB
GL3523
USB 3.0

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1.4 Specifications
VT-SBC-RK3568-NT
System
CPU
RK3568, Quad-core Cortex-A55, 2.0GHz (Max.)
GPU
Mali-G52
Memory
4GB LPDDR4 (Optional: 8GB)
Storage 64GB eMMC
1 x Micro SD slot
Communication
Ethernet
1 x RJ45, 10/100/1000Mbps (PoE supported)
Wi-Fi & BT
Wi-Fi 2.4GHz/5GHz & BT 5.0
Media Display
1 x Dual-lane MIPI DSI
2 x Micro HDMI, supporting 4K + 1080P
(Extend mode supported)
Camera
1 x MIPI CSI
I/Os
Audio
1 x 3.5mm Combo audio jack
USB
2 x USB 2.0 Host, Type A
2 x USB 3.0 Host, Type A (OTG supported on one)
1 x USB 2.0, Type-C (power in/data transfer/OTG)
GPIO
1 x GPIO
I2C
2 x I
2
C
SPI
2 x SPI
UART
5 x UART
CAN
2 x CAN
POWER_ON
1 x POWER_ON
Antenna
1 x Wi-Fi & BT antenna
Power
Input
5V/3A DC, USB Type-C
Software
Operating system
Android 11, Debian 10
Device management
platform
BlueSphere MDM (Android devices only)
OTA tool
BlueSphere OTA
Mechanical
Dimensions
85mm x 56mm
Weight
55g (±5g)
Environment
Condition
Temperature Operating: -20℃~+70℃
Storage: -40℃~+85℃
Humidity
RH 5%-95% (Non-condensing)

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1.5 Operating system
VT-SBC-RK3568-NT supports Debian 10 and Android 11 operating systems.
1.6 Mechanical Dimensions
•85mm x 56mm
1.7 Power Supply and Consumption
VT-SBC-RK3568-NT works with 5V/3A DC power input supplied via the USB Type-C interface.
The power consumption of the Board is about 5W at working mode. 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-RK3568-NT works at a temperature ranging from -20℃to +70℃and is designed to
be stored at a temperature ranging from -40℃to +85℃and at relative humidity between
5%-95% for non-condensing purpose.

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CHAPTER 2
CONNECTOR DESCRIPTION

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2.1 Product Layout
2.2 Memory and Storage
2.2.1 LPDDR4 RAM
VT-SBC-RK3568-NT is equipped with a 4GB LPDDR4 RAM by default, and users also have the
option of 8GB RAM.
2.2.2 eMMC Flash
VT-SBC-RK3568-NT offers an eMMC 5.1 flash of 64GB. It is used as the default boot and
storage device.
2.2.3 Micro SD Slot
VT-SBC-RK3568-NT implements a Micro SD slot for expansion of RAM/storage capacity. It
supports hot plug of the Micro SD card.
2.2.4 EEPROM
VT-SBC-RK3568-NT provides a 2Kb EEPROM to store hardware configuration information.
(5) MIPI DSI
(9) SPI, I2C, CAN,
UART, GPIO,
POWER_ON
(1) USB 2.0
Type-C
(6) 2 x Micro
HDMI
(7) MIPI CSI
(8) Audio jack
(4) Ethernet
jack
(3) 2 x USB 3.0
Type-A
(2) 2 x USB 2.0
Type-A
(10) Wi-Fi &
BT

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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 Connector
This section is going to brief the connectors/jumpers on the Board with corresponsive
pinout description.
2.4.1 J8 USB 2.0 Type-C (1)
VT-SBC-RK3568-NT is powered up by an external power source via the USB 2.0 Type-C,
which supports USB OTG and data transmission as well.
2.4.2 J2 USB 2.0 Type-A (2)
VT-SBC-RK3568-NT implements two USB 2.0 Type-A ports that are stacked in layers for
connection of peripherals.
2.4.3 J12 USB 3.0 Type-A (3)
VT-SBC-RK3568-NT implements two stacked USB 3.0 Type-A ports, including one that
switches between USB OTG and USB 3.0.
2.4.4 J6 Ethernet Jack (4)
VT-SBC-RK3568-NT has one RJ45 Ethernet jack which conforms to IEEE 802.3u/ab,
supporting 3.3V/2.5V/1.8V RGMII with transmission rate up to 1000Mbps.
The RJ45 Ethernet jack is also IEEE 802.3af (PoE) compliant to work as a power supply
equipment that supplies power to a client device after connecting a PSE module.

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There are two link/activity LED indicators on the Ethernet jack. A solid green indicator
means the network is functioning properly and a blinking amber indicator means there is
data transmission. Otherwise, there is a fault.
2.4.5 J4 MIPI DSI (5)
VT-SBC-RK3568-NT offers a dual-lane MIPI DSI connector for connecting displays.
Specifications: 1 x 30, 0.5mm, 0.5A (Max.), SM T, Vert., RoHS
Pinout description:
Pin Name Type Description
1
MIPI_DSI_GPIO
O
LCD control output, active high (3.3V level)
2
VCC3V3
P
Power supply 3.3V (controllable)
3 MIPI_DSI_PWM O
LCD backlight PWM control output (3.3V
level)
4
VCC3V3
P
Power supply 3.3V(controllable)
5
MIPI_TX_D3P
O
MIPI_DSI differential lane 3 + (3.3V level)
6
GND
P
Ground
7
MIPI_TX_D3N
O
MIPI_DSI differential lane 3 - (3.3V level)
8
MIPI_DSI_SDA
I/O
MIPI_DSI I2C data
9
MIPI_TX_D2P
O
MIPI_DSI differential lane 2 + (3.3V level)
10
MIPI_DSI_SCL
O
MIPI_DSI I2C clock
11
MIPI_TX_D2N
O
MIPI_DSI differential lane 2 - (3.3V level)
12
GND
P
Ground
13
NC
14
MIPI_TX_D0P
O
MIPI_DSI differential lane 0 + (3.3V level)
15
NC
16
MIPI_TX_D0N
O
MIPI_DSI differential lane 0 - (3.3V level)
17
NC
18
GND
P
Ground
19
NC
20 MIPI_TX_CLKP I
MIPI_DSI differential clock lane + (3.3V
level)
1

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21
NC
22 MIPI_TX_CLKN I
MIPI_DSI differential clock lane - (3.3V
level)
23
NC
24
GND
P
Ground
25
NC
26
MIPI_TX_D1P
O
MIPI_DSI differential lane 1 + (3.3V level)
27
NC
28
MIPI_TX_D1N
O
MIPI_DSI differential lane 1 - (3.3V level)
29
NC
30
GND
P
Ground
2.4.6 J10/J11 Micro HDMI (6)
VT-SBC-RK3568-NT implements two Micro HDMI ports supporting extends mode. One of
the ports (J10) supports HDMI 1.4 and HDMI 2.0 to allow 4K video decoding, and the other
(J11) is converted from eDP 1.3 signal to support up to 1080P resolution.
J10 supports: 13.5-600MHz input reference clock, 10-bit color depth (max.), 18Gbps
aggregate bandwidth, up to 1080P @120Hz & 4096 x 2304 @60Hz resolution, 3D video
format, RGB/YUV (max. 10-bit) format, HDCP 1.4/2.2.
J11 supports: 4-lane 2.7Gbps, panel self-refresh (PSR), up to 2560 x 1600 @60Hz resolution,
RGB (max. 10-bit) format.
2.4.7 J5 MIPI CSI (7)
VT-SBC-RK3568-NT implements a MIPI DSI interface for connecting a camera.
Specifications: 1 x 30, 0.5mm, 0.5A (Max.), SM T, Vert., RoHS
1

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Pinout description:
Pin Name Type Description
1
MIPI_CSI_RST
O
Camera reset signal (1.8V level)
2
VCC3V3
P
Power supply 3.3V (controllable)
3
MIPI_CSI_PDN
O
Camera power down
4
I2C4_SDA_M0
I/O
I2C3 data/address (1.8V level)
5
MPI_CSI_DP3
I
MIP_CSI differential lane 3 + (1.8V level)
6
I2C4_SCL_M0
O
I2C3 clock (1.8V level)
7
MIPI_CSI_DN3
I
MIP_CSI differential lane 3 - (1.8V level)
8
GND
P
Ground
9
MIPI_CSI_DP2
I
MIP_CSI differential lane 2 + (1.8V level)
10
MIPI_CSI_CLK
O
Camer clock input (1.8V level)
11
MIPI_CSI_DN2
I
MIP_CSI differential lane 2 - (1.8V level)
12
GND
P
Ground
13
NC
14
MIPI_CSI_CLKP
O
MIP_CSI differential clock + (1.8V level)
15
NC
16
MIPI_CSI_CLKN
O
MIP_CSI differential clock - (1.8V level)
17
NC
18
GND
P
Ground
19
NC
20
MIPI_CSI_DP1
I
MIP_CSI differential lane 1 + (1.8V level)
21
NC
22
MIPI_CSI_DN1
I
MIP_CSI differential lane 1 - (1.8V level)
23
NC
24
GND
P
Ground
25
NC
26
MIPI_CSI_DP0
I
MIP_CSI differential lane 0 + (1.8V level)
27
NC
28
MIPI_CSI_DN0
I
MIP_CSI differential lane 0 - (1.8V level)
29
NC
30
GND
P
Ground

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2.4.8 J7 Audio jack (8)
VT-SBC-RK3568-NT implements a 3.5mm audio jack, supporting left/right stereo sound and
microphone functions. It also supports hook identification. The audio jack uses I2S signal
for communication.
2.4.9 J1 GPIO (9)
VT-SBC-RK3568-NT offer a GPIO header for user development, including 2 x SPI, 2 x I2C, 2
x CAN, and 5 x UART. The power on and debug pins shall be connected for debugging the
Board.
Specifications: 2 x 20, 2.54mm, 3A, Vert, RoHS
Pinout description:
Pin Name Type Description
1
EXT_3V3
P
Power supply 3.3V (controllable)
2
VBUS
P
VBUS power output (uncontrollable)
3
UART8_TX_M1
O
UART8 serial data output (3.3V level)
4
VBUS
P
VBUS power output (uncontrollable)
5
UART8_RX_M1
I
UART8 serial data input (3.3V level)
6
GND
P
Ground
7
SPI3_CS0_M1
I/O
SPI3 CS signal (3.3V level)
8
CAN1_RX_M0
I
CAN1receiving data (3.3V level)
9
GND
P
Ground
10
CAN1_TX_M0
O
CAN1 transmitting data (3.3V level)
11
CAN0_TX_M0
O
CAN0 transmitting data (3.3V level)
12
CAN0_RX_M0
I
CAN0 receiving data (3.3V level)
13
I2C2_SDA_M0
I/O
I2C 2 data (3.3V level)
14
GND
P
Ground
15
I2C5_SDA_M0
I/O
I2C 5 data (3.3V level)
16
I2C2_SCL_M0
O
I2C 2 clock (3.3V level)
17
EXT_3V3
P
Power supply 3.3V (controllable)
18
I2C5_SCL_M0
O
I2C 5 clock (3.3V level)
19
SPI3_MOSI_M1
I/O
SPI3 MOSI (3.3V level)
20
GND
P
Ground
21
SPI3_MISO_M1
I/O
SPI3 MISO (3.3V level)
22
GPIO3_A6_d
I/O
General-purpose input/output (3.3V
level)
23
SPI3_CLK_M1
O
SPI3 clock (3.3V level)
1
2