Advantech RSB-3720 User manual

User Manual
RSB-3720
NXP i.MX8M Plus Cortex®-A53
2.5" SBC with UIO40-Express

RSB-3720 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2020
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to improve the products described in this manual at any time without notice. No part
of this manual may be reproduced, copied, translated, or transmitted in any form or
by any means without the prior written permission of Advantech Co., Ltd. The infor-
mation provided in this manual is intended to be accurate and reliable. However,
Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements
of the rights of third parties that may result from its use.
Acknowledgments
Arm is a trademark of Arm Corporation.
NXP is a trademark of NXP Semiconductors.
All other product names or trademarks are properties of their respective owners.
Product Warranty (2 years)
Advantech warrants the original purchaser that each of its products will be free from
defects in materials and workmanship for two years from the date of purchase.
This warranty does not apply to any products that have been repaired or altered by
persons other than repair personnel authorized by Advantech, or products that have
been subject to misuse, abuse, accident, or improper installation. Advantech assumes
no liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most
customers never need to use our repair service. If an Advantech product is defective,
it will be repaired or replaced free of charge during the warranty period. For out-of-
warranty repairs, customers will be billed according to the cost of replacement mate-
rials, service time, and freight. Please consult your dealer for more details.
If you believe your product to be defective, follow the steps outlinedbelow:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages displayed when the prob-
lem occurs.
2. Call your dealer and describe the problem. Please have your manual,product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain a return merchandizeauthori-
zation (RMA) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a completed Repair and Replacement
Order Card, and a proof of purchase date (such as a photocopy of yoursales
receipt) into a shippable container. Products returned without a proof of pur-
chase date are not eligible for warranty service.
5. Write the RMA number clearly on the outside of the package and ship the pack-
age prepaid to your dealer.
Part No. 2006372000 Edition 1
Printed in China April 2021

iii RSB-4710 User Manual
Declaration of Conformity
FCC Class B
This equipment has been tested and found to comply with the limits for a Class B dig-
ital device, pursuant to part 15 of the FCC Rules. These limits are designed to pro-
vide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Opera-
tion of this equipment in a residential area is likely to cause harmful interference. In
such cases, users are required to correct the interference at their own expense.
Packing List
Before installation, ensure that the following items have been shipped:
1 x RSB-3720 SBC (With Heat Sink: 1970004819T001)
Safety Precautions – Static Electricity
Follow this simple precaution to protect yourself from harm and the products from
damage:
To avoid electrical shock, always disconnect the power from the PC chassis
before manual handling. Do not touch any components on the CPU card or
other cards when the PC is powered on.

RSB-3720 User Manual iv
Safety Instructions
1. Read these safety instructions carefully.
2. Retain this user manual for future reference.
3. Disconnect the equipment from all power outlets before cleaning. Use onlya
damp cloth for cleaning. Do not use liquid or spray detergents.
4. For pluggable equipment, the power outlet socket must be located nearthe
equipment and easily accessible.
5. Protect the equipment from humidity.
6. Place the equipment on a reliable surface during installation. Dropping or letting
the equipment fall may cause damage.
7. The openings on the enclosure are for air convection. Protect theequipment
from overheating. Do not cover the openings.
8. Ensure that the voltage of the power source is correct before connectingthe
equipment to a power outlet.
9. Position the power cord away from high-traffic areas. Do not place anything over
the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source
to avoid damage from transient overvoltage.
12. Never pour liquid into an opening. This may cause fire or electrical shock.
13. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
14. If any of the following occurs, have the equipment checked by qualifiedservice
personnel:
– The power cord or plug is damaged.
– Liquid has penetrated the equipment.
– The equipment has been exposed to moisture.
– The equipment is malfunctioning, or does not operate according to theuser
manual.
– The equipment has been dropped and damaged.
– The equipment shows obvious signs of breakage.
DISCLAIMER: These instructions are provided according to IEC 704-1 standards.
Advantech disclaims all responsibility for the accuracy of any statements contained
herein.
Ordering Information
Part No. Description
RSB-3720CD-BCA1E 2.5" UIO SBC NXP i.MX8M Plus Dual, 4GB, 0~60°C
RSB-3720WD-BCA1E 2.5" UIO SBC NXP i.MX8M Plus Dual, 4GB, -40~85°C
RSB-3720CQ-ACA1E 2.5" UIO SBC NXP i.MX8M Plus Quad, 6GB, 0~60°C
RSB-3720WQ-ACA1E 2.5" UIO SBC NXP i.MX8M Plus Quad, 6GB, -40~85°C

v RSB-3720 User Manual
Optional Accessories
Part No. Description
96PSA-A36W12W7-5 ADP A/D 100-240V 36W 12V C6 LOCK DC JACK 62368
1700001524 Power Cord 3P UL 10A 125V 180cm
170203183C Power Cord 3P Europe (WS-010+WS-083) 183cm
170203180A Power Cord 3P UK 2.5A/3A 250V 1.83M
1700008921 Power Cord 3P PSE 183cm
1700100250 Debug cable 10P-2.0/D-SUB 9P(M) 25CM
1700019474 D-SUB 9P(F)/D-SUB 9P(F) RS232/RS485 100c
1700031429-01 Line out cable
1700026878-01 Mic in cable
96LEDK-A070WV40NB1 LVDS 7" Panel G070VW01 V0 (VDD: 3.3V, Backlight Power:
12V)
1700021883-01 LVDS Cable
1700032155-01 LVDS BKLT Cable
EWM-W163M201E 802.11 a/b/g/n/ac,QCA6174A,2T2R,w/BT4.1,M.2 2230
1750008717-01 Dipole Ant. D.B 2.4/5G WIFI 3dBi SMA/M-R BLK
1750007965-01 Antenna Cable R/P SMA (M) to MHF4, 300mm
EWM-C117FL06E* LTE 4G,3G WCDMA/DC-HSPA+, 2G module, MPCI-L280H
1750007990-01 Antenna 4G/LTE full band L=11 cm 50 Ohm
1750006009 Antenna Cable SMA (F) to MHF 1.32 25cm
*Please contact us for suggesting
suitable cellular module for your region.

vii RSB-3720 User Manual
Contents
Chapter 1 General Introduction ..........................1
1.1 Introduction................................................................................................ 2
1.1.1 Product Features........................................................................... 2
1.1.2 Mechanical Specifications ............................................................. 3
1.1.3 Electrical Specifications ................................................................ 3
1.1.4 Environmental Specifications ........................................................ 3
1.1.5 Block Diagram ............................................................................... 4
Chapter 2 Hardware Installation..........................5
2.1 Jumper and Connector Locations ............................................................. 6
2.2 Board Dimensions ..................................................................................... 7
2.3 Jumpers ..................................................................................................... 8
2.3.1 Jumper Description ....................................................................... 8
2.3.2 Jumper List.................................................................................... 8
Table 2.1: Jumper List ................................................................. 8
2.3.3 Jumper Settings ............................................................................ 9
2.4 Connectors .............................................................................................. 13
2.4.1 Connector List ............................................................................. 13
2.4.2 Connector Settings...................................................................... 14
Figure 2.1 Audio Connector ....................................................... 14
Figure 2.2 EDP Connector ......................................................... 15
Figure 2.3 LVDS Connector ....................................................... 16
Figure 2.4 LVDS Backlight Connector ....................................... 17
Figure 2.5 MIPI CSI Connector.................................................. 18
Figure 2.6 Mini PCIe Connector................................................. 19
Figure 2.7 Nano SIM Card ......................................................... 20
Figure 2.8 M.2 Connector .......................................................... 22
Figure 2.9 Micro SD ................................................................... 22
Figure 2.10Power Button and LED Connector............................ 23
Figure 2.11DC Power Jack ......................................................... 23
Figure 2.12COM1 Connector ...................................................... 24
Figure 2.13COM2/Debug Connector .......................................... 24
Figure 2.14HDMI1 Connector ..................................................... 25
Figure 2.15HDMI2 Connector ..................................................... 26
Figure 2.16USB Connector ......................................................... 26
Figure 2.17USB2 Pin Header...................................................... 27
Figure 2.18USB3 Pin Header...................................................... 27
Figure 2.19LAN1 Ethernet Connector......................................... 28
Figure 2.20LAN2 Ethernet Connector......................................... 29
Figure 2.21RTC Battery Connector ............................................ 30
Figure 2.22Internal RS-232 Pin Header...................................... 30
Figure 2.23Internal RS-232/485 Pin Header............................... 31
Figure 2.24Micro USB Connector ............................................... 31
Figure 2.25Reset Button ............................................................. 32
Figure 2.26GPIO Pin Header ...................................................... 32
Figure 2.27SPI Pin Header ......................................................... 33
Figure 2.28I2C Connector........................................................... 33
2.5 LED.......................................................................................................... 34
2.6 Quick Start Guide .................................................................................... 34
2.6.1 Debug Port Connection............................................................... 34
2.6.2 Debug Port Setting ...................................................................... 35
Chapter 3 Software Functionality ..................... 37

RSB-3720 User Manual
vii
3.1 Introduction...............................................................................................38
3.2 Build Environment ....................................................................................38
3.2.1 Install Docker ...............................................................................38
3.2.2 Get Base Image ...........................................................................38
3.2.3 Obtain Android Source Code.......................................................38
3.2.4 Building an Android 7.1.2 image..................................................39
3.3 GPIO ........................................................................................................40
3.4 UART........................................................................................................42
3.4.1 UART ...........................................................................................42
3.4.2 How to Configure RS-232/485 Mode ...........................................42
3.5 Audio ........................................................................................................43
3.6 SD/MMC Card/USB Disk .........................................................................43
3.6.1 Browse the SD .............................................................................43
3.7 HDMI ........................................................................................................44
3.7.1 HDMI Resolution..........................................................................44
3.7.2 HDMI Audio..................................................................................44
3.8 Multiple Display ........................................................................................44
3.8.1 Enter U-Boot Interrupt Mode........................................................45
3.8.2 eDP and HDMI.............................................................................45
3.8.3 HDMI and LVDS ..........................................................................45
3.8.4 LVDS and eDP.............................................................................45
3.8.5 HDMI and DP (HDMI2) ................................................................46
3.8.6 eDP and DP (HDMI2) ..................................................................46
3.8.7 LVDS and DP (HDMI2) ................................................................46
3.9 Network Setup..........................................................................................47
3.9.1 Wi-Fi.............................................................................................47
3.9.2 Bluetooth ......................................................................................49
3.9.3 3G/4G ..........................................................................................50
3.9.4 Ethernet .......................................................................................51
3.10 IIC.............................................................................................................52
Chapter 4 Advantech Services ......................... 53
4.1 RISC Design-In Services..........................................................................54
4.2 Contact Information..................................................................................57
4.3 Global Service Policy ...............................................................................58
4.3.1 Warranty Policy............................................................................58
4.3.2 Repair Process ............................................................................58

Chapter 1
General Introduction
This chapter includes
background information
regarding RSB-3720.

Introduction

Specification

RSB-3720 User Manual x
1.1 Introduction
Powered by NXP's i.MX 8M Plus Processor, which is the first Cortex®-A53 based SoC
integrated with NPU (Neural Processing Unit), RSB-3720 is capable of providing outstanding
Edge AI inference at 2.3 TOPS to perform well on Object Detection as well as Image
Segmentation. To stand on the front of the Edge AI trend, RSB-3720, a compact-sized 2.5"
Single Board Computer is best used for Edge AI Gateway and vision-based system for factory
automation. Upon the standard I/Os on the coastline, RSB-3720 also offers the possibility of
I/O Extension by UIO40-Express to provide flexible I/Os like more USB, COM, LAN and CAN
for each of your specific vertical requirements.
1.1.1 Product Features
1

1.1.2 Mechanical Specifications
Dimensions: 100*72mm
Height: 19mm
Reference Weight: 0.05kg (0.25kg with Heat Sink)
1.1.3 Electrical Specifications
Power Supply Type: DC-in 12V
RTC Battery:
– Typical voltage: 3V
– Normal discharge capacity: 210mAH
1.1.4 Environmental Specifications
Operating Temperature: 0 ~ 60 °C/32 ~ 140 °F; -40 ~ 85 °C/-40 ~ 185 °F
Operating Humidity: 5 ~ 95% relative humidity, non-condensing
Storage Temperature: -40 ~ 85 °C/-40~185 °F
Storage Humidity: 60 °C/140 °F @ 95% RH non-condensing
2 RSB-3720 User Manual

RSB-3720 User Manual xii
5
.
L
8
1.1.5 Block Diagram
NXP i.MX8M Plus
Up to 4x Cortex-A53
Pin Headers
GbE PH x2
AR8035
HDMI
USB2.0
M.2 (Key E) x1
Microchip
USB2514B
PCIe
Audio Codec
SGTL5000
UART2
UART4
RS-232
Transceiver
TI_MAX3243
UIO2
USB2.0
GPIO x2
GPIO x1
LED
SEIKO
S-35390A
GPIO x8
I2C4
RGMII x2
HDMI
Connector
Dual Channel
LVDS
4-LaneMIPI-DSI & LVDS x2
uSDHC2 Micro SD
uSDHC1
USB3
USB4
USB3.0 + USB2.0
Type A Stacking
MINI PCIe
32bits
LPDDR4 eMMC
I2C1
USB3.2 Gen 1
UART1(4-wire)
SAI2
SAI3
12V DC
Jack
4-Lane MIPI-CSI2-1
Connector
DDC
I2C1
I2C2
4-Lane MIPI-CSI2-2
Connector
I2C3
I2C1
RTC
Battery
WDT
TI_MSP430
TPM
ST_ST33H
Microchip
USB2514B
USB1/2/3
COM4
COM2
UART3(4-wire)
RS-
232/422/485
CP339 Backlight
Connector x2
BKLT
Pin
Header
uSDHC3
SIM
Slot
QSPI QSPIA
USB1
USB2
FlexCAN1
FlexCAN2
CAN
Transceiver *
UIO1
*Support CAN-FD in Wide temp. SKUs: RSB-3720WQ/ RSB-3720WD
I2C1 PMIC
NXP_PCA9450CHN
Power
I2C1
Reset
Button
USB3.2 Gen1USB1
(Default configured
as debug console)
3

Chapter 2
Hardware Installation
This chapter provides mechanical
and connector information.

Jumper Information

Connector Information

Mechanical Drawing

Quick Start Guide

RSB-3720 User Manual
4
2.1 Jumper and Connector Locations

5
RSB-3720 User Manual
2.2 Board Dimensions
Chapter 2
Hardware Installation

RSB-3720 User Manual
6
2.3 Jumpers
2.3.1 Jumper Description
Cards can configured by setting jumpers. A jumper is a metal bridge used to close an
electric circuit. It consists of two metal pins and a small metal clip (often protected by
a plastic cover) that slides over the pins to connect them. To close a jumper, connect
the pins with the clip. To open a jumper, remove the clip. Sometimes a jumper will
have three pins labeled 1, 2, and 3. In such cases, connect either pins 1 and 2 or pins
2 and 3.
The jumper settings are schematically depicted in this manual as follows:
A pair of needle-nose pliers may be helpful when working with jumpers. If you have
any doubts about the best hardware configuration for your application, contact your
local distributor or sales representative before making any changes. Generally, only a
standard cable is required to make most connections.
Warning! To avoid damaging the computer, always turn off the power supply
before setting jumpers.
2.3.2 Jumper List

7
RSB-3720 User Manual
2.3.3 Jumper Settings
2.3.3.1 BLP1
2.3.3.2 BLP2
Chapter 2
Hardware Installation

RSB-3720 User Manual
10
2.3.3.3 VDD1
2.3.3.4 SW1

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10
2.4 Connectors
2.4.1 Connector List
Chapter 2
Hardware Installation

RSB-3720 User Manual
11
2.4.2 Connector Settings
2.4.2.1 BAT (RTC Battery CONN.)
RSB-3720 supports 1 2-pin type connector for RTC Battery.
Figure 2.1 BAT (RTC Battery CONN.)
2.4.2.2 BL1 (LVDS Backlight 1)
RSB-3720 supports 1 LVDS Backlight CONN. for each channel, pin definition for the
1
st
channel as below:
Figure 2.1 BL1 (LVDS Backlight 1)

RSB-3720 User Manual
13
2.4.2.3 BL2 (LVDS Backlight 2)
RSB-3720 supports 1 LVDS Backlight CONN. for each channel, pin definition for the
2nd channel as below:
Figure 2.3 BL2 (LVDS Backlight 2)
2.4.2.4 COM1 (COM + CAN Pin Header): (default as debug console)
RSB-3720 supports COM1 Pin Header for 1 4-wires COM port (Can be define as RS-
232/RS-422/RS-485 by S/W setting), default set as RS-232 debug console + 1
CANBus (Supports CAN-FD with industrial temp. SKU: RSB-3720WQ/RSB-3720WD)
pin definition as below:
Figure 2.4 COM1 (COM + CAN Pin Header)