Rockchip RK3568 EVB User manual

RK3568 EVB
User Guide
Release Version: V1.2
Release Date: 2022.01.25

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd. I
Disclaimer
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Rockchip, and all or part of the products, services or features described in this document may not be within the
scope of your purchase or use. Unless otherwise agreed in the contract, Rockchip Electronics Co., Ltd. makes no
express or implied representations or warranties regarding the contents of this document.
Due to product version upgrades or other reasons, this document will be updated aperiodic. Unless otherwise
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Copyright © Rockchip Electronics Co., Ltd. 2021
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RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd. II
Preface
Overview
This document is intended to introduce the basic functions and hardware characteristics, multi-function
hardware configurations and software debug methods of RK3568 EVB, aiming to help developers to get start with
RK3568 EVB and solution more quickly and correctly.
Product version
The corresponding product version of the document is as below:
Product name
Product version
RK3568 EVB
RK_EVB1_RK3568_DDR4P216SD6_V10_20200908
Intended Audience
This document (this guide) is mainly intended for：
Technical support engineers
Single board hardware development engineers
Embedded software development engineers
Test engineers

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd. III
Revision History
This revision history recorded description of each version.
Revision Date
Version No.
Author
Revision History
2021-02-05
V1.0
WHB
Initial Release
2021-06-24
V1.1
WHB
Detailed description of optimization
2021-09-07
V1.2
WHB
Detailed description of optimization

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd IV
Acronyms
These Acronyms includes the abbreviations of commonly used phrases in this document.
Acronym
Description in English
Description in Chinese
CPU
Central Processing Unit
中央处理器
NPU
Neural Network Processing Unit
神经网络处理器
VPU
Video Processing Unit
视频处理器
DDR
Double Data Rate
双倍速率同步动态随机存储器
eMMC
Embedded Multi Media Card
内嵌式多媒体存储卡
eDP
Embedded Display Port
嵌入式数码音视讯传输接口
HDMI
High Definition Multimedia Interface
高清晰度多媒体接口
I2C
Inter-Integrated Circuit
内部整合电路(两线式串行通讯总线)
I2S
Inter-IC Sound
集成电路内置音频总线
PMIC
Power Management IC
电源管理芯片
LDO
Low Drop Out Linear Regulator
低压差线性稳压器
DCDC
Direct Current to Direct Current
直流电转直流电
CAN
Controller Area Network
控制器局域网络
SARADC
Successive Approximation Register Analog to
Digital Converter
逐次逼近寄存器型模数转换器
UART
Universal Asynchronous Receiver/ Transmitter
通用异步收发传输器
JTAG
Joint Test Action Group
联合测试行为组织
PWM
Pulse Width Modulation
脉冲宽度调制
MIPI
Mobile Industry Processor Interface
移动产业处理器接口
LVDS
Low-Voltage Differential Signaling
低电压差分信号
PMIC
Power Management IC
电源管理芯片
PMU
Power Management Unit
电源管理单元
RK/Rockchip
Rockchip Electronics Co.,Ltd.
瑞芯微电子股份有限公司
USB
Universal Serial Bus
通用串行总线
SATA
Serial Advanced Technology Attachment
串行高级技术附件
PCIe
Peripheral Component Interconnect Express
外围组件快速互连
RGB
Red,Green,Blue；RGB color mode is a color
standard in industry
红绿蓝，RGB色彩模式, 是工业界的
一种颜色标准
VGA
Video Graphics Array
电脑显示视频Figure像标准接口
ADB
Android Debug Bridge
安卓调试桥
IR
Infrared Radiation
红外线
SPDIF
Sony/Philips Digital Interface
索尼/飞利浦数字音频接口
RTC
Real-time clock
实时时钟
RGMII
Reduced Gigabit Media Independent Interface
精简吉比特介质独立接口
WIFI
Wireless Fidelity
无线保真
CIF
Camera Interface
摄像头接口

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd V
Contents
Preface ..................................................................................................................................................................... II
Revision History.....................................................................................................................................................III
Acronyms................................................................................................................................................................IV
Contents................................................................................................................................................................... V
Figures .................................................................................................................................................................. VII
Tables ...................................................................................................................................................................VIII
1 Overview................................................................................................................................................................ 1
1.1 RK3568 Introduction............................................................................................................................... 1
1.2 RK3568 Block Diagram .......................................................................................................................... 1
1.3 System Introduction................................................................................................................................. 2
1.3.1 System Diagram........................................................................................................................................ 2
1.3.2 Functions Overview.................................................................................................................................. 2
1.3.3 Functional Interfaces ................................................................................................................................ 3
1.3.4 Functional Modules Layout ...................................................................................................................... 5
1.4 Components............................................................................................................................................. 6
1.5 Power on, power off and Standby............................................................................................................ 6
1.6 Firmware Upgrade................................................................................................................................... 7
1.6.1 USB Driver Installation ............................................................................................................................ 7
1.6.2 Firmware Upgrade.................................................................................................................................... 7
1.7 Port Debugging........................................................................................................................................ 9
1.7.1 Serial Port Debugging Tool ...................................................................................................................... 9
1.7.2 ADB Debug ............................................................................................................................................ 10
2 Hardware Introduction .......................................................................................................................................11
2.1 EVB Picture............................................................................................................................................11
2.2 Power Diagram...................................................................................................................................... 12
2.3 I2C Address ........................................................................................................................................... 12
2.4 Extension Connectors ............................................................................................................................ 13
2.5 Reference Materials............................................................................................................................... 15
3 EVB Modules Introduction................................................................................................................................ 16
3.1 Power Input............................................................................................................................................ 16
3.2 Memory ................................................................................................................................................. 16
3.3 RTC Circuit............................................................................................................................................ 18
3.4 Keys Input.............................................................................................................................................. 18
3.5 Infrared Receiver ................................................................................................................................... 19
3.6 Gyroscope Sensor .................................................................................................................................. 19
3.7 UART Interface...................................................................................................................................... 19
3.8 UART Debug Interface.......................................................................................................................... 20
3.9 CAN Bus Interface ................................................................................................................................ 20
3.10 JTAG Debug Interface......................................................................................................................... 21
3.11 SPDIF Audio Interface......................................................................................................................... 21
3.12 TF Card Interface................................................................................................................................. 22
3.13 MIPI Input Interface ............................................................................................................................ 22
3.14 MIPI/LVDS Output Interface .............................................................................................................. 24
3.15 HDMI Output Interface ....................................................................................................................... 26

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd VI
3.16 eDP Output Interface ........................................................................................................................... 26
3.17 VGA Output Interface.......................................................................................................................... 27
3.18 Audio Input and Output Interface ........................................................................................................ 28
3.19 CIF/EBC/RGMII/BT656 Extension Interfaces ................................................................................... 31
3.20 USB OTG/HOST Interface.................................................................................................................. 32
3.21 Ethernet Interface................................................................................................................................. 33
3.22 PCIe Interface ...................................................................................................................................... 34
3.23 SATA Interface..................................................................................................................................... 34
3.24 WIFI..................................................................................................................................................... 35
4 Notice ................................................................................................................................................................... 36

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd VII
Figures
Figure 1-1 RK3568 Block Diagram..................................................................................................1
Figure 1-2 RK3568 EVB System Diagram.......................................................................................2
Figure 1-3 EVB TOP Surface...........................................................................................................5
Figure 1-4 EVB Bottom Surface.......................................................................................................6
Figure 1-5 Driver Installed Successfully...........................................................................................7
Figure 1-6 Loader Flashing Mode ....................................................................................................8
Figure 1-7 Maskrom Flashing Mode Serial......................................................................................8
Figure 1-8 Current COM Number ....................................................................................................9
Figure 1-9 Serial Port Tool Configuration Interface.........................................................................9
Figure 1-10 Serial Port Tool Debugging Interface .........................................................................10
Figure 1-11 ADB Connected Successfully.....................................................................................10
Figure 2-1 EVB Picture ..................................................................................................................11
Figure 2-2 RK3568 EVB Power Diagram......................................................................................12
Figure 2-3Vertical Double Row 30 PIN PCB Package with 1mm Pitch........................................14
Figure 2-4 Flip and 0.5mm Pitch and 40 PIN FPC PCB Package ..................................................15
Figure 3-1 DC12V Input, Front-end Buck Converter and PMIC Chip...........................................16
Figure 3-2 DDR4, eMMC and Reserved NAND Flash Location...................................................17
Figure 3-3 Reserved SPI Flash Location ........................................................................................17
Figure 3-4 The Key Location for Entering Maskrom Flashing Mode............................................17
Figure 3-5 RTC Circuit...................................................................................................................18
Figure 3-6 EVB Keys......................................................................................................................18
Figure 3-7 Receiver.........................................................................................................................19
Figure 3-8 Gyroscope Sensor..........................................................................................................19
Figure 3-9 UART Interface.............................................................................................................20
Figure 3-10 UART Debug Interface...............................................................................................20
Figure 3-11CAN Bus Interface.......................................................................................................21
Figure 3-12 JTAG Debug Interface ................................................................................................21
Figure 3-13 SPDIF Audio Interface................................................................................................22
Figure 3-14 TF Card Interface (bottom surface).............................................................................22
Figure 3-15 MIPI CSI_RX Video Input Interface ..........................................................................22
Figure 3-16 MIPI DSI/LVDS_TX0 and MIPI DSI _TX1 Video Input Interface...........................24
Figure 3-17 HDMI Output Interface...............................................................................................26
Figure 3-18 EDP Video Output Interface .......................................................................................26
Figure 3-19 VGA Output Interface.................................................................................................28
Figure 3-20 MIC and Loopback DIP Switch Selection Circuit ......................................................28
Figure 3-21 DIP Switch Selection Circuit of I2S1 Channel ...........................................................29
Figure 3-22 Headphone, SPK and MIC Interface...........................................................................29
Figure 3-23 Audio MIC Array Interface.........................................................................................29
Figure 3-24 CIF, EBC, RGMII, BT656 Extension Interfaces ........................................................31
Figure 3-25 CIF, EBC, RGMII, BT656 Extension Interfaces (bottom surface).............................31
Figure 3-26 USB3.0 OTG, micro USB2.0 OTG and USB3.0 HOST1 Interface............................33
Figure 3-27 USB2.0 HOST2/3 Interface ........................................................................................33
Figure 3-28 RJ45 Interface .............................................................................................................34
Figure 3-29 PCIe3.0 Connector......................................................................................................34
Figure 3-30 SATA Signal and Power Interface..............................................................................35
Figure 3-31 WIFI Module and SMA Antenna InterfaceNotice......................................................35

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd VIII
Tables
Table 1-1 PCB Functional Interfaces Introduction ...........................................................................4
Table 2-1 Match Relation Between I2C Address and IO Voltage Level........................................13
Table 3-1 MIPI CSI_RX Signal Definition: ...................................................................................23
Table 3-2 MIPI DSI/LVDS_TX0 Signal Definition.......................................................................24
Table 3-3 MIPI DSI _TX1 Signal Definition .................................................................................25
Table 3-4 eDP Video Signal Definition..........................................................................................27
Table 3-5 Audio MIC Array Signal Definition...............................................................................30
Table 3-6 CIF, EBC, RGMII, BT656 Extension Interfaces Signal Definition ...............................32

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd 1
1Overview
1.1 RK3568 Introduction
RK3568 is a quad-core ARM Cortex-A55 low-power and high-performance processor designed for personal
mobile Internet devices and AIoT devices.
It provides many powerful embedded hardware engines to optimize the performance of advanced
applications. The H.264 video decoder in RK3568 supports 4K@60fps, H.265 video decoder in RK3568 supports
4K@60fps, H.264/H.265 encoder supports 1080p@60fps, and high-quality JPEG codec. RK3568 embedded 3D
GPU is fully compatible with OpenGL ES 1.1/2.0/3.2, OpenCL 2.0 and Vulkan 1.1; the special 2D hardware
engine maximizes the display performance and runs smoothly at the same time. The built-in NPU supports
INT8/INT16 mixed operation. Due to strong compatibility, network models based on a series of frameworks such
as TensorFlow/MXNet/PyTorch/Caffe can be easily converted.
There are high-performance external memory interfaces in RK3568 to ensure high-capacity and high-
stability system operating memory bandwidth, and it supports multiple memory models such as DDR3, DDR3L,
LPDDR3, DDR4, LPDDR4, LPDDR4X, etc.
1.2 RK3568 Block Diagram
Figure 1-1 RK3568 Block Diagram

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd 2
1.3 System Introduction
1.3.1 System Diagram
RK3568 EVB system takes RK3568 as a core chip, with PMIC RK809-5 power management chip，
peripheral BUCK and LDO power chips, DDR4, eMMC and SATA/PCIe and other functional external device
interfaces, integrating a stable and mass produced solution. The detailed system block diagram is as follows:
Figure 1-2 RK3568 EVB System Diagram
1.3.2 Functions Overview
RK3568 EVB includes the following functions:
DC Power: DC 12V adapter power supply interface;
USB3.0 OTG: one USB3.0 standard-A interface, dual layout USB2.0 micro interface, system firmware
upgrade interface;
USB3.0 HOST1: One USB3.0 standard-A interface, which can be connected to mouse, U disk, USB HUB
and other devices;
USB2.0 HOST2/3: Two USB2.0 standard-A interfaces, which can be connected to mouse, U disk, USB
HUB and other devices;
TF Card: You can connect an TF card to extend the system storage capacity ;
CIF/EBC/RGMII/VOPBT656 Interface: Reserved CIF/EBC/RGMII/BT656 extension interfaces;
MIPI CSI: Support two 2lane or one 4lane MIPI signal input, connected via FPC line;
HDMI2.0 OUT: Support up to 4K@60Hz output;
MIPI DSI/LVDS TX0: Support 4lane MIPI or LVDS signal output, connected via FPC line;
RC Mode
x 4bit
SPI
Flash
Panel
eDP
Panel
TP
I2C1
Option
UART8_M 0
I2S3_M0
Opt
TP
I2C1
I2C4
MCLK
4 Lane MI PI DSI
PWM7_IR
SPDIF_TX_M1
IR Receiver
I2S3_M0
SDMM C0 x 4bit
SARADC_IN0
DC/DC
12V
Adapter 3.3V
RK809-5
PMIC+Codec
32.768KHz
Power fo r RK3 568
I2S1
I2C0/Sleep /INT/RESETn
2 Lane
PCIe3.0 x2
SS
SATA3.0
SS
USB3.0
HOST1
USB3.0
OTG0
USB2_OTG0_LS/FS/HS
USB2_HOST1_LS/FS/H S
USB3_HOST1_SS
SATA2
eDP
USB3_OTG0_SS
Micro
SD Card
Micro
SD Card
Power Key
2x 2 La ne o r 1x 4 Lane
MIC HP OU TSKP OUT
eMMC5.1
Loopback
for AEC
Speak er
Max 1. 3W
32.768KHz OUT
Debug
UART2
UART2
Giga PHY
RJ-45
DDR4 16bit
DDR4 16bit
MicBoard
x 8bit I2S1 PDM
I2C4
MCLK
Panel Panel
HOST3_LS/FS/HS
HOST2_LS/FS/HS
CEC
HDMI_ I2C
HPD
HDMI2.0 TX Camera1
TP
I2C1
RK3568 Ref Block Diagram
Keys
24MHz
TMDS
4 Lane MI PI DSI or LVDS
USB2.0
HOST2
USB2.0
HOST3
802.11
a/b/g/n/ac
BT5.0
WIFI/BT
MULTI_
PHY1
HDMI2 .0
TX
MULTI_
PHY0
VGA Port
eDP
to
VGA
Camera2
Quad A55
RK3568
Rockchip
MIPI
DSI
LVDS
TX0
PMUIO1
PMUIO2
VCCIO5VCCIO7MIPI
CSI
RX
MIPI
DSI
TX1
VCCIO3
eDP
USB2
OTG0
HOST1
MULTI_
PHY2
PCIE3.0
OSC
2.4/5GHz
VCCIO1
DDR
DQ8-15
_B
VCCIO2SARADC
VCCIO4
2.4/5GHz
DDR
ECC
DQ0-7
DDR
DQ8-15
_A
DDR
DQ0-7
_A
DDR
PHY
CA/CLK
DDR
DQ0-7
_B
USB3_OTG0
SATA 0
USB3_HOST1
SATA 1
QSGMII_M0
PCIE2.0
SATA 2
QSGMII_M1
VCCIO6
USB2
HOST2
HOST3
SDMM C2_M0
RGMII1_M1
UART8_M 0
Giga PHY
RJ-45
RGMII0
CEC
HDMI_ I2C
HPD
Head phone
Option

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Copyright @ 2022 Rockchip Electronics Co., Ltd 3
MIPI DSI TX1: Support 4lane MIPI signal output, connected via FPC line;
LCM eDP OUT: External eDP display screen with touch, connected via FPC line;
VGA OUT: Convert eDP signal to VGA output;
SDIO Wifi(2x2 Wifi&BT5.0): Wifi model is AP6398S, external SMA antenna, supports wireless Internet
access function;
Ethernet: Support 2 RGMII 10/100/1000M Ethernet;
Audio Interface: Supports speaker or headphone audio output, single MIC recording, digital audio output
interface and MIC array interface;
SATA3.0 Interface: One 7pin SATA interface, one 4pin SATA power interface;
PCIe3.0 Interface: One 2Lane PCIe, supports users to extend and debug PCIe devices;
IR Receive: IR remote control input;
Sensor: Gyroscope+G-Sensor devices;
UART Debug: Debug and check LOG information;
JTAG: System JTAG debug interface;
System Key: Including Reset, MASKROM, POWERON, V+/Recover, V-, MENU, ESC keys;
SARADC: 5-channel ADC 2.54mm standard male pin;
UART: Support external 3 UART + 2 UART (Option) function devices;
CAN: Support one CAN bus;
SPDIF: Support digital audio interface
1.3.3 Functional Interfaces

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd 4
Table 1-1 PCB Functional Interfaces Introduction
Functions
Usable or not
DDR4(512x16bit, total capacity is2GB)
YES
eMMC (total capacity 32GB)
YES
nand Flash
Choose one of the three types of flash,
it is NC by default
SPI Flash
Choose one of the three types of flash,
it is NC by default
DC 12V Input
YES
USB3.0 OTG
YES
USB3.0 Host(1 Port)
YES
USB2.0 Host(2 Port)
YES
TF Card
YES
CIF/EBC/RGMII/VOPBT656 Interface
Need jumper resistances,
please refer to section 3.19
MIPI CSI
YES
HDMI2.0 OUT
YES
MIPI DSI/LVDS TX0(4lane)
YES
MIPI DSI TX1(4lane)
YES
LCM eDP OUT
Need jumper capacitances,
please refer to section 3.16
VGA OUT
YES
SDIO Wifi(2x2 Wifi&BT5.0)
YES
RGMII 10M/100M/1000M（2 Port）
YES
Audio(SPK、MIC、Headphone)
YES
SATA3.0 Interface
YES
PCIe3.0 Interface
YES
IR Receive
YES
Gyroscope+G-Sensor
YES
UART Debug
YES
UART（5 Port）
YES
JTAG Interface
YES
System Key
YES
SARADC（5 Port）
YES
CAN
YES
SPDIF
YES

RK3568 EVB User Guide
Copyright @ 2022 Rockchip Electronics Co., Ltd 5
1.3.4 Functional Modules Layout
EVB functional interfaces layout are showed as follows：
Figure 1-3 EVB TOP Surface

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Copyright @ 2022 Rockchip Electronics Co., Ltd 6
Figure 1-4 EVB Bottom Surface
1.4 Components
RK3568 EVB package includes the following components:
One RK3568 EVB
One DC adapter: input 100V AC~240V AC, 50Hz, output DC12V/2A
Screen: 5.5 inch MIPI screen with 1920*1080 resolution
Two 2.4G/5G dual band SMA male interface antennas
1.5 Power on, power off and Standby
The way to power on and off the EVB, let the EVB go to standby mode are introduced as follows:
Power on: Connect DC 12v power supply and turn on the power switch to start the EVB.
Power off: Press and hold the power button for 6 seconds to power off the system.
Standby: Press the power button, the system will enter the first-level standby state. When there is no USB
OTG connection, no other operations (such as key operation), and the software without Wake_Lock
source. After about 3 seconds, it will switch from the first-level standby state to the second-level
standby state.

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Copyright @ 2022 Rockchip Electronics Co., Ltd 7
1.6 Firmware Upgrade
1.6.1 USB Driver Installation
It has to install the driver before upgrading the EVB driver, the tool is located in:
SDK\RKTools\windows\Release_DriverAssitant, open "DriverInstall.exe", click "Driver Installation", to
install the driver. If the previous version driver has been installed, please click "Driver Uninstall" and reinstall the
driver.
The driver file almost covers all current operating systems which can be supported.
Figure 1-5 Driver Installed Successfully
1.6.2 Firmware Upgrade
There are two ways to upgrade RK3568 EVB firmware:
Enter Loader upgrade mode:
Ensure that SARADC_VIN0 is low before the system is powered on, and the system will enter the Loader
state.
Detailed steps are as follows:
1. Connect the USB3.0 OTG port to a PC, press and hold RECOVER key of the EVB.
2. EVB is powered by 12v. If it has been powered on, press the reset key.
3. After the flashing tool shows that a Loader device is found, release the RECOVER key.
4. Select Loader, Parameter, Uboot, Recovery and other files on the flashing tool.
5. Click Execute to enter the upgrade state. The right side of the tool is the progress display bar, which
displays the download progress and verification status.

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Figure 1-6 Loader Flashing Mode
Maskrom upgrade mode:
Before the system is powered on, eMMC_D0 is connected to ground, causing eMMC to fail to boot and enter
the Maskrom state.
Detailed steps are as follows:
1. Connect the USB3.0 OTG port to a PC, press and hold MASKROM button on the EVB.
2. The EVB is powered by 12V. If it has been powered on, press the reset button.
3. After the flashing tool shows that a Maskrom device is found, release the MASKROM button. Note that in
the Maskrom state, you need to select the corresponding Loader options to finish the upgrading.
4. Select Loader, Parameter, Uboot, Recovery and other files on the flashing tool.
5. Click Execute to enter the upgrade state. The right side of the tool is the progress display bar, which
displays the download progress and verification status.
Figure 1-7 Maskrom Flashing Mode Serial

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1.7 Port Debugging
1.7.1 Serial Port Debugging Tool
Connect the USB Debug interface of the EVB to a PC, and get the current COM number in the PC device
manager.
Figure 1-8 Current COM Number
Open the serial port debug tool. Firstly, enter Session interface; Secondly select “Serial” under Connection
type; thirdly, select the corresponding serial port number and change the baud rate to 1.5M (RK3568 supports
1.5M baud rate by default), and finally click the "open" button to enter the serial debugging interface.
Figure 1-9 Serial Port Tool Configuration Interface

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Figure 1-10 Serial Port Tool Debugging Interface
1.7.2 ADB Debug
1. Ensure that the driver is installed successfully, and the PC is connected to the USB3.0 OTG port of the
EVB;
2. Power on the EVB and boot into the system;
3. On the PC, Click start ---run ---cmd, enter the directory where the adb.exe tool is located, and input "adb
devices" if the connected device is searched, indicating that the connection is successful;
4. Input "adb shell" to enter ADB debug.
Figure 1-11 ADB Connected Successfully

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2Hardware Introduction
2.1 EVB Picture
Figure 2-1 EVB Picture