Leetop A203 Manuel utilisateur
Leetop-203载板用户手册
安全警示及使用注意事项 Notice
服务与支持 Service and Support
DOCUMENT CHANGE HISTORY
Leetop-203产品介绍
简介 Brief
载板接口说明
载板规格
接口位置
接口详述
HDMI (W1)
双层USB 3.0 (W2)
网口 (W3)
DC电源接口 (W4)
后备电池 (W5)
micro-USB (W6)
电源LED (LED)
多功能接口：14PIN(按键) (W7)
多功能接口：40PIN (W8)
M.2 KEY M接口 (W9)
CSI Camera接口 (W10)
多功能接口：20PIN(USB 3.0) (W11)
Micro SD (W12)
风扇接口 (W13)
M.2 KEY E接口 (W14)
硬件安装 A203核心板安装
功能介绍
系统安装 Operating system setup
1.硬件准备 Hardware preparation
2.环境配置 Environment requirements
3.Recovery模式 Recovery mode
4.安装系统镜像 Install system image
5.切换工作模式 Switching working modes
Xshell 的使用
系统配置
查看系统版本
制作备份镜像
安装Jtop工具 Installation of Jtop tools
接入固态硬盘
Developer Tools
JetPack
L4T
DeepStream SDK on Jetson
Isaac SDK
Jetpack 的主要功能 KEY FEATURES IN JETPACK
Sample Applications
开发者工具
No. 2 / 29
A203 Carrier Board
用户手册
沥拓科技
Electronic components and circuits are sensitive to
ElectroStatic Discharge (ESD). When handling any
circuit board assemblies including Leetop Tech COM
Express carrier assemblies, it is recommended that
ESD safety precautions be observed. ESD safe best
practices include, but are not limited to: • Leaving
circuit boards in their antistatic packaging until
they
are ready to be installed. • Using a grounded wrist
strap when handling circuit boards, at a minimum
you should touch a grounded metal object to
dissipate any static charge that may be present on
you. • Only handling circuit boards in ESD safe areas,
which may include ESD floor and table mats, wrist
strap stations and ESD safe lab coats. • Avoiding
handling circuit boards in carpeted areas. • Try to
handle the board by the edges, avoiding contact
with components.
安全警示及使用注意事项 Notice
请在使用本产品前仔细阅读本手册，未经授权的操作会导致错误或意外。制造商对因错误操作而导致设备出现的任 何问
题均不负责。
Please read manual carefully before install, operate, or transport Leetop device.
在给设备供电之前，确保使用正确的电源范围。
Ensure that the correct power range is being used before powering the device.
避免热插拔设备接口。
Avoid hot plugging.
要正确关闭电源，请先关闭Ubuntu系统，然后再切断电源。由于Ubuntu系统的特殊性，在Nvidia的开发套件 (沥拓
套件)上，如启动未完成的时候强行断电，会有0.03%的概率出现异常，进而导致设备无法启动。
To properly turn off the power, please shut down the Ubuntu system first, and then cut off the power. Due to
the particularity of the Ubuntu system, on the Nvidia developer kit, if the power is turned off when the
startup is not completed, there will be a 0.03% probability of abnormality, which will cause the device to fail
to start. Due to the use of the Ubuntu system, the same problem also exists on the Leetop device.
请勿使用本手册提及以外的线缆。
Do not use cables or connectors other than described in this manual.
避免在强磁场环境下使用本设备。
Do not use Leetop device near strong magnetic fields.
长期不使用及运输前需要对数据进行备份。
Backup your data before transportation or Leetop device is idle.
推荐使用原包装进行运输。
Recommend to transport Leetop device in its original packaging.
警告！ 此为A级产品，在生活环境中，该产品可能会造成无线电干扰。在这种情况下，可能需要用户对干扰采 取切
实可行的措施。
ESD Warning
No. 3 / 29
No. 4 / 29
Document Version date
A203 V1.0 20210620
服务与支持 Service and Support
技术支持 Technical Support
沥拓科技非常愿意帮助你解决关于我们产品的任何问题，或者关于你的应用技术的使用。最快的方法是向我们发送电子邮
Leetop is glad to help you with any questions you may have about our product, or about the use of the technology
for your application. The fastest way is sending us an email: [email protected]
保修 Warranties
保修期：自交付之日起一年
Warranty period: One year from the date of delivery.
保修内容：
leetop保证由我们制造的产品在保修期内没有材料和工艺上的缺陷。在退回任何物品进行维修或更换之前，请联系
品进行维修之前，建议备份您的数据并删除任何机密或个人数据。
Warranty content:
Leetop warrants the product manufactured by us to be free from defects in material and workmanship during
warranty period. Please contact [email protected] for return material authorization (RMA) prior to returning any
items for repair or exchange. The product must be returned in its original packaging to prevent damage during
shipping. Before returning any product for repair, it is recommended to back up your data and delete any
confidential or personal data.
DOCUMENT CHANGE HISTORY
No. 5 / 29
Feature Carrier for NVIDIA Jetson XAVIER NX/Nano / ORIN NX
PCB Size / Overall Size 87mm x 52mm
Display 1x HDMI
Ethernet 1x Gigabit Ethernet (10/100/1000)
USB
2x USB 3.0 Type A (Integrated USB 2.0)
1x USB 3.0 0.5mm pitch 20P ZIF
1x USB 2.0 15 Pin/1x USB 2.0 Micro-AB
M.2 KEY M 1x M.2 KEY M (NVMe SSD)
Serial 1x CAN
Camera 1x CSI CAMERA
M.2 KEY E PCIE 1x PCIE 2242 SIZE
I2S 1x I2S(3.3V Level)
Misc.
2x I2C Link (+3.3V I/O)
5x GPIO
1x UART
2x SPI
Power Requirements +9V to +19V DC Input @ 3A
Operating Temperature -25℃ to +65°
Weight 100g
Accessories Cables
Leetop-203产品介绍
简介 Brief
Leetop-203是一款嵌入式人工智能计算机，能够为众多终端设备赋予高达21TOPS(INT8)的计算力。Leetop-203提供快速
的被动散热设计，可以满足抗震防静电等工业标准。同时Leetop-203接口丰富，性价比高。
载板接口说明
载板规格
No. 6 / 29
接口 接口名称 接口说明
W1 HDMI Port HDMI Right Angle Vertical Connector
W2 USB 3.0 Type A USB 3.0 Link 1 Type A Connector
W3 NVIDIA Gigabit Ethernet RJ45 Gigabit Ethernet Connector (10/100/1000)
W4 DC Power DC Input Power TE Connector
W5 3V LITHIUM BATTERY 3V Lithium Battery Connector
W6 USB 2.0 USB 2.0 Link 0 Micro-AB Connector
W7 Multifunctional port 2.54 PITCH 14 PIN
W8 Multifunctional port 2.54 PITCH 40 PIN
W9 M.2 KEY M Disk Disk size 2240
W10 CSI CAMERA0 CONNECT
W11 USB 3.0 ZIF connect 0.5 PITCH 20 PIN
W12 SD Card 1x microSD Card Slot
W13 FAN CONNECT PicoBlade Header
W14 M.2 KEY E PCIE 2242 SIZE
W15 NVIDIA Jetson Nano/NX
Nano/NX 260 PIN Connector
引脚 信号名称 引脚 信号名称
1 TMDS Data2+ 2 TMDS Data2 GND
3 TMDS Data2- 4 TMDS Data1+
5 TMDS Data1 GND 6 TMDS Data1-
7 TMDS Data0+ 8 TMDS Data0 GND
9 TMDS Data0- 10 TMDS Clock+
11 TMDS Clock GND 12 TMDS Clock-
13 CEC 14 NC
15 DDC clock 16 DDC data
17 DDC GND 18 +5V
19 Hot Plug Detect
接口详述
HDMI (W1)
No. 8 / 29
引脚 信号名称 引脚 信号名称
1 VBUS 2 USB 2.0 D-
3 USB 2.0 D+ 4 GND
5 SSRX- 6 SSRX+
7 GND 8 SSTX-
9 SSTX+ 10 VBUS
11 USB 2.0 D- 12 USB 2.0 D+
13 GND 14 SSRX-
15 SSRX+ 16 GND
17 SSTX- 18 SSTX+
引脚 信号名称 引脚 信号名称
1 TP0+ 2 TP0-
3 TP1+ 4 TP2+
5 TP2- 6 TP1-
7 TP3+ 8 TP3-
引脚 信号名称 引脚 信号名称
1电源DC正2 GND
引脚 信号名称 引脚 信号名称
1 GND 2 BBAT
引脚 信号名称 引脚 信号名称
1 VBUS 2 USB 2.0 D-
3 USB 2.0 D+ 4 USB ID
5 GND
双层USB 3.0 (W2)
网口 (W3)
DC电源接口 (W4)
注：电源输入范围：直流+9V ~ +19V
后备电池 (W5)
micro-USB (W6)
No. 9 / 29
引脚 信号名称 引脚 信号名称
1 SYS_RST 8 LATCH_SET
2 GND 9 GND
3 RECOVERY 10 UART2_RXD
4 GND 11 CAN_L
5 PWR_BTN- 12 GND
6 GND 13 CAN_H
7 LATCH_SET_BUT 14 GND
引脚 信号名称 引脚 信号名称
1 3.3V 2 5V
3 I2C1_SDA 4 5V
5 I2C1_SCL 6 GND
7 GPIO9_(3.3V_LEVEL) 8 UART1_TXD_3.3V
9 GND 10 UART1_RXD_3.3V
11 UART1_RTS_3.3V 12 I2S0_SCLK_3.3V
13 SPI1_SCLK_3.3V 14 GND
15 GPIO12_(3.3V_LEVEL) 16 SPI1_CS1_3.3V
17 3.3V 18 SPI1_CS0_3.3V
19 SPI0_MOSI_3.3V 20 GND
21 SPI0_MISO_3.3V 22 SPI1_MISO_3.3V
23 SPI0_SCK_3.3V 24 SPI0_CS0_3.3V
25 GND 26 SPI0_CS1_3.3V
27 ID_I2C_SDA_3.3V 28 ID_I2C_SCL
29 GPIO1_(3.3V_LEVEL) 30 GND
31 GPIO11_(3.3V_LEVEL) 32 GPIO7_(3.3V_LEVEL)
电源LED (LED)
插入电源正常开机后，电源LED灯亮（红色）
多功能接口：14PIN(按键) (W7)
注：
“RESET”和”RECOVERY“按键从这个PIN口接入
CAN口在NX核心板可用，在Nano核心板不可用
多功能接口：40PIN (W8)
No. 10 / 29
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