Nvidia JETSON NANO Bedienungsanleitung

DA_09402_001_01 | March 18, 2019

User Guide

JETSON NANO

DEVELOPER KIT

Jetson Nano Developer Kit DA_09402_001_01 | ii

DOCUMENT CHANGE HISTORY

DA_09402_001_01

Version

Date

Authors

Description of Change

1.0 March 18, 2019 plawrence Initial release

NOTE

Welcome to the NVIDIA Jetson platform! There two key things you should do right

away:

1. Sign up for the NVIDIA Developer Program – this enables you to ask

questions and contribute on the NVIDIA Jetson Forums, gives access to all

documentation and collateral on the Jetson Download Center, and more.

2. Read this User Guide! After that, check out these important links:

•Jetson FAQ – Please read the FAQ.

•Support Resources – This web page links to important resources, including

the Jetson Forum and the Jetson Ecosystem page.

•L4T Release Notes – L4T is a key component of the Jetson platform, and

provides the sample filesystem for your developer kit. Please read the

latest release notes.

Thanks,

The NVIDIA Jetson team

Jetson Nano Developer Kit DA_09402_001_01 | iii

TABLE OF CONTENTS

Note .........................................................................................ii

Developer Kit Setup and Hardware ...................................................4

Developer Kit Setup ............................................................................ 4

Included in the Box ............................................................................. 5

Developer Kit Interfaces ....................................................................... 5

Interface Details ............................................................................. 6

Power Guide .................................................................................. 7

JetPack .....................................................................................9

Summary of JetPack Components ............................................................ 9

How to Install JetPack ........................................................................11

Working with L4T.......................................................................12

Compliance Information...............................................................13

United States ...................................................................................13

Canada...........................................................................................14

Innovation, Science and Economic Development Canada (ISED)..................14

European Union ................................................................................15

Australia and New Zealand ...................................................................15

Japan ............................................................................................15

South Korea.....................................................................................18

Russia/Kazakhstan/Belarus...................................................................20

Taiwan...........................................................................................20

China.............................................................................................21

India .............................................................................................22

Jetson Nano Developer Kit DA_09402_001_01 | 4

DEVELOPER KIT SETUP AND HARDWARE

The NVIDIA®Jetson Nano™ Developer Kit is an AI computer for makers, learners, and

developers that brings the power of modern artificial intelligence to a low-power, easy-

to-use platform. Get started quickly with out-of-the-box support for many popular

peripherals, add-ons, and ready-to-use projects.

Jetson Nano is supported by the comprehensive NVIDIA®JetPack™ SDK, and has the

performance and capabilities needed to run modern AI workloads. JetPack includes:

•Full desktop Linux with NVIDIA drivers

•AI and Computer Vision libraries and APIs

•Developer tools

•Documentation and sample code

DEVELOPER KIT SETUP

Before using your developer kit, you need to set up a microSD card with the operating

system and JetPack components. The simplest method is to download the microSD card

image and follow instructions found in Getting Started with Jetson Nano Developer Kit.

In summary:

•You need a 16 GB or larger UHS-1 microSD card, HDMI or DP monitor, USB

keyboard and mouse, and 5V⎓2A Micro-USB power supply.

•Download the image and write it to the microSD card.

•Insert the microSD card into the slot under the Jetson Nano module, then attach the

display, keyboard, mouse, and Ethernet cable or wireless networking adapter.

•Connect the Micro-USB power supply. The developer kit powers on automatically.

For alternative methods, see How to Install JetPack, below.

Jetson Nano Developer Kit DA_09402_001_01 | 5

INCLUDED IN THE BOX

•Jetson Nano module (P3448-0000)

•Reference carrier board (P3449)

•Small paper card with quick start and support information

•Folded paper stand for the developer kit

DEVELOPER KIT INTERFACES

Developer kit module and carrier board

Jetson Nano Developer Kit DA_09402_001_01 | 6

Interface Details

This section highlights some of the Jetson Nano Developer Kit interfaces. See the Jetson

Nano Developer Kit Carrier Board Specification for comprehensive information.

Module

•[J501] Slot for a microSD card.

•The passive heatsink supports 10W module power usage at 25° C ambient

temperature. If your user case requires additional cooling, you can configure the

module to control a system fan. See the Jetson Nano Supported Component List for fans

that have been verified for attachment to the heatsink.

Carrier Board

•[DS3] Power LED; lights when the developer kit is powered on.

•[J2] SO-DIMM connector for Jetson Nano module.

•[J6] HDMI and DP connector stack.

•[J13] Camera connector; enables use of CSI cameras. Jetson Nano Developer Kit

works with IMX219 camera modules, including Leopard Imaging LI-IMX219-MIPI-

FF-NANO camera module and Raspberry Pi Camera Module V2.

•[J15] 4-pin fan control header. Pulse Width Modulation (PWM) output and

tachometer input are supported.

•[J18] M.2 Key E connector can be used for wireless networking cards; includes

interfaces for PCIe (x1), USB 2.0, UART, I2S, and I2C.

To reach J18 you must detach the Jetson Nano module.

•[J25] Power jack for 5V⎓4A power supply. Accepts a 2.1×5.5×9.5 mm plug with

positive polarity.

•[J28] Micro-USB 2.0 connector; can be used in either of two ways:

•If J48 pins are not connected, you can power the developer kit from a 5V⎓2A

Micro-USB power supply.

•If J48 pins are connected, operates in Device Mode.

•[J32 and J33] are each a stack of two USB 3.0 Type A connectors. Each stack is limited

to 1A total power delivery. All four are connected to the Jetson Nano module via a

USB 3.0 hub built into the carrier board.

•[J38] The Power over Ethernet (POE) header exposes any DC voltage present on J43

Ethernet jack per IEEE 802.3af.

•[J40] 8-pin button header; brings out several system power, reset, and force recovery

related signals (see the following diagram).

Jetson Nano Developer Kit DA_09402_001_01 | 7

•Pins 7 and 8 disable auto power-on.

•Pins 1 and 2 initiate power-on if auto power-on is disabled.

•Pins 5 and 6 reset the system.

•Pins 3 and 4 put the developer kit into Force Recovery Mode if they are

connected when it is powered on.

•[J41] 40-pin expansion header includes:

•Power pins.

Two 3.3V power pins and two 5V power pins. These are not switchable; power is

always available when the developer kit is connected to power.

Two 5V pins can be used to power the developer kit at 3A each.

•Interface signal pins.

All signals use 3.3V levels.

By default, all interface signal pins are configured as GPIOs, except pins 3 and 5

and pins 27 and 28, which are I2C SDA and SCL, and pins 8 and 10, which are

UART TX and RX. L4T provides a Python library, Jetson.GPIO, for controlling

GPIOs. The library has the same API as RPi.GPIO. See

/opt/nvidia/jetson-gpio/doc/README.txt on your Jetson system for

details.

•[J43] RJ45 connector for gigabit Ethernet.

•[J44] 3.3V serial port header; provides access to the UART console.

•[J48] Enables either J28 Micro-USB connector or J25 power jack as power source for

the developer kit. Without a jumper, the developer kit can be powered by J28 Micro-

USB connector. With a jumper, no power is drawn from J28, and the developer kit

can be powered via J25 power jack.

Power Guide

Jetson Nano Developer Kit requires a 5V power supply capable of supplying 2A current.

Micro-USB Power Supply Options

Out of the box, the developer kit is configured to accept power via the Micro-USB

connector. Note that some Micro-USB power supplies are designed to output slightly

more than 5V to account for voltage loss across the cable. For example, Adafruit’s

Jetson Nano Developer Kit DA_09402_001_01 | 8

GEO151UB-6025 Power Supply (validated by NVIDIA for use with the Jetson Nano

Developer Kit) is designed to provide 5.25V. The critical point is that the Jetson Nano

module requires a minimum of 4.75V to operate. Use a power supply capable of

delivering 5V at the J28 Micro-USB connector.

Other Power Supply Options

If the developer kit’s total load is expected to exceed 2A, e.g., due to peripherals

attached to the carrier board, connect the J48 Power Select Header pins to disable power

supply via Micro-USB and enable 5V⎓4A via the J25 power jack. Another option is to

supply 5V⎓6A via the J41 expansion header (3A per pin).

The J25 power jack is 9.5 mm deep, and accepts positive polarity plugs with 2.1 mm

inner diameter and 5.5 mm outer diameter. As an example, NVIDIA has validated

Adafruit’s GEO241DA-0540 Power Supply for use with Jetson Nano Developer Kit.

Power Budget Considerations

The developer kit’s total power usage comprised of carrier board, module, and

peripherals, and is determined by your particular use case.

The carrier board consumes between 0.5W (at 2A) and 1.25W (at 4A) with no peripherals

attached.

The Jetson Nano module is designed to optimize power efficiency and supports two

software-defined power modes. The default mode provides a 10W power budget for the

modules, and the other, a 5W budget. These power modes constrain the module to near

their 10W or 5W budgets by capping the GPU and CPU frequencies and the number of

online CPU cores at a pre-qualified level. See the L4T Development Guide for details

about power modes.

Note that the power mode budgets cover the two major power domains for the Jetson

Nano module: GPU (VDD_GPU) and CPU (VDD_CPU). Individual parts of the CORE

(VDD_SOC) power domain, such as video enclode and video decode, are not covered by

these budgets. This is a reason why power modes constrain the module to near a power

budget, but not to the exact power budget. Your particular use case determines the

module’s actual power consumption. See the Jetson Nano module Data Sheet for details

about how power domains are used to optimize power consumption.

Attached peripherals are the final component of the developer kit’s total power usage.

Select a power supply that is capable of delivering sufficient power for your workload.

Jetson Nano Developer Kit DA_09402_001_01 | 9

JETPACK

NVIDIA JetPack SDK is the most comprehensive solution for building AI applications. It

includes the latest OS images for Jetson products, along with libraries and APIs,

samples, developer tools, and documentation.

SUMMARY OF JETPACK COMPONENTS

This section briefly describes each component of JetPack. For additional details about

these components, see the online documentation for JetPack at:

https://docs.nvidia.com/jetson/jetpack/index.html

OS Image

JetPack includes an operating system and reference file system derived from Ubuntu.

Libraries and APIs

JetPack libraries and APIs include:

•TensorRT and cuDNN for high-performance deep learning applications

•CUDA for GPU accelerated applications across multiple domains

•Multimedia API package for camera applications and sensor driver development

•VisionWorks and OpenCV for visual computing applications

Sample Applications

JetPack includes several samples which demonstrate the use of JetPack components. The

examples are stored in the reference filesystem, and can be compiled on the developer

kit.

Jetson Nano Developer Kit DA_09402_001_01 | 10

JetPack component

Sample locations on reference filesystem

TensorRT /usr/src/tensorrt/samples/

cuDNN /usr/src/cudnn_samples_<version>/

CUDA /usr/local/cuda-<version>/samples/

Multimedia API /usr/src/tegra_multimedia_api/

VisionWorks /usr/share/visionworks/sources/samples/

/usr/share/visionworks-tracking/sources/samples/

/usr/share/visionworks-sfm/sources/samples/

OpenCV /usr/share/OpenCV/samples/

Developer Tools

JetPack includes the following developer tools. Some are used directly on a Jetson

system, and others run on a Linux host computer connected to a Jetson system.

•Tools for application development and debugging:

•Nsight Eclipse Edition for development of GPU accelerated applications: Runs

on Linux host computer. Supports all Jetson products.

•CUDA-GDB for application debugging: Runs on the Jetson system or the Linux

host computer. Supports all Jetson products.

•CUDA-MEMCHECK for debugging application memory errors: Runs on the

Jetson system. Supports all Jetson products.

•Tools for application profiling and optimization:

•Nsight Systems for application profiling across GPU and CPU: Runs on the

Linux host computer. Supports all Jetson products.

•nvprof for application profiling across GPU and CPU: Runs on the Jetson system.

Supports all Jetson products.

•Visual Profiler for application profiling across GPU and CPU: Runs on Linux

host computer. Supports all Jetson products.

Note Visual Profiler is deprecated. Developers are encouraged to use

Nsight Systems and Nsight Compute instead.

•Nsight Graphics for graphics application debugging and profiling: Runs on the

Linux host computer. Supports all Jetson products.

•Nsight Compute for interactive CUDA kernel profiling: Runs on the Linux host

computer. Supports Jetson AGX Xavier.

•Nsight Compute CLI for CUDA kernel profiling: Runs on the Jetson system or

the Linux host computer. Supports Jetson AGX Xavier.

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