Difference between revisions of "NanoPi NEO2"

Revision as of 02:00, 14 March 2017

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1 Introduction

Overview

Front

Back

• The NanoPI NEO2 is a newly released super tiny ARM board by FriendlyElec. It uses Allwinner’s 64-bit H5 quad-core SoC (ARM Cortex-A53). It has internal hexa-core Mail450 GPU, 512M DDR3 RAM. A UbuntuCore and Armbian image files are ready for it.
• The NanoPi NEO2 inherits NEO's form factor and has compatible interfaces and ports with NEO. In addition in such a small dimension it has Gbps Ethernet and one USB host port. These features make it especially suitable for applications that require high data throughput , speedy data transmission and high performance. Hobbyists and makers will just love it.

2 Hardware Spec

• CPU: Allwinner H5, Quad-core 64-bit high-performance Cortex A53
• DDR3 RAM: 512MB
• Connectivity: 10/100/1000M Ethernet, RTL8211E-VB-CG chip
• USB Host: USB Type A x 1 and USB pin header x 2
• MicroSD Slot: MicroSD x 1 for system boot and storage
• LED: Power LED x 1, System LED(Blue) x 1
• GPIO1: 2.54mm pitch 24 pin-header, compatible with Raspberry Pi's GPIO pin1 - pin 24. It includes UART, SPI, I2C, IO etc
• GPIO2: 2.54mm pitch 12 pin-header. It includes USB, IR receiver, I2S, IO etc
• Serial Debug Port: 2.54mm pitch 4pin-header
• Audio In/Out: 2.0mm pitch 4 pin-header
• PCB Dimension: 40 x 40mm
• MicroUSB: Power input(5V/2A) and OTG
• OS/Software: u-boot,Ubuntu Core

3 Diagram, Layout and Dimension

3.1 Layout

NanoPi NEO2 Layout

pinout

• GPIO Pin Description

Pin#	Name	Linux gpio	Pin#	Name	Linux gpio
1	SYS_3.3V		2	VDD_5V
3	I2C0_SDA		4	VDD_5V
5	I2C0_SCL		6	GND
7	GPIOG11	203	8	UART1_TX/GPIOG6	198
9	GND		10	UART1_RX/GPIOG7	199
11	UART2_TX/GPIOA0	0	12	PWM1/GPIOA6	6
13	UART2_RTS/GPIOA2	2	14	GND
15	UART2_CTS/GPIOA3	3	16	UART1_RTS/GPIOG8	200
17	SYS_3.3V		18	UART1_CTS/GPIOG9	201
19	SPI0_MOSI/GPIOC0	64	20	GND
21	SPI0_MISO/GPIOC1	65	22	UART2_RX/GPIOA1	1
23	SPI0_CLK/GPIOC2	66	24	SPI0_CS/GPIOC3	67

• USB/Audio/IR Pin Descripton

NanoPi-NEO2
Pin#	Name	Description
1	VDD_5V	5V Power Out
2	USB-DP1	USB1 DP Signal
3	USB-DM1	USB1 DM Signal
4	USB-DP2	USB2 DP Signal
5	USB-DM2	USB2 DM Signal
6	GPIOL11/IR-RX	GPIOL11 or IR Receive
7	SPDIF-OUT/GPIOA17	GPIOA17 or SPDIF-OUT
8	PCM0_SYNC/I2S0_LRC	I2S/PCM Sample Rate Clock/Sync
9	PCM0_CLK/I2S0_BCK	I2S/PCM Sample Rate Clock
10	PCM0_DOUT/I2S0_SDOUT	I2S/PCM Serial Data Output
11	PCM0_DIN/I2S0_SDIN	I2S/PCM Serial Data Input
12	GND	0V

• Audio

Pin#	Name	Description
1	MICIN1P	Microphone Positive Input
2	MICIN1N	Microphone Negative Input
3	LINEOUTR	LINE-OUT Right Channel Output
4	GND	0V
5	LINEOUTL	LINE-OUT Left Channel Output

• Debug Port（UART0）

DBG_UART

Pin#	Name
1	GND
2	VDD_5V
3	UART_TXD0
4	UART_RXD0

Note

1. SYS_3.3V: 3.3V power output
2. VDD_5V: 5V power input/output. The input range is 4.7V ~ 5.6V. It can take power input from the MicroUSB.
3. All pins are 3.3V and output current is 5mA
4. For more details refer to the document: NanoPi_NEO2-1701-Schematic.pdf

3.2 Dimensional Diagram

For more details refer to pcb file in dxf format

4 Get Started

4.1 Essentials You Need

Before starting to use your NanoPi NEO2 get the following items ready

• NanoPi NEO2
• microSD Card/TFCard: Class 10 or Above, minimum 8GB SDHC
• microUSB power. A 5V/2A power is a must
• A Host computer running Ubuntu 14.04 64 bit system

4.2 TF Cards We Tested

To make your NanoPi NEO2 boot and run fast we highly recommend you use a Class10 8GB SDHC TF card or a better one. The following cards are what we used in all our test cases presented here:

• SanDisk TF 8G Class10 Micro/SD TF card:

• SanDisk TF128G MicroSDXC TF 128G Class10 48MB/S:

• 川宇 8G C10 High Speed class10 micro SD card:

4.3 Make an Installation TF Card

4.3.1 Get Image File

Get the following files from download link to download image files (under the officail-ROMs directory) and the flashing utility(under the tools directory):

Image Files:
nanopi-neo2-core-qte-sd4g.img.zip	Ubuntu-Core with Qt-Embedded Image File
Flash Utility:
win32diskimager.rar	Windows utility. Under Linux users can use "dd"

4.3.2 Make Ubuntu-Core with Qt-Embedded Image Card

Extract the nanopi-neo2-core-qte-sd4g.img.zip and win32diskimager.rar files. Insert a TF card(at least 8G) into a Windows PC and run the win32diskimager utility as administrator. On the utility's main window select your TF card's drive, the wanted image file and click on "write" to start flashing the TF card. After this writing process is done insert this card into your NanoPi NEO2's TF card slot and power on (with a 5V/2A power source). If the blue LED is blinking this indicates your NanoPi NEO2 has successfully booted.

5 Work with Ubuntu-Core with Qt-Embedded

5.1 Run Ubuntu-Core with Qt-Embedded

• If you want to do kernel development you need to use a serial communication board, ie a PSU-ONECOM board, which will allow you to operate the board via a serial terminal. Here is a setup where we connect a NanoPi NEO2 to a PC via the PSU-ONECOM and you can power on your NEO2 from either the PSU-ONECOM or the board's MicroUSB:

• The password for both "root" and "fa" is "fa" under Ubuntu-Core
• Update packages:

apt-get update

5.2 Ethernet Connection

If a NanoPi NEO2 is connected to a network via Ethernet before it is powered on it will automatically obtain an IP after it is powered up. If it is not connected via Ethernet or its DHCP is not activated obtaining an IP will fail and system will hang on for about 15 to 60 seconds.In this case you can try obtaining an IP by using the following command:

dhclient eth0

5.3 Login via SSH

The NanoPi NEO2 doesn't have a video output interface. You can log into the board via SSH. In our test the IP address detected by our router was 192.168.1.230 and we ran the following command to log into the NanoPi NEO2:

ssh root@192.168.1.230

The password is fa

5.4 Extend TF Card's rootfs Section

When you boot Debian/UbuntuCore for the first time with your image card your OS will automatically resize the file system and this process takes a relatively long time.After your OS is fully loaded you can check the file system's size by using the following command:

df -h

5.5 Connect USB WiFi to NEO

Our system has support for popular USB WiFi drivers. Many USB WiFi modules are plug and play with our system. Here is a list of models we tested;

Number	Model
1	RTL8188CUS 802.11n WLAN Adapter
2	RT2070 Wireless Adapter
3	RT2870/RT3070 Wireless Adapter
4	RTL8192CU Wireless Adapter
5	NetGear, Inc. WG111v3 54 Mbps Wireless [realtek RTL8187B]

If you NanoPi NEO2 is connected to a USB WiFi and is powered up you can log into NEO and run the following command to check if the USB WiFi is recognized. If "wlan0" is listed it indicates your USB WiFi has been recognized:

ifconfig -a

Open the /etc/wpa_supplicant/wpa_supplicant.conf file and append the following lines:

network={
        ssid="YourWiFiESSID"
        psk="YourWiFiPassword"
}

The "YourWiFiESSID" and "YourWiFiPassword" need to be replaced with your actual ESSID and password.
Save, exit and run the following commands to connect to your WiFi router:

ifdown wlan0
ifup wlan0

If your WiFi password has special characters or you don't want your password saved as plain text you can use "wpa_passphrase" to generate a psk for your WiFi password. Here is how you can do it:

wpa_passphrase YourWiFiESSID

Following the prompt type in your password and you will get a new password in the /etc/wpa_supplicant/wpa_supplicant.conf file. Now you can replace the existing password in the wlan0 file with the new one.

5.6 Connect NanoPi NEO to USB Camera(FA-CAM202)

The FA-CAM202 is a 2M-pixel USB camera module. Boot your NEO2, connect NEO2 to the internet, log in the system as root, compile and run the mjpg-streamer utility:

cd /root/mjpg-streamer
apt-get install libjpeg62-dev
make
./start.sh

The mjpg-streamer is an open source media server. After it is started successfully you will see the following messages:

 
 i: Using V4L2 device.: /dev/video0
 i: Desired Resolution: 1280 x 720
 i: Frames Per Second.: 30
 i: Format............: YUV
 i: JPEG Quality......: 90
 o: www-folder-path...: ./www/
 o: HTTP TCP port.....: 8080
 o: username:password.: disabled
 o: commands..........: enabled

In our case our NEO2's IP address was 192.168.1.123. We typed "192.168.1.123:8080" on a browser, entered and we got the following screenshot:

The mjpg-streamer uses libjpeg to soft-encode camera's input data. You can use ffmpeg to hard-encode data which greatly increases system's efficiency:

ffmpeg -t 30 -f v4l2 -channel 0 -video_size 1280x720 -i /dev/video0 -pix_fmt nv12 -r 30 -b:v 64k -c:v cedrus264 test.mp4

By default it records a 30-second video. When you type "q" it will stop recording and the recorded video will be saved as a test.mp4 file.

5.7 命令行查看CPU工作温度

在串口终端执行如下命令，可以快速地获取CPU的当前温度和运行频率等信息：

cpu_freq

6 如何编译Ubuntu-Core with Qt-Embedded系统

6.1 准备工作

访问此处下载地址的sources/nanopi-h5-bsp目录，下载所有压缩文件，使用7-Zip工具解压后得到lichee目录，如下：

ls ./
lichee

也可以从github上克隆lichee源码：

git clone https://github.com/friendlyarm/h5_lichee.git lichee

注：lichee是全志为其CPU的板级支持包所起的项目名称，里面包含了U-boot，Linux等源码和众多的编译脚本。

6.2 安装交叉编译器

访问此处下载地址的toolchain目录，下载压缩包gcc-linaro-arm-4.6.3.tar.xz和gcc-linaro-aarch64.tar.xz。
其中gcc-linaro-arm-4.6.3.tar.xz用于编译U-boot，gcc-linaro-aarch64.tar.xz用于编译Linux内核。下载完成后，将它们拷贝到源码lichee/brandy/toochain/目录下即可。 后面编译U-boot或者Linux内核时，编译脚本会自动解压并使用这两个编译器进行编译。

6.3 编译lichee源码

编译全志 H5 的BSP源码包必须使用64bit的Linux PC系统，并安装下列软件包，下列操作均基于Ubuntu-14.04 LTS-64bit：

sudo apt-get install gawk git gnupg flex bison gperf build-essential \
zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
libgl1-mesa-dev g++-multilib mingw32 tofrodos \
python-markdown libxml2-utils xsltproc zlib1g-dev:i386

编译lichee源码包，执行命令：

cd lichee/fa_tools
./build.sh -b nanopi-neo2 -p linux -t all

该命令会一次性编译好U-boot、Linux内核和模块。
lichee目录里内置了交叉编译器，当进行源码编译时，会自动使用该内置的编译器，所以无需手动安装编译器。

下列命令可以更新TF卡上的U-boot：

cd lichee/fa_tools/
./fuse.sh -d /dev/sdx -p linux -t u-boot

/dev/sdx请替换为实际的TF卡设备文件名。
内核boot.img和驱动模块均位于linux-3.10/output目录下，将boot.img拷贝到TF卡的boot分区的根目录即可更新内核。

6.4 编译U-boot

如果你想单独编译U-boot，可以执行命令：

cd lichee/fa_tools/
./build.sh -b nanopi-neo2 -p linux -t u-boot

6.5 编译Linux内核

如果你想单独编译Linux内核，可以执行命令：

cd lichee/fa_tools/
./build.sh -b nanopi-neo2 -p linux -t kernel

编译完成后内核boot.img和驱动模块均位于linux-3.10/output目录下，将boot.img拷贝到TF卡的boot分区的根目录即可。

6.6 清理lichee源码

cd lichee/fa_tools/
./build.sh -b nanopi-neo2 -p linux -t clean

7 3D 打印外壳

8 资源链接

8.1 手册原理图等开发资料

• 原理图
  • NanoPi-NEO2-1701-Schematic.pdf
• 尺寸图
  • NanoPi-NEO2-1701 pcb的dxf文件
• H5芯片手册 Allwinner_H5_Datasheet_V1.0.pdf

9 更新日志