Difference between revisions of "NanoPi M2"
(→关于LCD/HDMI分辨率) |
(→在电脑上修改SD卡上的系统) |
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If your NanoPi 2 connects an HDMI monitor and it runs Android it will automatically set the resolution to an appropriate HDMI mode by checking "EDID". If your NanoPi 2 connects an HDMI monitor and it runs Debian by default it will set the resolution to HDMI 720P and in this case you can set it to 1080P by modifying your kernel's configuration. | If your NanoPi 2 connects an HDMI monitor and it runs Android it will automatically set the resolution to an appropriate HDMI mode by checking "EDID". If your NanoPi 2 connects an HDMI monitor and it runs Debian by default it will set the resolution to HDMI 720P and in this case you can set it to 1080P by modifying your kernel's configuration. | ||
| − | === | + | ===Update Image Files in MicroSD Card From PC Host=== |
| − | + | If you want to make some changes to the image files in your MicroSD card please follow steps below otherwise you can skip this section.<br/> | |
| − | + | Please insert your MicroSD card to a PC host running LINUX, mount the boot and rootfs sections of the SD card and follow the steps below:<br/> | |
| − | 1) | + | 1) If you want to change your kernel command line parameters you can do it via the fw_setevn utility under "sd-fuse_nanopi2/tools".<br /> |
| − | + | Check the current Command Line: | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
cd sd-fuse_nanopi2/tools | cd sd-fuse_nanopi2/tools | ||
./fw_printenv /dev/sdc | grep bootargs | ./fw_printenv /dev/sdc | grep bootargs | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | Android 5.1.1_r6 starts SELinux. By default it is enforcing. You can change it this way: | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
./fw_setenv /dev/sdc bootargs XXX androidboot.selinux=permissive | ./fw_setenv /dev/sdc bootargs XXX androidboot.selinux=permissive | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | This sets it to "permissive". The "XXX" stands for the original bootargs' value.<br/> | |
| − | 2) | + | 2) Update Kernel<br/> |
| − | + | Our customized uboot will check the LCD type when it boots.For a non-Android OS If it recognizes an LCD connected to the NanoPi 2 Fire it will load "uImage" from "boot" otherwise it will load "uImage.hdmi".<br /> | |
| − | + | However for Android these two files don't make any differences for whatever display device it detects. You can use your generated uImage to replace the existing one under "boot".<br/> | |
| − | + | For Debian if your generated kernel is for LCD you need to replace the existing uImage or if your kernel is for HDMI you need to replace the existing uImage.hdmi.<br /> | |
===运行Android或Debian=== | ===运行Android或Debian=== | ||
Revision as of 07:38, 1 March 2016
Contents
1 Introduction
- The NanoPi M2 is a high performance ARM Board after the NanoPi 2 and NanoPi 2 Fire, developed by FriendlyARM for hobbysts, makers and hackers for IOT projects. It integrates Gbit Ethernet port, AXP228 power management unit and supports Android5.1 and Debian.
- Its new style of design makes it smaller than the NanoPi 2 Fire but still keeps all the rich interfaces and ports the NanoPi 2 Fire has. Besides the standard HDMI, USB, audio and Gbit Ethernet it has a Raspberry Pi compatible 40 pin header and supports various video devices including I2C capacitive LCD and CMOS cameras. In addition it has a serial debug port
- Its support for Debian and Android makes it easily applied in various applications. Hardware wise it works with all the existing accessories, LCDs and sensor modules FriendlyARM has developed. Software wise it works with all the existing image files that the NanoPi 2 and NanoPi 2 Fire work with.
2 Features
- CPU: S5P4418, 400Mhz~1.4GHz
- PMU Power Management Unit: AXP228, support software power-off, sleep and wakeup functions
- DDR3 RAM: 32bit 1GB DDR3
- MicroSD Slot x1
- Connectivity: Gbps Ethernet port(RTL8211E)
- Audio: 3.5mm audio jack/Via HDMI
- Microphone: 1 x onboard Microphone
- USB Host: 4 x USB 2.0 Host, two are standard type A ports and the other two are 2.54mm pitch pin headers
- Micro USB: 1 x USB 2.0 Client
- LCD Interface: 0.5 mm pitch SMT FPC seat, for full-color LCD (RGB: 8-8-8)
- HDMI: HDMI 1.4A, Type-A, 1080P60
- DVP Camera Interface: 0.5mm pitch FPC socket. It includes ITU-R BT 601/656 8-bit, I2C and IO
- GPIO1: 2.54mm pitch 40pin, compatible with Raspberry Pi's GPIO. It includes UART, SPI, I2C, PWM, IO etc
- Debug Serial Port: 4Pin 2.54mm pitch pin header
- User Key: 1 x Power , 1 x Reset
- LED: 1 x Power LED, 1 x System LED
- RTC: RTC Pins
- Power: DC 5V/2A
- PCB Dimension(mm): 64 x 56, Six Layer
- OS/Software: u-boot, Android5.1, Debian Jessie 8
3 Diagram, Layout and Dimension
3.1 Layout
- GPIO1 Pin Spec
Pin# Name Pin# Name 1 SYS_3.3V 2 VDD_5V 3 I2C0_SDA 4 VDD_5V 5 I2C0_SCL 6 DGND 7 GPIOD8/PPM 8 UART3_TXD/GPIOD21 9 DGND 10 UART3_RXD/GPIOD17 11 UART4_TX/GPIOB29 12 GPIOD1/PWM0 13 GPIOB30 14 DGND 15 GPIOB31 16 GPIOC14/PWM2 17 SYS_3.3V 18 GPIOB27 19 SPI0_MOSI/GPIOC31 20 DGND 21 SPI0_MISO/GPIOD0 22 UART4_RX/GPIOB28 23 SPI0_CLK/GPIOC29 24 SPI0_CS/GPIOC30 25 DGND 26 GPIOB26 27 I2C1_SDA 28 I2C1_SCL 29 GPIOC8 30 DGND 31 GPIOC7 32 GPIOC28 33 GPIOC13/PWM1 34 DGND 35 SPI2_MISO/GPIOC11 36 SPI2_CS/GPIOC10 37 AliveGPIO3 38 SPI2_MOSI/GPIOC12 39 DGND 40 SPI2_CLK/GPIOC9
This GPIO pin spec is a little bit different from that of the NanoPi 2. Here is a comparison table of the two:40 pins GPIO comparison table
- Debug Port（UART0）
Pin# Name 1 DGND 2 VDD_5V 3 UART_TXD0 4 UART_RXD0
- DVP Camera IF Pin Spec
Pin# Name 1, 2 SYS_3.3V 7,9,13,15,24 DGND 3 I2C0_SCL 4 I2C0_SDA 5 GPIOB14 6 GPIOB16 8,10 NC 11 VSYNC 12 HREF 14 PCLK 16-23 Data bit7-0
- RGB LCD IF Pin Spec
Pin# Name Description 1, 2 VDD_5V 5V Output, it can be used to power LCD modules 11，20，29, 37，38，39，40, 45 DGND Gound 3-10 Blue LSB to MSB RGB blue 12-19 Green LSB to MSB RGB green 21-28 Red LSB to MSB RGB red 30 GPIOB25 available for users 31 GPIOC15 occupied by FriendlyARM one wire technology to recognize LCD models and control backlight and implement resistive touch, not applicable for users 32 XnRSTOUT Form CPU low when system is reset 33 VDEN signal the external LCD that data is valid on the data bus 34 VSYNC vertical synchronization 35 HSYNC horizontal synchronization 36 LCDCLK LCD clock, Pixel frequency 41 I2C2_SCL I2C2 clock signal, for capacitive touch's data transmission 42 I2C2_SDA I2C2 data signal, for capacitive touch's data transmission 43 GPIOC16 interrupt pin for capacitive touch, used with I2C2 44 NC not connected
- Note
- SYS_3.3V: 3.3V power output
- VVDD_5V: 5V power input/output. When the external device’s power is greater than the MicroUSB’s the external device is charging the board otherwise the board powers the external device. The input range is 4.7V ~ 5.6V
- All pins are 3.3V
- GPIO1's pin spec is a little bit different from that of the NanoPi 2. Please refer to this comparison table 40 pins GPIO comparison table
- For more details please refer to the document: NanoPi-M2-1602-Schematic.pdf
3.2 Board Dimension
- For more details please refer to the document: NanoPi-M2-1602-Dimensions(dxf).zip
4 Get Started
4.1 Essentials You Need
Before play with your NanoPi M2 please get the following items ready
- NanoPi M2
- microSD Card/TFCard: Class 10 or Above, minimum 8GB SDHC
- microUSB power. A 5V/2A power is a must
- HDMI monitor or LCD
- USB keyboard and mouse
- A Host running Ubuntu 14.04 64 bit system
4.2 TF Cards We Tested
To make your NanoPi 2 Fire boot and run fast we highly recommand 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 MicroSD Card
4.3.1 Under Windows
Please get the following files from here:[http://wiki.friendlyarm.com/wiki/nanopi2/download/ to download image files.
For LCD or HDMI output please use the following files: nanopi2-debian-sd4g.img.zip Debian image files nanopi2-android-sd4g.img.zip Android image files Flash Utility: win32diskimager.rar Windows utility. Under Linux users can use "dd"
- Please uncompress these files. Insert an SD card(at least 4G) to a Windows PC, run the win32diskimager utility as administrator，On the utility's main window select your SD card's drive and the image files and click on "write" to start flashing the SD card.
- Please insert this card to your NanoPi M2 and power on (with a 5V/2A power source). If the blue LED and green LED are blinking this indicates your NanoPi M2 is successfully booted.
4.3.2 Under Linux Desktop
- 1) Insert your microSD card to your host running Ubuntu and check your SD card's device name
dmesg | tail
Search the messages output by "dmesg" for similar words like "sdc: sdc1 sdc2". If you can find them it means your SD card is recognized as "/dev/sdc". Or you can check that by commanding "cat /proc/partitions"
- 2) Download Flashing Script
git clone https://github.com/friendlyarm/sd-fuse_nanopi2.git cd sd-fuse_nanopi2
- 3) Flash Android Firmware to MicroSD Card
su ./fusing.sh /dev/sdx
(Note: you need to replace "/dev/sdx" with the device name in your system)
When you do “git clone” you have to hit “Y” within 10 seconds after it prompts you to download image files otherwise you will miss the download.
- 4) Flash Debian Firmware to MicroSD Card
./fusing.sh /dev/sdx debian
4.3.3 LCD/HDMI Resolution
When system boots our uboot will check whether it is connected to an LCD. If it recognizes an LCD it will configure its resolution. By default our uboot configures the display to HDMI 720P.
If you want to reset the LCD resolution you can modify file "arch/arm/plat-s5p4418/nanopi2/lcds.c" in the kernel and recompile it.
If your NanoPi 2 connects an HDMI monitor and it runs Android it will automatically set the resolution to an appropriate HDMI mode by checking "EDID". If your NanoPi 2 connects an HDMI monitor and it runs Debian by default it will set the resolution to HDMI 720P and in this case you can set it to 1080P by modifying your kernel's configuration.
4.4 Update Image Files in MicroSD Card From PC Host
If you want to make some changes to the image files in your MicroSD card please follow steps below otherwise you can skip this section.
Please insert your MicroSD card to a PC host running LINUX, mount the boot and rootfs sections of the SD card and follow the steps below:
1) If you want to change your kernel command line parameters you can do it via the fw_setevn utility under "sd-fuse_nanopi2/tools".
Check the current Command Line:
cd sd-fuse_nanopi2/tools ./fw_printenv /dev/sdc | grep bootargs
Android 5.1.1_r6 starts SELinux. By default it is enforcing. You can change it this way:
./fw_setenv /dev/sdc bootargs XXX androidboot.selinux=permissive
This sets it to "permissive". The "XXX" stands for the original bootargs' value.
2) Update Kernel
Our customized uboot will check the LCD type when it boots.For a non-Android OS If it recognizes an LCD connected to the NanoPi 2 Fire it will load "uImage" from "boot" otherwise it will load "uImage.hdmi".
However for Android these two files don't make any differences for whatever display device it detects. You can use your generated uImage to replace the existing one under "boot".
For Debian if your generated kernel is for LCD you need to replace the existing uImage or if your kernel is for HDMI you need to replace the existing uImage.hdmi.
4.5 运行Android或Debian
- 将制作好microSD卡插入NanoPi M2，连接HDMI，最后连接电源(5V 2A)，NanoPi M2会上电自动开机，看到板上的蓝色LED闪烁，这说明系统已经开始启动了，同时电视上也将能看到系统启动的画面。
1）要在电视上进行操作，你需要连接USB鼠标和键盘；如果你选购了LCD配件，则可以直接使用LCD上面的触摸屏进行操作。
2）如果您需要进行内核开发，你最好选购一个串口配件，连接了串口，则可以通过终端对NanoPi M2进行操作。
- 以下是串口的接法，假如你已经拿到串口，则可直接串口供电，不需要再通过microUSB供电，接上串口，即可调试：
- 如果提示输入密码，Debian的root用户的默认密码是两个字母fa。
4.6 通过VNC和ssh登录Debian
如果你是祼板运行系统（既没有连接LCD也没有连接HDMI），你可以使用手机或电脑到这里下载并安装一个名为VNC Viewer的软件，用VNC连接到NanoPi M2，默认密码为：fa123456 。
以下是在iPhone上用VNC登录NanoPi M2的画面：
你也可以通过 ssh -l root 192.168.8.1 命令在终端上登录，默认的root用户密码是 fa 。
5 Debian系统的使用
5.1 连接有线网络
NanoPi M2在加电开机前如果已正确的连接网线，则系统启动时会自动获取IP地址，如果没有连接网线、没有DHCP服务或是其它网络问题，则会导致获取IP地址失败，同时系统启动会因此等待约15~60秒的时间。
- 1) 配置MAC地址
板子没有提供有效的Ethernet的MAC地址，系统在连接网络时会自动生成一个随机的MAC地址，您可以修改 /etc/network/interfaces.d/eth0 ，配置一个固定的MAC地址：
vi /etc/network/interfaces.d/eth0
以下是配置文件的具体内容：
auto eth0 allow-hotplug eth0 iface eth0 inet dhcp hwaddress 76:92:d4:85:f3:0f
其中"hwaddress" 就是用来指定MAC地址，"76:92:d4:85:f3:0f"是一个随机生成的地址，为防止冲突导致网络问题，请修改为一个不同的且有效的地址。
需要注意的一点是，MAC地址必须符合IEEE的规则，请不要随意指定，否则会出现无法获取IP地址、无法上网等问题。
修改完配置文件并保存后，可重启板子或直接下列命令重启网络服务：
systemctl restart networking
5.2 安装Debian软件包
我们提供的是标准的Debian jessie系统，你可以使用apt-get等命令来安装软件包，如果板子是首次运行，需要先用以下命令更新软件包列表：
apt-get update然后就可以安装软件包了，例如要安装ftp服务器，使用以下命令：
apt-get install vsftpd如果软件包下载速度不理想，你可以编辑 /etc/apt/sources.list 更换一个更快的源服务器，这个网址[1]有一份完整的源镜像服务器列表，注意要选用一个带armhf架构的。
6 如何编译系统
6.1 安装交叉编译器
首先下载并解压编译器:
git clone https://github.com/friendlyarm/prebuilts.git sudo mkdir -p /opt/FriendlyARM/toolchain sudo tar xf prebuilts/gcc-x64/arm-cortexa9-linux-gnueabihf-4.9.3.tar.xz -C /opt/FriendlyARM/toolchain/
然后将编译器的路径加入到PATH中，用vi编辑vi ~/.bashrc，在末尾加入以下内容：
export PATH=/opt/FriendlyARM/toolchain/4.9.3/bin:$PATH export GCC_COLORS=auto
执行一下~/.bashrc脚本让设置立即在当前shell窗口中生效，注意"."后面有个空格：
. ~/.bashrc这个编译器是64位的，不能在32位的Linux系统上运行，安装完成后，你可以快速的验证是否安装成功：
arm-linux-gcc -v Using built-in specs. COLLECT_GCC=arm-linux-gcc COLLECT_LTO_WRAPPER=/opt/FriendlyARM/toolchain/4.9.3/libexec/gcc/arm-cortexa9-linux-gnueabihf/4.9.3/lto-wrapper Target: arm-cortexa9-linux-gnueabihf Configured with: /work/toolchain/build/src/gcc-4.9.3/configure --build=x86_64-build_pc-linux-gnu --host=x86_64-build_pc-linux-gnu --target=arm-cortexa9-linux-gnueabihf --prefix=/opt/FriendlyARM/toolchain/4.9.3 --with-sysroot=/opt/FriendlyARM/toolchain/4.9.3/arm-cortexa9-linux-gnueabihf/sys-root --enable-languages=c,c++ --with-arch=armv7-a --with-tune=cortex-a9 --with-fpu=vfpv3 --with-float=hard ... Thread model: posix gcc version 4.9.3 (ctng-1.21.0-229g-FA)
6.2 编译U-Boot
下载U-Boot源代码并编译，注意分支是nanopi2-lollipop-mr1:
git clone https://github.com/friendlyarm/uboot_nanopi2.git cd uboot_nanopi2 git checkout nanopi2-lollipop-mr1 make s5p4418_nanopi2_config make CROSS_COMPILE=arm-linux-
编译成功结束后您将获得u-boot.bin，您可以通过fastboot来更新正在运行的NanoPi M2板上SD的U-Boot，方法如下：
1) 在电脑上先用命令 sudo apt-get install android-tools-fastboot 安装 fastboot 工具;
2) 用串口配件连接NanoPi M2和电脑，在上电启动的2秒内，在串口终端上按下回车，进入 u-boot 的命令行模式；
3) 在u-boot 命令行模式下输入命令 fastboot 回车，进入 fastboot 模式；
4) 用microUSB线连接NanoPi M2和电脑，在电脑上输入以下命令烧写u-boot.bin:
fastboot flash bootloader u-boot.bin
注意：不建议直接使用dd来更新SD卡，否则有可能会导致无法正常启动。
6.3 准备mkimage
编译内核需要用到U-Boot中的工具mkimage，因此，在编译内核uImage前，您需要保证您的主机环境可以成功运行它。
你可以直接使用命令 sudo apt-get install u-boot-tools 来安装，也可以自己编译并安装：
cd uboot_nanopi2 make CROSS_COMPILE=arm-linux- tools sudo mkdir -p /usr/local/sbin && sudo cp -v tools/mkimage /usr/local/sbin
6.4 编译Linux kernel
6.4.1 编译内核
- 下载内核源代码
git clone https://github.com/friendlyarm/linux-3.4.y.git cd linux-3.4.y git checkout nanopi2-lollipop-mr1
NanoPi2内核所属的分支是nanopi2-lollipop-mr1，在开始编译前先切换分支。
- 编译Android内核
make nanopi2_android_defconfig touch .scmversion make uImage
- 编译Debian内核
make nanopi2_linux_defconfig touch .scmversion make uImage
编译成功结束后，新生成的内核烧写文件为 arch/arm/boot/uImage，此内核支持HDMI 720p输出，用于替换掉SD卡boot分区下的uImage.hdmi。
如果要支持HDMI 1080p，则需要修改内核配置：
touch .scmversion make nanopi2_linux_defconfig make menuconfig Device Drivers --> Graphics support --> Nexell Graphics --> [ ] LCD [*] HDMI (0) Display In [0=Display 0, 1=Display 1] Resolution (1920 * 1080p) ---> make uImage
使用新生成的uImage替换掉SD卡boot分区下的uImage.hdmi即可获得HDMI 1080p输出。
如果要编译支持LCD显示的内核，则需要修改内核配置：
touch .scmversion make nanopi2_linux_defconfig make menuconfig Device Drivers --> Graphics support --> Nexell Graphics --> [*] LCD [ ] HDMI make uImage
启用LCD，同时取消HDMI，然后退出并保存配置，编译后即可获得支持LCD显示的uImage，用于替换SD卡boot分区下的uImage。
6.4.2 编译内核模块
Android包含内核模块，位于system分区的 /lib/modules/ 下，如果您有新的内核模块或者内核配置有变化，则需要重新编译。
首先编译内核源代码中的模块：
cd linux-3.4.y make CROSS_COMPILE=arm-linux- modules
另外有2个内核模块的源代码位于Android源代码中，可使用以下命令来编译：
cd /opt/FriendlyARM/s5p4418/android ./vendor/friendly-arm/build/common/build-modules.sh
其中 “/opt/FriendlyARM/s5p4418/android” 是指Android源代码的TOP目录，使用参数“-h”可查看帮助。
编译成功结束后，会显示生成的内核模块。
6.5 编译Android
- 搭建编译环境
搭建编译Android的环境建议使用64位的Ubuntu 14.04，安装需要的包即可。
sudo apt-get install bison g++-multilib git gperf libxml2-utils make python-networkx zip sudo apt-get install flex libncurses5-dev zlib1g-dev gawk minicom
更多说明可查看 https://source.android.com/source/initializing.html 。
- 下载源代码
Android源代码的下载需要使用repo，其安装和使用请查看 https://source.android.com/source/downloading.html 。
mkdir android && cd android repo init -u https://github.com/friendlyarm/android_manifest.git -b nanopi2-lollipop-mr1 repo sync
其中“android”是指工作目录。
- 编译系统
source build/envsetup.sh lunch aosp_nanopi2-userdebug make -j8
编译成功完成后，目录 out/target/product/nanopi2/ 下包含可用于烧写的image文件。
7 扩展连接
7.1 连接USB(FA-CAM202)200万摄像头模块
- NanoPi M2使用Debian系统，假设你已接好LCD屏或者HDMI，进入系统后，点击左下角的菜单键“Other”-->xawtv9，打开USB Camera软件。进入“welcome to xawtv！”，选择OK即可进行拍照。
7.2 连接CMOS 500万摄像头模块
- NanoPi M2使用Android5.1系统，假设你已经接好LCD屏或者HDMI，进入系统后，直接点击“camera”图标，即可打开摄像头进行拍照。
7.3 连接USB摄像头使用OpenCV
- OpenCV的全称是Open Source Computer Vision Library，是一个跨平台的计算机视觉库。
- NanoPi M2跑Debian系统时，接USB Camera，可直接使用官方的OpenCV。
1、以下介绍的是NanoPi M2用C++使用的OpenCV：
- 首先需要保证你的NanoPi M2能连外网，假如你有串口，直接串口登陆超级终端（或者ssh登陆）。进入系统后，输入用户名（root），密码（fa）登陆；
- 以下命令在超级终端执行：
apt-get update apt-get install libcv-dev libopencv-dev
2、NanoPi M2烧写Debian系统启动后，接上USB Camera，使用Debian系统自带的摄像头软件测试，确定摄像头能正常使用。
3、通过终端执行命令，查看你的摄像头设备：
ls /dev/video*
- 注：video9 是你的USB摄像头设备（注：video0到8均被其它设备占用了）
4、opencv的测试代码（官方C++示例代码）在 /home/fa/Documents/opencv-demo, 使用以下命令即可编译：
cd /home/fa/Documents/opencv-demo make
编译成功后，得到可执行文件demo
5、这里特别说明：目前NanoPi M2的内核注册了9个video设备，而opencv的官方源码定义了最多只能使用8个Camera，所以这里需要临时删除一个video设备，以下命令则是删除video0：
rm /dev/video0 mv /dev/video9 /dev/video0
6、以下步骤需要在NanoPi M2上连接键盘后执行：
./demo你便可以看到opencv已经用起来，如图：
7.4 连接USB WiFi
- 点击此处,内核编译链接[2]
8 更多OS
8.1 Ubuntu-Core
Ubuntu-Core是一个轻量级的Ubuntu系统，无桌面环境，可通过ssh登录。
仅提供给进阶爱好者交流使用，不对该系统提供专业技术支持。
- 访问此处下载地址下载系统固件。
- 将固件解压后，在Windows下使用友善官方提供 win32diskimager 工具烧写即可。
- 烧写完成后，将SD卡插入NanoPi M2，上电即可体验Ubuntu-Core。
- 登录账号：root或fa ; 登录密码：fa
8.2 Ubuntu-Mate
Ubuntu-Mate基于Ubuntu系统，使用的桌面环境是Mate-desktop，界面简洁易用，需配合LCD或者HDMI使用，可通过ssh登录。
仅提供给进阶爱好者交流使用，不对该系统提供专业技术支持。
- 访问此处下载地址下载系统固件。
- 将固件解压后，在Windows下使用友善官方提供 win32diskimager 工具烧写Ubuntu-Mate即可。
- 烧写完成后，将SD卡插入NanoPi M2，上电即可体验Ubuntu-Mate。
- 登录账号：root或fa ; 登录密码：fa
8.3 Kali
- 首先访问此处[3]的下载地址下载需要的固件文件;
- 准备大于8G的高速microSD卡(建议使用友善官方测试过的SD卡),并插入linux主机，通过命令sudo fdisk -l 查看该sd卡是哪个设备即/dev/sd*。
- 下载后把文件写到卡里，使用超级用户权限执行下列命令：
xzcat kali-2.0-nanopi2.img.xz | dd of=<YOURDEVICE> bs=1m
- 烧写完成，将卡插入设备，上电即可开始体验Kali操作系统。
说明：此文件系统是由Kali官方制作，我们仅提供下载链接供爱好者使用，不对此做技术支持。
9 源代码和固件下载链接
10 资源链接
- 原理图 (NanoPi-M2-1602-Schematic.pdf)
- 尺寸图 (NanoPi-M2-1602-Dimensions(dxf).zip)
- S5P4418 Datasheet (S5P4418_Datasheet_0.1.pdf)
