实验基本条件：
Orange_Pi_PC *1（含5V3A电源，32G高速卡）
参考资料：
http://www.orangepi.cn/orangepipc/index_cn.html
7英寸TFT液晶显示屏
参考资料：
https://www.aliexpress.com/item/7inch-TFT-LCD-Screen-for-Orange-Pi-H3-chip-Boards/32831758014.html
系统：Armbian Xenial For Orange_Pi_PC
参考资料：
https://www.armbian.com/orange-pi-pc/
烧录工具：SDFormatter ，Win32DiskImager
PS：顺便吐槽一下，在某宝上购买以上产品不带任何配件，即所有电源，信号线都要独立购买。切记！！！
Step1：
从Armbian官网上下载Armbian Xenial版本的镜像，然后解压得到Armbian_5.38_Orangepipc_Ubuntu_xenial_default_3.4.113_desktop.img文件
然后将TF卡装到SD卡套上，插入笔记本的SD卡槽，启动SDFormatter，并将TF卡格式化。
格式化完成后，关闭SDFormatter，并打开Win32DiskImager，选择刚才解压的镜像，选择正确的TF卡盘符，点击write即可烧录。
烧录完成后，安全弹出SD卡，并将TF卡插到Orange_Pi_PC的TF卡槽。
正确连接液晶显示屏驱动板，驱动板与Pi_PC之间用HDMI线连接，Pi_PC接上局域网，局域网启用DHCP。
确认信号线连接好之后，就可以上电了，液晶显示屏的驱动板也是要独立供电的。
Step2:
上电后，网络接口会闪烁，如果网络接口没反应的或，应该检查系统是不是没刷好，还是TF卡没装对。
如果一切正常的话，大概2分钟左右，网络接口的灯就常亮了。这时就可以通过SSH远程连接了，如果不知道IP的话，可以上路由器查看在线客户，或者用arp -a查找。
首次登陆系统需要修改默认root的密码（默认密码是：1234）
login as: root
[email protected]'s password:
You are required to change your password immediately (root enforced)
___ ____ _ ____ ____
/ _ \ _ __ __ _ _ __ __ _ ___ | _ \(_) | _ \ / ___|
| | | | '__/ _` | '_ \ / _` |/ _ \ | |_) | | | |_) | |
| |_| | | | (_| | | | | (_| | __/ | __/| | | __/| |___
\___/|_| \__,_|_| |_|\__, |\___| |_| |_| |_| \____|
|___/
Welcome to ARMBIAN 5.38 stable Ubuntu 16.04.3 LTS 3.4.113-sun8i
System load: 0.01 0.21 0.14 Up time: 5 min
Memory usage: 4 % of 1000MB IP: 192.168.1.146
CPU temp: 35°C
Usage of /: 75% of 2.9G
Warning: a reboot is needed to finish resizing the filesystem
Please reboot the system as soon as possible
New to Armbian? Check the documentation first: https://docs.armbian.com
Changing password for root.
#修改root的密码，需要先输入原来的默认密码才能更改新密码
(current) UNIX password:
Enter new UNIX password:
Retype new UNIX password:
Thank you for choosing Armbian! Support: www.armbian.com
Creating a new user account. Press <Ctrl-C> to abort
Desktop environment will not be enabled if you abort the new user creation
#新建一个用户
Please provide a username (eg. your forename): kwan
Trying to add user kwan
Adding user `kwan' ...
Adding new group `kwan' (1000) ...
Adding new user `kwan' (1000) with group `kwan' ...
Creating home directory `/home/kwan' ...
Copying files from `/etc/skel' ...
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
Changing the user information for kwan
Enter the new value, or press ENTER for the default
Full Name []:
Room Number []:
Work Phone []:
Home Phone []:
Other []:
Is the information correct? [Y/n] y
Dear kwan, your account kwan has been created and is sudo enabled.
Please use this account for your daily work from now on.
#这时，系统会检测到显示屏，并提示修改显示参数
Your display settings are currently 720p (1280x720). To change this use the
h3disp utility. Do you want to change display settings now? [nY] y
Usage: h3disp [-h/-H] -m [video mode] [-d] [-c [0-2]]
############################################################################
This is a tool to set the display resolution of your Orange
Pi by patching script.bin.
In case you use an HDMI-to-DVI converter please use the -d switch.
The resolution can be set using the -m switch. The following resolutions
are currently supported:
480i use "-m 480i" or "-m 0"
576i use "-m 576i" or "-m 1"
480p use "-m 480p" or "-m 2"
576p use "-m 576p" or "-m 3"
720p50 use "-m 720p50" or "-m 4"
720p60 use "-m 720p60" or "-m 5"
1080i50 use "-m 1080i50" or "-m 6"
1080i60 use "-m 1080i60" or "-m 7"
1080p24 use "-m 1080p24" or "-m 8"
1080p50 use "-m 1080p50" or "-m 9"
1080p60 use "-m 1080p60" or "-m 10"
1080p25 use "-m 1080p25" or "-m 11"
1080p30 use "-m 1080p30" or "-m 12"
1080p24_3d use "-m 1080p24_3d" or "-m 13"
720p50_3d use "-m 720p50_3d" or "-m 14"
720p60_3d use "-m 720p60_3d" or "-m 15"
1080p24_3d use "-m 1080p24_3d" or "-m 23"
720p50_3d use "-m 720p50_3d" or "-m 24"
720p60_3d use "-m 720p60_3d" or "-m 25"
1080p25 use "-m 1080p25" or "-m 26"
1080p30 use "-m 1080p30" or "-m 27"
4kp30 use "-m 4kp30" or "-m 28"
4kp25 use "-m 4kp25" or "-m 29"
800x480 use "-m 800x480" or "-m 31"
1024x768 use "-m 1024x768" or "-m 32"
1280x1024 use "-m 1280x1024" or "-m 33"
1360x768 use "-m 1360x768" or "-m 34"
1440x900 use "-m 1440x900" or "-m 35"
1680x1050 use "-m 1680x1050" or "-m 36"
2048x1536 use "-m 2048x1536" or "-m 37"
Two examples:
'h3disp -m 1080p60 -d' ([email protected] DVI)
'h3disp -m 720i' ([email protected] HDMI)
You can also specify the colour-range for your HDMI-display with the -c switch.
The following values for -c are currently supported:
0 -- RGB range 16-255 (Default, use "-c 0")
1 -- RGB range 0-255 (Full range, use "-c 1")
2 -- RGB range 16-235 (Limited video, "-c 2")
############################################################################
推荐：h3disp -m 1024x768
修改后会提示：Now trying to patch script.bin with your settings. Successfully finished. Please reboot for changes to take effect 必须重启才能使配置生效。
如果现在不修改的话也可以，稍后可以通过armbian-config工具来配置。
修改IP地址，使Pi_PC可以上网更新，并运行apt update,apt upgrade来更新。
更新完之后，运行 sudo timedatectl set-timezone Asia/Shanghai 更新时区。
运行 sudo armbian-config 进入如下界面
选择System
选择Display，然后选择合适的分辨率输出，，选择输出类型
系统会提示重启。
正常情况下，显示屏会有画面看的了。
如果显示屏一直是白屏，请检查：
1、显示屏是否正常工作，试试连接其他HDMI输出设备。
2、HDMI连接线是否松动。
3、分辨率是否正确，desktop_service是否关闭。
4、重新安装lightdm （sudo apt install lightdm），并修改默认自登陆账户(sudo vi /etc/default/nodm)
参考：https://docs.armbian.com/User-Guide_Getting-Started/