“Debian Base 系统使用”的版本间的差异

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第61行: 第61行:
 
   Max work group size                            256
 
   Max work group size                            256
 
...
 
...
 +
</syntaxhighlight>
 +
===网络设置===
 +
系统下有ifupdown和network-manager两套软件在管理网络,ifupdown的配置文件为/etc/network/interfaces,network-manager通过命令行nmcli来设置网络。network-manager功能更强大,对于/etc/network/interfaces中声明过的网络接口network-manager默认不再管理。系统默认没有对/etc/network/interfaces进行设置,从而network-manager接管了eth0,配置了DHCP
 +
*使用ifupdown设置网络
 +
编辑/etc/network/interfaces,参考设置如下:<br />
 +
<syntaxhighlight lang="bash">
 +
auto eth0
 +
iface eth0 inet static
 +
    address 192.168.0.10
 +
    gateway 192.168.0.1
 +
    netmask 255.255.255.0
 +
    broadcast 192.168.0.255
 +
    dns-nameservers 1.2.4.8 114.114.114.114
 +
</syntaxhighlight>
 +
重启系统生效
 +
*使用network-manager的命令行工具nmcli设置网络
 +
常用命令:
 +
<syntaxhighlight lang="bash">
 +
$ nmcli connection show
 +
  # 查看连接
 +
$ nmcli device status
 +
  # 查看网络接口状态
 +
$ nmcli device show
 +
  # 查看网络接口网络信息
 +
$ nmcli general status
 +
  # 查看总体状态
 +
$ nmcli connection add con-name "my_connection" type ethernet ifname eth0
 +
  # 添加连接
 +
$ nmcli connection up my_connection
 +
  # 使用连接
 +
$ nmcli connection down my_connection
 +
  # 不使用连接
 +
$ nmcli connection delete my_connection
 +
  # 删除连接
 +
$ nmcli connection show id my_connection
 +
  # 查看连接详细信息
 +
</syntaxhighlight>
 +
设置静态IP命令参考如下:<br />
 +
<syntaxhighlight lang="bash">
 +
$ nmcli connection add con-name my_static_ip ifname eth0 type ethernet ip4 192.168.0.10/24 gw4 192.168.0.1
 +
  # 添加名为"my_static_ip"的静态IP连接
 +
  # 生成配置文件/etc/NetworkManager/system-connections/my_static_ip
 +
$ nmcli connection modify my_static_ip ipv4.dns "1.2.4.8 8.8.8.8"
 +
  # 设置DNS
 +
$ nmcli connection up my_static_ip
 +
  # 使用连接
 +
$ nmcli connection down my_static_ip
 +
  # 不使用连接
 +
$ nmcli connection delete my_static_ip
 +
  # 删除连接
 +
</syntaxhighlight>
 +
设置动态IP命令参考如下:<br />
 +
<syntaxhighlight lang="bash">
 +
$ nmcli connection add con-name my_dynamic_ip ifname eth0 type ethernet
 +
  # 添加名为"my_dynamic_ip"的动态IP连接
 +
  # 生成配置文件/etc/NetworkManager/system-connections/my_dynamic_ip
 +
$ nmcli connection up my_dynamic_ip
 +
  # 使用连接
 +
$ nmcli connection down my_dynamic_ip
 +
  # 不使用连接
 +
$ nmcli connection delete my_dynamic_ip
 +
  # 删除连接
 +
</syntaxhighlight>
 +
连接wifi命令参考如下:<br />
 +
<syntaxhighlight lang="bash">
 +
$ nmcli device wifi list
 +
  # 查看wifi列表
 +
$ nmcli device wifi connect norco_2.4G password norco85258506
 +
  # 连接wifi
 +
  # 生成配置文件/etc/NetworkManager/system-connections/norco_2.4G
 +
$ nmcli connection down norco_2.4G
 +
  # 关闭连接
 +
$ nmcli connection delete norco_2.4G
 +
  # 删除连接
 +
$ nmcli radio wifi off
 +
  # 关闭wifi
 +
$ nmcli radio wifi on
 +
  # 打开wifi
 
</syntaxhighlight>
 
</syntaxhighlight>
 
==QT开发==
 
==QT开发==

2020年11月3日 (二) 11:12的版本

基础信息

  • 用户密码
user: root
passwd: root

使用示例

视频硬件编解码

  • 使用gstreamer播放视频
$ gst-play-1.0 /usr/local/test.mp4

277317066.jpg

  • 播放4K视频
$ gst-launch-1.0 playbin uri=file:///root/4k.mp4

531422585.jpg

  • 列出一些gstreamer命令
$ gst-launch-1.0 playbin uri=file:///usr/local/test.mp4
$ gst-launch-1.0 uridecodebin uri=file:///usr/local/test.mp4 ! kmssink
$ gst-launch-1.0 filesrc location=/usr/local/test.mp4 ! queue ! qtdemux  name=dmux dmux.video_0 ! queue ! h264parse ! mppvideodec ! kmssink dmux.audio_0 ! queue ! aacparse ! faad ! autoaudiosink
$ gst-inspect-1.0 kmssink
  # 查看插件信息
$ gst-discoverer-1.0 /usr/local/test.mp4
  # 查看视频信息

OpenCL

  • 安装并运行clinfo,查看OpenCL相关信息
$ sudo apt-get install -f -y clinfo
$ clinfo
Number of platforms                               1
  Platform Name                                   ARM Platform
  Platform Vendor                                 ARM
  Platform Version                                OpenCL 1.2 v1.r14p0-01rel0-git(a79caef).8ddfd7584149d9238dced4e406610de7
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addy
  Platform Extensions function suffix             ARM

  Platform Name                                   ARM Platform
Number of devices                                 1
  Device Name                                     Mali-T860
  Device Vendor                                   ARM
  Device Vendor ID                                0x8602000
  Device Version                                  OpenCL 1.2 v1.r14p0-01rel0-git(a79caef).8ddfd7584149d9238dced4e406610de7
  Driver Version                                  1.2
  Device OpenCL C Version                         OpenCL C 1.2 v1.r14p0-01rel0-git(a79caef).8ddfd7584149d9238dced4e406610de7
  Device Type                                     GPU
  Device Profile                                  FULL_PROFILE
  Max compute units                               4
  Max clock frequency                             800MHz
  Device Partition                                (core)
    Max number of sub-devices                     0
    Supported partition types                     None
  Max work item dimensions                        3
  Max work item sizes                             256x256x256
  Max work group size                             256
...

网络设置

系统下有ifupdown和network-manager两套软件在管理网络,ifupdown的配置文件为/etc/network/interfaces,network-manager通过命令行nmcli来设置网络。network-manager功能更强大,对于/etc/network/interfaces中声明过的网络接口network-manager默认不再管理。系统默认没有对/etc/network/interfaces进行设置,从而network-manager接管了eth0,配置了DHCP

  • 使用ifupdown设置网络

编辑/etc/network/interfaces,参考设置如下:

auto eth0
iface eth0 inet static
    address 192.168.0.10
    gateway 192.168.0.1
    netmask 255.255.255.0
    broadcast 192.168.0.255
    dns-nameservers 1.2.4.8 114.114.114.114

重启系统生效

  • 使用network-manager的命令行工具nmcli设置网络

常用命令:

$ nmcli connection show
  # 查看连接
$ nmcli device status
  # 查看网络接口状态
$ nmcli device show
  # 查看网络接口网络信息
$ nmcli general status
  # 查看总体状态
$ nmcli connection add con-name "my_connection" type ethernet ifname eth0
  # 添加连接
$ nmcli connection up my_connection
  # 使用连接
$ nmcli connection down my_connection
  # 不使用连接
$ nmcli connection delete my_connection
  # 删除连接
$ nmcli connection show id my_connection
  # 查看连接详细信息

设置静态IP命令参考如下:

$ nmcli connection add con-name my_static_ip ifname eth0 type ethernet ip4 192.168.0.10/24 gw4 192.168.0.1
  # 添加名为"my_static_ip"的静态IP连接
  # 生成配置文件/etc/NetworkManager/system-connections/my_static_ip
$ nmcli connection modify my_static_ip ipv4.dns "1.2.4.8 8.8.8.8"
  # 设置DNS
$ nmcli connection up my_static_ip
  # 使用连接
$ nmcli connection down my_static_ip
  # 不使用连接
$ nmcli connection delete my_static_ip
  # 删除连接

设置动态IP命令参考如下:

$ nmcli connection add con-name my_dynamic_ip ifname eth0 type ethernet
  # 添加名为"my_dynamic_ip"的动态IP连接
  # 生成配置文件/etc/NetworkManager/system-connections/my_dynamic_ip
$ nmcli connection up my_dynamic_ip
  # 使用连接
$ nmcli connection down my_dynamic_ip
  # 不使用连接
$ nmcli connection delete my_dynamic_ip
  # 删除连接

连接wifi命令参考如下:

$ nmcli device wifi list
  # 查看wifi列表
$ nmcli device wifi connect norco_2.4G password norco85258506
  # 连接wifi
  # 生成配置文件/etc/NetworkManager/system-connections/norco_2.4G
$ nmcli connection down norco_2.4G
  # 关闭连接
$ nmcli connection delete norco_2.4G
  # 删除连接
$ nmcli radio wifi off
  # 关闭wifi
$ nmcli radio wifi on
  # 打开wifi

QT开发

qt程序测试脚本

系统中添加了qt_test.sh和qt_test_touchscreen.sh测试脚本,在系统终端下直接运行

基于linuxfb或eglfs显示运行qt程序

$ qt_test.sh linuxfb
$ qt_test.sh eglfs

1365219484.jpg

基于libinput或tslib或evdev适配触摸屏运行qt程序

$ qt_test_touchscreen.sh libinput
$ qt_test_touchscreen.sh tslib
$ qt_test_touchscreen.sh evdev

285324002.jpg

注意:在一次开机系统运行过程中,若使用了DRM,则不可再直接操作FB。在qt_test.sh脚本中启用了QT_QPA_FB_DRM=1,而qt_test_touchscreen.sh脚本为了可能会使用到tslib校准程序没有设置QT_QPA_FB_DRM,一次开机仅可选择其中一个脚本执行

搭建qt开发环境

主机PC端环境为Ubuntu16.04,目标板系统为debian base系统,默认使用root用户自动登录,并支持root用户ssh远程登录,系统中移植了qt,支持eglfs、linuxfb显示插件。 SDK与系统镜像一同发布,从相应的烧录包中获取SDK。SDK中包含交叉编译工具链、qmake、与目标板系统qt环境。解压SDK到任意目录$TOP_DIR(示例中以路径/opt/data为例),并运行开发环境配置脚本

$ tar host.tar.gz -C $TOP_DIR
$ cd $TOP_DIR/host
$ ./relocate-sdk.sh

使用终端命令行编译运行qt程序

qt程序使用SDK中的qt5 examples例程,通过qmake、make命令进行编译

$ export PATH=$TOP_DIR/host/bin:$PATH
$ cd $TOP_DIR/host/aarch64-buildroot-linux-gnu/sysroot/usr/lib/qt/examples/opengl/hellowindow
$ qmake
$ make

生成hellowindow程序,可通过scp拷贝到目标板中,并配置qt运行环境变量后运行

$ scp hellowindow root@10.168.1.157:
$ ssh root@10.168.1.157
$ export LD_LIBRARY_PATH=/opt/data/target/usr/lib
$ export QT_QPA_PLATFORM_PLUGIN_PATH=/opt/data/target/usr/lib/qt/plugins

指定eglfs显示插件运行程序

$ ./hellowindow -platform eglfs

Projects 0.jpg

指定linuxfb显示插件运行程序

$ ./calculator -platform linuxfb

使用qtcreator开发调试qt程序

qtcreator集成编辑、编译、运行、调试环境于一体,提升开发效率

安装qtcreator

$ sudo apt-get install qtcreator


添加Qt Versions
Tools --> Options --> Build & Run --> Qt Versions --> Add --> 选中qmake路径 --> Apply
Screenshot from 2020-08-11 14-23-21.png


添加Compilers
Tools --> Options --> Build & Run --> Compilers --> Add --> GCC -- 选中g++路径 --> Apply
注意:选中g++路径,并修改ABI一栏明确指示平台架构为arm
Screenshot from 2020-08-11 14-21-33.png


添加Debuggers(可选项)
Tools --> Options --> Build & Run --> Debuggers --> Add --> 选中gdb路径 --> Apply
Screenshot from 2020-08-11 14-21-51.png


添加Devices(可选项)
Tools --> Options --> Devices --> Add --> General Linux Device --> start Wizard
GDB Server executable路径为: /opt/data/target/usr/bin/gdbserver
Screenshot from 2020-08-11 14-24-23.png

并点击"Test"测试设备联通
Device Test.png


添加Kits
Tools --> Options --> Build & Run --> Kits --> Add --> Apply
Screenshot from 2020-08-11 14-25-12.png


打开 calculator 工程并选择Kits
Welcome --> Open Porject --> 选择工程路径 /opt/data/host/aarch64-buildroot-linux-gnu/sysroot/usr/lib/qt/examples/widgets/widgets/calculator/calculator.pro --> Configure Project
Screenshot from 2020-08-11 17-04-50.png


编译运行 calculator
Build --> Build Project "calculator" --> 重启qtcreator
Projects --> debian-kit --> Run
注意:找到 Run Environment --> Details --> Batch Edit 添加QT运行环境变量
Screenshot from 2020-08-11 17-13-29.png

Build --> Run
481762326.jpg


配置debug模式
Projects --> debian-kit --> Build
注意:找到 Build Steps --> qmake --> Details --> Additional arguments --> 添加 QMAKE_CXXFLAGS+=-g
Screenshot from 2020-08-11 17-36-06.png


重新编译并调试运行
Build --> Clean Project "calculator"
Debug --> Start Debugging --> Start Debugging
Screenshot from 2020-08-11 17-33-48.png

378111369.jpg