MY-IMX Linux-4.1.15 QT5 Program Build Manual

Compile the host environment

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• Compile the host CPU architecture: 64-bit
• Compile the host system: Linux
• Linux distribution: Ubuntu
• Ubuntu version number: 14.04.5
• Ubuntu version type: desktop version
• Ubuntu system type: x86-64

Installing the SDK

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Download SDK

　　Download the SDK package file in the "2.3_System_Linux-4.1.15/03_Tools" directory of the network disk.
　　MY-IMX6EK140、MY-IMXEK40P：fsl-imx-fb-glibc-x86_64-meta-toolchain-qt5-cortexa7hf-neon-toolchain-4.1.15-2.1.0.sh
　　MY-IMX6EK200、MY-IMX-EK314、MY-IMX-EK336：fsl-imx-fb-glibc-x86_64-meta-toolchain-qt5-cortexa9hf-neon-toolchain-4.1.15-2.1.0.sh

Install SDK (MY-IMX6EK140, MY-IMXEK40P example)

• Copy the downloaded package file to the compiled host.
• Modify the permissions of the pre-installation directory

$ chmod 777 /opt -R

• Install the SDK package file

$ ./fsl-imx-fb-glibc-x86_64-meta-toolchain-qt5-cortexa7hf-neon-toolchain-4.1.15-2.1.0.sh

Freescale i.MX Release Distro SDK installer version 4.1.15-2.1.0
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Enter target directory for SDK (default: /opt/fsl-imx-fb/4.1.15-2.1.0):
You are about to install the SDK to "/opt/fsl-imx-fb/4.1.15-2.1.0". Proceed[Y/n]? Y
Extracting SDK.......................................................................................................................................................done
Setting it up...done
SDK has been successfully set up and is ready to be used.
Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
 $ . /opt/fsl-imx-fb/4.1.15-2.1.0/environment-setup-cortexa7hf-neon-poky-linux-gnueabi

• Create oe-device-extra.pri file to prevent error when calling qmake

$ touch /opt/fsl-imx-fb/4.1.15-2.1.0/sysroots/cortexa7hf-neon-poky-linux-gnueabi/usr/lib/qt5/mkspecs/oe-device-extra.pri

Compile the QT application

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Configuring cross compilation tool environment variables

$ source /opt/fsl-imx-fb/4.1.15-2.1.0/environment-setup-cortexa7hf-neon-poky-linux-gnueabi

Compile the QT Demo program

• Download QT Demo source package
  Download myzr-qt5-demo.tar on the network disk "2.3_ system _linux-4.1.15/05_my-demo" and copy it to the compiler host.
• Unzip QT Demo source package

$ tar xf myzr-qt5-demo.tar

• Enter the QT Demo project directory

$ cd myzr-qt5-demo/AboutUs

• Create makefiles for the project

$ qmake

• Compilation project

$ make

/opt/fsl-imx-fb/4.1.15-2.1.0/sysroots/x86_64-pokysdk-linux/usr/bin/qt5/uic widget.ui -o ui_widget.h
arm-poky-linux-gnueabi-g++  -march=armv7ve -mfpu=neon  -mfloat-abi=hard -mcpu=co
......
arm-poky-linux-gnueabi-g++  -march=armv7ve -mfpu=neon  -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/opt/fsl-imx-fb/4.1.15-2.1.0/sysroots/cortexa7hf-neon-poky-linux-gnueabi -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -Wl,-O1 -o AboutUs main.o widget.o qrc_source.o moc_widget.o   -lQt5Widgets -lQt5Gui -lQt5Core -lGLESv2 -lEGL -lpthread

• View the compiled target file

$ file AboutUs

AboutUs: ELF 32-bit LSB executable, ARM, EABI5 version 1 (GNU/Linux), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 2.6.32, BuildID[sha1]=38367b0a95b8fe7402e2377c11626581c07f9c9d, not stripped

Running target program

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• Copy the compiled AboutUs to the evaluation board.
• Execution target program

$ ./AboutUs -platform eglfs -plugin evdevtouch:/dev/input/event0

QEglFSVivIntegration will set environment variable FB_MULTI_BUFFER=2 to enable double buffering and vsync.
 If this is not desired, you can override this via: export QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1
Unable to query physical screen size, defaulting to 100 dpi.
To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).

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* ZhuHai MYZR Technology CO.,LTD.
* Latest Update: 2018/08/15  
* Supporter: Tang Bin
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