The whole graphics library project consists of a few repostories:

• lvgl the graphics library itself
• lv_examples tutorials and example GUI applications
• lv_boards ready to use project on various development boards and microcontrollers
• lv_drivers drivers for common touch pad and display controllers
• lv_utils image and font converter utilities
• pc_simulator a cross platform simulator project to run LittlevGL on PC

一、PC端模拟器开发环境搭建

官方教程： https://littlevgl.com/pc-simulator

软件下载地址：

1.Eclipse CDT

eclipse-cpp-oxygen-R-win32-x86_64.zip

http://www.eclipse.org/cdt/downloads.php

2.SDL2

SDL2-devel-2.0.7-mingw.tar.gz

https://www.libsdl.org/download-2.0.php

3.MinGW-w64

x86_64-7.2.0-release-win32-sjlj-rt_v5-rev0.7z

https://sourceforge.net/projects/mingw-w64/files/?source=navbar

1、Install Eclipse CDT

Eclipse CDT is C/C++ IDE. You can use other IDEs as well but in this tutorial the configuration for Eclipse CDT is shown.

Eclipse is a Java based software therefore be sure  Jave Runtime Environment  is installed on your system. 

On linux:  sudo apt-get install default-jre

You can download Eclipse's CDT from:  https://eclipse.org/cdt/ . Start the nstaller and choose *Eclipse CDT* from the list

2、Install MinGW

官方MinGW很难下载，选择MinGW-w64替代。解压到某个目录，并且添加环境变量D:\mingw64\bin，打开CMD，输入gcc -v测试是否添加成功。重命名mingw64\bin下的mingw32-make.exe为make.exe

3、Install SDL 2

1）Download the development libraries of SDL. 

Go to  https://www.libsdl.org/download-2.0.php  and download  Development Libraries: SDL2-devel-2.0.5-mingw.tar.gz

2）Uncompress the file and go to  x86_64-w64-mingw32  directory (for 64 bit MinGW) or to  i686-w64-mingw32  (for 32 bit MinGW)

3）Copy  x86_64-w64-mingw32/include/SDL2  folder to  D:\mingw64\x86_64-w64-mingw32/include

4）Copy  x86_64-w64-mingw32/lib/  content to  D:\mingw64\x86_64-w64-mingw32\lib

5）Copy  x86_64-w64-mingw32/bin/SDL2.dll  to  {eclipse_worksapce}/pc_simulator/Debug/ . Do it later when Eclipse is installed.

4、Import pre-configed project to Eclipse

  File->Import and choose  General->Existing project into Workspace. 

注：这里导入后，需要对工程的properties做一些修改，否则会出现

undefined reference to `WinMain@16'错误

5、Compile and Run

编译前需要修改main.c里的int main(void)为int main(int argc, char *argv[])，否则报声明和定义不符的错误

 

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