5. LVGL - Light and Versatile Embedded Graphics Library¶

LVGL is a free and open-source library providing an efficient GUI for embedded systems. More information is available on the official site.

5.1. Integration of LVGL in SO3¶

The major work of porting LVGL in SO3 has been done by Nikolaos Garanis in the context of his Bachelor project.

Some details about the porting can be found in our discussion forum.

There is a small video to show LVGL running in the QEMU/vExpress framebuffer emulated environment.

In addition, from LVGL v8, the lv_demo_widgets is now fully supported. And yes, SO3 integrates LVGL v8.

This part will be completed very soon…

Note

First, make sure you compiled the kernel with a configuration which has the framebuffer enabled (for example, vexpress_fb_defconfig)

In order to have a graphical framebuffer in the emulated QEMU/vExpress environment, it is necessary to start the emulator with the stg script:

./stg

QEMU will start a new GUI window used as framebuffer.