RZ/G Family¶

Supported boards in the RZ/G Family:

RZ/G2L-EVKIT
RZ/G2UL-EVKIT
RZ/G3E-EVKIT

G2L and G2UL¶

Run the Project¶

The RZ/G2L and RZ/G2UL are MPUs with support for running Linux. Projects are built for them using a cross-compiler CLI toolchain SDK in a Linux PC environment (WSL, Docker, etc. can be used on Windows).
The G2L has a Wayland desktop and the project appears as a Wayland window. The G2UL does not have a desktop so the project is fullscreen and uses the fbdev driver.
The SDK currently uses LVGL v8.3 so this project uses this version to mirror the SDK version, even though LVGL is statically linked. You may try using newer versions of LVGL. See the v8-to-v9 Migration Guide for things you will need to address.
Clone the ready-to-use repository for your selected board:
```
git clone https://github.com/lvgl/lv_port_renesas_rz-g2l-evkit --recurse-submodules
```
Downloading the .zip from GitHub doesn't work as it doesn't download the submodules.
Follow the instructions in the project README.md to obtain the SD Card image and toolchain installer, build, and upload the project to the board.
Stop any automatically started demos (on G2UL run systemctl stop demo-launcher in the terminal).
Run the project:
```
./lvgl_demo_benchmark
```

Modify the project¶

Open a demo¶

The entry point is contained in src/main.c.

You can disable the LVGL demos (lv_demo_benchmark()) (or just comment them out) and call some lv_example_...() functions, or add your own custom code.

Configuration¶

Edit lv_conf.h and lv_drv_conf.h to configure LVGL. The board image contains LVGL and lv_drivers as dynamically linkable libraries. This project builds LVGL statically for customizability and to port the LVGL v9 benchmark from LVGL v8.3.

G3E¶

Run the Project¶

The RZ/G3E is a high-performance quad-core MPU. Projects are built for it using an SDK that was generated with Yocto. You can customize a Yocto image+SDK or use the pre-built ones. The SDK is intended for a Linux PC environment (WSL, Docker, etc. can be used on Windows).
The G3E has a Wayland desktop but it should be stopped with systemctl stop weston before running the default project since it runs in fullscreen using the OpenGL EGL+DRM driver.
LVGL is not included in the SDK so you should build whichever version you need. Later versions of LVGL include the optimal OpenGL driver.
Clone the ready-to-use repository:
```
git clone https://github.com/lvgl/lv_port_renesas_rz-g3e-evkit --recurse-submodules
```
Downloading the .zip from GitHub doesn't work as it doesn't download the submodules.
Follow the instructions in the project README.md to flash the board bootloader and obtain the Yocto SD Card image and SDK (pre-built or custom-built), build, and upload the project to the board.
Stop the Wayland desktop if using the OpenGL, DRM, or fbdev drivers. Run systemctl stop weston in the terminal.
Run the project:
```
./lvglsim
```

Modify the project¶

Open a demo¶

The entry point is contained in lv_port_linux/src/main.c.

You can disable the LVGL demos (lv_demo_benchmark()) (or just comment them out) and call some lv_example_...() functions, or add your own custom code.

Configuration¶

Edit lv_conf.h to configure LVGL. You can edit lv_conf.defaults — a sparse version of lv_conf.h which you can use to regenerate lv_conf.h by running

python3 lv_port_linux/lvgl/scripts/generate_lv_conf.py

Support¶

In case of any problems or questions open an issue in the corresponding repository.