# RX Family (/integration/chip_vendors/renesas/rx_family)





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Supported boards in the RX Family:

* **RX72N Envision Kit**

Run the Project [#run-the-project]

* The official IDE of Renesas is called e² studio. Because it's Eclipse-based,
  it runs on Windows, Linux, and Mac as well.  It can be downloaded
  [here](https://www.renesas.com/us/en/software-tool/e-studio).
* Download and install the required driver for the debugger

  * for Windows: [64 bit here](https://www.renesas.com/us/en/document/uid/usb-driver-renesas-mcu-tools-v27700-64-bit-version-windows-os?r=488806)
    and [32 bit here](https://www.renesas.com/us/en/document/uid/usb-driver-renesas-mcu-toolse2e2-liteie850ie850apg-fp5-v27700for-32-bit-version-windows-os?r=488806)
  * for Linux: [here](https://www.renesas.com/us/en/document/swo/e2-emulator-e2-emulator-lite-linux-driver?r=488806)
* RX72 requires an external compiler for the RXv3 core. A free and open-source version is available
  [here](https://llvm-gcc-renesas.com/rx-download-toolchains/) after registration.

  The compiler must be activated in e² studio:

  * Go to go to `Help` -> `Add Renesas Toolchains`
  * Press the `Add...` button
  * Select the installation folder of the toolchain

  .. image:: /\_static/images/renesas/toolchains.png
  :alt: Toolchains
* Clone the ready-to-use [lv\_port\_renesas\_rx72n-envision-kit](https://github.com/lvgl/lv_port_renesas_rx72n-envision-kit.git) repository:

  .. code-block:: shell

  git clone [https://github.com/lvgl/lv\_port\_renesas\_rx72n-envision-kit.git](https://github.com/lvgl/lv_port_renesas_rx72n-envision-kit.git) --recurse-submodules

Downloading the `.zip` from GitHub doesn't work as it doesn't download the submodules.

* Open e² studio, go to `File` -> `Import project` and select `General` / `Existing projects into workspace`
* Select the cloned folder and press `Finish`.
* Double-click on `RX72N_EnVision_LVGL.scfg` to activate the `Configuration Window`.

  Renesas' Smart Configurator (SMC) includes BSP and HAL layer support extended with
  multiple RTOS variants and other middleware stacks.  The components will be
  available via code generation, including the entry point of the application.

  Press `Generate Code` in the top right corner.

  .. image:: /\_static/images/renesas/generate\_smc.png
  :alt: Code generation with SMC
* Build the project by pressing `Ctrl` + `Alt` + `B`
* Click the Debug button (<img alt="img_debug_btn" src="__img0" />). If prompted with `Debug Configurations`, on the `Debugger` tab select the `E2 Lite`
  as `Debug hardware` and `R5F572NN` as `Target Device`:

  .. image:: /\_static/images/renesas/debug\_rx72.png
  :alt: Debugger parameters for RX72

<Callout type="info">
  Make sure that both channels of `SW1` DIP switch (next to `ECN1`) are OFF.
</Callout>

Modify the project [#modify-the-project]

Open a demo [#open-a-demo]

The entry point of the main task is contained in `src/LVGL_thread_entry.c`.

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

Configuration [#configuration]

`src/lv_conf.h` contains the most important settings for LVGL. Namely:

* <ApiLink name="LV_COLOR_DEPTH" /> to set LVGL's default color depth
* <ApiLink name="LV_MEM_SIZE" /> to set the maximum RAM available to LVGL
* <ApiLink name="LV_USE_DAVE2D" /> to enable the GPU

Hardware and software components can be modified in a visual way using the
`Configuration Window`.

Support [#support]

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