As a high-performance industrial-grade chip, Rockchip RK3568 adopts a quad-core Cortex-A55 architecture and integrates a GPU and an NPU. It is widely used in edge computing and Internet of Things (IoT) devices. Buildroot is a lightweight build tool designed specifically for embedded systems. It can quickly generate a customized Linux root file system through modular configuration. It is particularly suitable for the hardware features of RK3568, significantly improving development efficiency.

Operation method:

1. Switch to the path OK3568-linux-source/buildroot/output/OK3568/ and execute the command ''make menuconfig'';

2. Press the ''/'' key to open the search box and search for relevant library files by keywords. Take adding PYTHON3 as an example;

3. Select options from 1 to 3 according to the search results to jump to the corresponding configuration options. Please use the ''↑'' and ''↓'' keys to turn pages;

Select an option by pressing the ''Y'' key or toggle the selection state by pressing the ''Space'' key.

Choose whether to perform a complete installation according to the needs.

4. Keep selecting ''Exit'' until exit the graphical interface. When prompted to save the configuration, select ''yes'';

5. Recompile Buildroot. Execute the following command in the OK3568-linux-source directory:./build.sh buildroot

6. When prompted whether to overwrite the old.config configuration file, enter ''n''.

7. Rewrite the rootfs.ext2 image generated in OK3568-linux-source/buildroot/output/OK3568/images to the development board. In fact, the rootfs.img generated by a full compilation is created by directly renaming the rootfs.ext2 file. Therefore, using rootfs.ext2 for flashing has the same effect;

8. First, click on the device partition table, then select rootfs.ext2, and click to start the flashing process.

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