Getting Started with Embedded Linux Systems Using Buildroot – Part 3

This series will create my first runnable embedded Linux system based on the Buildroot repository provided by Microchip.

AT91Bootstrap Operation Tutorial

Modify AT91Bootstrap Specific Configuration

Operation command:

make at91bootstrap3-menuconfig

Detailed interface of AT91Bootstrap:

If running bare-metal or RTOS on Microchip MPU, you can modify the filename of u-boot.bin in the above image to match the name of the bare-metal program to be loaded, allowing AT91Bootstrap to load user-defined applications.

Recompile AT91Bootstrap

Operation command:

make at91bootstrap3-rebuild

U-Boot Operation Tutorial

Modify U-Boot Specific Configuration

Operation command:

make uboot-menuconfig

Detailed interface of U-Boot:

Recompile U-Boot

Operation command:

make uboot-rebuild

Linux Kernel Operation Tutorial

Modify Linux Kernel Specific Configuration

Operation command:

make linux-menuconfig

Detailed interface of Linux Kernel:

Recompile Linux Kernel

Operation command:

make linux-rebuild

Advanced Buildroot Operations

Generate Graphical Software Module Dependency

Operation command:

make graph-depends

If the above error occurs, you can do the following:

After installing the required software packages, re-execute the above command, and you can find files like graph-depends.pdf in the buildroot-mchp-linux4microchip-2024.10/output/graphs directory:

View Specific Software Module Dependencies

View Linux Kernel Module Dependencies Operation Command:

make linux-graph-depends

In the buildroot-mchp-linux4microchip-2024.10/output/graphs directory, you can find the linux-graph-depends.pdf file:

View QT5Base Module Dependency Operation Command:

make qt5base-graph-depends

View Microchip EGT GUI Development Software Dependency Operation Command:

make egt-graph-depends

More Buildroot Operation Commands:

Refer to the Buildroot official user manual