Default NAND Flash rootfs is 100MB and part of space is occupied by UBIFS, so it may not be enough. This FAQ would guide you how to extend the rootfs size. Please verify the "maximum logical eraseblock count" in Buildroot menuconfig. The default value is 2800, which corresponds to a maximum rootfs s...

Sometimes you may find that you have modified source code but after compiling and you still got an old image. Those of auto compiling tools are not detect which file you modified, so you need to use some commands to force to recompile. Here, we provide three commands to rebuild the important three p...

The default size of the SD/eMMC rootfs is 100MB, which may be insufficient for certain uses. Nuvoton offers a script to automatically resize the rootfs to its maximum capacity, or alternatively, you can manually resize the rootfs to your desired size. Auto resize rootfs to maximum after booting Buil...

There is an open source test command in U-Boot and you can utilize it to measure USB eye diagram First, you need to enter U-Boot stage and following the below command. Start the USB: $ usb start Common USB commands: - usb start: - usb reset: (re)starts the USB. All USB devices will be initialized an...

For example, if you find that the performance of MA35D0/MA35H0 does not meet your requirements, you can opt for a higher-tier chip, such as the MA35D1. Before changing the chip, remember to check the number of peripherals such as CAN-FD, UART, etc. In the software part, we recommend downloading a ne...

The default size of the root file system depends on the packages you choose to install. If you require an expansion of the root file system to its maximum capacity, options are available through Buildroot's menuconfig or Yocto's recipe configuration Buildroot $ make menuconfig Bootloaders ---> [*] A...

Nuvoton offers a default configuration as you initiate image building. However, there are instances where this might prove insufficient or where you wish to alter the configuration. In such cases, the "make menuconfig" command serves as a tool to make necessary modifications. At times, you might fin...

The booting time of an image created using Buildroot is faster compared to Yocto, primarily because Buildroot employs the busybox system, whereas Yocto utilizes the systemd system. If your goal is to further decrease the booting time, an effective approach is to deactivate the console log, which sig...

If you employ Buildroot for building the MA35D1 Image, you'll notice that attempting to modify the U-Boot environment does not take effect. This is due to the environment being overwritten upon completion of the compilation process. The actual U-Boot environment resides at: /board/nuvoton/ma35d1/ubo...

Platform: MA35D1 Platform resource link: https://www.nuvoton.com/products/microprocessors/arm-cortex-a35-mpus/ma35d1-high-performance-edge-iiot-series/?group=Document&tab=2 BSP link: https://github.com/OpenNuvoton/MPU-Family Download link: https://www.nuvoton.com/export/resource-files/en-us--MA35D1_...