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_...

1. Enable related Qt and DirectFB package # make menuconfig Target packages ---> Graphic libraries and applications (graphic/text) ---> [*] Qt5 ---> -*- qt5base [*] Compile and install examples (with code) -*- gui module [*] widgets module [*] linuxfb support [*] directfb support (linuxfb) Default g...

1. Add I2C device tree description to U-Boot dts The following description is using i2c1 and PB10, PB11 Path: /home/user/shared/yocto/build/tmp-glibc/work/numaker_som_ma35d16a81-poky-linux/u-boot-ma35d1/2020.07-r0/git/arch/arm/dts/ma35d1-sdcard0.dts &i2c1 { status = "okay"; }; &pinctrl { i2c1 { pinc...

Follow the steps below to disable the log output from U-Boot and TF-A. 1. Open the necessary U-Boot configurations by running the following command Path: /home/user/shared/yocto/build/tmp-glibc/work/numaker_som_ma35d16a81-poky-linux/u-boot-ma35d1/2020.07-r0/build/ma35d1_sdcard0_defconfig # make menu...

Running certain applications may result in a large amount of cache and logs being stored in the /run/log/journal and /var/run/journal directories, which can consume a significant amount of disk space and potentially cause system errors. To address this issue, you can limit the size of the systemd lo...

If you're working with an MA35D1 and you want to use an external DDR, you may find that the BSP only includes a limited set of DDR parameters. To address this issue, you can replace the existing "custom_ddr.h" header file with a new one that contains the necessary information. To do this, you can co...

When creating a MA35D1 image with Buildroot, it's possible that the touch function will not work properly. To resolve this issue, you can add an initialization script to run after the device boots up. #!/bin/sh export QT_QPA_FB_TSLIB="1" export QT_QPA_FONTDIR="/usr/share/fonts/truetype" export QT_QP...

The default configuration of an Image built by Buildroot is minimalistic, which means you need to manually enable the libraries you need to use. If you want to use Qt5-related libraries, you can follow the steps below to build them. There are many options that can be enabled or disabled. You should ...