Why U-Boot is Needed1.1. Main Components of Computer Systems(1) A computer system is a system centered around the CPU. Typical computer systems include: PCs (desktop + laptop), embedded devices (smartphones, tablets, game consoles), and microcontrollers (home appliances like rice cookers, air conditioners).(2) There are many components that make up computer systems, and different computer systems … Read more
Word Count: 1200 Practical Index: ⭐⭐⭐⭐⭐ Introduction: Due to the special nature of the embedded development environment (cross-compilation), we will use some other peripheral tools. Here is a brief description, along with a reintroduction of the various tools used in the entire development environment and a simple application development process. 01 SecureCRT SecureCRT is a … Read more
Today, a customer visited us. Their company used S3C2440 to create a product and encountered some issues: 1. Sometimes the program can be burned to NOR Flash using H-JTAG, and sometimes it cannot; when it fails to burn, H-JTAG shows an error message “Unable to load driver”. 2. When it is lucky enough to burn … Read more
1. Compiling U-Boot First, let’s review how to compile U-Boot. (1) Set temporary environment variables export ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- (2) Specify board configuration and generate .config file make xxx_defconfig (3) Compile make -j8 (4) Clean build make distclean Next, we will analyze the top-level Makefile in the U-Boot root directory to explore what happens behind these … Read more
This series will create my first runnable embedded Linux system based on the Buildroot repository provided by Microchip. Change Buildroot configuration based on target hardware This series of articles will demonstrate using the Microchip SAMA5D2-XULT development board. This chapter explains based on the buildroot-external-microchip-linux4microchip-2024.10/configs/sama5d2_xplained_headless_defconfig configuration file: Preparation – SAMA5D2 MPU Linux Boot Process Power on … Read more
Click the blue text above to follow Weilian Zhikong You can click the … in the upper right corner to share this article What is Yocto? In brief, it is a tool used to build U-Boot, kernel, file system, cross-compilation toolchain, etc. Yocto provides a complete and comprehensive embedded Linux porting solution. It allows embedded … Read more
Many development boards use NOR Flash such as AM29LV800 or AM29LV160, and can operate normally with the u-boot provided by this website; yesterday, a user discovered that they could not erase SST39VF1601, for example, the following phenomenon occurred: when attempting to erase a sector starting at 0x2000, it showed success, but reading the contents revealed … Read more
To gain a deeper understanding of the Linux implementation of the RISC-V 64 architecture, we have specially adapted the Buildroot 2021 open-source build tool, making it easier for everyone to delve into various parts of the Neza D1, such as the boot process, OpenSBI, U-Boot, kernel, root filesystem, etc. Using Buildroot to compile the build … Read more
Instructor Introduction Wei Dongshan | Graduated from University of Science and Technology of China, with dual degrees in Electronics and Computer Science. 2005-2007 Worked at ZTE Corporation in embedded Linux development, achieving S-level performance. 2008 Published “Complete Handbook of Embedded Linux Application Development”, which has been a bestseller in the embedded field. 2008-2011 Served as … Read more
Click the top“100 Questions Technology”, select the pinned public account Embedded insights delivered promptly —— On the last day of 2018, it’s a great time to summarize the wonderful articles from this public account; looking back at 2018, the number of high-quality articles has increased compared to the previous two years. The happiest moment is … Read more