Understanding ARM Processor Architecture and Ladder Diagrams

Understanding ARM Processor Architecture and Ladder Diagrams

​ The ARM architecture is one of the most popular processor architectures in the world today, with billions of ARM-based devices shipped each year. There are three architectural configurations: A, R, and M. Typically, a terminal device utilizes multiple ARM processors, and these processors implement different architectural profiles. For example, the following diagram shows what … Read more

Ghost Vulnerability Exposes Domestic Processors: The Future of Chinese Chips

Ghost Vulnerability Exposes Domestic Processors: The Future of Chinese Chips

In 2018, security researchers discovered serious vulnerabilities in Intel’s Sandy Bridge, Ivy Bridge, Haswell, Broadwell, Skylake, Kaby Lake, and Coffee Lake. According to a foreign paper, all Intel CPUs since 1995, except the Itanium which Intel has abandoned, could be affected. This vulnerability is the infamous “Ghost” vulnerability, which could allow malicious scripts to directly … Read more

Overview of ARM v8 Processors: Architecture and Technology

Overview of ARM v8 Processors: Architecture and Technology

​ Overview of ARMv8 Architecture The ARMv8 architecture includes 32-bit and 64-bit execution states, introducing the ability to execute with 64-bit wide registers while providing backward compatibility mechanisms to allow existing ARMv7 software to run. • AArch64: The 64-bit execution state in ARMv8. • AArch32: The 32-bit execution state in ARMv8, which is nearly identical … Read more

How to Distinguish Between Various ARM Cortex Processors?

How to Distinguish Between Various ARM Cortex Processors?

As we all know, the British company ARM is a leader in the world of embedded microprocessors. ARM has always developed its own microprocessor core architectures and then licensed the intellectual property of these architectures to various chip manufacturers. The streamlined CPU architecture, efficient processing capabilities, and successful business model have led ARM to achieve … Read more

Understanding the ARM Cortex Series Processors

Understanding the ARM Cortex Series Processors

Follow and star our public account to access exciting content directly Source: Embedded News Selection Recently, I needed to select cores for chips, so I was learning which cores are suitable and cost-effective. This requires combining various technologies and market analysis, which seems simple but still requires some preparation. Today, I have selected a popular … Read more

Arm’s Ongoing Challenges: CEO Wu Xiongang Refuses to Resign Amidst Tensions with Chinese Companies

Arm's Ongoing Challenges: CEO Wu Xiongang Refuses to Resign Amidst Tensions with Chinese Companies

1. Arm’s Ongoing Challenges? 2. Arm: CEO Wu Xiongang refuses to resign and attempts to prevent Chinese chip companies from communicating with and supporting Arm’s technology; 3. Reuters: U.S. Commerce Department officials join MediaTek’s lobbying efforts; 4. Haige Communications signs a 255 million yuan order contract with special institutional clients, involving Beidou navigation products and … Read more

Understanding the Cortex-A9 U-Boot Startup Code

Understanding the Cortex-A9 U-Boot Startup Code

This article is a record of Teacher Peng’s first live broadcast on Bilibili, where he took notes while streaming. The video has been uploaded to Bilibili. Now it has been organized into this article. If you want to learn about the detailed process of U-Boot startup code, you can enter my Bilibili space to learn … Read more