Click the above PC Enthusiasts to follow us The “heart” of PCs (including desktops, laptops, all-in-ones, and 2-in-1 devices) and mobile devices (smartphones, tablets running Android and iOS) is a chip, but they have fundamentally different characteristics, leading to divergent development paths for these two types of computing devices. This image is for reference only; … Read more
Instruction sets can be divided into Complex Instruction Set Computing (CISC) and Reduced Instruction Set Computing (RISC), represented by the architectures x86, ARM, and MIPS. ARM RISC is a chip architecture designed to improve processor speed, with key technology in pipelining, which allows multiple instructions to be completed in one clock cycle. Compared to Complex … Read more
The MCS-51, or 51 microcontroller, is a classic embedded system development platform known for its flexibility, reliability, and ease of use, making it a favorite among embedded engineers. This article will focus on the core features of the 51 microcontroller, development tools, and environments, hoping to assist engineers. 1. Core Features of the 51 Microcontroller … Read more
When it comes to processor architectures, the most well-known globally are ARM, X86, and PowerPC. As a result, many people often compare them, yet there are still many who are unclear about their differences. Below, we will compare them from multiple aspects to help you understand the differences between ARM, X86, and PowerPC at once! … Read more
With little knowledge of hardware, let’s learn from Master Yang’s article “Do You Understand ARM CPU Architecture?!”. Introduction Recently, there was a requirement to install MySQL 8.0 on an ARM architecture; I’ve heard of ARM CPUs, but have never deployed them in practice; and what exactly is this ARM CPU architecture? I only have a … Read more
The camera of the Xiaomi 11 Pro/Ultra smartphone uses the CIS (CMOS Image Sensor) model Samsung ISOCELL GN2 (hereinafter referred to as GN2). The strength of this CIS lies not in the pixel count, but in its overall size of 1/1.12 inches. Although this phone was released some time ago, the GN2 may still be … Read more
1. Address Space 1.1 Accessing Registers in ARM How do you access registers in ARM? Just like accessing memory: how to access a register? Use a pointer: int a; unsigned int *p = &a; // p equals "address of a" *p = val; // Writing to this address means writing to a val = *p; … Read more
Source: Chip Theory Abstract: Previous articles have mentioned that there are many classification methods for chips, with varieties as numerous as the stars in the night sky, making it impossible to enumerate them all. This article narrows the focus to high-end general-purpose chips, specifically CPUs. We will find that there are also many types of … Read more
1 Background Introduction Bluetooth Low Energy Audio (Bluetooth LE Audio, hereinafter referred to as: LE Audio) represents the functional trend of the next generation of smart audio devices. The LE Audio technology is based on the transmission characteristics of the Connected Isochronous Stream (CIS) introduced in Bluetooth Core Specification version 5.2. CIS establishes a fixed … Read more
CIS: The Soul and Value Core of CMOS Camera Modules, Domestic Substitution Enters Deep Waters. Functionally, CIS is currently the most mainstream image sensor that can capture photons and convert them into electrical signals, serving as the core component for imaging in CMOS camera modules; in terms of value, CIS accounts for approximately 52% of … Read more