Understanding ARM CPU Architecture and SoC Design

1. Computer Architecture

Before understanding computer architecture, let’s first get to know a few key figures who made significant contributions to the invention of computers.

1. Charles Babbage

Known as the father of the mechanical computer, Babbage was a British nobleman who created the first difference engine, achieving a calculation precision of 6 decimal places. He later designed a 20-digit precision difference engine, reaching the pinnacle of mechanical design.

From 1985 to 1991, the London Science

2025-01-09

Exciting Projects Based on ESP32

Many people dream of being accepted into Hogwarts and hope to experience the Sorting Hat firsthand. Now, engineer Mark Donners from The Electronic Engineer has made this dream a reality using a 32-bit MCU, sparking discussions among engineers on EEworld. (If you have any other thoughts to discuss with the engineer, you can move to the original post on EEWorld for discussion: http://bbs.eeworld.com.cn/thread-1257134-1-1.html)

Compiled by Fu Bin

Produced by Electronic Engineering World (ID: EEworldbbs)

Cyber

2025-01-09

Understanding Arm Architecture and Its Cores

Arm architecture has dominated the embedded processing and computing market today, but it has come a long way over the past few decades.Starting in the 1980s, it was initially used as a home computer processor, then in the 1990s it became the foundation for mobile phone chips.Today, Arm is a strong competitor in almost every technology niche.Many believe that the Arm architecture has become the preferred choice for 32-bit or 64-bit processors.Due to this widespread application, there are now thousands

2025-01-09

Getting Started with SDR: ADI ADALM-Pluto for Communication Studies

Today, I would like to introduce a very suitable tool for students learning communication technology.
SDR Active Learning Module
Software Defined Radio Active Learning Module
This device is called
ADALM-Pluto
SDR Software Defined Radio Starter Kit
ADALM Pluto SDR is a software-defined radio product based on ADI's AD9363.
Since it is an SDR radio, its most important performance is the frequency bands it supports. The default frequency range is from 325MHz to 3800MHz, supporting a channel bandwidth

2025-01-09

How to Track Nearby Airplanes: Installing and Configuring Flightradar24 on Raspberry Pi

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In a previous article, we introduced the ADS-B tracker, which utilizes FlightAware software. Everyone has their preferences, and you might prefer using Flightradar24.
Running your own aircraft tracker can provide you with a free Flightradar24 business account, making it a perfect solution if you enjoy tracking flights from

2025-01-09

Choosing the Right Software Framework for Embedded Design

Source | Yu Linjun
When writing low-level code, the initial framework design always faces choices. Depending on the actual hardware usage environment, there are many options for software frameworks. Today, I will briefly describe some commonly used architectures to help everyone understand and choose the appropriate architecture.
Overview
1. Simple Sequential Execution Program: This method is used by most people. There is no need to think about the specific architecture of the program; just

2025-01-09

Revolutionizing VR Display Resolution: The 2117 PPI 4K LCD Screen

Abstract
This work showcases the breakthrough achieved with the 2117 pixels per inch (PPI) Liquid Crystal Display (LCD) in developing high-resolution Virtual Reality (VR) displays. This technology significantly enhances the dynamic range and reduces the screen door effect of VR displays. The paper discusses the challenges and potential solutions in achieving LCDs with over 2000 PPI, including pixel aperture ratio design, LC efficiency improvements, and overall transmittance. Additionally, it proposes

2025-01-09

Creating a Mini Desktop Aquatic Habitat

Keeping ornamental fish, playing with natural water landscapes, and understanding life is something that many people care about. Welcome to the aquarium community!
The aquarium community rarely recommends products, but today I will introduce a good e-commerce channel, a vertical e-commerce platform in the aquarium industry. Scan the QR code in the image below to enter, where you can choose from various aquarium products at low prices and high quality, ensuring your satisfaction.
For reliable aquarium products, visit Reliable Fish! Choose from

2025-01-09

Testing STM32 Hardware I2C Functionality

There has been a rumor circulating: The hardware I2C design of STM32 has a bug, and it is better not to use it; using software I2C is more reliable.
For a long time, to avoid unnecessary trouble, I have not used hardware I2C, mainly because software I2C is also quite convenient, and can be used on almost any port.
Recently, I designed a board that happened to use I2C, so I decided to test whether the

2025-01-09

VxWorks 7 Training Video: kprintf() Debugging Function

To download the demonstration document from the video, please click "Read the original text"
The kprintf() user interface is a lightweight logging mechanism that is very helpful for debugging startup issues on the target machine. You will see how to enable this feature and the problems you may encounter when debugging during the VxWorks startup process using this tool. Although kprintf() is usually output to a serial device, it can also redirect output

2025-01-09

Category: Technical Articles

1. Computer Architecture

1. Charles Babbage

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