Digital signal processing is a very fundamental discipline, but its importance to communication majors is self-evident To better assist teachers and students in learning this course, The Arm UK education team has developed this English textbook for a joyful learning experience~ “Digital Signal Processing: Theory and Practice Based on Arm Cortex-M Microcontrollers” “Digital Signal Processing: … Read more
Article Word Count: 8000 Content Index: ⭐⭐⭐⭐⭐ Many beginners, and even some seasoned professionals who have been in the field for years, often complain about the intense competition in the electronics industry. Feeling dejected only stifles one’s passion; without passion, working in electronics is just a waste of life. Is the competition really that fierce? … Read more
Abstract: The cross-development environment is the foundation of embedded Linux development. The subsequent development process is almost entirely based on this environment. ARM, as a high-performance, low-cost embedded RISC microprocessor, has become the most widely used embedded processor. This article includes the hardware structure of the 32-bit ARM920T core “GEC2410” development board and the concept … Read more
The development of computing over the past 30 years can be roughly divided into three stages: in 1995, Microsoft Windows opened the PC era dominated by x86 architecture CPUs; in 2007, Apple’s iPhone ushered in the smartphone era led by Arm architecture; and in 2012, the success of the convolutional neural network AlexNet based on … Read more
Click the blue "Arm Selection" in the top left corner and select "Set as Favorite" 1. Interrupt Response Model of 51 Microcontroller Let’s recall the use of interrupts in microcontrollers. As shown in the figure below, on the left is the pin diagram of the 51 microcontroller, where P3.0-P3.5 are the corresponding interrupt pins. When … Read more
Many people, especially beginners, are interested in embedded systems and want to learn about embedded technology, but they often feel confused and frustrated. Therefore, I think it is necessary to take some time to write something to “enlighten the masses.” Of course, I am not a Buddha, and using the term “enlighten the masses” may … Read more
As a core component of embedded systems, the presence of the ARM processor ensures the stability and performance of the system. To better ensure the normal operation of embedded systems, the ARM processor provides seven operating modes, each with its specific application scenarios and privilege levels. 1. User Mode (USR) Normal program execution mode. Cannot … Read more
First, the term ’embedded’ is a concept without a precise definition, as each book offers its interpretation. However, the main idea is the same: compared to general systems like PCs, embedded systems are specialized systems with a streamlined structure, retaining only the necessary hardware and software while discarding the unnecessary parts. Therefore, embedded systems generally … Read more
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 The father of the mechanical computer, a British nobleman, who built the first difference engine single-handedly, achieving a calculation precision of 6 decimal places. Later, he designed … Read more
Click to View System Description Title: “Arduino Password Lock Design” Functions: Can set a password, unlock successfully Five incorrect password inputs trigger an alarm (buzzer) LCD display (1602) RFID-RC522 radio frequency module (swipe card to unlock) Modules Used: Relay Infrared Remote Control (replaces matrix keyboard) RFID-RC522 radio frequency module LCD1602 (I2C) Module Physical Diagram Wiring … Read more