In the manufacturing of printed circuit boards (PCBs), the PCB assembly technology has emerged to improve production efficiency, reduce costs, and optimize material utilization. Below, we will briefly introduce three common methods of PCB assembly, hoping to be helpful to everyone. Generally speaking, PCB assembly refers to the practice of circuit board manufacturers connecting smaller … Read more
This article is reprinted from the Extreme Community Extreme Column: Agile MM32 MCU Author:Nuoeriris The Arm processor is designed based on the principles of Reduced Instruction Set Computing (RISC). The instruction set and associated decoding mechanisms are relatively simple, featuring a 32-bit Arm instruction set and a 16-bit Thumb instruction set. The Arm instruction set … Read more
For those familiar with computers, the BIOS (that blue interface) may not be too strange, as it is the startup code for the computer. Without BIOS, a computer is destined to be a brick! The BIOS mainly does some preparatory work before booting, such as setting the system time and boot order… but I digress. … Read more
I. Embedded 1 Form Analysis Embedded refers to a joining method where a block on one component slides into a groove of another component. The blocks are typically in a “7” shape, with the initial groove being the first groove and the groove where it slides in being the second groove. The width of the … Read more
For embedded developers, understanding assembly language and core registers is the foundation for a deeper understanding of the kernel. I never expected there would be so much content when I started writing, and I hope to convey many valuable insights. I would like to especially thank Teacher Wei Dongshan for his videos, which are absolutely … 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
Case Study Share Optical Detector of SEM for Z-axis Height Measurement Above Semiconductor Wafer No.1 01 Problem to be Solved in This Case 1 A semiconductor OEM (Original Equipment Manufacturer) manufacturer wants to add a new feature to their existing SEM (Scanning Electron Microscope) system to enhance productivity. They need a fast and reliable method … Read more
Click to Follow ▲ Aiqi SEM Knowledge | Experience | Information | Resources Four Major Sections From SEM to Integrated Internet Marketing Author: Wang Wei, Aiqi Academy Special Expert Senior Marketing Consultant at Baidu, Corporate Training Lecturer, Instructor at Tencent Classroom Original submission, unauthorized reproduction prohibited Submissions can be sent to: [email protected] All along, when … Read more
Debugging C programs used to confuse me. However, when I was writing my operating system, I had many bugs to debug. I was fortunate to use the QEMU emulator, which allowed me to attach a debugger to my operating system. This debugger is gdb. — Julia Evans This article navigation ◈ 1. Set Breakpoints13% ◈ … Read more
Click on the “Zero One Vision” above and select the “Star” public account Resource-rich content delivered promptly Assembly language still forces programmers to think about which registers and memory addresses to use. If you suddenly need an extra number, you might need to change a lot of code. Let’s think about that. 1. Patching “Bugs” … Read more