1. Driver Development: Errors Shadow Us In the field of C++ device driver development, error handling and exception management are like a hidden “shadow” that constantly affects the quality and stability of the driver program. When we eagerly expect the device to run smoothly, but encounter issues like the device not being recognized or data … Read more
Yesterday, a student asked me how to drive the DAC5571. I had a solution written by a teacher on hand, and inspired by it, I wrote a simple module. First, let’s take a look at the DAC5571 manual. It uses SDA and SCL for driving, which is the IIC protocol.The waveforms of SDA and SCL … Read more
It’s common to hear hardware engineers who have been working for a few years complain about their monotonous and uninteresting jobs. They often find themselves repeating various board connections daily, occasionally performing simple debugging without even touching ICs or components like resistors and capacitors. This long-term, tedious, and low-technical work leads many entry-level hardware engineers … Read more
1Introduction Online debugging (OCD, On-Chip Debugging) interfaces provide chip-level control over target devices, serving as a primary means for engineers, researchers, and hackers to extract firmware code or data, modify memory contents, or change device operations. If you are familiar with hardware circuits or embedded systems, you certainly know that JTAG (Joint Test Action Group) … Read more
1. Introduction A friend recently sent me a Hikvision security camera, and today we will take it apart to see what’s inside. 2. Disassembly Step one of disassembly, first observe its shape. PS: Nameplate information Model Power DS-2SCD2612F4 2.8-12mm 12V DC 7.5W MAX / PoE(802.3af) Serial Number Production Date 488915429 11/2014 11 Version V5.2.3_141024 Execution … Read more
1. The Powerful Advantages of C++ in Driver Development 1. The Powerful Advantages of C++ in Driver Development In the field of device driver development, C++ is a “sharp tool.” It combines the features of high-level languages with the ability to approach the hardware layer, providing developers with many conveniences. On one hand, C++ has … Read more
C++ is the “hardcore” force in device driver development 1. C++ Enters Device Driver Development In today’s digital wave, various electronic devices fill our lives, from smartphones and computers to cars and industrial robots, all relying on the silent support of device drivers. C++, as a powerful and widely used programming language, plays a crucial … Read more
Open source hardware solutions can contribute to combating the spread and suffering caused by the novel coronavirus. — Harris Kenny The open source hardware movement has long advocated for the importance of the right to repair, fully owning the technology purchased, and being able to recombine and replicate parts like music. Therefore, during this challenging … Read more
Making your own hardware is easier and cheaper than ever. Here’s what you need to design, build, and test your first board. — John ‘warthog9’ Hawley Article Navigation –How do I get started?28% –Modeling34% –Design40% Making your own hardware is easier and cheaper than ever. Here’s what you need to design, build, and test your … Read more
In response to the diverse packaging needs of users in the hardware industry, Rongyu Intelligent has developed a series of products such as the efficient exhaust valve smart box packing machine, creating an intelligent packaging production line to enhance overall production efficiency. The exhaust valve smart box packing machine can efficiently and accurately package exhaust … Read more