Hello everyone: 1. Problem description: I used AD to draw the PCB and used the "3" button to display the true appearance of the PCB 3D model. However, after exporting the 3D model and opening it in th...
I use Keybd_event in the keyboard driver to simulate the keyboard and send "up, down, left, right" and some other key messages to the operating system. Why is it that when I press the left and right k...
[size=10.5pt][font=宋体][size=4]The selection should be clear, but in some commonly used software, there is no such concept. Once you select a box, all of them can only be put together, and you cannot s...
The following problem occurred when I connected: Error[e46]: Undefined external "__write" referred in ?putchar ( C:\Program Files\IAR Systems\Embedded Workbench 6.0 Evaluation\430\LIB\DLIB\dl430xsfn.r...
Heroes! Please help me. When the button is pressed, the digital tube will flicker. I don't know what's going on. How can I eliminate it? In addition, please point out any deficiencies in the program. ...
The WINCE system runs normally on the X86 machine. The serial port reading and writing program written in EVC is downloaded to the target machine. The createfile can be used to open serial port 3, but...
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
1 Overview
In the field of traditional lighting, the concepts and definitions of lamps and lamps are clear. Lamps and lamps have their own applicable product standards, supporting technical st...[Details]
With the popularity of digital appliances, rechargeable batteries can be seen everywhere in people's daily lives and have become one of the indispensable daily necessities.
This article gives ...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
0 Introduction
PROFIBUS is an open digital communication system with a wide range of applications, which has been included in the international standards IEC 61158 and IEC 61784. Since the gen...[Details]
New Automobile
Hydraulic Clutch
The hydraulic control system uses almost 100% advanced engineering plastics, which overcomes the shortcomings of the main and branch cylinders of metal clutc...[Details]
In the 1980s, breakthroughs were made in the design and production of small, low-power quartz metal halide lamps with precise dimensions. At the same time, with the acceleration of people's lives a...[Details]
An intelligent vehicle is a robot that can automatically drive in an environment according to a pre-set mode, or it can autonomously perform specific operations according to the on-site situation. ...[Details]
In the process of instrument application, there are many types of influencing factors of online gas analyzers and the changes are more complex. It is difficult to effectively control these influenc...[Details]
PCB Design
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