Generally, the order of a four-layer board is: signal layer - ground layer - power layer - signal layer;
In order to ensure the minimum loop path, the stratum needs to remain a complete piece;
So, doe...
404724[/attach][/url][/align] [font=微软雅黑][size=3][align=center][color=#0000ff][b]March 20-22, 2019[/b][/color][/align] [align=center][color=#0000ff][b]E5 Hall 5543 · Shanghai New International Expo Ce...
Around 2005, I was able to use VS2003 to connect to SQL Server 2000 directly. But now when I use VS2005, I can't connect anymore? I don't know what the reason is? //Open the connection public bool SQL...
[size=3]:victory:See you across the year~Here is the wonderful review post of the New Year's Eve week~~I wish you all good luck in the new year~~Okay~Let's quickly take a look at what wonderful posts ...
Compiling under Wince requires a makefile to organize the process, but when I searched for the makefile under BSP, I found only a few lines of description. Where is the real makefile? Can anyone tell ...
I would like to ask the moderator, my board is working fine with the STR710 chip with the program soldered on it, but JTAG cannot enter the DEBUG state. The software uses H-JTAG. Where should I look f...
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
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 Guangzho...[Details]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
The ARINC429 bus is one of the most commonly used communication buses between various subsystems of avionics. As the "skeleton" of modern avionics systems, once the bus system or the attached airbo...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
1 Battery technology determines the fate of energy vehicles
Regardless of whether new energy vehicles are hybrid or pure electric vehicles, they cannot do without the core technology of batter...[Details]
IntroductionLED
billboards are a kind of information display terminal for the public, which has a wide range of civil and commercial values. However, the information displayed on most LED bil...[Details]