Our platform is 2440, wince5.0, when tested on a virtual machine, there is no problem playing wmv files, but when it is played on the board with ceplayer, it is very stuck, but it is acceptable to pla...
It is reported that in the current economic downturn, it is the [url=http://www.eepw.com.cn/news/listbylabel/label/智能手机][size=2][color=#000000]smartphones[/color][/size][/url] that have driven the gro...
I designed two power supplies on my board, one provides 3.3V/850mA to power the MSP430 microcontroller, and the other provides 4V/3A to power the GPRS module. My teacher suggested that I add ferrite b...
I am using the TM4C129ENCPDT chip. When I need to use the serial port DMA to send, why does the program freeze when we enable the serial port DMA sending function and the serial port sending interrupt...
With the continuous expansion of the application scope of embedded systems and the increasing popularity of network applications, more and more embedded systems need to support network functions. TCP/...
Effect of shear stress on iron loss of grain-oriented silicon steel sheets Effect of scissional stress on loss of grain-oriented silicon steel sheetAs we all know, grain-oriented silicon steel sheets ...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[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]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[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. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[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]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[Details]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[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]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[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]