I just bought a test board with two STC89C51RCs. I wrote several examples from the CD into it, and they all worked. But after I wrote one and burned it in, all the pins in the microcontroller changed ...
1. The composition of PLCFrom the structural point of view, PLC is divided into two types: fixed type and combined type (modular type). Fixed PLC includes CPU board, I/O board, display panel, memory b...
Dear experts, I customized an operating system on Samsung's Arm9-2410EP platform, and it can run and download normally. I exported a corresponding SDK. I installed this SDK on my computer and deleted ...
When I was using STVD, I wrote a very efficient program, but there was a subroutine that could not jump out. I stepped through it and found thatthe first for in the figure below could not jump out. Th...
[i=s]This post was last edited by 247153481 on 2015-10-21 09:29[/i] [media=swf,500,375]http://player.youku.com/player.php/sid/XMTM2NTE4NTU2MA==/v.swf[/media] The video is as above. There is no tft dri...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
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]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[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]
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]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[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]
HL201A is a special thick film driver integrated circuit with a capacity of less than 75AGTR developed by Xi'an Power Electronics Technology Research Institute. The article explains the pin arrange...[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]
introduction
Belt drive is a common transmission device used in industrial production. Its commonly used speed detection device is a photoelectric encoder installed at the rotating end of th...[Details]
0 Introduction
Pneumatic
artificial muscle,
also known as pneumatic muscle actuator (PMA), began to be studied in the 1950s. In recent years, it has been widely studied and applied ...[Details]
Embedded System
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