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1. Overview
In its early development, UPS was only regarded as a backup power supply. Later, due to power grid quality problems such as voltage surge, voltage spike, voltage transient, voltage dro...[Details]
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Among traditional circuit protection devices, fuses are one of the most commonly used means and can be traced back to the second half of the 19th century. It is still used today because of its advant...[Details]
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In recent years, with the emergence of white light LED, especially high-power white light LED, LED as a new type of green lighting
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has the characteristics of small size, high mec...[Details]
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Recently, new energy vehicle companies have successively announced production and sales in July. According to incomplete statistics from the Gaogong Lithium Battery Industry Research Institute (GGI...[Details]
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IAR Compiler Configuration (AVR) 1. EEPROM area data storage: __eeprom unsigned char a; //Define a variable and store it in the EEPROM space __eeprom unsigned char a @ 0x8; //Define a variable and st...[Details]
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introduction With the development of industry and science and technology, users have higher and higher requirements for power quality. All raw power, including city power, may not meet the requireme...[Details]
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During the 818 summer shopping season, Smartisan Mall offers a discount of up to 700 yuan for mobile phone purchases, and benefits such as 12 interest-free installments. The original price of ...[Details]
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How to use the resistance range of a multimeter to measure whether a circuit is grounded? First, no matter what line or device is measured, the voltage must be measured first to ensure that it is s...[Details]
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The GPRS communication method currently promoted by China Mobile is an emerging data transmission technology that will fundamentally solve the drawbacks of traditional transmission methods and be mo...[Details]
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On March 26, the Xiongan New Area Energy Internet Standardization Pilot Project was officially launched. The pilot project will aim to build a "Chinese brand" in the field of international standard...[Details]
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The method of measuring time and voltage amplitude with an oscilloscope is basically the same, except that when measuring time, the reading between the two measured points is along the X-axis directi...[Details]
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This document describes how to modify the user area size of the iTOP-4418 development board. The partition data in the document is for 16G eMMC. uboot settings Enter the uboot of iTOP-4418, as shown...[Details]
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According to foreign media reports, the University of Twente in the Netherlands has developed a new optical amplifier that can not only enhance the light signals on photonic chips, but also improve t...[Details]
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1 Introduction
Many people believe that with the popularity of computers, information can be stored in electronic media, thus reducing the amount of paper used. However, due to the conve...[Details]
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Usage Environment
PC: Centos5.4
kernel: 3.0.1
corss: arm-linux-gcc 4.4.1
arm: s3c6410
...[Details]