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Everyone knows that if a Linux application wants to access the kernel, it must use a system call to switch from usr mode to svc mode. Let's take a look at its implementation process.
System ca...[Details]
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Programmable gain amplifier circuit
In order to change the gain of the amplifier, there are generally two ways: one is to change the input resistance of the inverting end, and the other is to ch...[Details]
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1. Vision Intelligence was successfully selected into the 2023 Qinchuangyuan "Scientist + Engineer" team
Recently, the Shaanxi Provincial Department of Science and Technology announced the...[Details]
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昨天,OPPO在上海发布Reno系列第二款产品,但Reno2并没有5G版本。在媒体采访环节,沈义人回答了这个问题。 沈义人表示,OPPO作为终端厂商希望和运营商的伙伴并行,在最恰当的时候推出最恰当的产品。OPPO在5G方面的积累,在以终端为主营业务的厂商当中,应该是实力最强,现在是箭在弦上,OPPO就等着最合适的发令枪。 沈义人还透露,未来头部研发的竞争更多是研发实力的比拼和技术壁垒、品牌打...[Details]
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If you had a dream one day, in which your phone was cast a magic spell, and then this phone began to become "different": you used it for a whole day, and the battery level only dropped from 100% to 8...[Details]
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The automated management and operation system has become an indispensable part of modern enterprises. The video image transmission monitoring system has been widely used in important occasions such...[Details]
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Recently, Microchip CEO Ganesh Moorthy wrote an article introducing the six major trends he predicts for the future. Here are the details of the article: It is a privilege to work in this industry...[Details]
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Buck converter has only two working modes, namely, the switch-on state and the switch-off state. First, establish the state equation and output equation for the two different working states of the id...[Details]
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Vacuum pressure gauges are used to measure the pressure or negative pressure of non-crystallized, non-solidified liquids, gases or steam media that are non-corrosive to steel, copper and copper alloys...[Details]
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This is a 0-5V voltage meter electronic production that uses ADC0809 as A/D conversion, four-digit common cathode digital tube for display, and AT89C52 as the single-chip computer . This ADC0809 (in ...[Details]
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/*Name: MCU reads DS18b20 clock chip /
/*Author: Zhou Guangming /
/*Time: December 6, 2010 /
/*Function: /
/* ...[Details]
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Learn to use a multimeter and you don’t have to worry about home wiring failures. The multimeter is one of the most commonly used tools for electronic circuit personnel. It is indispensable when test...[Details]
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1 Use oflash + eop to burn oflash u-boot.bin Then choose to burn to Nor Flash or NAND Flash. 2 Use uboot to burn 1 Use eop to burn uboot to Nor flash 2 Set 2440 to Nor Flash boot and enter uboot ...[Details]
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The diversity of hybrid vehicles in structure has caused differences in the use and performance of different hybrid models, which has also confused many prospective car owners. This article will furt...[Details]
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On October 29, the Korea Economic Daily stated that according to the latest Samsung semiconductor memory roadmap it has, Samsung Electronics will launch the next-generation V-NAND with more than 40...[Details]