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The latest generation of the vivo S series, the vivo S10 series, has now started preheating offline. Judging from the posters exposed by many digital bloggers, it is still a slim flagship focus...[Details]
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Overview
The increasing size and complexity of automotive testing has begun to focus on evaluating the performance of multimedia components in the system. From rear-view cameras or 360° panoramic c...[Details]
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ASMPT printer realizes automatic solder paste transfer and quick scraper replacement
More efficient solder paste printing process
As a market pioneer and innovation leader i...[Details]
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1. Instrument Model Rohde & Schwarz Signal Generator SMR20 2. Fault phenomenon Black screen and no boot 3. Maintenance and Inspection After the instrument arrived, the engineer first verified the i...[Details]
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TWS (True Wireless Stereo) Bluetooth headsets are extremely popular audio products in recent years. With the help of Bluetooth chips, it first establishes a wireless connection between the mobile pho...[Details]
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As a new type of display material, LED dot matrix has developed rapidly in recent years and has a good market prospect. Among them, LED large-screen display screens are widely used in industries, tra...[Details]
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An ultrasonic rangefinder is made using the STC89C52 microcontroller, ultrasonic module (HC-RS04), DS18B20 digital temperature sensor and LCD1602 liquid crystal display module. The first line of the ...[Details]
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GM released information about the BEV3 drive system and the Ultium battery. Judging from the information released, there is still some content worth seeing. The biggest feature is the 200kWh battery ...[Details]
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1 Introduction Phase shift signal generator is an important part of signal source, but traditional analog phase shift has many shortcomings, such as the phase shift output waveform is easily ...[Details]
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S_I EQU P1.5 ;Content sends
SCK EQU P1.7 ;Serial CP end
RCK EQU P1.6 ;Output CP end
EN EQU P1.4 ;EN is 138 enable end. High level turns off the display; low level displays
;********...[Details]
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On the evening of March 17, SMIC announced that Dr. Gao Yonggang, the acting chairman of the company, was appointed as the chairman of SMIC, effective March 17, 2022. Dr. Zhou Zixue resigned from the...[Details]
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AC servo motor
(1) Cage-type two-phase AC servo motor (slender cage rotor, nearly linear mechanical characteristics, small size and excitation current, low-power servo, and not smooth enough a...[Details]
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Introduction "Conference video system" refers to a system that allows people or groups in different places to transmit sound, images and text materials to each other through communication lines ...[Details]
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AVR port is a true bidirectional port, unlike 51 pseudo bidirectional. This is also an advantage of AVR, just pay attention to DDRn when operating. True bidirectional port is not as convenient as p...[Details]
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This article is based on the mstar801 platform Linux2.6.35.11 version.
First of all, it should be noted that system calls do not cause process context switching.
1. Introduction to system call - th...[Details]