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What I want to write today is to precisely control the 85c51 microcontroller to output a square wave with a waveform period of 1s. If the delay function is used, the delay may be very vague, and the ...[Details]
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Specific implementation functions Functionality: (1) Use digital tubes to display hours, minutes and seconds in the format of "hours-minutes-seconds"; (2) Use 6 buttons to control hours, minutes ...[Details]
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1 Introduction
The high-frequency transformers and inductors used in the power supply system, such as the flyback transformers used in cathode ray tube (CRT) displays, usually have strong radi...[Details]
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The application is very wide, and sometimes two or more power supplies are used in series. Here is a brief introduction to this application.
Figure 2 Series voltage regulator
circuit
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First of all, BootLoader and user program are two projects. The codes of the two projects are stored in different flash by modifying the PRM file, and the switching between the two projects is realiz...[Details]
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There is no doubt that Apple is promoting new terminals with under-screen fingerprints, after all, they have a large number of patents. According to the whistleblower @手机陶瓷达人 on Weibo, a fri...[Details]
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On December 9, vivo released the new OriginOS Ocean system. After a period of internal testing, the public beta version has now been pushed to 13 models of the vivo X60/X70 and iQOO series, whi...[Details]
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As we all know, China's semiconductor talent faces a huge shortage compared to demand. Data shows that around 2020, the talent demand in my country's integrated circuit industry will be about 720,000...[Details]
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The situation took a turn for the worse. A few days ago, news came out that the United States is discussing with Intel and TSMC about building a chip foundry in the United States. TSMC stated that it...[Details]
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In embedded system development, the main programming languages currently used are C and assembly. Although C++ already has a corresponding compiler, it is still relatively rarely used.
In sligh...[Details]
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The whistleblower blogger @数码闲聊站 released some news about Xiaomi Tablet 5 and Redmi gaming phone. Xiaomi Tablet 5 will be submitted for online filing soon, and Redmi gaming phone will be released thi...[Details]
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Researchers at the University of Tokyo have explored the physics and chemistry of electrical energy storage for the first time and discovered new ways to improve lithium-ion batteries . They have suc...[Details]
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89C52 controls MAX7219 to drive digital tubes, providing source code, schematic diagram, welding diagram, etc. Links are at the end of the article. Schematic Source code max7219.h /***********...[Details]
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In 2023, the automotive semiconductor market will grow strongly, and global players are vying to capture market share in the rising trend of electrification and intelligence. Which companies stand ou...[Details]
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Automotive chip grade
According to the automotive electronics standards set by the United States, automotive chips are divided into five levels, the smaller the number, the higher the level.
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Test/Measurement
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