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A basic fiber-optic communication system is very simple: an LED transmitter converts an electrical signal into an optical signal and couples it into a transmission optical fiber. The optical signal tr...[Details]
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element14 and Raspberry Pi Ltd celebrate 10th anniversary of partnership, find the longest-serving Raspberry Pi project The competition will select 10 winners, who will win a prize containing 10 Ra...[Details]
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Part 1: Introduction to ARM Assembly Processor arm VS. intel There are many differences between ARM and Intel, the most important difference is the instruction set. Intel is a complex instruction set...[Details]
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There are many foundry companies in mainland China, of which three have entered the top 10 in the world, namely SMIC, Huahong Group, and Jinghe Integrated Circuit. According to the ranking in Q4 2021...[Details]
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Abstract: This application note provides a quick, easy-to-use tool for determining the true location of image signals and the location of aliasing frequencies, as well as harmonic frequencies in a ...[Details]
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Taking Key4 as an example, a 2ms timer interrupt is used to eliminate jitter and the key status of 8 consecutive times (16ms) is judged. If all are 1, it pops up and sets the current state of the ...[Details]
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At the end of September this year, Huawei released the nova 9/Pro mobile phone. It was reported that the phone would be pre-installed with HarmonyOS 2.0.1, but it was subsequently postponed. ...[Details]
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After the mobile phone market entered 2022, the mobile phone system has also ushered in a new development. There is almost no system that can experience lag, frame drops, negative optimization, etc.,...[Details]
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6. Switch data
In arch/arm/kernel/head-common.S:
00014: .type __switch_data, %object
00015: __switch_data:
00016: .long __mmap_switched
00017: .long __data_loc @ r...[Details]
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According to display analyst Ross Young and whistleblower Jon Prosser, Apple may delay the release of the iPhone 12 Pro or cancel the feature altogether due to supply chain issues with 120Hz screens....[Details]
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Supply Voltage Monitor
When the power supply voltage exceeds the set level, the 555 circuit oscillates. The flashing frequency of LED1 is controlled by changing C3. ...[Details]
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Bloomberg reported on Thursday (10th), citing people familiar with the matter, that Tsinghua Unigroup Co. is considering selling its French chip manufacturer Linxens. Tsinghua Unigroup has been com...[Details]
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IHS Markit recently revised down its forecast for global new car sales in 2019 to 91 million units, a 2% year-on-year decrease, compared with the original forecast of a year-on-year increase. Kyo...[Details]
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First, learn basic bare metal programming. For those who learn hardware, they must first have a perceptual understanding of the basic usage of the hardware, and they must also have a deep underst...[Details]
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With the application of a large number of emerging data services, the power consumption level of smartphones and tablets has increased significantly, resulting in a significant reduction in standby...[Details]
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