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Two's
complement representation of positive numbers: same as original code representation
two's complement = 0000 0001 = 01H
two's complement = 0111 1111 = 7FH
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Now that we know how to use UART, let's study how to use USART. Similar to the last time, this time we also use the USART serial port to communicate with the PC. The difference from the last time is ...[Details]
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Emerging technologies such as 5G, AI, and edge computing are pushing various fields such as automobiles, industry, and medical care into the wave of digital transformation. Traditional chips are in ...[Details]
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Xiaomi released its financial report for the first quarter of 2023 today, revealing that the company invested 1.1 billion yuan in innovative businesses such as smart electric vehicles. It is reported...[Details]
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Use Keil4 to create a project for ARM7 and use J-LINK for debugging. The specific steps are as follows: Select New uVision project... in the Project menu, select the correct path and save it with a...[Details]
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Spectrum analyzer users may have used the video filter bandwidth (VFB) feature of a spectrum analyzer without really understanding what it means. Most users probably have only a vague idea of w...[Details]
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Abstract: A new scheme for remotely controlling LED billboards through a handheld transmitter is proposed. The system scheme of high-stability wireless digital communication is discussed. The key...[Details]
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With the development of electronic technology, especially the development of digital technology, it is becoming more and more important to use digital circuit technology to realize the automatic ligh...[Details]
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According to MacRumors, Apple's latest document has deleted support for Apple Music's built-in speaker Dolby Atmos spatial audio on the iPhone XR, iPad mini 5, iPad Air 3, and iPad 6th to 8th g...[Details]
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Abstract:
This paper proposes a wireless power transfer (WPT) antenna configuration and active rectifier circuit that is compatible with both AirFuel and Qi wireless charging standards. The p...[Details]
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When photography was first invented, it was a skill with a "high threshold". The complicated shooting operation and high equipment cost meant that photography art was destined to be a benefit enjoyed...[Details]
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The latest forecast from market research firm Canalys shows that global smartphone shipments this year will drop 10.7% from 2019. However, as mobile phone manufacturers continue to launch new phones,...[Details]
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Graphics cards and monitors make up the computer display subsystem. Under normal circumstances, the failure rate of graphics cards is not high, but with the increase in applications and the rapid i...[Details]
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Melexis Launches New High-Speed Inductive Motor Position Encoder to Help Simplify Vehicle Electrification Systems
Innovative architecture with built-in offset and propa...[Details]
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introduction
The basic test principle of the PCB bare board tester is Ohm's law. The test method is to add a certain test voltage between the points to be tested, select the two points to ...[Details]
DSP and ARM Processors
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