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adr lr, here // store lr, prepare for b (jump) ldr r0, // Store reloc_off in new_gd in r0 for calculation of new lr add lr, lr, r0 // Change lr so that when relocate_code returns, it jumps to the ...[Details]
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In 2021, the chip shortage was a fig leaf; in 2022, the chip shortage will be a touchstone. Last year, there were a lot of jokes about chip shortage. It is said that when the summer was hottest, ...[Details]
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On August 15, Gaogong Mobile Robot learned that Shanghai Zongwei Automation Co., Ltd. (hereinafter referred to as "Zongwei Automation")
completed an angel round of financing of tens of ...[Details]
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On July 3, the "Tianyue" domestic computer offline ceremony was held simultaneously in Shenyang and Beijing, hosted by the Second Academy of China Aerospace Science and Industry Corporation, ...[Details]
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Telescope imaging principle diagram
Principle introduction: On the left side of the picture is a very large objective lens, which can collect weak light from afar, and on the right side is the e...[Details]
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Pingshan District of Shenzhen City has issued the application guidelines for the 2019 Economic Development Special Fund Integrated Circuit Third Generation Semiconductor Special Fund. According to ...[Details]
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Frequency circuit design
3.5.1 Commonly used frequency measurement methods The frequency of microwave signals is one of the main parameters that characterize the characteristics of microwave signals ...[Details]
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——When production designs involve fast signals and time is of the essence, it is important for engineers to have accurate instruments and good troubleshooting tools. To meet this challenge, oscillo...[Details]
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Overview
There is a nonlinear relationship between the input and output of piecewise linearization.
The basic principle of
piecewise linearization
is to divide the input signal into several ...[Details]
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Make a minimum system board: If you have never done ARM development, it is recommended not to be greedy and complete at the beginning, and make all the applications well, because the startup method o...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
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Spectrum Analyzer is mainly used to display the spectrum characteristics of the frequency domain input signal, so it is an indispensable measuring instrument for signal analysis. Spectrum analyzer ...[Details]
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According to foreign media reports, autonomous vehicle navigation has been perfected worldwide, but before autonomous vehicles can really become popular, a series of problems need to be solved first....[Details]
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The system clock can select internal or external clock, the clock frequency can be multiplied, the bus clock is 1/2 of the system clock, the timer clock can select the clock source, the clock source ...[Details]
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In October, Qualcomm issued a security warning, saying that there were serious vulnerabilities in as many as 64 of its chipsets. Since the vulnerability was already exploitable when it was first ...[Details]