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Just like the title, 3 problems were found during the implementation process. They are written down first and need to be answered: 1. After uboot is started, a lot of information is printed on dnw. ...[Details]
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max7219 is a driver chip for driving 8-bit 7-segment digital LED or 8x8 dot matrix LED. It uses 16 pins to manage 64 light points in a column scan mode. The refresh rate is 500-1300Hz when displaying...[Details]
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On May 22, Sharp AQUOS Zero 2 was launched in Taiwan, China, priced at NT$21,990 (approximately RMB 5,200). Sharp AQUOS Zero 2 features a slim design, and its body weight is only 141g. Accor...[Details]
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1. Peak-to-peak jitter and RMS jitter
Over the years, the most commonly used methods for quantifying jitter are Peak-to-peak Jitter and Root-Mean-Square Jitter (1 or RMS value of jitter histog...[Details]
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Great companies are always market leaders, not followers. On the one hand, they seize the first opportunity and occupy the market high ground; on the other hand, in today's abundant material world, p...[Details]
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Sina Digital News, August 17th morning news, last month, Logitech launched the Folio Touch, a $160 keyboard accessory that can be used with the 2018 or 2020 iPad Pro. Now someone has written...[Details]
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Introduction In many cases, it is necessary to accurately measure the flow rate of gas. With the development of electronic technology, people hope that the measuring device can directly give electric...[Details]
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The life cycle of automotive chips is longer and needs to be maintained for more than 10 years. The usage scenarios have higher requirements for functional safety, and the scarcity of automotive SO...[Details]
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Resistance is both a component in a circuit and a physical quantity. It indicates the magnitude of the conductor's resistance to current and is an energy-consuming component whose main function is to...[Details]
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Today, Apple released iOS 14.0.1, the first update to the iOS 14 operating system released on September 16. To get the new version, go to Settings General Software Update from the home scree...[Details]
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Shenzhen Newdi Technology Development Co., Ltd. ("Newdi Technology", or "NDT"), an industry-leading provider of pressure-sensitive touch solutions, recently attended the online seminar "Discussion on...[Details]
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Before executing the sleep() function, you can set the unused pins to analog input, high impedance mode. ANSELAbits.ANSA4 = 1; //Before entering sleep, set the LED IO port to analog input TRISAbits...[Details]
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About a month ago, a tipster revealed that OnePlus is working with German camera giant Leica to develop the cameras for the OnePlus 9 series. Now, another tipster says that this information is not tr...[Details]
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GUI (Graphical User Interface) greatly facilitates the use of non-professional users. Users do not need to remember a large number of commands. Instead, they can operate through windows, menus, butto...[Details]
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In GPS measurement, the main errors that affect the observation accuracy can be divided into the following three categories:
1. Errors related to GPS satellites
The errors related to GPS ...[Details]
Analog electronics
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