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In order to implement printf printing in the program, the use MicroLib option was checked in the keil Target. The following error occurred during compilation: L6218E: Undefined symbol __initial_sp (r...[Details]
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Here we use PCF8591 AD DA chip and 51 single-chip microcomputer, and a potentiometer. By controlling the potentiometer, PWM wave is generated to control the rotation of the servo. And the angle is di...[Details]
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iOS 15 made its debut at WWDC 21. The new system does not seem to have many amazing new features, but it makes people feel that Apple has put a lot of effort into the details of the new system this t...[Details]
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I found that some friends who have just started amateur radio communications do not have a clear understanding of the relationship between sideband, difference frequency and sum frequency. It is n...[Details]
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In some cases, the discharge circuit is required to provide an approximately rectangular light pulse, which requires the use of a more complex simulated linear discharge circuit, which is a dischar...[Details]
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According to Qichacha, Meiken Semiconductor Technology Co., Ltd. (hereinafter referred to as "Meiken Semiconductor") was established on January 26. The company's registered capital is RMB 200 million...[Details]
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On May 11, Mijia's official Weibo account announced a new product: Mijia Faucet Water Purifier, which will start crowdfunding at Xiaomi Mall and Xiaomi Home at 10:00 on May 13. The crowdfunding...[Details]
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On January 8, Xinwei Communication responded to multiple questions from investors on the interactive platform. It said that the current wireless charging market has a large space and is in a stage of...[Details]
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// There are many mysteries in just over 200 lines of program, especially the processing after the cursor is lifted. #include linux/errno.h #include linux/kernel.h #include linux/module.h #include...[Details]
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Recently, the MPEG LA patent pool announced that it has filed a patent infringement lawsuit against Samsung in the Düsseldorf Court in Germany. The patents involved are standard essential patents fo...[Details]
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1. Large display The large display provides optimal signal visibility. The 8.5-inch WVGA display has at least twice the display area and five times the resolution of other oscilloscopes in its class ...[Details]
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How to connect wireless Bluetooth speakers to a computer
Usually at home, when watching TV/movies on a computer, the volume of the computer is too low, which is always a bit unpleasant. If you...[Details]
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Multi-domain Integration Strategy in System-on-Chip Design
Large multi-domain analog mixed-signal (AMS) systems are becoming more common in the electronics industry. Such designs must ...[Details]
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The MAX15301 is a full-featured, high-efficiency, digital point-of-load (POL) controller with advanced power management and telemetry capabilities. With a PID-based digital power regulator, the MAX...[Details]
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Soft starter undervoltage fault is one of the common problems in electrical systems. This article will introduce the causes, diagnosis methods, treatment measures and prevention measures of soft st...[Details]
DSP and ARM Processors
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