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Knowledge points: 1. The concept of operating system layering Windows: bios → kernel mode → user mode → user program Linux: bootloader → kernel → file system → user program 2. Intro...[Details]
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The wheels are rolling, the music is flowing, what's more satisfying than loading a big theater into your car? On April 17, 2023, Huawei's nova11 series and full-scenario new product launch confere...[Details]
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Each time the system is powered on/reset, the processor is in a state of minimum performance, that is, only the most basic functions. At this time, it can only read instructions from the reset v...[Details]
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introduction
Data acquisition technology is a popular and practical electronic technology. It is widely used in signal detection, signal processing, instrumentation and other fields. In recent year...[Details]
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If a brand new mobile phone is equipped with a processor with an AnTuTu score of 80,000, 3GB of memory, and 32GB of built-in storage, and then is sold openly in the mainland market, then either the s...[Details]
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Basic connection between CH341 and USB interface
P4 is a USB port. The USB bus includes a pair of 5V power lines and a pair of data signal lines. Usually, the +5V power line is red,...[Details]
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What is 51 microcontroller 51 microcontroller is the collective name for all microcontrollers compatible with the Intel8031 instruction system. The ancestor of this series of microcontrollers is ...[Details]
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In recent years, as Apple AirPods have received positive market reviews and shipments have grown significantly, other mobile phone brands and traditional headphone manufacturers have rushed into the ...[Details]
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Fingerprint locks are highly sought after by high-end families! Installing fingerprint locks on your door not only facilitates our daily life and work, but also reflects the quality and taste of mo...[Details]
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According to news on April 18, Apple’s first “fall detection” function patent can be traced back to 20190103007, which was announced in 2018. It has subsequently obtained at least 5 related patents....[Details]
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4 Application Circuit ML2036 is simple and easy to use, and can easily generate program-controlled sine wave signals. Figure 4 shows the hardware principle design of ML2036 generating pr...[Details]
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High-frequency electrodeless lamp is a high-tech product that integrates the comprehensive application of electronic technology, vacuum science, power electronics, plasma science, magnetic material sc...[Details]
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The Internet of Things refers to a huge network formed by combining various information sensing devices, such as sensors, radio frequency identification (RFID) technology, global positioning system...[Details]
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In order to save space in the data memory in Keil , an array or string is defined by the "code" keyword to be stored in the program memory: uchar code buffer ={0,1,2,3,4,5}; uchar c...[Details]
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On October 24, 2024, at the GEEKCON conference, a security team demonstrated how to crack
the protection system of
a
smart car
through a live demonstration, unlocking and starting the vehicl...[Details]