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1. Concept of interrupt priority
There are two concepts of priority in STM32 (Cortex-M3) - preemptive priority and response priority. Some people call response priority "sub-priority" or "sub-priorit...[Details]
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June 17, As a Chinese surveillance giant, Hikvision has always been a key company that investors pay attention to. Recently, an investor asked Hikvision on the interactive platform, how does the comp...[Details]
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1 Introduction The application of single-chip microcomputer in the field of industrial control is different from that in the civil and commercial fields. The environment of industrial control is rela...[Details]
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1 Introduction
The daily routine of institutions and colleges requires timing and beep prompts. The author uses AT89C51 microcontroller and LM386 audio power amplifier to form an automatic timing a...[Details]
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This circuit is a complete implementation of a low noise microwave fractional-N PLL with the ADF4156 as the core fractional-N PLL device. The PLL frequency range is extended to 18 GHz using th...[Details]
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With
the improvement
of
LED
luminous efficiency
and lifespan, coupled with the advantages of power saving,
energy saving
and environmental protection, the feasibility of LED ...[Details]
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According to Reuters, Google has suspended its cooperation with Huawei, which does not fall under the scope of open source licenses. Previously, the Trump administration decided to ban Huawei fr...[Details]
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1. Instrument model: Agilent ESG series E4438C vector signal generator; 2. Fault description: Self-test error, no output signal; 3. Inspection and maintenance: Detection: After detection, it ...[Details]
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Note: This part is mentioned in the initial understanding of uboot, but it still needs to be explained separately. It is very important to ping the development board and the host's Ubuntu. Understand...[Details]
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(1) LDR: L stands for LOAD. The meaning of LOAD should be understood as: Load from memory into register. The following statement explains it very clearly:
LDR R1,
R1 -
That is, ...[Details]
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If you want to connect your car to the Internet and enjoy big-screen entertainment at any time, you may need to own a smart connected car. According to statistics from Strategy Analytics, a total of ...[Details]
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In many cases, the data output by the DTMF decoder still needs to be sent to the microcontroller for corresponding calculation and processing, and then control the actions of various other devices....[Details]
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The following program needs two timer resources. It can be implemented by any PIC microcontroller with two timers. The MCU required for this example is MICROChip PIC16C62 INCLUDE "D:\PIC\P16XX.EQU"...[Details]
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Basics of using infrared thermometers
Understanding the working principle, technical indicators, environmental working conditions, operation and maintenance of infrared thermometers is the basis fo...[Details]
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In the first article, Regulations and Standards for Automotive Millimeter-Wave Radar (Part 1), we mentioned the news that “an empty cemetery showed a large number of human figures on the automotive...[Details]
MEMS sensors
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