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The program code for implementing delay in MCU assembly:
DELAY: MOV R7, #250;
D1: MOV R6, #250;
D2: DJNZ R6, D2;
DJNZ R7, D1;
RET
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introduction
The LCD screen itself does not emit light. In order to clearly see the content of the LED display, a certain amount of white light backlight is required. The backlight is ...[Details]
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On July 20, 2021, the heavy rain in Zhengzhou, Henan Province touched the hearts of people across the country. The heavy rain that followed and spread throughout Henan Province caused great harm to t...[Details]
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On November 16, 2017, the "Energy Talk" summit, an industry event in the energy circle, was successfully held in Beijing. As the energy theme forum of the 8th Caixin Summit, "Energy Talk" has recei...[Details]
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Ultrasonic flowmeter classification and characteristics Ultrasonic flowmeters can generally be divided into two categories: transit time ultrasonic flowmeter and Doppler ultrasonic flowmeter. In a fl...[Details]
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Liquid crystal displays are composed of liquid crystal boxes and backlight components. The backlight provides sufficient brightness and high uniformity for the liquid crystal panel to ensure the di...[Details]
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The economy and market in 2019 are full of uncertainties, but the seemingly weak industry environment has brought greater opportunities to OPEN MIND and its hyperMILL® software. More and more manufac...[Details]
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□ Fang Wei, Deputy Chief Engineer of Northern Telecom Division, China Telecom Group
The domestic telecommunications market is undergoing a transformation. Restructuring and full-service operat...[Details]
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ADLINK, a professional manufacturer of embedded computing platforms, will present its latest intelligent touch computers, high-brightness smart screens and industrial-grade mobile handheld data termi...[Details]
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Foreign market structure
In the "2016-2020 China Photovoltaic Inverter Industry In-depth Research and Investment Prospect Forecast Report", CITIC Consulting pointed out that the main manuf...[Details]
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RTI (Real-Time Innovations), the largest provider of software frameworks for autonomous systems, recently announced that it has joined the Teleooperation Consortium (TC). RTI CEO Stan Schneider also ...[Details]
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Wien Bridge Oscillator
This circuit is composed of a RC series-parallel network to form a frequency selection network, and also serves as a positive feedback circuit to generate oscillation...[Details]
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Dimensity Auto automotive platform integrates NVIDIA GPU chips to provide advanced artificial intelligence, connectivity and computing capabilities for the next generation of smart cockpits May 29,...[Details]
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In LED lighting applications using
AC-DC
power supplies, the building blocks of power conversion include discrete components such as diodes, switches (FETs), inductors, capacitors, and resistor...[Details]
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The LT3840 is a high voltage, synchronous, step-down switching regulator controller that can operate from a 2.5V to 60V supply. When configured for user-selectable Burst Mode operation, the LT3840 's...[Details]
Analog electronics
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