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The parallel P3 port of the MCS-51 series microcontroller is a multi-function port. Its first function is a quasi-bidirectional port, which can be used as a general I/O port. Its characteristics are ...[Details]
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Vortex flowmeter is a commonly used flow meter. The use of any instrument is always inseparable from daily maintenance and care. No matter it is a fault of the instrument itself or interfered by exte...[Details]
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With the development of semiconductor technology, the current process accuracy has reached 7nm and 5nm. The constant pursuit of performance and cost is still strongly driving the technological evolut...[Details]
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Preface
1. Working temperature of capacitor in energy-saving lamp:
Because the lamp tube of the energy-saving lamp is integrated with the electronic ballast, when the energy-...[Details]
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GET is usually used to include source files that define constants. For example: GET 2440addr.inc AREA is used to define a segment, ENTRY is used to specify the entry point of the program, and END is ...[Details]
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Wireless sensor network is a new information acquisition and processing technology, which has been widely used in real life. With the development of communication technology, embedded technology a...[Details]
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According to foreign media reports, market research firm Canalys released its latest report showing that in the second quarter of 2019, global smart speaker shipments totaled 26.1 million units, a ye...[Details]
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Interface design: Initialize SDRAM Initialize the memory controller memsetup: mov r1,#MEM_CTL_BASE adrl r2,mem_cfg_val add r3,r1,#52 ldr r4, ,#4 str r4, ,#4...[Details]
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Doubly-fed induction generator (DFIG) is a new type of generator developed on the basis of synchronous motor and asynchronous motor. The main advantage of DFIG is its wide enough speed range, which...[Details]
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An oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, making it easier for people to study the changing p...[Details]
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Low voltage difference, high efficiency, smooth dynamic response, stable and pure voltage output, and the ability to effectively suppress the very "dirty" noise from the public power grid, etc., ar...[Details]
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This paper studies the 32-bit high-end embedded microprocessor and embedded operating system kernel based on ARM9, and designs a new data acquisition system platform. It is a research and devel...[Details]
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The relationship between PLC and frequency converter is one of inclusion and being included. Both PLC and frequency converter can complete some specific instructions to control the motor. PLC is a ...[Details]
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The fixed price purchase system (FIT) implemented in July 2012 will enter its fifth year in July 2016. Photovoltaic power generation is currently progressing well, but the FIT adjustment to be impl...[Details]
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The electronic circuit CAD simulation software PSPICE has powerful functions and broad application prospects in electronic circuit design. However, it cannot accurately describe the complex circu...[Details]
Power technology
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