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To use the timer/counter interrupt, the following conditions must be met. 1) Interrupts are always enabled EA = 1; 2) The interrupt source is allowed to be turned on ET0 = 1 or ET1 = 1; ...[Details]
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On October 19, 2020, the Ministry of Industry and Information Technology issued an approval document, approving China Mobile and China Telecom to carry out eSIM technology application services in the...[Details]
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Electronic crossovers are divided into passive and active types according to whether they use amplifiers. The passive type is composed of resistors and capacitors, has a simple structure and no oth...[Details]
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Period
and
Frequency
Cycle---the time it takes for the AC quantity to change once
Frequency---the number of times the AC qua...[Details]
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1. Development of rolling bearing fault diagnosis technology Rolling bearings are important parts in rotating machines and are most widely used in various mechanical departments. Because it has a ser...[Details]
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On August 11, according to the official news released by Hefei Economic and Technological Development Zone, the automotive-grade domain controller AD1 for the L4 autonomous driving market was succe...[Details]
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Resistance, the resistance of a substance to electric current is called the resistance of the substance. A substance with low resistance is called an electrical conductor, or conductor for short. A...[Details]
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Power supply devices are indispensable components in electronic and electrical equipment. Switching power supplies are favored by related industries for their high efficiency, small size, light wei...[Details]
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TP-LINK infrared cameras are installed at the cashier counter, elevator, corridors and entrances and exits on each floor to form a monitoring system with no blind spots. In the topology, a PoE switch...[Details]
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Through the previous analysis, we know that in LPC824, the operation of the GPIO port involves a total of 68 registers. So which registers should be used, especially for registers with the same funct...[Details]
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Because when driving the bare board, it needs to be interrupted Exception MMU MMU is a memory management unit in the CP15 coprocessor, which is embedded in the ARM chip. Its function is to map virtua...[Details]
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To analyze the Series 2300 power supply/load circuit combination, the entire power supply is modeled as a feedback network consisting of an ideal error correction amplifier, an ideal amplifier output ...[Details]
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The solution is simple, as follows: First of all, is there any compilation? Is there any error after compilation? If there is an error, it will cause the download to fail. Then install the following ...[Details]
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Many people have misunderstandings about the memory of 51 MCU. The most common ones are the following two: ① If the number of variables exceeds 128, the compact mode must be used for compilation. T...[Details]
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The document describes a universal, non-isolated, high efficiency, high power factor (PF) LED driver designed to drive a nominal LED string voltage of 200 V at 90 mA from an input voltage range of 90 ...[Details]
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