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I will make a brief summary of the knowledge about captains that I have recorded while studying arm instructions, hoping it will be helpful to everyone.
1. Register R13 is often used as...[Details]
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Oscilloscopes are known for their large buffer capacity, which is higher than that of desktop oscilloscopes or similar PC oscilloscopes. Over the past 20 years, successive generations of PicoScope osc...[Details]
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Types and principles of particle counters
Optical Particle Counter
Optical particle counters use the Tyndall Effect to detect particles. The Tyndall Effect is named after John Tyndall and is ...[Details]
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1. Abstract
In current sensors, measurement errors are inevitable, which can cause speed fluctuations, including one and two times the electrical frequency of the stator. For undesirable harmo...[Details]
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The serial port is a tool for the microcontroller to exchange information with the outside world.
There are two communication modes for 8051 microcontroller:
Parallel communication: d...[Details]
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On March 2, Haozhi Mechanical and Electrical issued an announcement that it plans to establish a wholly-owned subsidiary "Guangzhou Haozhi Co., Ltd.
(tentative)" (hereinafter referred to as...[Details]
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Recently, the UK announced that it will completely remove Huawei equipment from its 5G network by 2027. Once the decision was issued, it caused a lot of controversy. CNN reported on the 18th that for...[Details]
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Shanghai, China, February 4, 2015 - NXP Semiconductors N.V. (NASDAQ: NXPI), Creditcall and Shenzhen SeeRongDa Technology Co., Ltd. today announced a complete hardware and software reference demon...[Details]
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Lenovo Legion has officially announced that it will hold a new product launch conference on April 8 to officially launch its annual flagship - Lenovo Legion Gaming Phone 2 Pro. This is also t...[Details]
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74HC595 is a serial-input and parallel-output shift register like 74LS164. They are often used in single-chip microcomputer systems to expand the parallel output interface. I have read some informat...[Details]
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LED
(Light
Emitting
Diode) is different from traditional tungsten light source in that it uses the PN junction potential difference of the diode to generate a point light source. It i...[Details]
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Recently, Albert Lo, a system engineer for personal electronics applications at Texas Instruments, and Mike Gilbert, a terminal equipment manager for personal electronics applications, conducted an ...[Details]
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The power amplifier, also known as the PA or "amplifier", is the most basic device in the audio system. Its task is to amplify the weak electrical signal from the signal source (from the mixing con...[Details]
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According to 9to5Google, OnePlus announced that its models can receive up to three years of Android underlying updates. OnePlus said that it is committed to providing users with at least thr...[Details]
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introduction
Frequency characteristic tester is also called scanner. Early frequency characteristic tester was completed by manually changing the frequency point by point. Later, a special scann...[Details]