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0 Introduction Due to the large number and variety of electronic equipment in special vehicles, the management capacity of the traditional semi-automatic power distribution method is limited, the v...[Details]
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1. Basic knowledge 1.1 Introduction to clock module The main clocks of 2440 include 4 PLLs: FCLK, HCLK, PCLK, UCLK; MPLL, UPLL. FCLK is used for CPU and has the highest frequency. HCLK is used for hi...[Details]
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Comparison between fluorescent lamps and LEDs
The working principle of LED is completely different from that of fluorescent lamp. Individual electrons jump across the pn junction of semiconduc...[Details]
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The storm is coming. To use the general functions of CC430, many modules still need to cooperate. Unity is strength. If you want the rain to fall on time, you must go through the cooperation of...[Details]
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Apple recently pushed the latest iOS 14.5 beta version, which brought some incremental improvements to the iOS 14 system that comes with the iPhone 12 series. We at the XDA forum believe that the iOS...[Details]
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热电偶是一种常见的被动测温元件。它也是一种有源传感器，测量时不需外加电源，并且测量温度范围（高达2000°C）很广。它可以快速响应，故系统运行几乎没有显著的延迟。 Thermocouple structure diagram: Thermocouple has a simple structure, mainly consisting of two metal wires form...[Details]
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The 8-bit 51 single-chip microcomputer has long occupied the mainstream market of microcontrollers (MCU), but with the development of technology and demand, the application growth rate of 32-bit micr...[Details]
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In the previous lecture, we realized the data transmission from the MCU development board to the computer. In this lecture, we will send instructions to the MCU through the computer, so that the MCU ...[Details]
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After the R16 version was frozen in June 2018, the complete version R16 that can fully reflect the three major features of 5G will be frozen in March 2020. The R17 version, which is expected to be fi...[Details]
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The inverter is a power regulation device that adjusts the power frequency according to the load demand to achieve precise control of the motor speed. In the process of using the inverter, correc...[Details]
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At present, the three most common faults of liquid level switches are: A: The instrument displays ERR01, ERR12, ERR14 and other codes; B: The instrument falsely alarms; C: The instrument has a black ...[Details]
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Cyclic Redundancy Check is a cyclic redundancy check that calculates a set of verification codes based on the data to verify whether the data has been changed or transmitted incorrectly during the ...[Details]
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With the widespread application of software products, the protection of software intellectual property rights has become important. Software products are encrypted by serial numbers, and each softwar...[Details]
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1. Introduction to Ramdisk:
Ramdisk is a virtual file system based on memory (not an actual file system), which uses a fixed-size portion of memory (this size is configured when compiling the ...[Details]
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0 Introduction
Automatic TV logo detection and recognition has received a lot of attention in the multimedia field. Nowadays, most mobile phones have camera functions, so people can take pictur...[Details]
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