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With the development of electronic technology, the design of digital systems is moving towards high speed, large capacity and small size. The traditional bottom-up design method can no longer ...[Details]
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From July 5 to July 7, 2023, the 13th China Automobile Forum hosted by the China Association of Automobile Manufacturers was held in Jiading, Shanghai. With the theme of "New Era, New Mission and New...[Details]
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Self-driving cars are no longer a distant concept and are even on the road in some countries. To meet new driving needs such as convenience, safety, autonomy, and electrification, the automo...[Details]
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1. The S3C2440 storage controller provides signals for accessing external devices, such as NAND Flash, SRAM, NOR Flash, network cards, etc. Features are as follows: — Little/Big endian (selecta...[Details]
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Why do we need to read README? I think it is to make it easier for us to understand U-BOOT, especially to grasp the overall situation. Of course, the developers wrote more than 200,000 characters and...[Details]
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Many video devices, including the Analog Devices ADV7179 DAC, come with dedicated analog baseband TV interfaces for PAL and NTSC video signals. Unfortunately, these types of DACs only accept video in ...[Details]
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1. Question: Should I choose AT89C51 or 89S51 when learning 51 series microcontrollers ? Answer: 89C51 and 89S51 have the same core. 89S51 has several obvious upgrades over 89C51 as follows: ...[Details]
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Design Problems in LED Lighting Power Supply Design
In the design of LED lighting power supply, there are several design problems: the life of electrolytic capacitors does not match that of LE...[Details]
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The National Space Science Center of the Chinese Academy of Sciences organized a summary and review meeting for the in-orbit test experiment of my country's first space gravitational wave detection t...[Details]
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Driving LEDs faces many challenges. For example, the forward voltage will change with changes in temperature and current, and the forward voltage of LEDs from different individuals, batches, and su...[Details]
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The transition to electric mobility presents a major opportunity for the continent to enter a new era. Africa has a low rate of motorization compared to other parts of the world. In...[Details]
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The first article In project development, it is crucial to ensure the reliability of product operation. If an exception is encountered, it is important to be able to recover, rather than being...[Details]
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On June 25, the 2024 Qingdao International Display Conference and the first Pan-Semiconductor Industry Development Conference opened grandly, joining global industry leaders to explore new trends...[Details]
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1 Introduction
Pulse
measurement is a measurement to detect whether there is a pulse. When there is a pulse, the light is blocked. When there is no pulse, the light is highly ...[Details]
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1. Causes and consequences of missed detection and misjudgment Penetrant testing mainly consists of 9 major links: pre-cleaning, drying, penetration, pre-water washing, emulsification, water washing,...[Details]