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This document describes how to modify the user area size of the iTOP-4418 development board. The partition data in the document is for 16G eMMC. uboot settings Enter the uboot of iTOP-4418, as shown...[Details]
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1 Introduction
Printed circuit board (PCB) signal integrity has been a hot topic in recent years. There have been many research reports in China that analyze the factors affecting PCB signal inte...[Details]
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I recently read some boot code analysis, and there are still many things I don't understand. I plan to write about boot code analysis later. I first ran some bare metal programs without an operating s...[Details]
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How the timer/counter works
The structure of the timer/counter inside the MCS-51 microcontroller is shown in Figure 1. Timer T0 is composed of the characteristic function regist...[Details]
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ZVL is an economical desktop vector network analyzer launched by Rohde & Schwarz. Different from other products on the market, ZVL has strong expansion capabilities. In addition to traditional vector...[Details]
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Linux is really a very good system for developers. It should be familiar to developers. Usually, it is very convenient for us to develop stm32 under Windows. There are many tools, IDE and other suppo...[Details]
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On June 28, TF International analyst Ming-Chi Kuo said on social media that a survey result showed that Apple's self-developed iPhone 5G chip research and development may have failed, which means tha...[Details]
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According to foreign media GsmArena, a whistleblower said that he has confirmed that Samsung is indeed developing a 600-megapixel sensor. To prove this, he shared an internal document, which may also...[Details]
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With the entry of luxury brands and joint venture brands, the dominance of domestic brands in the domestic new energy market has been impacted, and how to break through is the challenge faced by dome...[Details]
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Wei Jianjun, chairman of Great Wall Motor, publicly stated that he does not believe that Chinese automakers can overtake others by relying on pure electric vehicles. This is why many domestic autom...[Details]
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Recently, I have seen many people discussing the RC spike absorption problem of Flyback's secondary-side rectifier diode on the Internet. I feel that everyone is still too traditional in dealing with...[Details]
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Recently, Huang Chunhui's research group at the School of Chemistry and Molecular Engineering of Peking University synthesized two df transition rare earth cerium (III) complexes Ce-1 and Ce-2 with s...[Details]
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After years of development, local enterprises have absorbed foreign research and development results, making wireless alarm products more stable than ever before. At present, they have basically be...[Details]
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1. EMI sources of switching power supplies
The EMI interference sources of switching power supplies are mainly reflected in power switch tubes, rectifier diodes, high-frequency transf...[Details]
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The 7th International Advanced Automotive Battery and Supercapacitor Symposium (AABC-07), a conference on rechargeable batteries and large-capacity capacitors for hybrid vehicles , was held in Long B...[Details]