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1.mdesc- map_io()
start_kernel
-- setup_arch(&command_line);
-- paging_init(mdesc);
-- devicemaps_init(mdesc)
-- mdesc- map_io();
The map_io here can be known fr...[Details]
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The road to 5G is long and arduous. Undoubtedly, this year is the first year of 5G terminals, especially smartphones. In the field of smartphone baseband chips, Qualcomm, Samsung, Intel, MediaTek, Hu...[Details]
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From September 19 to 22, the 2019 Tianyi Smart Ecosystem Expo was held in Guangzhou. This is the industry event jointly held by China Telecom and Qualcomm for the eleventh consecutive year. The theme...[Details]
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1. Introduction
When using portable electronic products, it is hoped that the remaining battery power and the working time can be known at any time, and relevant applications can be adjust...[Details]
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Segmentation principle analysis
If the stepper motor drive circuit controls the conduction or cutoff of each phase winding of the motor according to the distribution method determined by the ring dis...[Details]
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The earliest ideal charge pump model was proposed by Dickson J. As shown in the figure, its basic idea is to generate high voltage through the accumulation effect of capacitors on charges. Later, Wit...[Details]
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On April 6, Minde Electronics stated on its investor interaction platform that the current market price of 6-inch silicon epitaxial wafers is mainly concentrated in the range of 200-300 yuan per piec...[Details]
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Thermocouple is the simplest and most common temperature sensor. However, if you are not careful in use, it will cause large measurement errors. In view of the current problems, the main factors affe...[Details]
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People from Tokyo Medical and Dental University and Dai Nippon Printing
Tokyo Medical and Dental University and Dai Nippon Printing announced that through 3D MRI analysis, it was fou...[Details]
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A network analyzer is a powerful test and measurement instrument. As long as it is used and operated correctly according to the flow, it can achieve extremely high accuracy. It uses its own signal so...[Details]
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The flyback converter is a common circuit topology for auxiliary power supplies. Its advantages are that it can operate over a very wide input voltage range, the circuit is simple and has few compone...[Details]
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With the arrival of summer, family road trips will also increase. According to foreign media reports, this summer, CYBEX, a brand that focuses on providing safe, fashionable and innovative baby produ...[Details]
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10.4 Applications of PLD Devices
10.4.1 Development System for Programmable Devices
10.4.2 ABEL Hardware Description Language
1. The structure of ABEL source file
2. Basic synta...[Details]
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AI makes a lot of sense in manufacturing—it can significantly improve efficiency. However, preparation needs to improve. As more and more applications of artificial intelligence emerge, its potenti...[Details]
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Shanghai Huansheng New Energy Technology Co., Ltd. and Hangzhou Dianzi University have successfully developed the first solar energy and fuel cell power generation complementary system and energy s...[Details]
Analogue and Mixed Signal
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