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1. Block device structure
1. file_operations structure
Similar to the file_operations structure in character device drivers, there is also a file_operations structure in block device driv...[Details]
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The instrument that uses ultrasonic testing method to detect is called ultrasonic flaw detector. Its principle is: when ultrasonic wave propagates in the material to be tested, the ac...[Details]
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In actual work, the design of MCU timer delay program is usually divided into two schemes: hardware delay design and software delay design. Among them, the software delay operation of MCU timer is mo...[Details]
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Infineon is the first company to master the handling and processing of ultra-thin 20μm power semiconductor wafers
Cutting substrate resistance in half by reducing wafer thickness re...[Details]
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According to Japanese media reports, NEC will support the UK's development of 5G mobile networks after Huawei is excluded. The British government announced in July this year that it would ban H...[Details]
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Foreign players complained that some games had large fluctuations when playing, and many people believed that it was the fault of Exynos 2200 or Snapdragon 8 Gen 1. According to media report...[Details]
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After Qualcomm broke up with Apple, it turned to work for Chinese technology companies, providing them with people and money, and also providing technical support. From the perspective of US national...[Details]
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In various single-chip microcomputer application systems, the normality of the memory is directly related to the normal operation of the system. In order to improve the reliability of the system...[Details]
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Preface In layman's terms, the adapter pattern converts the interface of a class into another interface that the customer wants. It is often used when we write programs, especially when we use microc...[Details]
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There are 5 16-bit timers in the s3c2440 chip, 4 of which (timer 0 to timer 3) have pulse width modulation function, that is, they all have an output pin, and the timer can be used to control the p...[Details]
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1 Introduction
High reliability software generally refers to a type of software: if a failure occurs during the operation of this type of software, it will cause major catastrophic accidents or e...[Details]
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In recent years, the research and application of unmanned aerial vehicles (UAVs) have been widely valued by all parties. As a type of UAV, quadrotor aircraft can take off and land vertically, hove...[Details]
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Recently, market analysis agency Greenlight Insights released the VR offline market research report "2019 Location-Based Virtual Reality Industry Report". The VR offline entertainment market will rea...[Details]
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Ten years of experience in the industry, teaching you the MCU introduction, Lecture 22:
Before starting this chapter, let me correct a small bug in Section 17. I wrote in the original text:
"Save v...[Details]
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The circuit principle of Olate SBS-15 fully automatic hand dryer is shown in the figure. The circuit mainly consists of power circuit, control circuit and hand drying circuit (click to enlarge).
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