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Interrupt system process analysis: asm_do_IRQ(unsigned int irq, struct pt_regs *regs) handle_IRQ(irq, regs); generic_handle_irq(irq);/*Garmen: perform general interrupt processing*/ stru...[Details]
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“There will be all kinds of unimaginable things happening on the road to AI, but our determination to move forward will not change.” Baidu's AI Developer Conference was full of highlights, but ...[Details]
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The Internet of Things is one of the development trends of the global information industry and is also a key development direction of my country's "12th Five-Year Plan". At present, the country i...[Details]
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According to Appleinsider, a Twitter whistleblower revealed that the iPhone 12 series has begun mass production this week. According to @Jon Prosser, the "iPhone 12" will not be equipped with a 120Hz...[Details]
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With the acceleration of energy transformation and the deepening of power system reform, the relationship between energy, electricity and users has become increasingly close, and the concept of "in...[Details]
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The forward and reverse rotation of the motor is widely used and is also one of the required items in the low-voltage electrician practical examination. Only when we fully understand its working pr...[Details]
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The figure shows the series use of SW399. At this time, two SW399 share a set of power supply, and the output voltage of SW399 with double output voltage is about VO=14V.
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In the early morning of October 19th, Beijing time, Apple’s second new product launch conference of the fall arrived as scheduled. Apple fans were not disappointed. The new generation of MacBook P...[Details]
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With the rapid development of economy, the number of cars owned by the society has increased sharply, and the problem of vehicle management and deployment of various units is more prominent. At th...[Details]
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OFweek Cup 2022 China
Robot
Industry Annual Awards (abbreviated as OFweek Robot Awards 2022) is jointly organized by OFweek, China's high-tech industry portal, and its authoritative robo...[Details]
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Yesterday (29), Jiwei.com reported that GUI Global Products filed a lawsuit, accusing Apple's AirPods and Powerbeats Pro series of products of infringing the magnetic headphone box patent of its bran...[Details]
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The following knowledge points are notes made based on Wei Lao Da's tutorial, and the board is S3C2410.
About NorFlash and NandFlash
NOR
NAND
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MOSFET selection in max8720 circuit
The step-down dc/dc converter circuit composed of max8720 is shown in the figure. The current conditions are vin=7~24v, vout=1.25v, Iout(max)=15a, fsw=300khz, t...[Details]
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In the process of the CPU running according to the instructions step by step (main program), there may be other more urgent things that need to be done (interrupt service routine), which requires the...[Details]
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0 Introduction
Phase lock technology is a phase negative feedback frequency control technology. This technology has no residual frequency difference when locked, and has good narro...[Details]
Embedded System
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