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About interrupt grouping: STM32 has multiple interrupt groupings, and each series may have different grouping methods. However, grouping generally specifies how many preemption priorities and sub-pr...[Details]
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According to Tesla's official Weibo, the China-made Tesla Model 3 will be officially delivered to the public at 15:45 pm on January 7. You know, it only took 10 months from the start of factory const...[Details]
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Radar level meters are widely used in the level measurement of high-temperature, high-pressure, flammable, explosive, and condensable media. This is inseparable from the advantages of radar level met...[Details]
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Abstract: This paper presents a design method of using the internal current-type D/A converter and current/voltage conversion circuit of C8051FF330D to output 0~4V analog signal to control the output ...[Details]
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According to foreign media reports, Noopl seems to be one of the most interesting hardware startups born on the first day of CES. The Sacramento-based company has designed an accessory that is s...[Details]
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The oscilloscope is a very common instrument used in our work. Many people say that the oscilloscope is too complicated and they don’t know how to use it. Today I will ask you to learn how to use the...[Details]
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In the ARM system, there are usually three ways to control the execution flow of the program:
During normal execution, the value of the program counter (PC) increases by 4 bytes for each ARM instruct...[Details]
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Today, the recruitment for the ColorOS 12×Android 12 upgrade internal beta for OPPO Reno5 Pro+ 5G and OPPO Reno5 5G mobile phones has started. The recruitment period is from 15:00 on October 19...[Details]
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introduction
As energy becomes increasingly scarce, the main consideration for product design is energy saving. Design that can save energy and make reasonable use of electricity s...[Details]
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#Description: The chip used is 89C51, the specification of the LED dot matrix screen is 16*16, and two 74HC595 chips are used at the same time. The font generation software has a network disk link at...[Details]
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On the 6th, the Ministry of Industry and Information Technology officially issued 5G commercial licenses to China Telecom, China Mobile, China Unicom, and China Broadcasting Corporation, symbolizing ...[Details]
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Microprocessor: LPC2114
Compilation environment: Keil MDK V4.10
Ideas:
The reset of the microcontroller system is often divided into cold start and hot start. The so-called cold start is also k...[Details]
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Microchip Technology Inc. (Nasdaq: MCHP) today announced the industry’s lowest power passive access/passive start (PEPS) solutions. The two new devices, ATA5700 and ATA5702, offer an effective operat...[Details]
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0 Introduction
CDMA (Code Division Multiple Access) network has the characteristics of wide coverage, high efficiency and low cost. The data transmission rate of CDMA network can reach 200kb/s...[Details]
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Analysis process:
Program entry
Phase 1 Program Analysis
Second stage program analysis
2440 Development Board:
1.uboot entry:
To see the entry of...[Details]
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