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At present, iPad can replace traditional PC to do many tasks, and for some users, iPad tablet computer has even completely replaced the role of traditional PC in daily life. According to the sales a...[Details]
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0. CPU timing knowledge One machine cycle is 12 oscillation cycles, which is 1/12 of the crystal frequency if converted into frequency; When writing programs in assembly language, one instruction...[Details]
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Recently, many users have reported that their MacBooks cannot be charged. The main symptom is that the battery level is only 1% when the computer is turned on. The system shows that the battery is no...[Details]
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Your new radio may have a wider filter than you think.
The confusion of AM bandwidth:
IF filters today and yesterday
Whether a radio is enjoyable to listen to, or suitable for ...[Details]
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In recent years, Apple's LCD supplier, Japan Display Co., Ltd., has not had an easy time. In addition to five consecutive years of losses, JDI today revealed on its official website a corruption case...[Details]
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(23) Label: BHD2 Function: Convert double-byte BCD decimal to double-byte hexadecimal decimal
Entry condition: The double-byte BCD code decimal to be converted is in R4 and R5.
Exit information: T...[Details]
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introduction Embedded system is a professional computer system with practical application as the core, and has strict requirements on function, reliability, cost, volume and power consumption. With t...[Details]
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RTC is similar to DS1302... Of course, it can be divided and has a 32-bit counter... Alarm, seconds, overflow interrupt... etc. RTC is on the APB1 bus...
To use RTC, generally speaking, the backu...[Details]
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This year, major cloud vendors have released proprietary automotive clouds. In the era of intelligence, cloud migration has become a standard feature of cars. Huawei, Tencent, Baidu, and Alibaba are ...[Details]
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The importance of crystal oscillator to microcontroller is self-evident. Simply put, without crystal oscillator, microcontroller cannot work. We also know that it is a common phenomenon that the crys...[Details]
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References: ① Keil Help ② "STC MCU Principles and Applications - Analysis and Design from Devices, Assembly, C to Operating Systems" by He Bin ③MCS-51 Series Microcontrollers and Their Applications ...[Details]
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Gentex , a supplier of automotive automatic dimming rearview mirrors and electronics, has developed a Full Display Mirror (FDM). FDM is an intelligent rearview mirror system that uses a custom camera...[Details]
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Since I need to use an LCD screen (320*240) to display pictures, and the number of pictures is relatively large (hundreds of pictures), and the pictures are required to be saved in the 16M SPI FLASH,...[Details]
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Measuring DDR2 storage devices requires separating the read/write access cycles. In DDR2, the relationship between the Strobe and Data buses can be used to distinguish between read and write operatio...[Details]
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1. Range selection: When measuring stable pressure, the maximum range of the pressure gauge is generally close to or greater than 1.5 times the normal pressure measurement value; when measuring puls...[Details]
Analog electronics
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