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. 2. 3. 4. Add header file directory Convert to relative directory 5. Set the output file directory 6. Set up simulation tools ...[Details]
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1. The concept of embedded system Focus on understanding the concept of "embedding" It can be understood mainly from three aspects. 1. From the hardware perspective, the CPU-based peripheral...[Details]
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The difference in power consumption between ARM and X86 has always been a hot topic. ARM can be very low, even less than 1 watt. The chip of X86 server can reach 100-200 watts, and even the embedded p...[Details]
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Timer realizes LED breathing light Experimental principle: When the light flashes at high speed, it takes a short time for the light signal to be transmitted to the brain nerves. After the light effe...[Details]
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As more and more AI operations are added to mobile phones, AI performance has become a key performance indicator of mobile phone processors. Recently, we have noticed that a testing tool has f...[Details]
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The advantage of the UJT trigger circuit is that the circuit is simple. However, the output generated is a sharp pulse, and the phase shift range is not wide. It is only suitable for directly trigger...[Details]
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1. Conditions for CPU to access the chip The CPU reads data from external devices by accessing the storage controller. If the CPU wants to access a chip, it needs the following conditions (co...[Details]
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On May 12, Japanese wafer factory SUMCO announced its first quarter results ending March 31, 2022. According to the report, SUMCO's operating income in the first quarter was 100.449 billion yen, a y...[Details]
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According to a post by a netizen from IT Home, OPPO Find X started testing ColorOS 11 yesterday. The system is based on Android 11, has a size of 3.47GB, and the version number is PAFM00PRE_11_H....[Details]
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1. Working principle of Tektronix current probe when testing high frequency As the frequency of the measured current increases, the Hall effect gradually weakens. When measuring a high-frequency AC c...[Details]
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The high-voltage differential probe is a type of probe and is an oscilloscope probe designed using the principle of differential amplification. Mainly used to observe differential signals. Differe...[Details]
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On November 5, Advantech, a global leading embedded design and service company, and Shanghai Zhaoxin (hereinafter referred to as "Zhaoxin"), a leading domestic chip manufacturer, jointly held the "Ch...[Details]
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1 Introduction At present, automotive electronics represented by microcontrollers are widely used in vehicle electronic systems, and automotive control is shifting from electromechanical control sy...[Details]
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While an incandescent lamp behaves as a purely resistive load with self-stabilizing characteristics, an LED requires a current source. The luminous flux produced by an LED is approximately prop...[Details]
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The data of more than 1.3 million customers of online shopping platform PandaBuy has been leaked. The incident is said to be caused by two hackers who exploited multiple vulnerabilities to break ...[Details]
Linux and Android
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