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1. Environment construction Proteus8.7 version, and the construction of virtual port number, because Proteus8.7 does not have Bluetooth module, Bluetooth is actually a serial port, we use virtual ser...[Details]
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Different types of objects emit infrared light in specific bands, which are outside the visible light band. Therefore, people can use this specific band of infrared light to detect and track objects. ...[Details]
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Kernel version：2.6.14
CPU architecture：ARM920T
Author：ce123(http://blog.csdn.net/ce123)
1.close function
The above figure illustrates the execution process of close(fd), which mainly in...[Details]
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According to Taiwan media Juheng.com, Wall Street analysts pointed out that after the United States expands its ban on Huawei, Qualcomm may sell mobile phone chips to Huawei next year and benefit fro...[Details]
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According to Bloomberg, people familiar with the matter revealed that TSMC, driven by U.S. customers such as Apple, will provide 4-nanometer chips when its new $12 billion factory in Arizona goes int...[Details]
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In recent years, low dropout regulators (LD0, Low Dropout Regulator), quasi low dropout regulators (QLDO, Quasi Low Dropout Regulator) and very low dropout regulators (VLD0, Very Low Dropout Regula...[Details]
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Although the average stock price of the electronics industry experienced slight fluctuations this week, some analysts said that the fundamentals of the electronics industry are improving. With the ar...[Details]
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With the emergence of high-power LEDs, the life of LEDs and power conversion efficiency have become the main considerations when designing LED lighting systems. Based on Fairchild Semiconductor FAN...[Details]
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On May 30, 2019, Quectel Communications passed the review of the CSRC's Issuance Examination Committee and is about to be listed on the A-share main board. Shanghai Quectel Communications Tec...[Details]
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Nexperia has announced the industry’s first 80 V RET (Resistor Equipped Transistor) family. These new RETs, or “digital transistors,” provide enough headroom for use in 48 V automotive circuit board ...[Details]
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1. MSP430 turns off interrupt nesting by default, unless the general interrupt EINT() is turned on again in an interrupt program; 2. When entering the interrupt program, the general interrupt is alway...[Details]
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Recently, the "Power Grid Ultrafast Long-Duration Magnetic Suspension Flywheel Frequency Modulation System" project of Beijing Honghui International Energy Technology Development Co., Ltd. (hereina...[Details]
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#include reg52.h
#define uchar unsigned char
sbit LED_RED = P2^0;
sbit LED_GREEN = P2^1;
sbit LED_BLUE = P2^2;
//Color value to be displayed
float COLOR_RED = 0...[Details]
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Automatic excitation control of synchronous generators is an important technical means to ensure safe, stable and efficient operation of generators. This article will introduce in detail the role, ...[Details]
Power technology
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