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At 10 am on October 10, Lanjun New Energy Technology Co., Ltd. and Kaile Environmental Technology (Shanghai) Co., Ltd. formally signed a strategic cooperation agreement at Kaile Technology Industri...[Details]
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This article takes the calling call initiated by MS as an example to explain the signaling connection process required to realize a call in the GSM system
. Based on the three-layer connection...[Details]
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From the ZTE incident last year to today's Sino-US trade dispute, one word has always been at the center of the storm of public opinion: chips. Behind the voice, there are also many secrets about chi...[Details]
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Passive Z-match, balun and harmonic filters for sub-1GHz wireless MCUs ST has released nine chip-scale passive RF balun ICs, including antenna impedance matching and harmonic filtering for the STM3...[Details]
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Aiming at the battery power management problem of most embedded systems, a unit circuit module for power management of embedded systems, especially those used in handheld and portable devices, is des...[Details]
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Download the schematic used in this program: click here . The microcontroller chip used is stc89c51; just find the schematic diagram of the digital tube part. This is the circuit diagram of the enti...[Details]
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1. Research background and significance
With the rapid development of the national economy, the number of motor vehicles, especially private cars, has increased dramatically, which has made traffic c...[Details]
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High brightness light emitting diodes (HBLED) combine the advantages of high output, high efficiency and long life. Manufacturers are developing devices that can achieve higher luminous flux, longer ...[Details]
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0 Introduction
With the development of power electronics technology, the harmonic problems caused by power electronics devices have had a great impact on the safety, stability and economic operation...[Details]
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For example, if an amplifier has no output, and one of the base and emitter voltages is 0v (measured on the circuit board), does that mean that the transistor is broken? From the given conditions, it...[Details]
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The return method varies depending on the exception type. The exception causes the next instruction to be read from the corresponding vector table entry.
1 Processor response to exceptions
...[Details]
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1 Introduction
In recent years, with the development of high-power switching power supplies, the requirements for controllers have become increasingly higher, and the digitization and intellig...[Details]
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introduction
With the rapid development of modern communication technology and network technology, Ethernet technology has become more and more mature, especially Web technology based on TCP/IP com...[Details]
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In 2020, industries such as semiconductors and displays will continue to grow rapidly. At the same time, domestic investment will continue... First, take Nanjing and Hefei in the Yangtze River Delta ...[Details]
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To use a certain type of LCD on an ARM board, you often have to modify the LCD driver or device tree, which is very inconvenient.
In ARM40-A5, we store the configuration instructions of common...[Details]
PCB Design
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