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CAN bus (Controller Area Network) is a widely used fieldbus communication protocol, mainly used in the fields of automobiles, industrial control, etc. In CAN bus communication, the interrupt state ...[Details]
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In the 1970s, the earliest GaP and GaAsP homojunction red, yellow, and green low-luminous efficiency LEDs began to be used for indicator lights, digital and text displays. Since then, LEDs have ent...[Details]
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NXP Semiconductors recently announced the expansion of its ultra-low power crossover application processor product line, adding two new series based on advanced EdgeLock™ security area and innovative...[Details]
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This paper introduces a frequency synthesizer that generates linear frequency modulation signals by rapidly changing the frequency division ratio of the phase-locked loop divider, and analyzes the ...[Details]
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1. Basic knowledge
1.ARM's interrupt priority is divided into hardware priority and software priority
The software priority is composed of preemption priority and response priority.
2. The p...[Details]
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On June 16, a netizen said, "Apple App Store Pudong store temporarily announced its closure. It is said that a customer was upset and smashed all the Macs." According to The Paper, at about...[Details]
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sfr is used to assign a special function register of a microcontroller to a variable, so that the variable can refer to the register in subsequent programs. The usage of sbit is similar to that of ...[Details]
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The overload capacity of thyristors is poor, and short-term overvoltage or overcurrent may cause them to be damaged. Appropriate protective measures should be taken. Overcurrent protection Insert a...[Details]
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Maxim's new Class D audio power amplifiers (MAX9700/MAX9712) have made some important improvements to switch-mode amplification technology, using a unique modulation structure to eliminate the outp...[Details]
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1 Introduction
Software Defined Radio (SDR) is a general hardware platform with openness, standardization and modularity. It uses software to complete functions such as working frequency b...[Details]
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Principle analysis: The signal processing circuit with zero adjustment and full-scale adjustment functions is an AC voltage measuring head. IN+, IN-AC voltage terminals (no positive or negative);...[Details]
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Mitsubishi PLC (Programmable Logic Controller) is a control device widely used in the field of industrial automation. It controls mechanical equipment through programming and has the characteristic...[Details]
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Preface Compared with the 51 MCU, the 52 MCU has a larger internal storage and an additional T2 timer/counter. 1. Brief description of timer 2 1. Function of Timer 2 Timer 2 is a 16-bit time...[Details]
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Recently, Slashleaks, a well-known foreign whistleblower, exposed a group of pictures of new LG mobile phones, which showed that LG may launch the W series of mobile phones. LG W series exposure pi...[Details]
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1 Introduction This article will introduce how to use the USB CDC class for development based on the STM32F4DISCOVERY board, as well as the analysis and solution of the problem of failure when sendin...[Details]