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51 MCU external ROM expansion method
It is strongly recommended that users do not consider external expansion of program memory as much as possible. If expansion is necessary, it can be expand...[Details]
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1. Introduction to UART in S3C2440 UART (universal asynchronous receive transmitter) is used to send and receive serial data and communicate in full-duplex mode. The level standard used by UART is TT...[Details]
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9月5日至11日，辽宁省委副书记、市委书记王新伟率沈阳市友好经贸代表团访问德国、奥地利。代表团深入贯彻习近平外交思想和党的二十届三中全会精神，认真落实习近平主席同两国元首达成的重要共识，扩大友好交流，深化务实合作，实现更高水平更宽领域共赢发展。德国是 ...
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The ARM assembler consists of machine instructions, pseudo-instructions and macro instructions.
1. Symbol definition pseudo-instruction
The symbol definition pseudo-instruction is used...[Details]
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1. Sources and hazards of harmonics
Harmonic wave refers to the amount of electricity contained in the current whose frequency is an integer multiple of the fundamental wave. It generally ...[Details]
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In July 2021, CATL sued AVIC Lithium Battery (now AVIC Innovation) for infringing its battery invention and utility model patents. According to the latest report from Interface News, people familiar ...[Details]
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US scientists say a breakthrough could solve a key problem with electric cars: charging time. The technology could add 320km of range to a car in just 10 minutes, a rate that would require the batte...[Details]
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In C51, what are the rules for function return value passing?
Answer : (1) Parameter passing during calling
There are three cases: when there are less than or equal to 3 parameters, they are pass...[Details]
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1. Instruction execution time test Tested at 160Mhz CPU SystemClock_Config(CPU_CLK_160M); 1.1、GPIO flip test while (1) { GPIOB- DATA &= ~GPIO_PIN_0; GPIOB- DATA |= GPIO_PIN_0; GPIOB- DATA...[Details]
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The U.S. International Trade Commission (ITC) issued an announcement on March 2 local time, announcing its decision to launch a 337 investigation into companies including Samsung Electronics and Moto...[Details]
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There are two main ways to develop ARM applications: one is to develop applications directly on ARM chips without using an operating system, also known as bare metal programming. This developme...[Details]
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Especially for battery-powered systems, power consumption is the primary consideration. We know that there is a power management register PCON inside the microcontroller. The lowest two bits o...[Details]
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This article focuses on the power path characteristics of charger ICs. Power paths often appear under different names, and there are also multiple implementation schemes. System designers may the...[Details]
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Nowadays, young people in cities work and live in a fast-paced way every day, as if they are living in a pressure cooker. As a result, many young people are afraid to talk about money, marriage, an...[Details]
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Atmel introduces three new AVR microcontrollers with 10-bit ADCs Atmel today announced three new members of its AVR(R) Flash microcontroller family for battery chargers, sensor terminals and low-end m...[Details]
Power technology
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