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After all this trouble, I still can't even write a program for a matrix keyboard
do
{
i=(i 1|i 7);
PORTD=i;
DDRD=0X0F;//
key=PIND;//No matter how DDxn is configured, th...[Details]
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The serial port is a commonly used data transmission interface. The STM32F103 series microcontroller has a total of 5 serial ports, of which 1-3 are universal synchronous/asynchronous serial interfac...[Details]
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1. Project introduction In order to improve the real-time and accuracy of bus stop information, it is convenient for passengers to know the bus arrival information in time, thereby improving the conv...[Details]
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Mitsubishi servo drive may stop working due to improper operation or equipment failure. At this time, the cause of the failure should be confirmed according to the Mitsubishi servo drive alarm code...[Details]
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Working principle and structure of intelligent vortex flowmeter
1. Working principle
A vortex generator (baffle body) is set in the fluid, and regular vortices are generated alternately from b...[Details]
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Let you fully understand the characteristics and identification techniques of full-color LED display. 1. Main features of full-color LED display Full-color LED display is a type of LE...[Details]
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Automotive wiring harnesses are generally divided into two types: main wiring harnesses and small wiring harnesses. With the development of new energy vehicles, automotive wiring harnesses can be div...[Details]
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1 Introduction In the power system, voltage and frequency are two important parameters that reflect the power quality of the power system. At the same time, in the relay protection industry, voltag...[Details]
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1. Introduction
Due to the good programmability and superior performance of FPGA, the number of embedded systems using FPGA chips in LCD splicing screens is increasing rapidly, especially in t...[Details]
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军事与国防应用极大地受益于数字信号处理器( DSP )，其广泛应用于雷达、软件无线电( SDR )、灵巧弹药与目标探测系统、电子战应用、飞机成像以及众多其它应用。 DSP 借助其完美架构提供的精确处理能力可以显著提高性能。关键 DSP 功能包括实时信号处理、超高吞吐量与可重编程功能。本文介绍了如何采用高性能四倍数据速率(QDR)SRAM而使整体DSP系统性能至少提高两倍(与使...[Details]
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The long tail effect is an important economic principle, which can be simply described as "small profits and big markets". From the perspective of people's needs, most of the demands are concentr...[Details]
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1. Allocation of study hours 1 hour. 2. Experimental Purpose 1. Learn to use the DC voltage and DC current ranges of the multimeter to measure DC voltage and current respectively. 2. Learn to use DC ...[Details]
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Intel recently announced the list of innovative teams for the third phase of the Intel AI Top 100 Innovation Incentive Program. After layers of screening and strict control, 16 outstanding innovation...[Details]
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Infineon Technologies AG released its performance data for the third quarter of fiscal year 2021 (ending June 30, 2021). Profitability and free cash flow are in good momentum, and revenue is rising ...[Details]
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In the final analysis, the development of single-chip microcomputer programs depends on diligent study, more practice, and more accumulation. There are too few people like Newton and Einstein in this ...[Details]
Microcontroller MCU
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