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1. Double-click the icon to open the Keil software 2. Click - on the menu bar 3. Save the new project to a folder 4. Choose a CPU chip, here STC89C52RC corresponds to Philips' P89V51RD2 5. ...[Details]
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At the 2020 North American CES, there is a so-called "International Pavilion". However, what's interesting is that in this "International Pavilion", most of the exhibitors are from China, and many Ch...[Details]
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Oscillator circuit 1 is a circuit of an audio square wave oscillator composed of 1/4 LM339 . Changing C1 can change the frequency of the output square wave. In this circuit, when C1=0.1uF, f=53Hz; w...[Details]
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1. Two-way (two-way) and three-way (three-way) speaker systems
Two-way
Speaker
The system structure is simple and the cost is relatively low. In order to solve the lack of this mid-ran...[Details]
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1. SPI interface of AVR microcontroller The SPI (Serial Peripheral INTERFACE) bus system is a synchronous serial peripheral interface that allows the MCU to communicate and exchange data with various...[Details]
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Recently, Zhengye Technology stated in an institutional survey that the company's testing business has successfully expanded into the semiconductor industry, and it has officially signed an equipmen...[Details]
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Recently, Jiangsu Super Star Semiconductor Co., Ltd. (hereinafter referred to as "Super Star") completed a round of A+ financing worth hundreds of millions of yuan, led by CMB International, followed...[Details]
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When I first started learning about each CPU, I would first study the corresponding assembly instructions. I felt that this would allow me to quickly experience the hardware principles of the CPU, whi...[Details]
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With the basic maturity of EU hydrogen fuel cell (FCH) technology and the positive role of hydrogen fuel cells in renewable energy generation (wind and solar energy) energy storage, the EU Hydrogen...[Details]
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The S3C2440 originally connected two 32M SDRAM chip selects to nGCS6. Now it has been changed to two 64M SDRAM chip selects also to nGCS6.
The software modifications are divided into four majo...[Details]
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This design uses the digital radio chip Si4730 to provide a good solution for integrating FM functions into intelligent systems based on WinCE6.0. This solution implements functions such as full-f...[Details]
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1 Introduction
The DC current source is a widely used electronic instrument. For situations where the output current is required to be adjustable, the simplest and most practical method is to achiev...[Details]
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Smart cold chain, direct delivery from the origin to ensure food freshness; smart factory, full automation of management and production; smart air conditioner, you can control it on the way home from...[Details]
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Introduction: This program has been tested on the experimental board ATMEGA16. If you see data on the SCL and SDA signal lines on the oscilloscope, you can transfer the data to your own circuit and u...[Details]
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Crank press is a common metal forming equipment, widely used in automobile, aviation, shipbuilding, machinery manufacturing and other industries. It has the characteristics of simple structure, con...[Details]
MCU
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