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Four bit binary subtraction counter
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Deepen the understanding and thinking of the textbook, and verify the correctness of the theory through design and verification. Master the analysis, design method and application of JK Trigger and counter circuit. Familiar with VHDL language, simulation environment and download method. Familiar with Multisim environment, learn to use logic symbols and components to draw logic circuit diagram.
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Design of wireless setting electronic calendar based on MCU
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Proteus is an EDA tool software published by lab center electronics company. It not only has the simulation function of other EDA tool software, but also can simulate MCU and peripheral devices. Keil is a professional manufacturer of embedded development tools. Keil software company's products include c compiler, macro compiler, real-time kernel, debugger, simulator and other simulation development devices. This design is based on 51 series of MCU electronic calendar design. The circuit uses AT89C52 microcontroller as the core, low power consumption; uses DS1302 clock chip to realize the clock, DS1302 chip is a high-performance clock chip, high precision; uses LCD display, LCD display has powerful display function, can display a large number of text, graphics, display diversity, clear visible; uses ordinary trigger button to modify the time; program & nbsp; The preface is written in C language. After all the programs are written, debugging is done in keil software. After confirming that there is no problem, simulation is carried out in Proteus Software. To sum up, this calendar has many advantages, such as easy to read, intuitive display, diverse functions, simple circuit, low cost and so on. It is in line with the development trend of electronic instruments and has broad market prospects.
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