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1、With the development and progress of material science, technology, computer technology, circuit system toward the development of highly integrated direction. CPU manufacturing technology, towards a comprehensive, technical, practical development. Such as CPU bits from the 4, 8...... Development to the 32 bit machine, speed of operation from 8 MHz, 32 MHz...... To 1.6GHz. Can be said to be change rapidly development. The application of single chip microcomputer in the control system is more and more common. SCM control system is based on the microcontroller (CPU) as the core components, the extension of some external interface and equipment, SCM industrial control machine, mainly used for industrial process control. To the MCU system design must have some basic knowledge of hardware; secondly, need to have the ability to design software, can according to the requirement of the system, the flexibility to design the program; third, with the integrated use of knowledge. Finally, we must master the process performance measurement method of production process and the measured parameters, dynamic, static characteristic as well as the controlled object, and sometimes even give the mathematical model of the controlled object. Development and application of SCM must be based on MCU development system to complete, in other words, no single chip microcomputer development system, SCM can not be applied. This system is the single board system with 8031 as the core. So it is the development system is the typical application system of MCS-51 MCU, MCS-51 chip is soft, the hardware knowledge. It includes data storage expansion, program memory expansion, I/O serial port application, digital display circuit. This paper discusses the design and implementation of LED digital tube as the output device of single chip computer control system. First to draw schematic and PCB circuit diagram of the working environment of PROTELL33 in detail, and then the analysis of the hardware structure and working principle of the 8031, 74LS373 are analyzed, the working principle of the LED digital tube display are described in detail. Based on the design of hardware circuit. Finally using the simulator for debugging of the hardware circuit and software. Thus the completion of the use of 8031 the development of infrared remote control signal used to control circuit and decoding. Is divided into four chapters, the first chapter: preliminary understanding, the second chapter of infrared remote control infrared remote control system, the third chapter, the fourth chapter introduction and application of PROTEL99SE infrared remote control signal decoding design principle of the control circuit. Keywords: 8031 single output control display driver coding and decoding。
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