Microcontroller参考.doc

Microcontroller H.P.A.P. Jayaward, Student Member, IEEE, H.W.K.M. Amarasekara, Student Member, IEEE, P.T.S. Peelikum, W.A.K.C. Jayathilaka, S.G. Abeyaratne, Member, IEEE and S.D. Dewasurendra Abstract-In recent years, as computer penetration in the social field and the development of LSI, MCU application is constantly deepening, because of its powerful function, small size, low power consumption, cheap, reliable, easy to use, etc. therefore particularly suitable for control of the system and, more widely used in automatic control, intelligent instruments, instrumentation, data acquisition, and home appliances and other fields. As one of the main branch of microcomputer, microcontroller in the structure of the biggest feature is the CPU, RAM and ROM memory, timer and multiple I / O interface circuit integrated on a VLSI chip. The composition and function from its point of view, a single chip is actually a computer. This design is the use of MSC-51 Series Microcontroller AT89C51 as the central device in the design of serial communication system. Proteus and Keil structures in the simulation platform to assembly language as a programming language for simulation. System has realized more than serial communication, use of a master-slave, the host sends data, receives data from the machine and displayed under the agreement. I. INTRODUCTION Modern computer technology, industrial revolution, the world economy from the capital into the economy to knowledge economy. Field in the electronic world, from the 20th century into the era of radio to computer technology in the 21st century as the center of the intelligent modern era of electronic systems. The basic core of modern electronic systems are embedded computer systems (referred to as embedded systems), while the microcontroller is the most typical and most extensive and most popular embedded systems. First, radio has created generations of excellence in the world Fifties and sixties in the 20th century, the most r