基于单片机的自动报时系统设计_毕业论文外文翻译.doc

Tell the time a system design according to the auto of list slice machine Abstract ：Especially appear and live the change of bringing the root for mankind with the large scale integration along with the quick development of electronics technique. From it is list slice the machine is technical of applied the product has already walked into thousand 10000. The emergence of the electronics ten thousand calendars brings peoples life of many conveniences. Automatically tell the time the system is used of the single slice of machine chip is AT89 C51 chipses, in addition still include: DS1302 chips, crystal flap electric circuit and reset the electric circuit composing list slice machines least application system, there is also independent type key electric circuit, the dynamic state shows an electric circuit etc.. It not only can carry out various function of number electronics clock, if have to compare, adjust, in fixed time, alarm clock etc. function, and can also carry out the function that the fixed-point tells the time. Key words ：MCU,The single slice of machine makes bell clock, code, segment code, show Foreword: Actually and always the clock can provide second, cent, , the day, week, month and year are small can automatically adjust, and have leap year repair function with 31 weathers for a month. This design is still additional the fixed-point tells the time of function, thus and further completed automatically a design of telling the time the system. In brief described the work principle of hardware system first in the text, and attached diagram with the design frame of the hardware system, discuss this graduation design connects the function and work process that a peoples technique and each one connect a people mold piece various hardware applying, and concrete described to circumscribe electric circuit to connect of soft, the hardware adjust to try. Single slice of machine total design way of thinking (1) Design minimum hardware system of a single slice of ma