Abstract
In recent years, with computers in the infiltration and the
development of large-scale integrated circuits. SCM
application is steadily deepening, as it has strong
function, small size, low power dissipation, low prices,
reliable, easy to use features, it is
particularly suited to and control of the system,
increasingly widely used in various fields.
This article describes an couputer bell system is
single-chip microcomputer (AT89C51) as the core, Can
realize daily clock display, LCD1602 LCD display, use
DS1302 real-time clock calendar chips clock/calendar, at
the same time use the basic function of the temperature
sensor DS18B20 measuring environmental temperature ,but
also has the clock adjustment/date.Describes the
application of Proteus's ISIS software of the electronic
single-chip system clock to achieve the design and
simulation methods in details.The method can not only test
the property of the system precisely,but also improve
development efficiency and reduce development cost,which
values in popularity.
Key words: AT89C51; LCD1602;DS1302;DS18B20