2007•Electronic TechnologyRequires access
Design of the Electronic Perpetual Calendar based on real-time clock chip
Shu Wang
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Abstract
This Electronic calendar uses the AT89S52 microcontroller as the core for the control. Time Circuit which is constituted by Dallas's DS12C887A real-time clock chip achieved a time and date display,it increased functionality for the temperature display and the whole point timekeeping. This paper discusses the hardware circuit of the system,principle in detail,and gives the flow chart of the software design and the major source code.