基于AT89S52的定时器设计  

AT89S52 based timer design

作　　者：杨垒[1] 于复生[1] 郭梅静[1] 

机构地区：[1]山东建筑大学机械电子工程学院,山东济南250101

出　　处：《山东建筑大学学报》2006年第5期463-464,470,共3页Journal of Shandong Jianzhu University

摘　　要：介绍了以AT89S52单片机为控制核心的高精准定时器。充分利用AT89S52单片机高密度、非易失性存储、功耗低、价格低廉等特点,并配以低功耗字符液晶JHD-161作为其显示部件,从而达到了使定时器低功耗、精确定时及延时的目的。给出了硬件电路图设计及主程序流程图,阐述了软硬件设计过程中关键技术的处理。The design of precious LCD timer system is mainly introduced. By fully making use of the strong characteristics of AT89S52, as high precision, long-time data retention, low power and price, and also, the timer displayed by JHD-161 LCD with low power supplying, the timer system reaches the goal of low power with precious timing. Hardware circuits and main program diagram are presented, and the processes of key techniques in design of hardware and software are described.

关 键 词：定时器 AT89S52 LCD 

分 类 号：TN791[电子电信—电路与系统]