| 可编程多用途倒计时系统的设计 |
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| 引用本文： | 卫勇,王满仓,闫洪,赵雅芸.可编程多用途倒计时系统的设计[J].天津农学院学报,2007,14(2):37-40. |
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| 作者姓名： | 卫勇 王满仓 闫洪 赵雅芸 |
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| 作者单位： | 天津农学院,机电工程系,天津,300384 |
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| 基金项目： | 天津农学院学生创新基金 |
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| 摘 要： | 本文介绍了以单片机STC89C54RD 为核心的倒计时系统的基本组成,重点阐述了时钟电路、点阵式LED显示电路、ISP在系统编程和倒计时显示内容的设置等关键技术。实践证明,基于上述技术研制的天津农学院本科教学评估倒计时系统具有结构紧凑、价格低廉、可靠性高等特点。
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| 关 键 词： | 倒计时系统 单片机STC89C54RD ISP(在系统编程) |
| 文章编号： | 1008-5394（2007）02-0037-04 |
| 修稿时间： | 2007-02-01 |
Design of All-purpose Programmable Conversely Accounting Time System |
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| WEI Yong,WANG Man-cang,YAN Hong,ZHAO Ya-yun.Design of All-purpose Programmable Conversely Accounting Time System[J].Journal of Tianjin Agricultural College,2007,14(2):37-40. |
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| Authors: | WEI Yong WANG Man-cang YAN Hong ZHAO Ya-yun |
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| Institution: | Department of Mechanic and Electronic Engineering, Tianjin Agricultural University, Tianjin 300384, China |
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| Abstract: | A Conversely Accounting Time System based on STC89C54 RD was introduced in this paper.The clock circuit designing,dot-matrix LED display circuit designing and ISP technique were mainly elaborated.Practices proved that the Conversely Accounting Time System for TJAU(Tianjin Agricultural University)undergraduate instruction evaluation based on the technique has many advantages,such as tight structure,low price and high credibility. |
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| Keywords: | Conversely Accounting Time System STC89C54RD ISP(In-System Programming) |
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