摘要
设计了一种以 AT89C51为核心、结构紧凑和功能齐全的多用途定时器。它可通过小键盘输入任意定时时间 ,最大可定时 1 0 h,能满足各种层次答辩、各种赛事以及某些特殊定时需要。文章对其结构作了介绍。
This paper devises a all purpose timer bases on the AT89 C51, it has advantages of the compact configuration and complete function, besides it is capable of timing 10 hour, and adapts oneself to diversified need. It has function of the displaying count down and can provide function of sound light warning. The paper presents its configuration.
出处
《电子工程师》
2000年第8期12-13,24,共3页
Electronic Engineer
