51单片机在全自动倒计时控制器中的应用

Application of Chip Microprocessors 51 in Automatic Count-down Driver

从现场实际出发 ,设计以 5 1系列单片机为核心的全自动倒计时控制器 .介绍实现系统功能所采用硬件组成、特点和工作原理 ,特别对市电掉电保护、时钟脉冲产生和抗干扰措施给出较为详细的叙述 .分析了其软件设计技巧 ,并介绍了针对特定工作环境下做一系列特殊处理 .该系统在实际运行中 ,实现了预期的特定功能 .

Starting from a real worksite point of view, this paper gives a design of automatic count down system based on chip microprocessors 51.The paper introduces the organization of the hardware, the characteristics and the working principle. A particular discussion is made of the protection of the electricity fall, the production of clock impulse and the measurement of anti jamming. The designing skill of software is analyzed. A series of special treatment upon its particular working environment is also discussed .It is proved that the desired specific function is achieved.