基于单片机系统多功能时钟.docVIP

摘 要 数字钟在日常生活中最常见，应用也最广泛。随着科学技术不断地发展，人们对于数字钟的要求也在不断地提高，而传统的数字钟，多数只能显示小时、分钟等信息，功能单一，而且大都采用LED数码管作为显示器件，功耗大，不能令消费者满意。 本文以单片机AT89S52为控制核心，采用DS1302为实时控制芯片，以液晶显示器作为显示部件，采用ISD4004语音集成芯片作为语音录放实现部分，利用4*4键盘作为控制部分，设计一个多功能数字时钟，详细叙述了系统硬件、软件的具体实现过程。论文重点阐述时钟系统硬件中键盘模块，时钟模块、语音模块、液晶显示模块，光控模块的模块化设计与制作；软件中同样采用模块化的设计，包括键盘模块、时钟模块、语音模块、时间调整及定时模块设计，并采用简单流通性强的C语言编程实现。本设计实现了显示年、月、日、小时、分钟、秒、星期的功能，按键调整时间，设定闹铃、重要事件定时的功能，重要事件语音播报的功能，播报时间和日期的功能。该系统功能实用，实现方法简单，具有工作稳定、使用方便等特点,可以广泛应用于人们日常生活中。 关键字：单片机AT89S52；数字钟；LCD1602；DS1302；ISD4004。 Abstract A digital clock is very common and widely used in daily life. With the continuous development of science and technology, peoples requirements for digital clock are constantly improving. However, the traditional digital clocks most can only show some messages such as hours, minutes, etc. They have single function, and most use LED digital tube as display device, also have high power consumption, so they cannot make customer satisfaction. With single-chip chips AT89S51 as control core, this paper use DS1302 as the generation of a clock, LCD display as display part, and ISD4004 as recording and playback, through 4 * 4 keyboard as control section, to design a multi-function digital clock, and describes the specific implementation process of the systems hardware and software in detail. The paper focuses on the modular design and production of the key module, clock module, voice module, LCD module, and light control modules of the clock systems hardware. The software also uses modular design, including the design of keyboard module, clock module, voice module, and time adjusting and timing module, and use the simple and strong liquidity C-language to program. This design implements the functions of displaying year, month, day, hours, minutes, seconds and weeks, and buttoning to adjust the time, setting alarm, timing important events, broadcasting important events with voice, and broadcasting time and date. The systems functions are practical, and its realization m