汉译英 单片机摘要 要人工翻得

Question

时钟定时控制器

摘 要

单片计算机即单片微型计算机（Single-Chip Microcomputer ）,是集CPU ,RAM ,ROM ,定时，计数和多种接口于一体的微控制器。近年来随着计算机在社会领域的渗透和大规模集成电路的发展，单片机的应用正在不断地走向深入而51 单片机是各单片机中最为典型和最有代表性的一种。由于它具有功能强，体积小，功耗低，价格便宜，工作可靠，使用方便等特点，因此特别适合于与控制有关的系统，越来越广泛地应用于自动控制，智能化仪器，仪表，数据采集，军工产品以及家用电器等各个领域，单片机往往是作为一个核心部件来使用，在根据具体硬件结构，以及针对具体应用对象特点的软件结合，以作完善。这次毕业设计通过对它的学习，应用，从而达到学习、设计、开发软、硬件的能力。随着以计算机为轴心的各种各样信息处理装置的诞生，为适应这种新形势，信息家电，网络终端，广播-通信等用途的LCD市场也将迅速扩大，而且如今LCD发展方向不仅在于大屏幕，而且在中小屏幕方面，例如汽车导航系统，摄像机，数字式照相机，便携式电视，PDA(个人数字助理)，娱乐/游戏机，摄影机等有着进一步的发展。 液晶显示器(LCD)具有功耗低、体积小、重量轻、超薄等许多其他显示器无法比拟的优点，近年来被广泛用于单片机控制的智能仪器、仪表和低功耗电子产品中。LCD可分为段式LCD、字符式LCD和点阵式LCD。其中，段式LCD和字符式LCD只能用于字符和数字的简单显示，不能满足图形曲线和汉字显示的要求；而点阵式LCD不仅可以显示字符、数字，还可以显示各种图形、曲线以及汉字、动画，并且可以实现屏幕滚动、反转、闪烁等功能，用途十分广泛。本文介绍单片机AT89C52结合74LS244设计时钟定时控制器实现的方案。74LS244为三态输出的八组缓冲器和总线驱动器。本系统将单片机AT89C52内部时钟读出并通过四位一体七段数码管(LED)显示出来,通过按键设定的时间来改变系统的报警时间，单片机依据设定的报警时间做出报警处理，从而实现了系统的智能化。该系统是具有定时和控制功能的产品，可根据不同需要用于各种场合。

关键词：单片机89C52 电子时钟 缓冲器和总线驱动器74LS244 液晶显示器LED

Answer 1

Single-chip micro-computer computer-chip (Single-Chip Microcomputer), is a CPU, RAM, ROM, timing, counting and multiple interfaces in one microcontroller. In recent years, with the field of computer penetration in the community and the development of large-scale integrated circuits, single-chip applications is steadily moving toward depth and 51 single-chip single-chip is the most typical and most representative one. Because of its strong functions, small size, low power consumption, cheap, reliable and easy to use and so on, it is particularly suited to control systems and, more widely used in automatic control, intelligent instruments, meters, data acquisition, military products, as well as household appliances and other fields, often single-chip microcomputer as a core component to use, in accordance with the specific hardware architecture, as well as application-specific features of the software object to be perfect. The graduation project through its study and application to achieve the study, design, development hardware and software capabilities. With a variety of computer-axis of the birth of information processing devices, in order to adapt to this new situation, information appliances, network terminals, radio - communications, such as the use of LCD market will expand rapidly, and now not only the development direction of LCD to the big screen, but also in small and medium-sized screen, such as car navigation systems, video cameras, digital cameras, portable TV, PDA (Personal Digital Assistant), entertainment / video game consoles, cameras, etc. have further development. Liquid Crystal Display (LCD) with low power consumption, small size, light weight, ultra-thin displays and many other advantages unmatched in recent years been widely used in single-chip smart control devices, instrumentation and low-power electronic products. LCD can be divided into Segment LCD, character-type LCD and dot matrix LCD. Among them, the piece character LCD and LCD-style characters and figures can only be used for simple display, can not satisfy the graphics curve and show that the requirements of Chinese characters; and dot-matrix LCD can display characters, numbers, can also display a variety of graphics, curve as well as Chinese characters, animation, and can scroll the screen, reverse, blinking and other functions, a wide range of uses. This article describes the design of single-chip microcomputer AT89C52 combination 74LS244 clock timing of the program controller. 74LS244 tri-state output for the eight sets of buffers and bus drivers. AT89C52 single-chip microcomputer of the system will read out the internal clock and through the seventh four-in-one digital tube (LED) display, through the button to set the alarm to change the system time, single-chip based on the time to set alarm alarm processing, thus realizing the intelligent system. The system is a function of timing and control products, according to the different needs for various occasions.

累死人了！要选我！

Answer 2

真的好难.

要专业的才行了

Answer 3

这也太专业了吧 要是交给老师看在线翻译一下绝对没有问题