英语翻译近年来，单片微型计算机以其强大的生命力飞速发展，在工业控制、智能仪器仪表、智能化设备和家用电器等领域得到了广泛的

英语翻译
近年来，单片微型计算机以其强大的生命力飞速发展，在工业控制、智能仪器仪表、智能化设备和家用电器等领域得到了广泛的应用，因而引起了各行各业的极大关注，有着广阔的发展前景。论文设计的是一个单片机控制多功能信号发生器。其设计目的是使学生通过这一实践环节，增强单片机扩展接口设计及其实际应用能力。本系统的软件可运行于DOS及Windows系列操作系统平台。完成的主要功能设计有：单片机所需平稳电压的获得，8K字节固化程序存储能力，七段数码显示器，3×4的12位矩阵键盘，波形产生与电压变换功能，具有8位精度的D/A转换功能，时钟电路与复位电路以及完成相关的软件设计。本系统以8031单片机为核心，配置相应的外围接口电路，用汇编语言开发，组成的一个单片机控制多功能信号发生器。硬件电路设计包括三部分内容：一是电源部分设计；二是系统扩展，即单片机内部的功能单元（如ROM、I/O、定时/计数器、中断系统等）容量不能满足应用系统要求时，必须进行片外扩展，选择适当芯片，设计适当电路；三是系统配置，即按照功能要求配置外围设备，如键盘、D/A转换等。系统中的应用软件是根据系统的功能要求而设计的，可靠地实现了系统的各种功能要求。

In recent years,single-chip micro-computer with its strong vitality of rapid development in industrial control,smart instrumentation,intelligent equipment and household appliances,and other fields has been widely used and therefore aroused great concern to all walks of life,with wide Development prospects.Papers design is a microprocessor controlled multi-function signal generator.The design objective is to enable students through this practice,enhance the expansion of SCM and its practical application interface design capacity.The system software can run on DOS and Windows family of operating systems platform.Complete the design of the main functions:microprocessor voltage required for smooth access,8 K bytes curing process storage capacity,Qiduan digital display,3 × 4 of 12 matrix keyboard,waveform generator and voltage transformation functions,with eight Accuracy of D / A converter functions,and reset the clock circuit circuit and the completion of related software design.SCM 8031 to the present system as the core,configure the appropriate external interface circuit,with assembly language development,consisting of a microprocessor controlled multi-function signal generator.Hardware circuit design includes three parts:First,the power of the design of the system is expanded,that is the function of internal microcontroller units (such as ROM,I / O,timing / counter,interrupt system,etc.) capacity can not meet the application requirements The need for expansion outside the film,select the appropriate chips,the design of appropriate circuit; Third,the system configuration,that is,in accordance with the functional requirements of targeted peripherals such as keyboards,D / A converter,and so on.System of software is based on the function of the system requirements and design,to achieve a reliable system of functional requirements.