基于MSP430多功能测试仪设计毕业论文文档.docVIP

基于MSP430多功能测试仪设计 摘 要 设计中讲述了基于MSP430F169 单片机的多功能测试系统。 MSP430F169单片机拥有丰富的片内外设，包括A/D、D/A、定时器、USART、比较器、硬件乘法器、内部温度传感器等。在充分利用单片机内部资源的基础上，对不同的参数测试提出各自详细的设计方案并进行了理论分析与实验验证，并详细介绍了该系统的电路与实现过程，以研制开发一种适于教学实验的测试器材。该测试仪不但具有快速、准确、可靠、多功能化的特点，而且性价比高。 接着介绍测试仪的主要实现的功能： 脉冲发生：可以同时产生四路周期与占空比都可调的脉冲。 脉冲测量：可以对方波脉冲的周期、占空比与个数进行测量。 AD采样功能：可以通过此测试仪与PC机实现对采样数据的显示。 模拟电压发生器功能：可以产生0—3V内任意的电压。 MSP430多功能测试仪的设计分为硬件设计与软件设计。 关键词： 脉冲发生 ； 脉冲测量 ； MSP430单片机 MSP430 multifunctional device design ABSTRACT A Multipurpose Measuring system which based on the MSP430F149 Microprogrammed Control Unit is narrated by this article . The MSP430F149 Microprogrammed Control Unit has rich internal equipment, including A/D,D/A, USART, comparator , hardware multiplier, internal temperature sensor and so on. To different parameters’test, this paper presents respectively detailed design methods which are analyzed theoretically and proved practicable, and describe the system’s outer extended circuit and realization process, thus to develop a test instrument good for teaching. This instrument not only has the feature of highspeed ,accuracy, stability and multifunction , but also has a perfect ratio of quality/price. Then , The article depicts the functions of The Multipurpose Measuring system . They are Occurring of pulse : can occur four pulse which period and amounts can be amended. Measuring of pulse : can measure the pulse’s period and amounts. Logic oscillograph : can display the signal in the PC screen. Occurring of analog voltage :can occur the voltage whose value is from 0V to 3V. The design of the Multipurpose Measuring system is composed of two parts:(1) the hardware design and; (2) the software design .In this paper the hardware and the software design is mainly discussed. Key words : Occurring of pulse ; Measuring of pulse ; MSP430 MCU 目 录 引言……………………………………………………………………………………5 第1章 概述 …………………………………………………………………………6 1.1智能仪器的发展概况6 1.2智能仪器发展趋势6 1.3智能仪器的工作原理7 1.4课题背