【正文】 安徽工程大學(xué)機(jī)電學(xué)院畢業(yè)設(shè)計(jì) 1 基于 DSP2812 的實(shí)驗(yàn)開發(fā)板設(shè)計(jì) 摘 要 本設(shè)計(jì)是 DSP（ 2812） 最小系統(tǒng)設(shè)計(jì) ,DSP 是一門涉及許多學(xué)科而又廣泛應(yīng)用于許多領(lǐng)域的新興學(xué)科。 DSP 指的是數(shù)字信號(hào)處理器。數(shù)字信號(hào)處理器是一種適合完成數(shù)字信號(hào)處理運(yùn)算的處理器。 20 世紀(jì) 60 年代以來(lái)，隨著計(jì)算機(jī)和信息技術(shù)的飛速發(fā)展 ， DSP技術(shù)應(yīng)運(yùn)而生并得到迅速的發(fā)展。在過(guò)去的二十多年時(shí)間里，數(shù)字信號(hào)處理已經(jīng)在通信等領(lǐng)域得到極為廣泛的應(yīng)用。 數(shù)字信號(hào)處理是利用計(jì)算機(jī)或?qū)Ｓ锰幚碓O(shè)備，以數(shù)字形式對(duì)信號(hào)進(jìn)行采集，變換，濾波，固執(zhí)，增強(qiáng)，壓縮，識(shí)別等處理，已得到符合 人們需要的信號(hào)形式。數(shù)字信號(hào)處理是以眾多科學(xué)為理論基礎(chǔ)的，它所涉及的范圍及其廣泛。在科學(xué)領(lǐng)域，微積分，概率統(tǒng)計(jì)，隨機(jī)過(guò)程，數(shù)值分析等都是數(shù)字信號(hào)處理的基本工具。與網(wǎng)絡(luò)理論，信號(hào)與系統(tǒng)，控制論，通信理論，故障診斷等也密切相關(guān)，可以說(shuō)，數(shù)字信號(hào)處理是把許多經(jīng)典的理論體系作為自己的理論基礎(chǔ)，同時(shí)又使自己成為一系列新興學(xué)科的理論基礎(chǔ)。 DSP 主要應(yīng)用在數(shù)字信號(hào)處理中，目的是為了能夠滿足實(shí)時(shí)信號(hào)處理的要求，因此需要將數(shù)字信號(hào)處理中的常用運(yùn)算執(zhí)行的盡可能快。這就決定了 DSP 的特點(diǎn)和關(guān)鍵技術(shù)。適合數(shù)字信號(hào)處理的技術(shù)： DSP 包涵乘法器，累加器，特殊地址發(fā)生器，領(lǐng)開銷循環(huán)等；提高處理速度的技術(shù)：流水線技術(shù)，并行處理技術(shù)，超常指令等。 DSP 對(duì)元件值的容限不敏感，受溫度、環(huán)境等外部參與影響??；容易實(shí)現(xiàn)集成；VLSI 可以時(shí)分復(fù)用，共享處理器；方便調(diào)整處理器的系數(shù)實(shí)現(xiàn)自適應(yīng)濾波 ； 可實(shí)現(xiàn)模擬處理不能實(shí)現(xiàn)的功能：線性相位、多抽樣率處理、級(jí)聯(lián)、易于存儲(chǔ)等；可用于頻率非常低的信號(hào)。 關(guān)鍵詞 ： 典型特征；體系結(jié)構(gòu)；程序流程 王 輝：基于 DSP2812 的實(shí)驗(yàn)開發(fā)板設(shè)計(jì) 2 The experimental development board design based on DSP2812 Abstract This design is the DSP (2812) Minimum system design, DSP is a widely used but many disciplines involved in many areas of emerging disciplines. We often say that the DSP refers to the digital signal processor. Digital Signal Processor is a plete crosssignal processing for the processor. Since the 60s of the 20th century, with the puters and the rapid development of information technology, DSP technology and the rapid development emerged. In the past twenty years time, digital signal processing in munications and other fields has been very widely used. Digital signal processing is to use a puter or dedicated processing equipment to collect the signal in digital form, transform, filter, stubborn, enhancement, pression, recognition processing needs of the people has been the signal form. Digital signal processing theory is based on a number of sciencebased, its scope and wide. For example, in science, calculus, probability and statistics, stochastic processes, numerical analysis, digital signal processing are the basic tools. And work theory, signals and systems, control theory, munication theory, fault diagnosis, etc., are closely related, can be said that digital signal processing is to many classical theoretical system as its theoretical basis, but also to bee a new discipline theoretical basis. DSP is mainly used in digital signal processing, designed to meet realtime signal processing requirements, requiring digital signal processing of mon operations performed as quickly as possible. This determines the DSP features and key technologies. Suitable for digital signal processing techniques: DSP indulgence multiplier, accumulator, special address generator, leading overhead loops。 improve the speed of the technology: pipelining, parallel processing, exceptional instruction and so on. DSP of the ponent value of tolerance is not sensitive to temperature, and environment outside involvement affect small。 easy integration。 VLSI can be timedivision multiplexing, shared processor。 facilitate the adjustment of the processor factor to achieve adaptive filter。 to analog processing can not Implementation of functions: linear phase, multirate processing, cascade, easy storage。 can be used to frequency of very low signal. Keywords: Typical characteristics。 Architecture。 Program flow 安徽工程大學(xué)機(jī)電學(xué)院畢業(yè)設(shè)計(jì) 3 目 錄 基于 DSP2812 的實(shí)驗(yàn)開發(fā)板設(shè)計(jì) ........................................................................................... 1 引 言 ........................................................................................................................................ 6 第 1 章 緒論 .............................................................................................................................. 7 課題背景及實(shí)際意義 ...................................................................................................... 7 DSP 芯片 的國(guó)內(nèi)發(fā)展概況 .............................................................................................. 7 本課題的主要研究?jī)?nèi)容 .................................................................................................. 8 第 2 章 的安裝 與 配置 ................................................................................................ 9 系統(tǒng)的安裝 ......................................................................................................... 9 仿真器的安裝 ................................................................................................................... 9 系統(tǒng)的配置 ....................................................................................................... 12 本章小結(jié) ........................................................................................................................ 14 第 3 章 基于 DSP2812 的實(shí)驗(yàn)開發(fā)板的硬件設(shè)計(jì) .............................................................. 15 TMS320F2812 芯片 ....................................................................................................... 15 電源模塊硬件設(shè)計(jì) ........................................................................................................ 16 流水燈實(shí)驗(yàn)的硬件設(shè)計(jì) ................................................................................................ 17 獨(dú)立按鍵掃描的硬件設(shè)計(jì) ............................................................................................ 17 四位數(shù)碼管實(shí)驗(yàn)的硬件設(shè)計(jì) ........................................................................................ 17 外部中斷實(shí)驗(yàn)硬件設(shè)計(jì) ................................................................................................ 18 本章小結(jié) ........................................................................................................................ 18 第 4 章 基本實(shí)驗(yàn)內(nèi)容 ............................................................................................................ 19 GPIO 應(yīng)用：流水燈實(shí)驗(yàn) .............................................................................................. 19 實(shí)驗(yàn)?zāi)康? ...................................................................................................