【正文】
.....................................................................29 LPC2136 管腳配置 .............................................................................30 硬件原理 .......................................................................................................30 電源電路 ...............................................................................................30 復(fù)位電路 ...............................................................................................31 系統(tǒng)時鐘電路 ......................................................................................32 JTAG 接口電路 ......................................................................................33 串口及 MODEM 接口電路 .....................................................................33 按鍵電路 ...............................................................................................34 LED 顯示電路 ......................................................................................35 蜂鳴器控制電路 ..................................................................................37 I2C電路 ...................................................................................................38 直流電壓測量電路 .........................................................................38 DAC 電路 ...............................................................................................39 RTC 電路 ...............................................................................................40 USB 電路 ...............................................................................................40 第四章 軟件系統(tǒng)的基礎(chǔ)構(gòu)建與設(shè)計 ................................................................42 啟動代碼綜述 ...............................................................................................42 一般 ARM 芯片啟動過程 .....................................................................42 LPC2136 啟動文件組成 .....................................................................44 LPC2136 啟動代碼工作流程 ............................................................47 移植 181。C/OSII 第二章 Abstract With the development of IT work technology, embedded system shows a new direction of technology development. Embedded system has been applied in military, electronics, munication, industrial control and so on, with respect to its small size, high performance, low cost, high reliability and oriented object program. Embedded controller with RTOS gets over the traditional microcontroller and the disadvantage of the unreal time specialty base on pc, instead it is realtime, low cost ,miniaturized ,customized ,and high dependability. It also has a broad foreground , along with the fast development of hardware of embedded system . This intention of this topic is designing the embedded system, which is important for enhancing the understanding of embedded system. The research is highlighted in both design theory and applications of embedded system, which extended its developments. This paper is anized into six parts: 1. This article essentially introduced the development of embedded system, its classification, applications in numerous areas, and its development orientation. 2. The second chapter covers the general design of the embedded system, based on the elements of embedded system design. then it shows the devise ideology and methods in either hardware or software, and the demonstration of its accessibility. 3. The third chapter gives out the hardware of the embedded system, including design, test and implementation of each module, as well as their interface circuitry. 4. The forth chapter introduces the process and attentions of RTOS 181。C/OSII的實時響應(yīng)參數(shù)。 4 、嵌入式系統(tǒng)所采用的操作系統(tǒng)的 移植與調(diào)試,詳細講敘了 181。本課題以嵌入式系統(tǒng)設(shè)計原理和實際應(yīng)用為核心,從理論上和技術(shù)方法上開展了一系列研究。xx 大學(xué)碩士學(xué)位論文 i 碩士學(xué)位論文 基于 ARM的嵌入式系統(tǒng)設(shè)計 第一章 摘要 嵌入式系統(tǒng)以其小型、專用、易攜帶、可靠性高的特點,已經(jīng)在各個領(lǐng)域得到了廣泛的應(yīng)用,如軍事國防、消費電子、通信設(shè)備、工業(yè)控制等。 本課題的目的就是研究適用于學(xué)校教學(xué)的嵌入式系統(tǒng)平臺,這對 于提高對嵌入式系統(tǒng)的理解具有重要意義。 3 、嵌入式系統(tǒng)硬件平臺的設(shè)計與調(diào)試,著重敘述了硬件平臺的整體設(shè)計方案,包括各個設(shè)計模塊的選型與接口電路的設(shè)計 。C/OSII內(nèi)核實時性能進行了深入的分析,通過實際測試得出了在特定條件下 181。 關(guān)鍵詞 : 嵌入式系統(tǒng) ARM RTOS 181。 嵌入式系統(tǒng)簡介 .......................................................................................... 2 嵌入式系統(tǒng)的定義和特點 ................................................................ 2 嵌入式系統(tǒng)的發(fā)展和趨勢 ................................................................ 2 嵌入式處理器概述 ...................................................................................... 4 嵌入式處理器的 分類 ......................................................................... 4 ARM 處理器簡介 .................................................................................. 6 本文主要研究的問題背景和內(nèi)容 ............................................................ 7 本文主要研究的問題背景 ................................................................ 7 本文主要內(nèi)容描述和安排 ................................................................ 8 第二章 嵌入式系統(tǒng)總體設(shè)計 ............................................................................. 9 嵌入式系統(tǒng)設(shè)計方法討論 ......................................................................... 9 開發(fā)平臺的功能需求分析 .........................................................................11 開發(fā)平臺軟硬件的選擇 .............................................................................12 系統(tǒng)硬件平臺的選擇 .........................................................................13 嵌入式 ARM 處理器的選型 ...........................................13 LPC2136 芯片簡介 ............................................................15 片外外圍設(shè)備的選擇 ...................................................16 系統(tǒng)軟件的選擇 ..................................................................................17 實時操作系統(tǒng)的選型原則 ...........................................18 幾種開源的嵌入式操作系統(tǒng)的比較 .........................20 181。C/OSII 實時性能測試分析 .....................................................................64 測試方案設(shè)計 ..................................................................