《基于IIS总线的嵌入式数字音频系统》-毕业论文.doc

摘 要 本文介绍了基于IIS总线的嵌入式数字音频系统，实现了以Samsung S3C44B0 ARM7处理器为主控核心、以Philips UDA1341TS为编解码芯片的软硬件设计方案。硬件方面，实现了NOR Flash, 晶振电路，复位电路，串口电路，JTAG接口电路并建立了与UDA1341TS的连接；软件方面， UDA1341芯片提供放音和录音接口，可直接驱动耳机或其他音频设备，实现了音频信号的A/D、D/A 转换、存储、回放等功能。该系统具有设计灵活、扩展性好和数据处理速度快等优点。 关键字：嵌入式系统； IIS 总线； 数字音频 Abstract In this paper, based on the IIS bus embedded digital audio system, a Samsung S3C44B0 ARM7 processor core for the host to Philips UDA1341TS codec chip for hardware and software design. Hardware, the realization of the NOR Flash, crystal oscillator circuit, reset circuit, serial circuit, JTAG interface circuit and to establish connections with UDA1341TS; Software, UDA1341 release tone to provide audio chip interfaces directly drive headphones or other audio equipment, the realization of the audio signal A / D, D / A conversion, storage, playback and other functions.the system has the design flexibility, better scalability and data-processing speed, etc. Keywords: embedded systems; IIS bus; digital audio 目 录 TOC \o 2-3 \h \z \t 标题 1,1 HYPERLINK \l _Toc234033723 摘 要 PAGEREF _Toc234033723 \h I HYPERLINK \l _Toc234033724 Abstract PAGEREF _Toc234033724 \h II HYPERLINK \l _Toc234033725 目 录 PAGEREF _Toc234033725 \h I HYPERLINK \l _Toc234033726 第一章 绪论 PAGEREF _Toc234033726 \h 1 HYPERLINK \l _Toc234033727 1.1嵌入式系统简介 PAGEREF _Toc234033727 \h 1 HYPERLINK \l _Toc234033728 1.1.1 嵌入式系统的概况 PAGEREF _Toc234033728 \h 1 HYPERLINK \l _Toc234033729 1.1.2嵌入式系统的分类及特征参数 PAGEREF _Toc234033729 \h 1 HYPERLINK \l _Toc234033730 1.2嵌入式系统的研究背景 PAGEREF _Toc234033730 \h 2 HYPERLINK \l _Toc234033731 1.2.1 嵌入式系统的发展 PAGEREF _Toc234033731 \h 2 HYPERLINK \l _Toc234033732 1.2.2 嵌入式系统的应用前景 PAGEREF _Toc234033732 \h 3 HYPERLINK \l _Toc234033733 第二章 硬件系统 PAGEREF _Toc234033733 \h 5 HYPERLINK \l _Toc234033734 2.1应用工具软件 PAGEREF _Toc234033734 \h 5 HYPERLINK \l _Toc234033735 2.2电路原理及应用 PAGEREF _Toc234033735 \h 7 HYPERLINK \l _Toc234033736 2.2.1 硬件结构图： PAGEREF _Toc234033736 \h 7 HYPERLINK \l _Toc23403