基于单片机的数码录音与播放系统

范文编号:JD108   字数:17591,页数:51

摘要

本次文档设计的主要目的是制作一个基于单片机的数码录音和播放系统。选用凌阳16位单片机SPCE061A和外部扩展存储器W29C040来实现。其具有体积小、集成度高、易扩展、可靠性高、功耗低、结构简单、中断处理能力强等特点，特别适应于数字语音录放和语音识别等数字应用领域。 SPCE061A是台湾凌阳公司生产的十六位单片机，该单片机内置有2路DA转换，8路AD转换及在线仿真等丰富的功能， W29C040是台湾华邦公司生产的4M位的FLASH存储芯片，利用它存储凌阳格式的语音资源，可以长达4分钟语音录放。该系统可以广泛应用于需求的录音较长的场合。如检测温度的存储播放系统，自录语音提示等应用方案。本系统提供W29C040相关的读写模块，此模块也可应用于W29C040同系列的相关FLASH芯片中。如果是简单的控制对象，只需要利用单片机作为控制核心，不需要另加外部设备就能实现。对于较复杂的系统，只需对单片机进行适当的扩展即可，十分方便。对一个复杂或功能强大的语音，图象处理系统需要很大的,不同的存储器（ROM,FLASH,SRAM）的存储空间，为了解决I/O不够的问题，我们使用W29C040芯片来扩展SPCE061A的存储器来实现更大空间的存储。
关键词 SPCE061A，闪存，W29C040，语音输入/录放

Abstract
This graduation project's main purpose is manufactures one based on monolithic integrated circuit's digital sound recording and the broadcast system. Selects Ling Yang 16 monolithic integrated circuit SPCE061A and exterior expanded memory unit W29C040 realizes. It has the volume to be small, the integration rate high, easy to expand, the reliability to be high, the power loss is low, the structure is simple, interrupt processing ability strong and so on characteristics, adapts specially in digital digital application domains and so on pronunciation recording and sending out and speech recognition. SPCE061A is 16 monolithic integrated circuits which Taiwan Ling Yang company produces, this monolithic integrated circuit built-in has 2 group DA to transform, 8 group AD transformations and the online simulation and so on rich function, W29C040 is 4M which Taiwan China Nation Company produces the position FLASH memory chip, uses it to save the Ling Yang form the pronunciation resources, may be 4 minute pronunciation recording and sending out. This system may widely apply in the demand recording long situation. If examination temperature memory broadcast system, from records application plans and so on voice prompt. This system provides the W29C040 related read-write module, this module may also apply in W29C040 in the homologous series related FLASH chip. If is the simple controlled member, only needs using the monolithic integrated circuit to take the control core, does not need to add separately the external instrumentation to be able to realize. Regarding the complex system, only need carry on the suitable expansion to the monolithic integrated circuit, is very then convenient. To one complex or the function formidable pronunciation, the imagery processing system needs to be very big, different memory (ROM, FLASH, SRAM) storage space, to solve the I/O insufficient problem, we use the W29C040 chip to expand SPCE061The memory to realize the bigger spatial memory.
key word SPCE061A, dodges saves, W29C040, speech input/recording and sending out

 目 录

摘要 ............................................................. 3
目录.............................................................  4
第1章   绪论 ......................................................7
第2章 摘要.......................................................  9
KEYWORDS  SPCE061A ,W29C040,flash memory,voice record ..............9
第3章硬件系统的设计与实现 ........................................10
3.1方案的选择..................................................... 10
3.2凌阳单片机的简介 .............................................. 11
3.2.1 综述 ....................................................... 11
3.2.2 结构概览 ................................................... 14
3.2.3 芯片的引脚排列和说明........................................ 15
3.2.4 SPCE061A最小系统 ............................................19
3.2.5 SPCE061A开发方法............................................ 19
3.3 SPCE061A 的外部存储器（Memory）的扩展........................  21
3.3.1  综述........................................................21
3.3.2  W29C040 的介绍 .............................................21
3.3.3 W29C040写、擦除流程图 ...................................... 23
3.3.4 系统结构图 ..................................................24
3.3.5 SPCE061A与W29C040的硬件连接图..............................  25
第4章软件系统的设计与实现.......................................  27
4.1  凌阳音频介绍 ................................................ 27
4.1.1音频概述 .................................................... 27
4.1.2 数字音频的采样和量化.......................................  27
4.1.3 音频格式的介绍.............................................. 27
4.1.4 语音压缩编码基础 ........................................... 27
4.2 凌阳音频编码算法 ............................................. 28
4．2.1 压缩分类 .................................................. 29
4．2．2 凌阳常用的音频形式和压缩算法 ............................. 29
4．2．3凌阳语音的播放、录制、合成和辨识 .......................... 29
4.2.4 语音录入使用介绍 ........................................... 30
4.3  W29C040与SPCE061A的系统软件设计 ............................. 33
4.3.1本系统软件实际流程图 ........................................ 33
4.3.2 程序源代码.................................................  36
第 5章 拓 展 设计 ............................................... 42
5.1 数码录音和播放系统的增强设计.................................  42
5.2温度测量显示存储系统..........................................  43
5.2.1系统总体方案介绍............................................. 43
5.2.2系统的硬件设计 .............................................. 43
5.3 SPCE061A的周边模块...........................................  43
5.3.1 电源模块...................................................  44
5.4 系统的软件设计 ............................................... 44
5.4.1 主流程 ..................................................... 44
5.5 凌阳的其他应用 ............................................... 45
第6章 结 束语 ................................................... 46
参考文献.........................................................  47
附录中英文翻译 .................................................. 48
附录1 英文原稿 ................................................... 48
附录2 中文译稿...................................................  49
致谢............................................................. 50

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