基于FPGA的简易子琴设计.doc

简易电子琴的设计 学生姓名：王春 指导老师：郑大腾 摘要多功能电子琴的设计是在原有普通电子琴的基础上进行扩充的一个设计。该电子琴的设计大体三个模块构成，分别电子琴发声模块、存储器模块和选择控制模块。用超高速硬件描述语言编程实现各个模块的功能。不仅能实现弹琴和演奏的功能，它还能实现“复读”的功能，存储任意一段音乐，并且即时的播放出来用硬件描述语言VHDL按模块化方式进行设计，进行编程 关键字Abstract This system is designed using EDA technology a simple eight-note keyboard, the system clock divider based on the principle of the computer, using top-down design methodology to implement, it can be controlled through the key input audio. Multi-function keyboard is designed to be an ordinary keyboard in the original expansion on the basis of a design. The design of the keyboard in general consists of three modules, namely the keyboard sound modules, memory modules and select the control module. Ultra high-speed hardware description language VHDL programming function of each module. Not only can realize the function of playing and playing, it can achieve repeat function, which can store any piece of music, and real-time play out. System implementation is to use hardware description language VHDL modular way by design, then programming, timing simulation, integration. The system features a relatively complete, there is a certain value. This paper introduces the overall design of the keyboard system, and based on high speed hardware description language VHDL in Xilinxs Spartan Ⅱ series 2sc200PQ208-5 chip programming. Keyword Keyboard; EDA; VHDL; tone occurred; field programmable logic device FPGA; ultra high-speed hardware description language VHDL; organ systems; 朗读 显示对应的拉丁字符的拼音 ? 字典 名词 summary abstract 朗读 显示对应的拉丁字符的拼音 字典 1 引 言 1.1 设计的目的 1.2 设计的基本内容 2 FPGA、EDA、VHDL简介 2.1 FPGA工作原理 2.1.2 FPGA的基本特点 2.2 EDA技术 2.3 硬件描述语言——VHDL 2.3.1 VHDL的简介 2.3.2 VHDL语言的特点 2.3.3 VHDL语言上机操作条件 2.3.4 VHDL的设计流程 3 音乐知识介绍 4 简易电子琴设计 4.1系统设计的总思路 4.2程序设计的流程图 4.3简易电子琴的工作流程图 4.4简易电子琴中各模块的设计 4.4.1 乐曲自动演奏模块 4.4.2 音调发生模块 4.4.3 数控分频模块 4.4.4 顶层设计 5 系统仿真 6 结束语 致谢 参考文献 附录 1 引 言 对于广大老百姓来说，电子琴可以说已经不再是什么“新鲜玩意”了，它作为一种休闲娱乐的产品早就推出市面，进入了们的生活。集科学性，先进性，创新性，实用性于一体