北京邮电大学数字电路实验报告简易电子琴的设计与实现班级：2010211204姓名：罗润文学号：10210993班内序号：132012.11.10目录一．实验介绍.........................................................................................21.实验目的........................................................................................22.实验所用仪器及元器件.................................................................23.实验内容........................................................................................2基本内容.....................................................................................2提高要求.....................................................................................34.实验原理........................................................................................3二．实验设计与实现..............................................................................41.实验思路........................................................................................42.程序设计........................................................................................5顶层实体代码：..........................................................................6音调模块主要代码：..................................................................7点阵显示模块主要代码：..........................................................8分频模块主要代码：..................................................................93．仿真波形及分析..........................................................................9数码管显示波形图：................................................................10点阵显示波形图：....................................................................11清零信号显示波形图：............................................................12输出频率spkout的波形图：...................................................13三．故障及问题分析............................................................................13四．实验总结.......................................................................................14一．实验介绍1.实验目的（1）进一步掌握VHDL和QuartusII软件的使用；（2）理解状态机的工作原理和设计方法；（3）掌握利用ED