基于单片机的音乐发生器设计_毕业设计_精品.doc

郑州航空工业管理学院 毕 业 论 文（设 计） 2013 届 电气工程及其自动化 专业 1106971 班级 题 目 基于51单片机的音乐发生器设计 姓 名 学号 指导教师 职称 二О一三年五月十六日 内 容 提 要 本文是应用MCS-51单片机原理和控制理论设计音乐器的硬件电路，并利用语言进行程序设计。通过控制单片机内部的定时器产生不同频率的方波，驱动喇叭发出不同音调的音乐，再利用延迟控制发音时间的长短。把乐谱转化成相应的定时常数从发音设备中演奏出悦耳动听的音乐。 本系统采用C语言进行软件设计。正文中首先简单描述系统硬件工作原理，且附以系统硬件设计框图，论述了本次毕业设计所应用的各硬件接口技术和各个接口模块的功能及工作过程。其次阐述了程序的流程和实现过程。本文撰写的主导思想是软、硬件相结合，以硬件为基础，来进行各功能模块的编写。 关 键 词 单片机音乐C语言89C51；KEIL；PROTEUS Abstract In this paper, The music generator and its hardware circuit is designed by MCS-51 single-chip microcomputer principle and control theory, and the Software development and programming are based on C language programming. According to control the MCU internal timer to produce different frequency Square wave to drive the horn sounds of different tones of music, then use the delay to control the length of time. The music Transformationed into the timing constants corresponding so that the sound equipment can play Melodious music. The music box is mainly composed of keypad circuit, reset circuit, clock circuit and a buzzer. Two buttons are used to control the music box, one to switch songs, another is used to switch the 8 LED pattern, the music box has two songs, a total of 3 kinds of pattern light pattern. While the music is playing, the buzzer sounded a tone, and the corresponding LED lights up. The design of programming the music box and debug source code using KEIL programming software, and to save the design time the PROTEUS simulation software is used to simulate the hardware debugging. The system uses C language for software design. Firstly, in the text describes the working principle of the system hardware, and attached to the system block diagram of hardware design to discusse the function and working process of the graduation design and the application of the hardware interface technology and the interface module. Secondly, expound the procedures and processes to achieve process. Th