摘要目前, 随着广播事业急速发展, 各种广播电台一样纷纷建立起来。人们需要有这样的一台数字调谐收音机; 能自动寻找电台, 能把自己喜欢的电台储存起来, 同时且有时间显示功能, 自动关机、开机等等功能。数字调谐收音机的高频、变频、中频、检波、功放等等均与传统的收音机相同。找台、存台、锁相环等等功能均由数字调谐收音机所特有的电路来完成。此毕业论文在已有的的收音机模块的基础上,选用51系列微处理器AT89C51对的TEA5767收音机模块、FM62429数字调音模块、1602液晶屏显示模块进行控制,制作了一款完善的数字调谐收音机。8665
关键词 :数字调谐式收音机、AT89C52、TEA5767、FM62429、LCD1602
毕业设计说明书(论文)外文摘要
Title Microcontroller-based digital tuner radio
Abstract
Nowday, with the rapid development of the broadcasting industry, a variety of radio stations have been established. People need a digital tuner radio which can automatically find the radio, save your favorite radio and time display and have automatic shutdown. The high-frequency, frequency conversion, intermediate frequency, detector, and amplifier of the digital tuning radio are the same as conventional radio. The specific circuit of the digital tuning radio can finish the functions such as finding units, storageing units, phase-locked loop, and more. This article based on the existing radio modules and selected 51-series microprocessor AT89C51 to control TEA5767 radio modules, FM62429 digital mixer module and the 1602 LCD display module, produced a complete digital tuner radio.
Keywords digital tuning radio AT89C52 TEA5767 FM62429 LCD1602
目 次
1 引言 5
1.1 选题背景 5
1.2 设计要求 5
2 方案选择及硬件电路设计 6
2.1 系统方案设计指标 6
2.2 系统组成 6
2.3 微处理器选择--AT89C52微控制模块 7
2.4 收音单元选择—TEA5767收音机集成模块 8
2.5 音量控制单元选择--FM62429数字调音模块 10
2.6 显示模块选择--LCD1602显示模块 11
2.7 键盘电路选择 12
2.8 供电模块选择 13
3 系统软件设计 13
3.1 软件技术介绍 13
3.2 软件开发环境介绍 14
3.3 主程序设计 15
3.4 TEA5767收音机控制 15
3.5 按键控制 21
3.6 LCD1602显示控制 22
结论 25
致谢 26
参考文献 27
附录A 28
附录B 29