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摘要 随着我国经济的高速发展,微电子技术、无线电通信技术和自动控制技术也得到了迅速发展,锁相环和频率合成技术已经进入一个崭新的时代,其应用越来越广。
而收音机作为现代的娱乐工具,与人们的生活紧密相关,随着人们对其要求的提高,收音机得到了快速发展,传统的电容、电感调台收音机已经向数字化收音机发展。
本文在已有的收音机模块的基础上,采用 AT89S52 微控制器对收音机进行控制,由 1602 液晶模块作显示,用 TEA5767 的高灵敏度,低电压和低功耗的全集成的优点作收音模块芯片,通过合理设计,制作了一款完善的数字调谐收音机,并增加了传统收音机所不具备的功能,使之达到了较为理想的效果。
关键词:微控制器 TEA5767,收音机 ABSTRACT With the development of the economy microelectronic technology radiocommunication technology and the automatic theory are developed rapidly thecompound frequency technology has been in a new state. Its application is becomingmore and more widely. But the radio as an important pastime tools it also hasdeveloped quickly with the improving requirement of the people .Its radio technologyhas developed from tradition capacitance or inductance to digital . The article is based on the now-being general radio module using AT89S52microcontroller to control the radio by 1602 for liquid crystal display modules withTEA5767 the high sensitivity low voltage and low power consumption of all theadvantages of integrated chips for the radio module. the reliability is improved and thefeeling of comfort is better through the reasonable design so the function of radio ismore powerful compared with tradition one .Keywords: Microcontroller TEA5767,Radio 目录摘要 .................................................................................................................................. IABSTRACT ........................................................................................................................ II第 1 章 引言 .................................................................................................................... 1 1.1 背景 ........................................................................................................................ 1 1.2 研究内容 ................................................................................................................ 1第 2 章 芯片介绍 ............................................................................................................ 2 2.1 TEA5767 收音芯片概述 ........................................................................................ 2 2.1.1 TEA5767 的特点 ........................................................................................... 2 2.1.2 管脚说明 ...................................................................................................... 3 2.1.3 I2C 总线说明 ............................................................................................... 3 2.1.4 数据传输 ...................................................................................................... 4 2.2 1602 液晶模块介绍 ................................................................................................ 6 2.2.1 技术参数 ....................................................................................................... 7 2.2.2 接口信号说明 .............................................................................................. 7 2.2.3 制器接口时序说明(HD4478 及兼容芯片) .............................................. 7 2.2.4 控制器接口时序说明 ................................................................................ 10 2.3 FM62429 芯片介绍 .............................................................................................. 11 2.4 AT89S52 片机模块介绍 ....................................................................................... 12第 3 章 硬件电路设计 ................................................. 16 3.1 系统组成 .............................................................................................................. 16 3.2 收音模块 .............................................................................................................. 17 3.3 音量控制模块 ...................................................................................................... 17 3.4 LCD1602 模块 ...................................................................................................... 18 3.5 按键模块 .............................................................................................................. 18 3.6 AT89S52 微控制模块 ........................................................................................... 19第 4 章 软件设计部分 ................................................. 21 4.1 主程序流程图 ...................................................................................................... 21 4.2 按键控制 .............................................................................................................. 22 4.3 收音机控制 .......................................................................................................... 22 4.4 LCD 显示控制 ...................................................................................................... 23第 5 章 结束语 .............................................................................................................. 24致谢 ................................................................................................................................ 25参考文献 ........................................................................................................................ 26附录 源代码 .................................................................................................................. 27 浙江科技学院信息与电子工程学院 2008 届本科毕业设计(论文) 第 1 章 引言1.1 背景 收音机诞生到现在
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