AVR单片机的调频立体声收音机设计  

FM Stereo Radio Based on AVR MCU

作　　者：何乃味[1] 

机构地区：[1]柳州职业技术学院,柳州545006

出　　处：《单片机与嵌入式系统应用》2014年第5期66-69,共4页Microcontrollers & Embedded Systems

基　　金：广西教育厅2013年科研立项项目(项目编号:2013LX224)

摘　　要：介绍一种以低功耗单片机ATmega8L为控制核心,以RDA5807P芯片作为FM接收器的调频收音机。该收音机通过单片机ATmega8L的I2 C总线接口读写RDA5807P收音模块的数据,用按键及红外遥控器进行搜台、音量调节等操作。用LCD显示接收频道的频率,当前音量大小等信息。设计中给出了实现FM调频收音机的硬件电路、读/写RDA5807P收音模块及红外遥控解码程序的思路。经多次比对测试,该收音机可以清晰、稳定地收听省府及本地发射的所有调频电台。This article describes a kind of FM radio which its controlling core is a low-power microcontroller ATmega8L and the MCU＇s receiver is RDA5807P chip . The radio can read and write RDA5807P radio module through the I^2C data interface of by the microcontroller ATmega8L. The radio can conduct search, volume control and other operations with buttons , LCD displays the frequency receiver channels and the current volume size and other information. The design are gives the realization FM radio hardware circuit, the read / write RDA5807P radio module and an infrared remote control decoding program ideas. After several comparison tests, the results show that the radio can be listened to all the FM radio that provincial and local emission clearly and stably.

关 键 词：AVR单片机 调频立体声收音机 I^2C总线 红外遥控 

分 类 号：TN852.1[电子电信—信息与通信工程] TP368.12[自动化与计算机技术—计算机系统结构]