基于ATMEGA644P单片机的无线MP3 RADIO设计

为实现PC机上MP3文件的无线传输和实时控制,设计并实现了基于ATMEGA644P单片机的无线MP3 Radio。硬件上系统选用ST013和CS4339搭建音频解码模块,采用IIC协议与ATMEGA644P单片机通信,完成DAC转换,通过以MAX2606为核心的调频发射模块调制基带信号为88Mhz-108Mhz。软件上使用PHP-GTK编程语言开发GUI界面,高效地管理本地MP3文件,通过RS232协议与控制器通信,实时传输数据和接收控制命令。经过对系统性能的反复测试,最终实现了发射距离在50m内,32kbpsMP3文件的播放和实时控制。

Wireless MP3 RADIO design based on ATMEGA644P single chip microcomputer

In order to achieve the Wireless transmission of MP3 files and real-time control. In the design of hardware, this paper designed and implemented the Wireless MP3 RADIO based on ATMEGA644 P MCU.The system chose STA013 and CS4339 to build an Audio decoding Module which communicated with MCU using IIC Protocol to Complete the DAC conversion. The FM Module based on Max2606 modulate Baseband signal to 88Mhz-108 Mhz.In the design of software, using PHP-GTK as a programming language to exploit GUI that manage local MP3 files efficiently. Moreover, communicating with MCU using RS232 Protocol to transmit data and Receive commands in real-time. Test the system for many times, achieved the launch distance within 50 m, 32 kbps mp3 files play and real-time control.