基于嵌入式USB主机和ZigBee技术的无线音响系统①

现阶段家用音响系统采用有线方式布线复杂、不易改动,而采用蓝牙技术无线传输音频数据系统成本过高。基于以上问题,设计了以TI公司的MSP430F1611为主控芯片,控制USB接口芯片CH375读取U盘内mp3音频文件,并将其数据流通过ZigBee网络传送给分节点,最后经音频解码芯片VS1003解码输出的低成本、低功耗无线音响系统,将嵌入式USB主机和ZigBee技术创新性地应用于家用音响系统的无线数据传输。

Wireless Sound System Based on Embedded USB-HOST Device and ZigBee Technology

Currently, the wired mode in household audio system is complex and difficult to change, whereas it costs too much to use Bluetooth to transmit aundio data. Based on these issues, we design a low-cost, low-power wireless audio system which uses TI's MSP430F1611 as the master chip to control the USB interface chip CH375 to read mp3 audio files inside a U disk, and transmits the data streams through ZigBee network to the sub-node, then decode and output the signal by audio decoder chip VS1003. It innovatively uses embedded USB-HOST and ZigBee technology in domestic sound system and achieves the wireless transmission of audio data.