网络收音机(iRadio)应用简介
网络收音机(iRadio)是我们合作伙伴RnD的一个案例，他使用了一颗低端的MCU来处理音频解码，用W5100来处理网络网络音频流数据的接受。主芯片是ATMELAVR32, 服务器采用了DLNA公开服务器程序。
最终实现了音频流的网络播放功能。
其示意图和主要配置如下。
主要硬件配置：
Hardware Specifications:
- AVR32 for MP3 and WMA decoding
- W5100 10/100Mbps Ethernet Controller with Network Protocols
- 1MByte SDRAM for audio buffering
- 2.4” color TFT (320x240)
- DC 5V input for core, DC12 input for Audio Amplifier
BOM List:
- W5100 + RJ45
- AVR32 or similar
- SDRAM 1MByte
- 2.4” TFT (2.2”)
- Power and Misc
- Audio Amplifier (about 20W)
Features:
- Local playback on SD Card (pending, waiting for Atmel)
- Internet Radio with MP3 (working now) and WMA format (debugging)
- Download Station lists from Portal in XML format
- DLNA Renderer to play audio streamed from DLNA server
- Server format:
•HTTP: working now
•MMS: implementing
•RTSP: planned
Applications:
- Internet Radio, with DLNA Renderer
- Embedded with other AV system, (no need to count TFT), such asBoom box, Photo frame, DVB, DVD…
even we could share the SoC in the system, for example, in DVD; wejust need to add W5100 + RJ45 to
have same functions.
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