bf533 spi启动代码，加载后运行后，不断从向串口发出字符“8”，可用超级终端接受。-bf533 spi bootcode, the loading operation, constantly sent from the serial port to the characters "8" available for the Super Terminal.

运行上位机的歌曲播放软件，选择MP3 格式的歌曲文件，全速运行MP3play 程序，通过 网络传送的MP3 文件解码后直接输出到开发板PHONE 接口，此时，用户可通过耳机聆听 MP3 歌曲（高音质）(Run the PC player's song playing software, select the MP3 format song files, run the MP3play program at full speed, and send it to the PHONE interf