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.

音乐播放器的上位机部分，通过串口连接51单片机，用红外遥控器控制播放器音量、切歌等功能-Music Player for PC parts, connected via serial port 51, using infrared remote control the player volume, cut songs, etc.

通过指定的串口操作,就可以实现正常的播放,上下曲操作,音量调节等等.通过这次设计,也详细了解了MP3的编码格式,了解学习不能停留在书本上面,因为技术是日益更新(The specified serial port operation, can achieve normal playback, up and down operation, volume control and so on. Through this design, but also a detailed understanding