编译环境：ICC AVR 6.31A

单片机：AT90S8515



PC.0出音乐信号，INT0，INT1分别接下一首、播放/暂停键



开机处于暂停状态，按下播放/暂停键开始放音，自动播放完8首，会再进入暂停状态。

所有的暂停状态都采用掉电模式。 -build environment : ICC AVR microcontroller 6.31A : AT90S8515 PC.0 musical signal INT0, INT1 respectively took one, Play / Zantingjian Boot suspended, press Play / Zantingjian start of audio, automatic broadcast End 8, will enter the state. All the suspended power-down mode is used.