音乐播放例程演示

1 开机循环播放 9 首音乐，LED也按预定流水灯程序循环闪动

2 按key1键则切换播放音乐。按key1键开始/停止音乐自动播放

3 按key3键则自动/手动闪烁方案。按key4键切换闪烁方案

4 资源配置:Timer0用于为系统提供时基；Timer1用于音乐播放；

5 2个中断源，其中为Timer0和Timer1中断-Music player routine demonstrates a boot loop 9 music, LEDs also cycle in a program scheduled water light flashing two press key1 button to switch between playing music. Key1 key start/stop music play automatically key3 key auto/manual flashing program. Switch the flashing program key4 key resource allocation: Timer0 is used to provide the system time base　Timer1 is used for music playback　52 interrupt sources, which interrupt for Timer0 and Timer1