数字音乐盒code

1.利用I/O口产生一定频率的方波，驱动蜂鸣器，发出不同的音调，从而演奏乐曲（最少三首乐曲，每首不少于30秒）

2．采用LCD显示信息

3．开机时有英文欢迎提示字符，播放时显示歌曲序号（或名称）

4．可通过功能键选择乐曲，暂停，播放。

5．选作内容：显示乐曲播放时间或剩余时间

-Digital Music Box code

1. The use of I/O port must have a square-wave frequency, drive buzzer, different tone, so playing music (at least 3 pieces, each not less than the first 30 seconds)

2. Using LCD display information

3. Boot-up has prompted the English welcome characters, players display song number (or name)

4. Function keys can select music, pause, play.

5. Selected as the content: Display the remaining time or music playback time