采用适当的误差补偿，利用单片机定时中断的方法能在宽音域范围产生准确稳定的音频信号。本文以MCS-51单片机为例介绍单片机的音乐程序的编写，给出的程序，只须修改乐曲内容就可得到读者自己的程序。-The use of appropriate error compensation, the use of single chip timer interrupt method can produce a wide range of accurate and stable range of audio signals. In this paper, an example MCS-51 SCM SCM' s procedures for the preparation, the procedure is given, only the reader can be obtained to modify the content of their music programs.