Over the last decade, single-chip micro-computer as a very important branch of a wide range of applications, the rapid development of human society has produced a far-reaching implications. This article describes AT89C2051 MCU-based music player hardware design and software design process. "Single-chip music player" is a relatively close to real-life topics, but also have some fun. The system achieved a music player and can play at any time through the buttons on the next one and one, at the same time shows the current entries in music player functions. The music player can be a way through software to add and remove. Through practical experiments proved that the system has a simple hardware design, software adjustable large, the system advantages such as stable and reliable. Design has always been to stay close to reality for the principles, including the feasibility of hardware, software programs to run the compiler reliability, cost-price circuit have done a corresponding consideration.
For the recent ten years, as an important branch of the microcomputer,develop rapidly and applicate widely, the microcontroller has affected the human society exerted profoundly. Based on the singlechip of AT89C2051 the paper introduces its music player hardware design and software design process. A "Chip Music player" is close to the topic of the real life with some fun.This system relised not only playing music,but also skipping to the next song or jumping back to the previous one while playing by pressing the button down.And the system can display the serial number of the current song.You can add songs in or delete from the system by programming. Through the practical experiments show that the system has the hardware design and software can be simple and reliable system etc. Design with practical for the principle, including the hardware circuit and software program, the feasibility of the compiler operation reliability, the cost price of circuit are made accordingly.