这是用proteus和keil两个平台一起完成的，对学习嵌入式的人来说绝对超值，提供了汇编和c语言代码

基于BREW。用C语言编写的定时器代码。对新手学习定时器有一定帮助。-Based on BREW. Timer with the C language code. Novice to learn on the timer has some support.

BREW上用C语言编写的SOUND文件。虽然简单单对新手来说有一定作用。具有学习作用-BREW using C language on the SOUND file. Although a simple one-on-newcomers have a certain effect. With a learning effect