主要介绍嵌入式一般编写方法，包括：无操作系统代码编写，有操作系统代码编写，uCOS在33209上的移植，嵌入式C语言代码的编写风格-Focuses on the general preparation of embedded methods, including: non-operating system code is written, there is the operating system code is written, uCOS at 33209 Porting, embedded C language code of the coding style