说明：  这是VxWorks BSP的一个使用示例，通过其您可以很容易了解到VxworksBSP的精髓，对于提高你的BSP水平是很有益处的
(VxWorks BSP is the use of an example. through you can easily understand the essence VxworksBSP, For the BSP to raise your level of the usefulness of)