说明：  瑞泰创新ICETEK-DM642-P4开发板的实验指导书，包括如何设置CCS和一系列图形实验的指南，方便新手学习DSP开发
(Ruitai innovation ICETEK-DM642-P4 development board to guide the experiments, including how to set up a CCS and a series of experiments graphics guide, facilitate the development of new learning DSP)