基于ARM7TDMI内核的芯片里多数硬件模块都是可配置的，需要由软件来设置其需要的工作状态。因此在用户的应用程序之前，需要由专门的一段代码来完成对系统的初始化。-based on the ARM7TDMI core chip Lane are most hardware module can be configured, need to set up the software to their needs work state. Thus the user before the application, which requires a special code to complete the initialization of the system.