该程序模块中xllp_CPUfreq.s，xllp_freq.c，xllp_intc.s，xllp_freq.h四个文件是修改CPU频率的主要代码，使用前可以将这些文件和xllp目录下的文件编译在一起，以便可以在程序的任何地方调用它们，修改和读取CPU频率主要依靠调用xllp_freq.c文件中的两个函数完成：XLLPSetCoreRunFrequency，xllpGetCurrentFreqSetting。-The program module xllp_CPUfreq.s, xllp_freq.c xllp_intc.s xllp_freq.h four documents to modify the CPU frequency code, before using these files and xllp directory files can be compiled together so that you can programanywhere they are called, modify, and read the CPU frequency mainly depend on two functions call the xllp_freq.c file completed the: XLLPSetCoreRunFrequency, xllpGetCurrentFreqSetting.