基于Nucleus的IC卡设备驱动，可供搞ic卡，手机sim卡的朋友借鉴-Nucleus of the IC card-based device driver, for engaging in ic card, mobile phone sim card' s friends learn

RFSim卡的读写操作源代码，主要实现对sim卡的读取和写操作,RFSim card read and write source code to read and write operations on the sim card