ldpc码的peg构造，用c++写的，在xp上能够运行成功，是学习peg构造方法和c++编程的非常好的材料。-LDPC code peg construction, with c++ written in xp can be run successfully, is to learn from peg Construction methods and c++ programming very good material.

使用复旦微电子的FM17522读卡，以及实现LPCD低功耗外部卡片侦测功能-Use Fudan Microelectronics FM17522 reader, and the realization of low-power external LPCD card detection

使用复旦微电子的FM17522读卡，以及实现LPCD低功耗外部卡片侦测功能(The use of Fudan microelectronic FM17522 card and the realization of LPCD low power external card detection function)

完美替换rc522，自带LPCD低功耗唤醒检卡，待机功耗大概10uA(Perfectly replace rc522 with LPCD with low power wake-up card. Standby power consumption is about 10uA)