此源代码,是一个rfid读卡器程序源码，通过spi方式读取卡的数数据并控制，实现了寻卡，校验，读卡，写卡，加密等操作。 可直接使用。 -This source code is a rfid reader program source code, by the the spi way to read the card number data and control, look for card check, the reader, write cards, encryption operati