at89s52单片机与菲利普mfrc500射频读卡芯片读写射频卡资料，包括源代码，电路图以及说明文档。-at89s52 SCM and Philip mfrc500 RF radio frequency card reader chip to read and write data, including source code, schematics, and documentation.

高频 RFID阅读器开发源程序，试验证明可以使用-High-frequency RFID reader development source code, test that can be used