提取、刷写飞利浦713X系列电视卡EEPROM（识别码）-Extraction, Writing Brush Philips 713X series tv card EEPROM (ID)

使用工作频率为125ＫＨｚ的射频ＩＤ卡和密码识别相结合的门禁系统为例，说明单片机控制门禁系统的原理及应用。-125KHz frequency of use of radio frequency identification ID card and password access control system combined to illustrate the principles of SCM and application of access control systems.

基于单片机的射频卡开发程序，下位机通过串口的指令进行信息交互，其功能包括寻卡、写卡、识别卡ID等，射频卡的型号位飞利浦公司的mifare卡，其说明书可以在datasheet上查看-Microcontroller-based RF card development process, lower computer through the serial port command for information exchange and its functions include searching c