Software Design of Mifare Smart IC Card Read-write Device Based on MCS-51
LIN Qian, ZHU Yanzhao (South China University of Technology, Guangzhou 510640, China)
While Mifare technology of Philips is the prevailing contactless IC card technology, Mifare smart IC card is of high security and reliability, having the characteristic structure of partition and available for multi-use on single card. The system based on MCU and read-write module can be adopted in broad domains. The paper mainly focuses on the software design in such system, and introduces smart IC card and the principle of its read-write device. Elaborate analysis is demonstrated on the communication between MCU and IC card with SPI mode and temporal arithmetic. Moreover, there are details on the store-mode, with respect to data stability, and the read-write arithmetic, offering the counterpart of flow chart and code. Now that the whole software system is designed in the aspect of general use and accomplishes the basic and stable read-write function, user could add some accessorial program, aiming at the specific application, to achieve most application goal. The software system is of high level ability for transplant.