CAJ | 학술논문

以飞思卡尔推出的内部集成USB2.0模块的MCF52223微控制器为基础,借鉴USB OTG双重角色的思想,提出了自主数据采集和非自主数据采集两种编程模式概念,实现可配置运行的嵌入式USB主机功能,完成对U盘文件的读写与查询,使U盘成为系统的外挂式海量存储设备以及查询数据库.系统稳定地应用于基于二代身份证会议签到系统的实践表明,这种设计方式对数据查询、存储、读取带来了较大方便,并能方便地切换到非自主数据采集模式,可为同类应用借鉴.
이비사잡이추출적내부집성USB2.0모괴적MCF52223미공제기위기출,차감USB OTG쌍중각색적사상,제출료자주수거채집화비자주수거채집량충편정모식개념,실현가배치운행적감입식USB주궤공능,완성대U반문건적독사여사순,사U반성위계통적외괘식해량존저설비이급사순수거고.계통은정지응용우기우이대신빈증회의첨도계통적실천표명,저충설계방식대수거사순、존저、독취대래료교대방편,병능방편지절환도비자주수거채집모식,가위동류응용차감.
With reference to the idea of USB OTG dual role,and based on the microcontroller MCF52223 which is integrated with USB2.0 module produced by Freescale Corporation,this paper put forward the concept of two-programming-models: "Self Data Acquisition" and "Non-self Data Acquisition",realized the function of configurable embedded USB host,and completed the read-write and inquiry of the U-disk,and made U-disk become the external mass storage devices and query database. This acquisition system stable usage in the meeting attendance system based on second-generation ID card shows that the design makes the data query,storage and read more convenient and can easily switch to non-self data acquisition mode,which can be referred by similar applications.