摘要
为了解决嵌入式系统中大容量数据存取以及系统间数据交换不便等问题,在ARM7处理器LPC214X的平台上,采用开源软件项目EFSL,通过设计底层驱动,实现了基于SD卡的FAT文件系统移植。文中依据SD卡的基本结构和工作原理,设计了LPC214X与SD卡的接口电路,并在此基础上实现了EFSL文件系统在LPC214X上的移植。结果表明,该系统不仅可以稳定运行,而且移植方便。
To solve the problems in embedded system including large capacity data access and data exchange inconvenience between systems, open source software project EFSL is used on the ARM7 LPC214X processor platform, and the FAT file system migration on the SD card is realized through the design of underlying drivers. According to the basic structure and working principle of SD card, the paper designs the interface circuit between LPC214X and SD Card, and on that basis the migration of EFSL file system on LPC214X is accomplished. The result shows the migration is reliable and convenient.
出处
《单片机与嵌入式系统应用》
2011年第1期24-26,共3页
Microcontrollers & Embedded Systems
