通信技术
通信技術
통신기술
COMMUNICATIONS TECHNOLOGY
2013年
8期
150-152
,共3页
片上系统%串行外设接口%文件系统
片上繫統%串行外設接口%文件繫統
편상계통%천행외설접구%문건계통
SoC (system-on-chip)%SPI (serial peripheral interface)%FatFs (File System)
使用片外flash存储的配置文件来重配置FPGA具有众多优点，传统的做法是直接通过SPI读取flash里的配置文件,弊端显而易见,多个配置文件不便于管理，直接访问通用性差。FatFs是专门针对小型嵌入式系统的通用FAT文件系统模型，代码空间和数据空间需求量小。基于艾特（Actel）的片上系统FPGA 芯片 SmartFusion，通过对 FatFs 文件系统的移植，有效解决了对配置文件的管理问题，同时屏蔽了对flash的直接访问，避免误操作。
使用片外flash存儲的配置文件來重配置FPGA具有衆多優點，傳統的做法是直接通過SPI讀取flash裏的配置文件,弊耑顯而易見,多箇配置文件不便于管理，直接訪問通用性差。FatFs是專門針對小型嵌入式繫統的通用FAT文件繫統模型，代碼空間和數據空間需求量小。基于艾特（Actel）的片上繫統FPGA 芯片 SmartFusion，通過對 FatFs 文件繫統的移植，有效解決瞭對配置文件的管理問題，同時屏蔽瞭對flash的直接訪問，避免誤操作。
사용편외flash존저적배치문건래중배치FPGA구유음다우점，전통적주법시직접통과SPI독취flash리적배치문건,폐단현이역견,다개배치문건불편우관리，직접방문통용성차。FatFs시전문침대소형감입식계통적통용FAT문건계통모형，대마공간화수거공간수구량소。기우애특（Actel）적편상계통FPGA 심편 SmartFusion，통과대 FatFs 문건계통적이식，유효해결료대배치문건적관리문제，동시병폐료대flash적직접방문，피면오조작。
There are many advantages in configuration of FPGA by using configuration files on off-chip flash in store. Traditionally the configuration files in flash are read directly by SPI, the drawback is obviously, including that the management of multiple configuration files are not easy and the direct access to flash could not be commonly used. FatFs is a general FAT file system model for small embedded systems with little demand of code place and data place. Based on FPGA chip Smart Fusion from Actel and the transplantation of FatFs file system, the management configuration files is effectively settled, and meanwhile the direct access to flash shielded, and the mistake avoided.
