摘要
针对目前在嵌入式平台中使用SD卡控制器专用芯片价格昂贵、软件模拟SPI时序控制读写速度较慢的问题,提出了一种基于SoPC技术的SD卡控制器IP核设计的架构方案。采用VHDL语言设计SD卡控制器IP核,利用自定义模块技术将其添加到SoPC中,利用Nios II IDE编写SD卡的基础读写驱动软件并移植μC/FS文件系统,实现对SD卡的文件操作。该设计具有使用方便、集成度高、数据传输可靠、文件格式通用等特点,在基于SoPC架构的多用途无线防盗监控系统中得到良好的应用。
Architecture program of SD card controller IP core based on SoPC technology is proposed to solve the problems such as higher price of SD card controller ASICs applied into embedded platform and lower speed of SPI read-write timing by using software simulation. Firstly, SD Card Controller IP Core is designed with VHDL and integrated into SoPC by using custom module technology. Then, to realize the file operation, basic read-write driver is programmed andμC/FS file system is ported by C running on Nios Ⅱ processor. The design is with the properties of convenience, high integration, realiable data transmission and universal file format and gains better application in multi-purpose wireless security monitoring system based on SoPC architecture.
出处
《电子技术应用》
北大核心
2011年第3期137-140,共4页
Application of Electronic Technique
基金
"211工程"三期创新人才培养计划建设项目(No.S-09102)
