基于FPGA的SD卡控制器设计

Controller of SD Memory Design Based on FPGA

以FPGA为平台,设计了采用SPI接口的SD卡控制器。整体设计用Verilog HDL硬件描述语言实现,同时采用数据缓存(First In First Out,FIFO)技术解决实际应用中的时序问题,最终实现了整体设计功能。本设计充分发挥了FPGA所具有的开发周期短、处理能力强等特点,已成功应用于音频芯片采集的数据存储,验证了设计方案的可行性及有效性。

In this paper, the controller of SD card by SPI interface is designed based on FPGA system. The overall design uses Verilog HDL hardware description language, and the technology of First In First Out is used to solve timing problems, and then ultimately the overall design features are realized. The design takes advantage of the features of FPGA, which has reduction in development time, an efficient data processing, and other characteristics. The successful application in data storage collected by the audio chips shows that the design is feasible and valid.