基于FPGA的FIFO设计和应用

Design and Application of FIFO Based on FPGA

为实现目标识别与跟踪的应用目的,在基于TMS320DM642的FIFO基础上扩展存储空间,提出一种基于FPGA实现SDRAM控制器的方法。分析所用SDRAM的特点和工作原理,介绍FPGA中SDRAM控制器的组成和工作流程,给出应用中读SDRAM的时序图。FPGA采用模块化设计,增强SDRAM控制器的通用性,更方便地满足实际需求。

In order to achieve the application of target recognition and tracking,the memory on the basis of TMS320DM642′FIFO is expanded,SDRAM controller of the implementation basing on the FPGA is designed.Firstly,the characteristics and principles of SDRAM are analyzed.Then,the composition of SDRAM controller and workflow in FPGA are introduced.The application in time of SDRAM timing chart is given.In order to meet the actual needs more convenient and enhance the versatility of SDRAM controller,FPGA used modular design.