FPGA实现高速实时多端口SDRAM控制器的研究

为了满足多个设备同时存取高速数据的需求，介绍了利用Xilinx高性能可编程逻辑器件Virtex6 FPGA实现高速实时多端口DDR3 SDRAM控制器的原理和方法，在一个实时图像处理系统平台上实现了对单片SO-DIMM DDR3内存条的多设备实时访问控制。通过ChipScope工具采样输入输出数据，验证其可行性，分析计算出端口速率和其他主要时间参数。实验结果显示高速实时多端口SDRAM控制器具有集成度高、传输带宽高、功耗低的优点。在多设备同时读写高速数据的系统中具有很高的实用价值。

Research of high speed real-time multiport SDRAM controller realized on FPGA

In order to meet the requirement that several devices access high rate data at the same time, this paper introduces the theory and method of realizing high speed real-time multiport controller of DDR3 SDRAM on Xilinx high performance programmable logic device Virtex6 FPGA, and realizes controlling several devices real-time accessing a single SO-DIMM DDR3 memory bank on a real-time image processing system platform. It takes sample of input or output data by ChipScope to validate its feasibility. It analyzes and computes its port rate and other primary time parameter. Experimental result shows that high speed real-time multiport controller of DDR3 has the advantages of high integration level, high transmission bandwidth and low power consumption. It has great use value in systems of several devices accessing high rate data at the same time.