基于FPGA的圆机数据存储器的设计

The Design of Data Memory in Circular Knitting Machine Based on FPGA

为扩展嵌入式圆机选针数据的存储空间,提高选针数据读写速度,结合Altera公司的主流FPGA芯片EP1C6Q240的实际系统,在FPGA中采用了模块化设计方式,给出了一种基于FPGA的SDRAM控制器的实现方法。分析了所用SDRAM的特点、原理,介绍了SDRAM控制器的组成框图及各模块功能,给出了读写SDRAM的时序图。

In order to expand the needle selection data storage space of embedded circular knitting machine, improve data access speed of needle election. The design method of modularization is adopted in FPGA On the mainstream FPGA chip EPIC6Q240.This paper presents a FPGA-based SDRAM controller implementation methods. The characteristics of the corresponding SDRAM are analyzed and the schematic diagrams and the timing are given.