quartus 8.1 ipcore lic,包含ddr、ddr2、fir、nco-quartus 8.1 ipcore lic, with ddr, ddr2, fir, nco

基于xc3sd1800afg676的开发板的DDR2的控制器的IPCORE，提供完整的代码和UCF。系统时钟频率为125Mhz。-The development board based on xc3sd1800afg676 DDR2 controller of IPCORE, provide a complete code and UCF. System clock frequency of 125Mhz.

DDR2 xilinx ipcore 头文件 可以进行读写DDR2操作的接口! 读写时注意 按照时序控制进行！-DDR2 xilinx top file， you can read or write DDR2 interface。 attention：please control it ！

本文档对Xilinx 公司FPGA开发环境中ISE中如何调用DDR2 IP进行了详细的说明。直接例化IPCORE,采用无TESTBENCH，无PLL的方式.-This document FPGA from Xilinx ISE development environment how to call DDR2 IP for a detailed descr iption. Direct instantiation IPCORE, no-TESTBENCH, no PLL ways.