【应用笔记】在SOPC Builder中使用DDR/DDR2 SDRAM控制器(Using DDR/DDR2 SDRAM With SOPC Builder) 3.4.0及其以后版本的DDR/DDR2 SDRMA控制器的MegaCore功能模块，支持SOPC Builder，可以在SOPC Builder系统中例化一个DDR/DDR2 SDRMA控制器。 The DDR/DDR2 SDRAM Controller MegaCore® function version 3.4.0 and later supports SOPC Builder, enabling the function to instantiate a DDR/DDR2 SDRAM Controller inside an SOPC Builder system. This application note discusses the following topics: ■ Implementing a DDR2 SDRAM Controller within SOPC Builder ■ Incorporating a Nios® II processor and other peripherals ■ Compiling the design and generating the programming file ■ Downloading the design to a board and running sample code on your design in hardware to test the read and write transactions Using DDR/DDR2 SDRAM With SOPC Builder August 2006, ver. 1.1 Application Note 398 Introduction The DDR/DDR2 SDRAM Controller MegaCore function version 3.4.0 and later supports SOPC Builder, enabling the function to instantiate a DDR/DDR2 SDRAM Controller inside an SOPC Builder system. This application note discusses the following topics: ■ Implementing a DDR2 SDRAM Controller within SOPC Builder ■ Incorporating a Nios II processor and other peripherals ■ Compilin……