OpenRisc1200的工程，基于ep3c16，内含OR1200核、SDRAM、SPI、FLASH，下载后将ROM压缩包放到D盘解压即可综合-OpenRisc1200 project, based ep3c16, containing OR1200 core, SDRAM, SPI, FLASH, ROM after downloading unzip the compressed package can be integrated into the D drive

fpga实现ddr数据收发测试，完整的工程，下载解压后，即可正确运行，已多次验证无误(FPGA DDR data receive and receive test, complete engineering, download and unzip, can run correctly, has been verified many times)