用来测试DDS程序的，使用的芯片是9854，语言为VHDL，里面含有测试结果图，对需要的朋友非常有用-DDS program used to test the chip using a 9854, language VHDL, which contains test results chart is very useful for a friend in need

基于FPGA的DDS的实现，源代码及PCB工程文件-Implementation of FPGA based on DDS, the source code and the PCB project file