高等电子技术的EDA部分，内部还有一个dds的vhdl代码，我参考该代码，实现了10位和8位的dds，在EPF10K10TC144-4芯片验证通过。-Advanced electronic technology EDA part of a dds within the VHDL code, I make reference to the code, achieved a 10 and 8 of the dds, in EPF10K10TC144-4 chip verification through.