能够产生方波、三角波、正弦波、及阶梯波，并且可以通过选择开关选择相应的频率输出和波形输出；通过按键确定输出的波形及确定是否输出波形.-Able to generate square wave, triangle wave, sine wave, and wave ladder, and can select the appropriate choice of switching frequency output and the waveform output through the keys

该vhdl代码用两个rom模拟产生两路正弦波，并设计了一个乘法器将两路正弦波相乘。-The two vhdl code with two rom analog sine wave and design a multiplier to multiply two sine wave.

这是一个基于vhdl编写的正弦信号发生器，实现的功能为发生正弦波，给dac 0832采样-This is a sine signal generator based on VHDL code, realize the function of sine wave, give dac 0832 samples