VHDL写的fpga程序，可产生三角波，方波据此波，正弦波，可实现任意频偏的调频，调相，调幅-Fpga write VHDL program can generate triangle wave, square wave accordingly wave, sine wave, can achieve any frequency offset of the FM, PM, AM

DA0832 波形输出，支持正弦，余弦，线形，三角波-DA0832 waveform output, support for sine, cosine, linear, triangle wave