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

ad9850 串行控制 正弦波 方波 发生器 驱动程序 也有并行控制代码-the ad9850 serial control sine wave square wave generator driver also has a parallel control code

对板卡HT7505的驱动 以及方波脉冲的产生程序-HT7505 driver on board as well as a square wave pulse generator