采用DSP builder v9.1实现正交两路单频输出，已经在EP3C80上面跑通，经实际验证是正确的。此例程非常简洁明了，可以作为DSP builder的入门示例。里面已经包含了生成好的modelsim仿真示例和仿真结果。-Achieved using DSP builder v9.1 orthogonal two single-frequency output, has been run through the EP3C80 above, are proven to be correct.