本文以在PFGA芯片中实现一个简单的可控正弦信号发生模块的设计为例，详细介绍DSP Builder的使用方法，从而有介绍一种另外PFGA—DSP算法的程序方法。-In this paper, in the PFGA chip to achieve a simple sinusoidal signal control module design as an example, detailing the use of DSP Builder methods, thus introducing a kind of additional PFGA-DSP algorithm procedural methods.