This is a upper pc software for our project, not very common used. But there maybe some src may be you need. Such as FFT/Sign extending/Use of JfreeChart and so on. It can communicate with the slave board by udp protocol, get data and show it's spectrum.
There exist only the source code of my project, and it was ognized by pocket.
You can create a new Eclipse project, and add all files in your src directory.