DSP5502的FFT例程。好东西。我已经测试过了，很好用。做数字信号处理的朋友可以看看。-DSP5502' s FFT routines. Good stuff. I' ve tested, and very good use. Digital signal processing to do friends can see.

DSP5502的FIR程序，修改相应参数即可达到你想要的滤波效果。很好用。-DSP5502' s FIR program, modify the appropriate parameters to achieve the filtering you want. Good use.