デジタル・シグナル・プロセッサ & ARM マイクロプロセッサ

FFT Implementation on the TMS320VC5505, TMS320C5505, and TMS320C5515 DSPs

The Fast Fourier Transform (FFT) is an efficient means for computing the Discrete Fourier Transform (DFT). It is one of the most widely used computational elements in Digital Signal Processing (DSP) applications. The TMS320VC5505 (VC5505) and TMS320C5505/15 (C5505/15) DSPs are ideally suited for such applications. They include an FFT hardware accelerator (HWAFFT) that is tightly coupled with the CPU, allowing high FFT processing performance at very low power. This application report describes FFT computation on the VC5505 and C5505/15 DSPs and covers the following topics:

• Basics of DFT and FFT
• VC5505 and C5505/15 DSP Overview Including the FFT Accelerator
• HWAFFT Description
• HWAFFT Software Interface
• Simple Example to Illustrate the Use of the FFT Accelerator
• FFT Benchmarks for the VC5505 and C5505/15
• Description of Open Source FFT Example Software
• Computation of Large (Greater Than 1024-point) FFTs on the VC5505 and C5505/15
• FFT Implementation on the TMS320VC5505, TMS320C5505, and TMS320C5515 DSPs (PDF 311 KB)
  2010年 6月 30日 
関連ファイル：
• FFT Implementation on the TMS320VC5505, TMS320C5505, and TMS320C5515 DSPs (ZIP 7 KB)
  2010年 6月 30日