• State Accepted Answer
  • Locked Locked
  • Replies 8 replies
  • Subscribers 18 subscribers
  • Views 11273 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

bit reverse

dan

I was hoping that there would be some psuedo or example code for the CMSIS generated bit reverse look up tables for the FFTs. I would like to try and extend the FFT to 8k in length. So I am looking at these tables, but can not figure out how they are generated, specifically the tables like armBitRevIndexTable128.

Thanks.

Parents
  • 0

    By the way, depending on your application, your input to the FFT might be real data. If that is the case you can represent your data in Q15 or Q31 format. The Q15 and Q31 versions of Real FFT functions in CMSIS-DSP support a length of 8192.

Reply
  • 0

    By the way, depending on your application, your input to the FFT might be real data. If that is the case you can represent your data in Q15 or Q31 format. The Q15 and Q31 versions of Real FFT functions in CMSIS-DSP support a length of 8192.

Children
No data