• State Accepted Answer
  • Locked Locked
  • Replies 8 replies
  • Subscribers 22 subscribers
  • Views 11730 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 in reply to Daniel White

    Dan,

    Could you expand on the technique used to generate the bit reversal tables? I'm also trying to create an 8K variant as G. Goodwin was looking for previously.  The other tables that need expansion have psuedo code which can be used to generate future tables.  The bit reversal tables are less defined.

    I use arm_rfft_fast_f32 for the eventual calculation.


    Thanks!
    Quinn

Reply
  • 0 in reply to Daniel White

    Dan,

    Could you expand on the technique used to generate the bit reversal tables? I'm also trying to create an 8K variant as G. Goodwin was looking for previously.  The other tables that need expansion have psuedo code which can be used to generate future tables.  The bit reversal tables are less defined.

    I use arm_rfft_fast_f32 for the eventual calculation.


    Thanks!
    Quinn

Children
No data