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CCS/TMS320F280049C: can't set FILINIT bit

Gabriel Mendes
Prodigy 50 points

Part Number: TMS320F280049C

Tool/software: Code Composer Studio

Hi all,  

while debugging, I notice that the bit FILINIT (the one wich turn on the CMPSS filter) wasn't setting:

I followed the Filter Initialization Sequence (page 1496 - Technical Reference Manual) as you can see by the next two pictures:

(I've made these colors rectangles to make the visualization easier)

But is not working at all.

I'll be so glad if you all help me again.

Best regards,

- Severo

  • 0
    TI__Mastermind 28275 points
    Hi Severo,

    FILINIT is not a latching bit. By that i mean after writing "1" to it, the bit will go back to "0". Writing "1" will initialize the filter after which FILINIT goes back to "0". Is your filter not initializing?
  • 0 in reply to Frank Ankapong
    Prodigy 50 points

    Frank Ankapong said:


    FILINIT is not a latching bit. By that i mean after writing "1" to it, the bit will go back to "0". Writing "1" will initialize the filter after which FILINIT goes back to "0".

    Oh! I didn't know that, thank you! I thought it was a latching bit.

    Frank Ankapong said:


     Is your filter not initializing?

    Probably, the filter is initializing. My problem was with the bit going back to "0".

    Now, knowing how this initializing works, I will do another tests to verify the rest of the code. Thank you, again.

    Best regards,

    -Severo