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Question regarding DFT list feature of fftc

Hi All,

I am working on TCI 6670 processor. I want to use multi block submission feature of fftc. But i have query wrt this, Is it possible to configure fftc in multi block form and enable duynamic scaling for this packet submission. I am able to configure multi packet dft submssion with static scaling but while configuring it with dynamic scaling i am getting 0 block exponent value for each block in the received packet. I tried with many different input but every time 0 is being reported as block exponent.

Are block exponent values reported by fftc correct. I have doubt because they are zero always for every input i feed to fftc. How can i confirm for this in dynamic scaling.


Regards

Naveen

  • Naveen,

    A block exponent of '0 means the formula  SUM (si) + sout – 3 + (LTE_FREQ_EN * SLTE) equates to '0'. This means sum of the scale values applied to the stages is '3' (assuming LTE frequency shift is disabled.

    Can you run one of the blocks of the multi-block as a a single block packet with dynamic scaling and see what the block exponent is reporting.