HI, our project uses the TCI6630K2L processor. Now we want to reduce the peak to average ratio (PAR) of the transmitting antenna by adjusting the parameters of the CFR in the DFE.
I found DFE_LLD_SDS.pdf under Packages \ TI \ Drv \ DFE \ Docs in the SDK installation directory of the chip. According to the DFE_LLD_SDS description, we can adjust the PAR through the following interface functions:
DFE_Err Dfe_progCfrCoeff
(
DFE_Handle hDfe,
uint32_t cfrDev,
uint32_t numCoeffs,
uint32_t *cfrCoeff_i,
uint32_t *cfrCoeff_q
);
Input parameter numCoeffs ranges from 0 to 256, *cfrCoeff_i and *cfrCoeff_q range from 0 to 4095. my question is
1. What is the meaning of numCoeffs? What criteria are used to select this value in practice?
2. What is the meaning of each Coeff value? What criteria are used to select this value in practice?
Thank you very much.
