Compiler/AWR1642: Can I set the number of adc sample to 512 points in SRR function?

Silkworm

Part Number: AWR1642
Other Parts Discussed in Thread: AWR1843

Tool/software: TI C/C++ Compiler

Hi sir,

Can I set the number of adc sample to 512 points in SRR function?

I try to set this parameter in TI AWR1642 demo code but it's not work. (srr_config_chirp_design_SRR80.h << This head file.)

"#define PROFILE_SRR_ADC_SAMPLE_VAL (512U)"

however in "srr_config_chirp_design_USRR20.h" USRR function is able to work.

"#define PROFILE_USRR_ADC_SAMPLE_VAL (512U)"

Please help to clarify this question A.S.A.P.

Thanks!

over 6 years ago

0 Jitendra Gupta over 6 years ago

TI__Guru 69960 points

When you increase samplesize to 512, so it increased each chirp size and further frame data size, in flow resulting 1D-FFT data will be increase which will not reside on L3 memory.
USRR has lower no. of chirps compare to SRR configuration which 1D-FFT result size is lesser than L3 memory size.

If you want to use 512 sample size of SRR then better to decrease no. of chirp to 64 (instead of 128), it may reside in existing memory then. But it'll affect other application feature as well.

Regards,
Jitendra