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AWR2243: Example needed for loading Advanced Chirp LUT if using Advanced Framing

Eddie Arrant
Prodigy 130 points
Part Number: AWR2243

We are using the Cascade Example (C:\ti\mmwave_dfp_02_02_03_01\ti\example\mmWaveLink_Cascade_Example) 

The example code function: MMWL_advChirpConfigAll(),  calls the MMWL_advChirpConfig() once for each of the 10 advanced chirp parameters

and also builds the LUT table and loads that via (rlSetMultiAdvChirpLUTConfig)  or  AWR_ADVANCE_CHIRP_GENERIC_LUT_LOAD_SB

Do have an example how to do this, for Advanced Framing?  For example, if #SubFrames=4, and #Bursts = 5 and the START_FREQ is dithering every burst, (not every chirp)?

How does the BURST_LUT_INDEX_OFFSET and SF_LUT_INDEX_OFFSET work in this case?

thanks
Eddie

 

  • 0
    TI__Guru*** 147964 points

    Please give us some time to review this request

    thank you
    Cesar

  • 0 in reply to Cesar
    Prodigy 130 points

    Cesar, does you team have a response for this question (above)?

    Is this correct below:
    We have 5 bursts, 4 SFs, we want the Parameter 1 (Freq) to dither every burst and then reset after the SF is complete.
    Where the LUT data for the Freq dither is in LUT address 0,4,8,12,16, for bursts 1-5 respectively, 

    Param[ 0]: CHIRP_PARAM_INDEX : 1
    Param[ 1]: GLOBAL_RESET_MODE : 0
    Param[ 2]: DELTA_RESET_PERIOD : 1
    Param[ 3]: DELTA_PARAM_UPDATE_PERIOD : 0
    Param[ 4]: SF0_CHIRP_PARAM_DELTA : 0
    Param[ 5]: SF1_CHIRP_PARAM_DELTA : 0
    Param[ 6]: SF2_CHIRP_PARAM_DELTA : 0
    Param[ 7]: SF3_CHIRP_PARAM_DELTA : 0
    Param[ 8]: LUT_RESET_PERIOD : 0
    Param[ 9]: LUT_PARAM_UPDATE_PERIOD : 0
    Param[10]: LUT_PATTERN_ADDRESS_OFFSET : 0
    Param[11]: NUM_OF_PATTERNS : 1
    Param[12]: BURST_LUT_INDEX_OFFSET : 1
    Param[13]: SF_LUT_INDEX_OFFSET : 0
    Param[14]: LUT_CHIRP_PARAM_SIZE : 0
    Param[15]: LUT_CHIRP_PARAM_SCALE : 0
    Param[16]: MAX_TX_PHASE_SHIFTER_INTERNAL_DITHER : 0

    I assume the data in the LUT would look like this, can you verify this is correct:

    Base Addr in LUT [00]:   Freq dither #0 for burst 1 
    Base Addr in LUT [04]:   Freq dither #1 for burst 2
    Base Addr in LUT [08]:   Freq dither #2 for burst 3
    Base Addr in LUT [0C]:  Freq dither #3 for burst 4
    Base Addr in LUT [10]:  Freq dither #4 for burst 5

    regards
    Eddie

  • 0 in reply to Eddie Arrant
    TI__Guru*** 147964 points

    Hi,

    Unfortunately we don't have an example of Advanced Chirp Config.

    I will review your configuration and get back to you

    thank you

    Cesar