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sincos table in 28335

Milarepa
Expert 1670 points
Other Parts Discussed in Thread: CONTROLSUITE

I am not using any lookup table or iqmath for sincos. My all variables are in float except for some int variables. My switching frequency is 10kHz

I find some mistake happening in park transformation which uses sines and cosines.

Is it because it is taking too much time to look up the sine cos values from some internal memory.

In that case, can u suggest how to generate a LUT for sincos.

Thanks 

  • 0
    TI__Mastermind 19810 points
    Shyam,

    There is IQ Math tables available in boot ROM memory. Please check the controlSuite folder (C:\ti\controlSUITE\libs\utilities\boot_rom\2833x) , the ROM description PDF should give some insight on the tables as well. The Map files that can be found in the source zip file will provide you with the addresses of tables in ROM that you can refer to in your application.

    Hope this helps.

    Best Regards
    Santosh Athuru