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Original question:

CCS/TMS320C6748: C6748 execution too slow

CCS/TMS320C6748: C6748 library

jiahao niu
Prodigy 100 points
Part Number: TMS320C6748

Tool/software: Code Composer Studio

Hi,

I am trying to use TMS320C6748 to complete a closed-loop control design for motor drive application. I was using TMS320F28x before and there was an DCL library for me to easily design a PI controller. I am wondering if there is any similar library for TMS320C6748?

Thanks,

  • 0
    TI__Guru** 116170 points
    Jiahao,

    We currently don`t provide a dedicated control library for the DSPs but have some motor control users use the DSP for such applications. The C2000 code is C code/IQMATH based code that you should be able to cross compile for the DSP. We have also found that some publications have used MATLAB to generate the code as a starting point on C6000 and then used the architecture and compiler to run the control code optimally on the DSP.

    Unlike C2000 architecture the C6748 DSP has a two levels of Cache, which also needs to be setup appropriately, for best and deterministic performance, we have observed customers disable L1 cache and place all of the code and data into L2 SRAM.

    If you have the piece of DCL code that you were running on C2000 or provide a link to it so we can provide guidance or help you with the porting effort to the C6000 DSP.

    Regards,
    Rahul