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TMS320F28335: TMS320F28335 fixed vs floating

Debanjan chatterjee
Intellectual 325 points

Part Number: TMS320F28335

Hello All,

I have to solve a fairly complex model of a system online for my control application( MPC).  The model is taking too much time to compute 4.2 us. I have optimized the additions, multiplications etc as much as possible to reduce it ,but I am able to reduce it to only 3.8us. I need further reduction about 2.2us etc. Can coding in fixed point reduce it further or is the processor optimized already for floating point operations and both will take same time? Is there any other method to reduce the timing given same no of math operations?

Regards

  • 0
    Guru 192875 points
    Hi Debanjan,

    This controller already has FPU enabled. You can check Project -> Properties and relevant section if "-fpu" is selected or not. You can also try using IQMath library but I won't be able to give you the direct benefit in clock cycles or time.

    Regards,
    Gautam