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CCS/TMS320F28377S: TMS320F28377S

vadim piskun
Expert 2250 points

Part Number: TMS320F28377S

Tool/software: Code Composer Studio

Hi,

How can i make this line of code to work

EPwm7Regs.CMPA.bit.CMPA = sqrt(((double)AdcaResultRegs.ADCRESULT0)/4096);

when I look at 

EPwm7Regs.CMPA.bit.CMPA it is always 0 and watch expression

sqrt(((double)AdcaResultRegs.ADCRESULT0)/4096)

shows me  "unknown" data type and this error

 'sqrt()' not found at sqrt(((double) (AdcaResultRegs).ADCRESULT0/4096))

thanks vadim

  • 0
    TI__Expert 3720 points

    Hi,

    You can make use of the following TMU intrinsic supported by C2000 compiler :

      EPwm7Regs.CMPA.bit.CMPA = __sqrt(((float)AdcaResultRegs.ADCRESULT0)/4096);

     


    Please make sure to enable TMU flag in compiler option.

    If my reply answers your question please click on "This resolved my issue" button located at the bottom of my post.

    Regards

    Himanshu

  • 0 in reply to Himanshu Chaudhary60
    Expert 2250 points

    Hi Himanshu

    It did not resolve the problem it is still the same, the watch expression gives me the same error

    __sqrt(((float)AdcaResultRegs.ADCRESULT0)/4096);unknown	'__sqrt()' not found	 at __sqrt(((float) (AdcaResultRegs).ADCRESULT0/4096))

    I have TMU support in compiler options tmu0

    thanks vadim

  • 0 in reply to vadim piskun
    TI__Expert 3720 points

    Hi,

    This intrinsic is supported by C2000 compiler thus CCS watch window won't be able to recognize "__sqrt()" keyword, I would recommend you to rather use this in code and store in some variable , let say "temp". Then observe "temp" in expressions window.

     temp = __sqrt(((float)AdcaResultRegs.ADCRESULT0)/4096);

     

    If my reply answers your question please click on "This resolved my issue" button located at the bottom of my post.

    Regards

    Himanshu