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Reduce execution time, help me.

hoang cuong
Intellectual 305 points
Other Parts Discussed in Thread: TMS320F2812

Hi all !,

I'm from Vietnam and I have used TMS320F2812 for my project.

I meet the problem when I try to read the result  from ADC. It takes a long time for this conversion (about 3 micro sec when I measure with oscilloscope ) .  It would be great if anyone can tell me how to reduce time execution in this case. With this time (3 micro sec),  it can't be acceptable in my project.

I have attached herewith the part of my project code:

      Udc = AdcRegs.ADCRESULT0 >>4;//read ADC bit
      Is = AdcRegs.ADCRESULT1 >>4;

    Udc1=_IQmpy(_IQ(Udc),_IQ(3.0));//Scale for Udc value
    Udc11=_IQdiv(Udc1,_IQ(4095.0));

    Is1=_IQmpy(_IQ(Is),_IQ(3.0));//Scale for Is value
    Is11=_IQdiv(Is1,_IQ(4095.0));

Thanks very much!

Cuong.