LAUNCHXL-F280049C: running speed of some functions

Yale Li 李耀先

Hi Team,

My customer found that this function,

GPIO_writePin(myGPIOOutput0, 0);

, takes 100 clock cycles.

And this takes 3000 clock cycles:

for(i2 = 0; i2 < 100; i2++)
{
    buf2 += test2[i2];
}

Are these normal?

Thanks & Regards,

Yale Li

0 Siddharth Deshpande over 3 years ago

Yale,

Pls provide the compiler version used and also the mechanism used for calculating the CPU cycles.

Best Regards

Siddharth

0 Yale Li 李耀先 over 3 years ago in reply to Siddharth Deshpande

Hi Siddharth,

compiler version: TI v22.6.0.LTS

mechanism: clock enable

No optimization

Thanks & Regards,

Yale Li

0 Siddharth Deshpande over 3 years ago in reply to Yale Li 李耀先

Yale,

Thanks , will check it out and update you in a couple of days.

Best Regards

Siddharth

C2000 microcontrollers forum