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Timing the elapsed time (performance) of a function

David Harding
Prodigy 110 points


How do I get the current clock ticks?  I want to be able to get delta clock ticks within my C application running on a C2000 (F28335) processor which is also utilizing DSP/BIOS 5.xxx (CCSv4).  

Here is what I want to do. 

void AFunc(void) {

uint32 t0,t1,dt;

t0 = what_ever_function_will_get_me_current_clock_ticks();

<BODY-OF-THE-FUNCTION-TO-BE-TIMED>

t1 = what_ever_function_will_get_me_current_clock_ticks();

dt = t1 - t0;  // delta clock ticks

Thanks

  • 0
    Prodigy 110 points

    Here is what I did:

        InitCpuTimers();  // For this example, only initialize the Cpu Timers

        StartCpuTimer0();

    Then

            counter0 = ReadCpuTimer0Counter();

    << function of interest >>

            counter1 = ReadCpuTimer0Counter();

    The difference betwwen counter1-counter0 / clock_freq is the time difference.

    Sridhar