Programming NIOSII interfaced with custom component, using Avalon MM Interface

For performance evaluation, I used the below template:

PERF_RESET(PERFORMANCE_COUNTER_0_BASE);

PERF_START_MEASURING(PERFORMANCE_COUNTER_0_BASE);

PERF_BEGIN(PERFORMANCE_COUNTER_0_BASE,1);

// Here is the code block to be tested.

// I wanted to know the cycles consumed during this block.

PERF_END(PERFORMANCE_COUNTER_0_BASE,1);

PERF_STOP_MEASURING(PERFORMANCE_COUNTER_0_BASE);

long time;

time = perf_get_section_time(PERFORMANCE_COUNTER_0_BASE, 1);

printf("\n\nTotal cycles consumed in FIR calculation = %ld cycles\n", time);

This returns the no of clock cycles consumed. And by knowing the oscillator frequency, we can calcuate the total time consumed in the block.

Thanks,

Anuj