Method time

libraries/AP_HAL_ChibiOS/DSP.cpp:295–303

#if DEBUG_FFT
 void DSP::StepTimer::time(uint32_t start)
 {
    _timer_total += (AP_HAL::micros() - start);
    _time_ticks = (_time_ticks + 1) % TICK_CYCLE;
    if (_time_ticks == 0) {
        _timer_avg = _timer_total / TICK_CYCLE;
        _timer_total = 0;
    }
}
#endif

#endif