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AP_InertialSensor: don't skip delay if we are a bit early

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this produces a bit more even timing
This commit is contained in:
Andrew Tridgell 2015-02-13 20:50:34 +11:00
parent 619196b6b3
commit 04bef5ccf3
1 changed files with 1 additions and 3 deletions
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4
libraries/AP_InertialSensor/AP_InertialSensor.cpp
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@ -1072,9 +1072,7 @@ void AP_InertialSensor::wait_for_sample(void)
if (_next_sample_usec - now <=_sample_period_usec) {
// we're ahead on time, schedule next sample at expected period
uint32_t wait_usec = _next_sample_usec - now;
if (wait_usec > 200) {
hal.scheduler->delay_microseconds(wait_usec);
}
hal.scheduler->delay_microseconds(wait_usec);
_next_sample_usec += _sample_period_usec;
} else if (now - _next_sample_usec < _sample_period_usec/8) {
// we've overshot, but only by a small amount, keep on