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Small fix for the PR #4980 (LIN_ADVANCE bug fix and optimization)

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・Fix a comment about timer
This commit is contained in:
esenapaj 2016-10-10 07:44:27 +09:00
parent f4ec265363
commit cfb5c24bc9
1 changed files with 1 additions and 1 deletions
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2
Marlin/stepper.cpp
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@ -604,7 +604,7 @@ void Stepper::isr() {
#endif // ADVANCE or LIN_ADVANCE #endif // ADVANCE or LIN_ADVANCE
#if ENABLED(ADVANCE) || ENABLED(LIN_ADVANCE) #if ENABLED(ADVANCE) || ENABLED(LIN_ADVANCE)
eISR_Rate = (timer >> 3) * step_loops / abs(e_steps[TOOL_E_INDEX]); //>> 3 is divide by 8. Reason: Timer 0 runs at 16/8=2MHz, Timer 1 at 16/64=0.25MHz. ==> 2/0.25=8. eISR_Rate = (timer >> 3) * step_loops / abs(e_steps[TOOL_E_INDEX]); //>> 3 is divide by 8. Reason: Timer 1 runs at 16/8=2MHz, Timer 0 at 16/64=0.25MHz. ==> 2/0.25=8.
#endif #endif
} }
else if (step_events_completed > (uint32_t)current_block->decelerate_after) { else if (step_events_completed > (uint32_t)current_block->decelerate_after) {