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Hack to address stuttering caused by ISR not finishing in time

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(PR #138)

When the ISR does not finish in time, the timer will
wrap in the computation of the next interrupt time.

This hack replaces the correct (past) time with a time not far in the future.
This commit is contained in:
Scott Lahteine 2015-09-04 15:59:19 -07:00 committed by Richard Wackerbarth
parent a356699882
commit 9f462f0cf5
1 changed files with 2 additions and 0 deletions
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2
Marlin/stepper.cpp
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@ -749,6 +749,8 @@ ISR(TIMER1_COMPA_vect) {
step_loops = step_loops_nominal; step_loops = step_loops_nominal;
} }
OCR1A = (OCR1A < (TCNT1 +16)) ? (TCNT1 + 16) : OCR1A;
// If current block is finished, reset pointer // If current block is finished, reset pointer
if (step_events_completed >= current_block->step_event_count) { if (step_events_completed >= current_block->step_event_count) {
current_block = NULL; current_block = NULL;